RUPAC2012 - List of Keywords (target)

Paper	Title	Other Keywords	Page
MOYCH02	e⁺e⁻ Collider VEPP-4M: Status and Prospects	collider, electron, luminosity, synchrotron	20
	E.B. Levichev BINP SB RAS, Novosibirsk, Russia
	In the paper we discuss recent results and prospects of VEPP-4M collider in the field of high energy physics. The experimental program in the low energy range (less than 2 GeV per beam) is almost completed and in future we are going to concentrate on beam energy increase. Also we describe the VEPP-4M features for other (non-HEP) experiments including synchrotron radiation, beam test facility, accelerator physics issues, etc.
	Slides MOYCH02 [2.707 MB]

TUZCH01	Current Plans for Beam Cooling at FAIR	antiproton, ion, electron, storage-ring	63
	M. Steck GSI, Darmstadt, Germany
	In the new FAIR accelerator facility the production of intense secondary beams largely relies on beam cooling. The pre-cooling of secondary beams, either antiprotons or rare isotopes, is performed in the large acceptance Collector Ring (CR). A stochastic cooling system is under development which can be applied to both species, although they have different velocities. After transfer of the pre-cooled beams to the High Energy Storage Ring (HESR) stochastic and electron cooling will be available. In the HESR cooling allows accumulation of secondary beams, improvement of beam quality and luminosity for internal experiments and compensation of beam heating by the internal target. The proposed cooling procedures and the status of the beam cooling systems will be reviewed.
	Slides TUZCH01 [4.493 MB]

WEACH01	Use of Bent-Crystal Deflectors to Steer Beam in U-70 Accelerator of IHEP - Status and Prospects	extraction, proton, ion, focusing	95
	A.G. Afonin, V.I. Baranov, Y.A. Chesnokov, V.A. Maisheev, V. Terekhov, I.A. Yazynin IHEP, Moscow Region, Russia
	The report presents an overview the results of IHEP activity in the field of study and using bent crystals to steer high-energy proton and ion beam obtained during 2010-2012. The hardware installed to study crystal collimation and extraction is described. A new dedicated beam transfer line was arranged to study the performance of crystals. It has been shown that the crystal deflectors developed are capable of sustaining long-term operation to deliver high-energy extracted beams for fixed-target physics. Experience with practical applications of bent crystals are outlined. First results on the extraction 24.1 GeV/nucleon carbon ions are also presented.

WEBCH01	The Status of the SARAF Phase-I Linac	rfq, linac, proton, status	103
	L. Weissman, Y. Ben Aliz, D. Berkovits, O. Dudovich, I. Eliyahu, I. Fishman, I.G. Gertz, A. Grin, A. Kreisler, G. Lempert, I. Mardor, A. Perry, E. Reinfeld, J. Rodnizki Soreq NRC, Yavne, Israel
	Phase I of the Soreq Applied Research Accelerator Facility - SARAF is under operation at the Soreq Nuclear Research Center. According to Phase I design specifications, SARAF superconducting linear RF accelerator should yield 2 mA protons and deuterons CW beams at energies up to 4 and 5 MeV, respectively. The status of Phase I main components is reported as well as the beam operation experience accumulated recently. The latter include acceleration of a 1 mA CW protons beam up to 3.5 MeV and 1 mA pulsed, duty cycle of few %, deuterons beam to up to 4.7 MeV. Further planned improvements in the current facility and plans for the future Phase II of the SARAF linac are discussed.
	Slides WEBCH01 [7.617 MB]

WECCH01	Advances of Light-Ion Acceleration Program in the U70	ion, extraction, proton, light-ion	120
	S.V. Ivanov IHEP, Moscow Region, Russia
	The paper reports on the recent progress in implementing the program of accelerating light ions in the Accelerator Complex U70 of IHEP-Protvino. The list of milestones achieved since RuPAC-2010 includes: (1) Proof-of-principle acceleration of Carbon-12 to the top available 34.1 GeV per nucleon (specific kinetic energy). (2) Circulation and slow extraction from U70 of the carbon beam at flat-bottom 455 MeV per nucleon. (3) The first ever successful extraction of Carbon nuclei at 24.1 GeV per nucleon to the existing beam transfer line #22 followed by feeding the FODS experimental facility with carbon beam for fixed-target high-energy nuclear physics start-up.
	Slides WECCH01 [1.956 MB]

THBOR03	A Possibility of High-Energy Bremsstrahlung Dosimetry by Indium Activation	electron, simulation, radiation, photon	155
	V.L. Uvarov, A.N. Dovbnya, V.V. Mytrochenko, V.I. Nikiforov, S.A. Perezhogin, Yu.V. Rogov, V.A. Shevchenko, I.N. Shlyakhov, B.I. Shramenko, A.Eh. Tenishev, A.V. Torgovkin NSC/KIPT, Kharkov, Ukraine
	Development of a number of promising photonuclear technologies is connected with the use of bremsstrahlung sources having end-point energy up to 100 MeV and average radiation power of tens kW. Commonly, such sources are created on the basis of high-current electron linacs. A possibility of bremsstrahlung dosimetry by means of activation of a target from indium of natural composition and absorbed dose determination through the specific activity of the 115mIn isomer is reported. Preliminary study of isomer photoactivation as well as the yield of reference reactions from simultaneously irradiated natural molybdenum was conducted by simulation technique. Joint measurement of the 115mIn, 90Mo, 99Mo activity and absorbed dose in the PMMA standard dosimeters were carried out at LU-10 and LU-40 linacs of NSC KIPT in the electron energy range 8…70 MeV. It was found that, within the range of study, the ratio of the 115mIn specific activity to absorbed dose in the PMMA slightly depends on the bremsstrahlung end-point energy.
	Slides THBOR03 [0.553 MB]

FRXCH05	Irradiation Facilities and Complexes of INRP RFNC-VNIIEF	electron, radiation, neutron, cathode	176
	N.V. Zavyalov, V.F. Basmanov, A.A. Devyatkin, V.S. Gordeev, S.A. Gornostay-Polsky, A.V. Grishin, A.V. Grunin, V.F. Kolesov, G.A. Myskov, S.T. Nazarenko, V.T. Punin, V.A. Savchenko, A.V. Telnov, S. Vorintsov VNIIEF, Sarov (Nizhnii Gorod), Russia
	The given review presents installations produced and applied at the Nuclear Radiation Research Institute (NRRI) of RFNC – VNIIEF to simulate under laboratory conditions the effects of nuclear explosion and space ionizing radiation on the special-purpose installations. Available is a brief description of the installation itself and characteristics of different-type electron accelerators and two irradiation complexes PUL'SAR and LIU-10M-GIR2 created on the base of high-current linear induction electron accelerators and pulsed nuclear reactors. There are considered electron accelerators GAMMA and BETA-8 that are being created at present.

FRXOR01	Technique and Instrumentation For Bunch Shape Measurements	electron, linac, electromagnetic-fields, ion	181
	A. Feschenko RAS/INR, Moscow, Russia
	Bunch shape is one of the most important, interesting but difficult to observe characteristics of a beam in ion linear accelerators. Different possibilities of bunch shape measurements are considered but the emphasis is put on the Bunch Shape Monitors (BSM) developed in INR RAS. The operation of BSM is based on a coherent transformation of a longitudinal structure of a beam under study into a spatial distribution of a secondary electron beam through rf scanning. BSM characteristics found both by simulations and experimentally are presented; the ultimate parameters and the limitations are discussed. Modifications of BSM are described. Some experimental results of bunch observations are demonstrated.
	Slides FRXOR01 [6.339 MB]

FRACH02	High-voltage Accelerators Intended to Produce Continuous and Pulse Neutron Fluxes	ion, neutron, ion-source, high-voltage	189
	D.A. Solnyshkov, A.N. Kuzhlev, N.P. Mikulinas, A.V. Morozov, V.D. Shiltsev, G.G. Voronin NIIEFA, St. Petersburg, Russia
	Recently, in NIIEFA has been designed a series of high-voltage accelerators intended to produce continuous and pulse neutron fluxes with a yield from 10 to the tenth power to 10 to the twelwth power. The facilities designed can be used for operation in the continuous, microsecond and nanosecond modes, in any combination. In the pulse microsecond mode, ion currents of up to 100 mA with pulse lengths ranging from 2 up to 100 mks can be obtained on target. In the nanosecond mode, the accelerator allows an ion beam current of up to 5 mA with a pulse length in the range of 2-30 ns to be obtained.
	Slides FRACH02 [2.507 MB]

FRBCH02	Project of Low-Energy Accelerator Driven Power Plant	neutron, proton, linac, DTL	224
	A.G. Golovkina, D.A. Ovsyannikov St. Petersburg State University, St. Petersburg, Russia A.A. Bogdanov, I.V. Kudinovich, V.P. Struev AN Krylov SRI, St. Petersburg, Russia Y.A. Svistunov NIIEFA, St. Petersburg, Russia
	Project of low-energy accelerator driven nuclear power plant is considered. The accelerator driven system (ADS) with subcritical fast reactor, proton linac and fissile target is proposed. The main performance data of the ADS: proton beam energy 300-400 MeV, accelerator average current 5 mA, reactor thermal power 200 MW, core effective multiplication factor Keff=0.98. The principal design features of the power plant are also represented.
	Slides FRBCH02 [2.663 MB]

FRBCH04	VITA Based Neutron Source - Status and Prospects	neutron, proton, ion, vacuum	230
	S.Yu. Taskaev, V.I. Aleynik, A.G. Bashkirtsev, B.F. Bayanov, M.V. Kamkin, D.A. Kasatov, A.S. Kuznetsov, A.N. Makarov, I.M. Schudlo, I.N. Sorokin, M.A. Tiunov BINP SB RAS, Novosibirsk, Russia
	Funding: Ministry of Education and Science of Russian Federation (grant 16.518.11.7038) At the BINP, a pilot epithermal neutron source is now in use. It is based on a compact Vacuum Insulation Tandem Accelerator and uses neutron generation from the reaction 7Li(p,n)7Be. Generation of neutrons was established and in vitro experiments were held. Most recent investigations on the facility are related with: i) studying the dark currents and breakdowns, ii) analyzing and suppressing the high intensity dark currents, iii) measuring the intensity and the spectra of the X-ray radiation, iv) optimization of the H-beam injection into the accelerator, v) placing and calibrating the new gas stripping target. The results of these studies are discussed in the present work. Investigations resulted in increasing of mean current of the proton beam in stable mode (from 0.1 – 0.7 to 1.5 - 2 mA). In the nearest future new experiments are planned, including in vitro tests, blistering investigation, spectrum and flux measuring for neutrons and gamma, calculating the dose absorbed by phantom. Different ways of providing additional stability to the accelerator, of increasing the current of the proton beam are discussed in this work, as well as the ways of creating the therapeutic beam and strategies of applying the facility for clinical use.
	Slides FRBCH04 [2.526 MB]

FRBCH06	Project of the Radioisotope Facility RIC-80 (Radioactive Isotopes at Cyclotrone C-80) in PNPI	cyclotron, ion, proton, diagnostics	236
	V.N. Panteleev, A.E. Barzakh, L.Kh. Batist, D.V. Fedorov, A.M. Filatova, K.A. Mezilev, P.L. Molkanov, F.V. Moroz, Yu.M. Volkov PNPI, Gatchina, Leningrad District, Russia
	It is well known presently that radionuclides produced with cyclotrons have very good nuclear-physical characteristics for use in medicine and a set of these nuclides is much wider than produced with the reactors. At PNPI a high current cyclotron C-80 with the energy of extracted proton beam of 40-80 MeV and the current up to 200 mkA is under construction. It is planned to start its operation at the end of 2012. One of the main goals of C-80 is production of a wide spectrum of medical radio- nuclides for diagnostics and therapy. At present time a project is worked out for the construction of radioisotope complex RIC-80 (Radio Isotopes at the cyclotron C-80) at the beam of C-80. In the presented submission the project of RIC-80 complex is discussed, which includes four target stations for the production of a wide set of radionuclides for medicine. The peculiarity of the proposed radioisotope facility is the use of the mass-separator with the target-ion source device as one of the target stations for on-line, or semi on-line production of a high purity separated radioisotopes. The possibility of production of different medical radionuclides, including relatively short-lived ones, is discussed as well.
	Slides FRBCH06 [1.101 MB]

MOPPA012	Optimization of Laser Radiation Pressure Accelerator for Ion Generation	laser, proton, acceleration, ion	269
	G. Dudnikova ICT SB RAS, Novosibirsk, Russia D. Gorpinchenko ICM&MG SB RAS, Novosibirsk, Russia C.-S. Liu, T.-C. Liu, R.Z. Sagdeev, X. Shao, J.J. Su UMD, College Park, Maryland, USA
	Compact laser-driven accelerators are an attractive alternative for monoenergetic proton and ion generation in conventional RF accelerator because the particle acceleration electric fields can reach tens GV/cm, which allows reduction of the system size. The scheme for generating quasimonoenergetic proton with Radiation Pressure Acceleration (RPA) has the potential of leading to table-top accelerators as sources for producing 50-250 MeV protons. Theoretical and computational studies of ion energy scaling of RPA are presented. 2D and 3D PIC simulations are performed to study limitations of energy gain due to Rayleigh-Taylor instability and how is the Rayleigh-Taylor instability suppressed by density fluctuations or inhomogeneities of targets. Energy transfer efficiencies and qualities of accelerated proton beams are discussed. Absolute dose, distal, penumbra of protons accelerated by PRA in a water phantom is calculated by Geant4 Monte Carlo simulations for particle therapy applications.

MOPPA015	Proposal of Laser Ion Beam Accelerator for Inertial Fusion	ion, laser, acceleration, heavy-ion	272
	F. Scarlat, A.M. Scarisoreanu INFLPR, Bucharest - Magurele, Romania
	The inertial nuclear fusion with laser beams, relativistic electron beams, ion beams, micro-particle beams and superconducting projectiles has been and is investigated analytically and numerically calculated by various authors along years and nowadays. Starting from the record laser peak power of 1.25 PW and radiation peak intensity of 100 EW/square centimeter produced at LLNR using the chirped pulse amplification (CPA) laser technology as well as from ELI Nuclear Physics - laser system, 3 APPOLON 10 PW (150 J/ 15 fs) proposed to be realized, this paper presents the principle and the configuration of a compact ion accelerator with optical laser in an ultra-relativistic regime, for the inertial nuclear fusion. The accelerator operation principle is based on the interaction of a laser beam with plasma. Plasma is an ideal medium for the acceleration of particles because it may stand longitudinal electric fields of high values (several GV/m), approximately three orders of magnitude greater than the ones obtained with RF cavity (limited to 100 MV/m). Plasma allows the conversion of the electromagnetic field of the laser radiation into plasma waves which can capture and accelerate the charged particles. Moreover, the main system parameters of the accelerator are also presented.

MOPPA031	Residual Activity in Heavy-Ion Accelerators as Beam-Loss Limiting Factor	ion, heavy-ion, proton, accumulation	302
	V. Chetvertkova IAP, Frankfurt am Main, Germany V. Chetvertkova, E. Mustafin, I. Strašík GSI, Darmstadt, Germany
	Residual activity is the main beam-loss limiting factor in high-energy proton accelerators. In order to ensure 'hands-on' maintenance the losses of proton beam should be kept below 1 W/m. It has been shown in our previous publications that the beam-loss criteria for heavy-ion machines may be established by rescaling the '1 W/m criterion' for different heavy ions. For protons the scaling factor is obviously 1. Scaling factors for other ions depend on the charge-mass number of the ion and on the beam energy. For example, for U ions with energy E = 200 MeV/u the scaling factor is 60, i.e. 60 W/m losses of U beam are tolerable from the 'hands-on' maintenance point of view, whereas for U ions with E=1 GeV/u the scaling factor is just 5. In the present paper we show that this scaling factor concept has natural limits of applicability. In the case of very low beam energies or in the case of estimates of long-term accumulated residual activity the tolerable beam-loss criteria cannot be obtained by simple rescaling '1 W/m criterion' with one single number.

TUPPB018	Simulation of Hollow Ion Beam Formation Line	simulation, cavity, ion, quadrupole	353
	H.Y. Barminova, N.N. Alexeev, A. Golubev, T. Kulevoy, A. Sitnikov, T. Tretyakova ITEP, Moscow, Russia
	Heavy ion beams can be used for the matter extreme state generation, and forming line must satisfy to certain strict requirements for beam brightness and focus position. In paper* system was proposed for hollow beam formation in order to generate laboratory plasma with energy deposition in cylindrical target. The system is based on the principle of the beam rotation by means of RF-cavities (so called "wobbler"). The similar system is proposed in ITEP**, where the basic part of line consists of two four-cell cavities and focusing quadrupole triplet. To calculate wobbler and magnetic triplet parameters two codes were used – "Transit", developed in ITEP, and G4Beamline, developed in Muons Inc. The beam was simulated for two kinds of particles – multicharged ions of Со and protons with equivalent energy. A comparative analysis of optical system parameter and beam parameter obtained in both simulations was performed. In condition of focus position restriction and spot geometry required aberrations were shown to be taken into account correctly. V. Fortov et al. NIM A 415, p.20 (1998). S. Minaev et al. NIM A 620, р.99 (2010). * S. Kolesnikov et al. High Pressure Research, vol.30, No 1, p.83 (2010).

WEPPC003	Beam Pulse Separation System of INR Linac	extraction, linac, vacuum, cavity	451
	V.L. Serov, N.I. Brusova, A. Feschenko, O.V. Grekhov, Y.Z. Kalinin, V.N. Mikhailov, A.A. Stepanov RAS/INR, Moscow, Russia B.O. Bolshakov, A.V. Pozhensky NIIEFA, St. Petersburg, Russia
	The activity for beam intensity increasing and beam use efficiency improvement is under progress in INR linac. An important stage is the development and implementation of the Beam Pulse Separation System in the accelerator intermediate extraction area (160 MeV). The system is intended for distribution the beam pulses between Isotope Production Facility (up to 160 MeV) and the Experimental Facility located downstream of the accelerator exit. The report describes the upgrade of intermediate extraction area as well as the first results of experiments with the beam.

WEPPC005	Extreme Density Charge Electron Bunches	electron, linac, radiation, controls	456
	S. Proskin, A. Kulago MEPhI, Moscow, Russia
	This paper presents untraditional approach for obtaining the DLWG limited bunch charge (LBC). The maximum energy of accelerated bunch is considered. As a result the bremsstrahlung maximum dose rate evaluation is obtained

WEPPC020	Quadrupole Harmonics Tuning by Nose Pieces	quadrupole, sextupole, insertion, octupole	489
	T.V. Rybitskaya, E.S. Kazantseva, B.A. Skarbo, A.A. Starostenko, A.S. Tsyganov BINP SB RAS, Novosibirsk, Russia
	A part of quadrupole lenses for NSLS-II main ring were manufactured at Budker Institute of Nuclear Physics. Some types of lenses have nose pieces on poles. Nose pieces permits correcting magnetic field harmonics. Corrections of octupoles, sextupoles and allowed harmonics were realized. Also corrections of amplitude of dependence sextupole harmonic from current were realized for some lenses.

WEPPC024	Design, Simulation and Optimization of a Solenoid for ES-200 Electrostatic Accelerator	solenoid, simulation, focusing, proton	498
	M. Asgarpour, E.E. Ebrahimibasabi, S.A.H. Feghhi, M. Khorsandi sbu, Tehran, Iran N. Khosravi Zanjan University, Zanjan, Iran
	Solenoids have important role in focusing the beam in drift tube of charge particle accelerators. In order to optimize the beam current in ES-200, an electrostatic proton accelerator at Shahid Beheshti University, design and simulation of a suitable solenoid has been performed. Using CST Studio package, simulation results has been validated in comparison with theoretical formula. According to the results we optimized the design using CST to have minimum beam current on drift tube.

WEPPC051	Proton Channel that Provides Simultaneous Independent Operation of a Treatment Room of Proton Therapy and Neutron Sources of the Experimental Complex INR RAS	proton, neutron, septum, controls	544
	E.V. Ponomareva, S.V. Akulinichev, M.I. Grachev, L.V. Kravchuk RAS/INR, Moscow, Russia V.N. Zapolsky IHEP, Moscow Region, Russia
	The manufactured magneto-optic channel in the experimental complex of Moscow meson factory INR RAS, the system of splitting beams into a neutron source and the channel for medical application are specified. The system of independent adjustment of energy of protons for a medical channel is described.

WEPPC055	High Efficiency [F18]Fluoride Target System for Efremov Institute CC-18/9 Cyclotron	proton, cyclotron, ion, niobium	554
	D. Sysoev RRCRST, Pesochniy, Russia
	Radionuclide fluoride-18 is produced by 18O(p,n)18F nuclear reaction in irradiating H2[18O] enriched water. The former fluoride-18 target system to this cyclotron, supplied by the cyclotron producer, The Efremov Institute, possesses insufficient productivity, not greater than 1 Ci of fluorine during 2 hour irradiation and also it doesn't allow achieving high radiochemical yields in producing radiopharmaceuticals due to contamination of irradiated water with metallic impurities from target body. To provide the radiopharmaceutical department of Russian Research Center for Radiology and Surgical Technologies with required amount of fluoride-18 radionuclide, the new target system has been designed and tested. This target system allows obtaining 5 Ci of fluoride-18 at beam current of 50 mkA during 2 hour irradiation and ensures minimum amount of metal contaminations and, hence, higher radiochemical yield (up to 90% decay corrected, F18-FDG).

WEPPC057	Calibration Testing of the Stripping Target of the Vacuum Insulated Tandem Accelerator	ion, proton, vacuum, high-voltage	560
	A.S. Kuznetsov, V.I. Aleynik, I.M. Shchudlo, I.N. Sorokin, S.Yu. Taskaev, M.A. Tiunov BINP SB RAS, Novosibirsk, Russia
	Funding: The work supported by the Ministry of Education and Science of the Russian Federation. The Vacuum Insulated Tandem Accelerator was developed in the Budker Institute of Nuclear Physics to produce epithermal neutrons for boron neutron capture therapy in the 7Li(p,g)7Be reaction. The parameters of the generated radiation allow us to carry out in vitro and in vivo investigations of BNCT. In present moment the modernization of the facility elements is carrying out to meet the parameters required for clinical usage. Presented work is aimed on modernization of the gas stripping target that is used in the Vacuum Insulated Tandem Accelerator to recharge negative hydrogen ions into protons. The target was modernized to get higher efficiency of the beam transportation and to raise the current of the accelerated proton beam. The design of the modernized stripping target, the calculated data on gas flow rate and recharge effectiveness, also the results of experimental measurement of transported current depending on the gas flow rate are presented. The method of the target thickness determination and the procedure to adjust the regime of gas flow gate to get the required recharging effect were suggested. V. Aleynik, A. Burdakov, V. Davydenko, et al. BINP accelerator based epithermal neutron source. Applied Radiation and Isotopes, 69 (2011) 1635-1638.

WEPPC059	Electron Beam Image Visual Monitoring	electron, monitoring, linac, gun	563
	V.N. Boriskin, I.A. Chertishchev, N.G. Reshetnyak, K. Romanovsky, V.A. Shevchenko, I.N. Shlyakhov, A.Eh. Tenishev, V.L. Uvarov, V. Zakutin NSC/KIPT, Kharkov, Ukraine
	The system for visual monitoring of the electron beam features was developed and implemented. This system is based on registration of optical radiation, which is generated under object-beam interaction. The system comprises image transferring channel, remote-controlled digital photo-camera, connected with PC by USB-interface as well as proper software. The images obtained give information on the beam density distribution over the surface of the object being irradiated. 100 KeV and 10 MeV electron beams was researched.

WEPPC060	Experimental Channel for Proton Beam with Energy 9 GeV	proton, quadrupole, vacuum, scattering	566
	M.M. Kats ITEP, Moscow, Russia
	It was described one of possible version of experimental channel for proton beam with energy 9 GeV for ITEP. It based on proton beam after quick extraction, on existing experimental hall and on existing quadrupoles.

WEPPD044	Developing of the Synchronization System for Accelerating-Storage Facility ITEP-TWAC	controls, linac, heavy-ion, status	641
	A.Y. Orlov, P.N. Alekseev, S.V. Barabin, D.A. Liakin ITEP, Moscow, Russia
	The renovation of the ITEP-TWAC synchronization system is a complex and challenging matter. This system must provide a full-scale timing signal set for all existing and foreseeing modes of operation of the two-ring accelerator facility. Complete design covers all levels of a design hierarchy like decision concerning the new system architecture or basic electronic modules development. In this article we present a description of most important parts of the synchronization system.

WEPPD059	AIRIX Measurement Chain Optimization For Electron Beam Dynamic and Dimensional Characteristics Analysis	electron, emittance, beam-transport, extraction	677
	F. Poulet, V. Bernigaud, H. Dzitko, J.K. Kranzmann, C. Noël, O. Pierret CEA, Pontfaverger-Moronvilliers, France C. Chollet CEA/DAM/DIF, Arpajon, France
	AIRIX is a linear accelerator dedicated to X-ray flash radiography at CEA's hydrotest facility. It has been designed to generate an intense X-ray pulse using a 2 kA, 19 MeV and 60 ns electron beam. The electron beam transport in the accelerator is insured by the knowledge of the dynamic and dimensional characteristics of the beam created downstream the injector. These characteristics are assessed from a measurement chain, established by adapted optics and an intensified camera, aiming at observing the Cerenkov radiation produced during the interaction of electrons with a mylar target placed in the beam. This paper deals with the characterization, and comparison with the previous model, of a new intensified camera which was experimentally tested on AIRIX during an injector characterization campaign. This allowed defining profile and emittance beam characteristics. The obtained results are promising and revealed very interesting properties in particular in term of dynamic, temporal resolution, linearity and signal-to-noise ratio.

Paper

Title

Other Keywords

Page

MOYCH02

e⁺e⁻ Collider VEPP-4M: Status and Prospects

collider, electron, luminosity, synchrotron

20

E.B. Levichev
BINP SB RAS, Novosibirsk, Russia

In the paper we discuss recent results and prospects of VEPP-4M collider in the field of high energy physics. The experimental program in the low energy range (less than 2 GeV per beam) is almost completed and in future we are going to concentrate on beam energy increase. Also we describe the VEPP-4M features for other (non-HEP) experiments including synchrotron radiation, beam test facility, accelerator physics issues, etc.

Slides MOYCH02 [2.707 MB]

TUZCH01

Current Plans for Beam Cooling at FAIR

antiproton, ion, electron, storage-ring

63

M. Steck
GSI, Darmstadt, Germany

In the new FAIR accelerator facility the production of intense secondary beams largely relies on beam cooling. The pre-cooling of secondary beams, either antiprotons or rare isotopes, is performed in the large acceptance Collector Ring (CR). A stochastic cooling system is under development which can be applied to both species, although they have different velocities. After transfer of the pre-cooled beams to the High Energy Storage Ring (HESR) stochastic and electron cooling will be available. In the HESR cooling allows accumulation of secondary beams, improvement of beam quality and luminosity for internal experiments and compensation of beam heating by the internal target. The proposed cooling procedures and the status of the beam cooling systems will be reviewed.

Slides TUZCH01 [4.493 MB]

WEACH01

Use of Bent-Crystal Deflectors to Steer Beam in U-70 Accelerator of IHEP - Status and Prospects

extraction, proton, ion, focusing

95

A.G. Afonin, V.I. Baranov, Y.A. Chesnokov, V.A. Maisheev, V. Terekhov, I.A. Yazynin
IHEP, Moscow Region, Russia

The report presents an overview the results of IHEP activity in the field of study and using bent crystals to steer high-energy proton and ion beam obtained during 2010-2012. The hardware installed to study crystal collimation and extraction is described. A new dedicated beam transfer line was arranged to study the performance of crystals. It has been shown that the crystal deflectors developed are capable of sustaining long-term operation to deliver high-energy extracted beams for fixed-target physics. Experience with practical applications of bent crystals are outlined. First results on the extraction 24.1 GeV/nucleon carbon ions are also presented.

WEBCH01

The Status of the SARAF Phase-I Linac

rfq, linac, proton, status

103

L. Weissman, Y. Ben Aliz, D. Berkovits, O. Dudovich, I. Eliyahu, I. Fishman, I.G. Gertz, A. Grin, A. Kreisler, G. Lempert, I. Mardor, A. Perry, E. Reinfeld, J. Rodnizki
Soreq NRC, Yavne, Israel

Phase I of the Soreq Applied Research Accelerator Facility - SARAF is under operation at the Soreq Nuclear Research Center. According to Phase I design specifications, SARAF superconducting linear RF accelerator should yield 2 mA protons and deuterons CW beams at energies up to 4 and 5 MeV, respectively. The status of Phase I main components is reported as well as the beam operation experience accumulated recently. The latter include acceleration of a 1 mA CW protons beam up to 3.5 MeV and 1 mA pulsed, duty cycle of few %, deuterons beam to up to 4.7 MeV. Further planned improvements in the current facility and plans for the future Phase II of the SARAF linac are discussed.

Slides WEBCH01 [7.617 MB]

WECCH01

Advances of Light-Ion Acceleration Program in the U70

ion, extraction, proton, light-ion

120

S.V. Ivanov
IHEP, Moscow Region, Russia

The paper reports on the recent progress in implementing the program of accelerating light ions in the Accelerator Complex U70 of IHEP-Protvino. The list of milestones achieved since RuPAC-2010 includes: (1) Proof-of-principle acceleration of Carbon-12 to the top available 34.1 GeV per nucleon (specific kinetic energy). (2) Circulation and slow extraction from U70 of the carbon beam at flat-bottom 455 MeV per nucleon. (3) The first ever successful extraction of Carbon nuclei at 24.1 GeV per nucleon to the existing beam transfer line #22 followed by feeding the FODS experimental facility with carbon beam for fixed-target high-energy nuclear physics start-up.

Slides WECCH01 [1.956 MB]

THBOR03

A Possibility of High-Energy Bremsstrahlung Dosimetry by Indium Activation

electron, simulation, radiation, photon

155

V.L. Uvarov, A.N. Dovbnya, V.V. Mytrochenko, V.I. Nikiforov, S.A. Perezhogin, Yu.V. Rogov, V.A. Shevchenko, I.N. Shlyakhov, B.I. Shramenko, A.Eh. Tenishev, A.V. Torgovkin
NSC/KIPT, Kharkov, Ukraine

Development of a number of promising photonuclear technologies is connected with the use of bremsstrahlung sources having end-point energy up to 100 MeV and average radiation power of tens kW. Commonly, such sources are created on the basis of high-current electron linacs. A possibility of bremsstrahlung dosimetry by means of activation of a target from indium of natural composition and absorbed dose determination through the specific activity of the 115mIn isomer is reported. Preliminary study of isomer photoactivation as well as the yield of reference reactions from simultaneously irradiated natural molybdenum was conducted by simulation technique. Joint measurement of the 115mIn, 90Mo, 99Mo activity and absorbed dose in the PMMA standard dosimeters were carried out at LU-10 and LU-40 linacs of NSC KIPT in the electron energy range 8…70 MeV. It was found that, within the range of study, the ratio of the 115mIn specific activity to absorbed dose in the PMMA slightly depends on the bremsstrahlung end-point energy.

Slides THBOR03 [0.553 MB]

FRXCH05

Irradiation Facilities and Complexes of INRP RFNC-VNIIEF

electron, radiation, neutron, cathode

176

N.V. Zavyalov, V.F. Basmanov, A.A. Devyatkin, V.S. Gordeev, S.A. Gornostay-Polsky, A.V. Grishin, A.V. Grunin, V.F. Kolesov, G.A. Myskov, S.T. Nazarenko, V.T. Punin, V.A. Savchenko, A.V. Telnov, S. Vorintsov
VNIIEF, Sarov (Nizhnii Gorod), Russia

The given review presents installations produced and applied at the Nuclear Radiation Research Institute (NRRI) of RFNC – VNIIEF to simulate under laboratory conditions the effects of nuclear explosion and space ionizing radiation on the special-purpose installations. Available is a brief description of the installation itself and characteristics of different-type electron accelerators and two irradiation complexes PUL'SAR and LIU-10M-GIR2 created on the base of high-current linear induction electron accelerators and pulsed nuclear reactors. There are considered electron accelerators GAMMA and BETA-8 that are being created at present.

FRXOR01

Technique and Instrumentation For Bunch Shape Measurements

electron, linac, electromagnetic-fields, ion

181

A. Feschenko
RAS/INR, Moscow, Russia

Bunch shape is one of the most important, interesting but difficult to observe characteristics of a beam in ion linear accelerators. Different possibilities of bunch shape measurements are considered but the emphasis is put on the Bunch Shape Monitors (BSM) developed in INR RAS. The operation of BSM is based on a coherent transformation of a longitudinal structure of a beam under study into a spatial distribution of a secondary electron beam through rf scanning. BSM characteristics found both by simulations and experimentally are presented; the ultimate parameters and the limitations are discussed. Modifications of BSM are described. Some experimental results of bunch observations are demonstrated.

Slides FRXOR01 [6.339 MB]

FRACH02

High-voltage Accelerators Intended to Produce Continuous and Pulse Neutron Fluxes

ion, neutron, ion-source, high-voltage

189

D.A. Solnyshkov, A.N. Kuzhlev, N.P. Mikulinas, A.V. Morozov, V.D. Shiltsev, G.G. Voronin
NIIEFA, St. Petersburg, Russia

Recently, in NIIEFA has been designed a series of high-voltage accelerators intended to produce continuous and pulse neutron fluxes with a yield from 10 to the tenth power to 10 to the twelwth power. The facilities designed can be used for operation in the continuous, microsecond and nanosecond modes, in any combination. In the pulse microsecond mode, ion currents of up to 100 mA with pulse lengths ranging from 2 up to 100 mks can be obtained on target. In the nanosecond mode, the accelerator allows an ion beam current of up to 5 mA with a pulse length in the range of 2-30 ns to be obtained.

Slides FRACH02 [2.507 MB]

FRBCH02

Project of Low-Energy Accelerator Driven Power Plant

neutron, proton, linac, DTL

224

A.G. Golovkina, D.A. Ovsyannikov
St. Petersburg State University, St. Petersburg, Russia
A.A. Bogdanov, I.V. Kudinovich, V.P. Struev
AN Krylov SRI, St. Petersburg, Russia
Y.A. Svistunov
NIIEFA, St. Petersburg, Russia

Project of low-energy accelerator driven nuclear power plant is considered. The accelerator driven system (ADS) with subcritical fast reactor, proton linac and fissile target is proposed. The main performance data of the ADS: proton beam energy 300-400 MeV, accelerator average current 5 mA, reactor thermal power 200 MW, core effective multiplication factor Keff=0.98. The principal design features of the power plant are also represented.

Slides FRBCH02 [2.663 MB]

FRBCH04

VITA Based Neutron Source - Status and Prospects

neutron, proton, ion, vacuum

230

S.Yu. Taskaev, V.I. Aleynik, A.G. Bashkirtsev, B.F. Bayanov, M.V. Kamkin, D.A. Kasatov, A.S. Kuznetsov, A.N. Makarov, I.M. Schudlo, I.N. Sorokin, M.A. Tiunov
BINP SB RAS, Novosibirsk, Russia

Funding: Ministry of Education and Science of Russian Federation (grant 16.518.11.7038)
At the BINP, a pilot epithermal neutron source is now in use. It is based on a compact Vacuum Insulation Tandem Accelerator and uses neutron generation from the reaction 7Li(p,n)7Be. Generation of neutrons was established and in vitro experiments were held. Most recent investigations on the facility are related with: i) studying the dark currents and breakdowns, ii) analyzing and suppressing the high intensity dark currents, iii) measuring the intensity and the spectra of the X-ray radiation, iv) optimization of the H-beam injection into the accelerator, v) placing and calibrating the new gas stripping target. The results of these studies are discussed in the present work. Investigations resulted in increasing of mean current of the proton beam in stable mode (from 0.1 – 0.7 to 1.5 - 2 mA). In the nearest future new experiments are planned, including in vitro tests, blistering investigation, spectrum and flux measuring for neutrons and gamma, calculating the dose absorbed by phantom. Different ways of providing additional stability to the accelerator, of increasing the current of the proton beam are discussed in this work, as well as the ways of creating the therapeutic beam and strategies of applying the facility for clinical use.

Slides FRBCH04 [2.526 MB]

FRBCH06

Project of the Radioisotope Facility RIC-80 (Radioactive Isotopes at Cyclotrone C-80) in PNPI

cyclotron, ion, proton, diagnostics

236

V.N. Panteleev, A.E. Barzakh, L.Kh. Batist, D.V. Fedorov, A.M. Filatova, K.A. Mezilev, P.L. Molkanov, F.V. Moroz, Yu.M. Volkov
PNPI, Gatchina, Leningrad District, Russia

It is well known presently that radionuclides produced with cyclotrons have very good nuclear-physical characteristics for use in medicine and a set of these nuclides is much wider than produced with the reactors. At PNPI a high current cyclotron C-80 with the energy of extracted proton beam of 40-80 MeV and the current up to 200 mkA is under construction. It is planned to start its operation at the end of 2012. One of the main goals of C-80 is production of a wide spectrum of medical radio- nuclides for diagnostics and therapy. At present time a project is worked out for the construction of radioisotope complex RIC-80 (Radio Isotopes at the cyclotron C-80) at the beam of C-80. In the presented submission the project of RIC-80 complex is discussed, which includes four target stations for the production of a wide set of radionuclides for medicine. The peculiarity of the proposed radioisotope facility is the use of the mass-separator with the target-ion source device as one of the target stations for on-line, or semi on-line production of a high purity separated radioisotopes. The possibility of production of different medical radionuclides, including relatively short-lived ones, is discussed as well.

Slides FRBCH06 [1.101 MB]

MOPPA012

Optimization of Laser Radiation Pressure Accelerator for Ion Generation

laser, proton, acceleration, ion

269

G. Dudnikova
ICT SB RAS, Novosibirsk, Russia
D. Gorpinchenko
ICM&MG SB RAS, Novosibirsk, Russia
C.-S. Liu, T.-C. Liu, R.Z. Sagdeev, X. Shao, J.J. Su
UMD, College Park, Maryland, USA

Compact laser-driven accelerators are an attractive alternative for monoenergetic proton and ion generation in conventional RF accelerator because the particle acceleration electric fields can reach tens GV/cm, which allows reduction of the system size. The scheme for generating quasimonoenergetic proton with Radiation Pressure Acceleration (RPA) has the potential of leading to table-top accelerators as sources for producing 50-250 MeV protons. Theoretical and computational studies of ion energy scaling of RPA are presented. 2D and 3D PIC simulations are performed to study limitations of energy gain due to Rayleigh-Taylor instability and how is the Rayleigh-Taylor instability suppressed by density fluctuations or inhomogeneities of targets. Energy transfer efficiencies and qualities of accelerated proton beams are discussed. Absolute dose, distal, penumbra of protons accelerated by PRA in a water phantom is calculated by Geant4 Monte Carlo simulations for particle therapy applications.

MOPPA015

Proposal of Laser Ion Beam Accelerator for Inertial Fusion

ion, laser, acceleration, heavy-ion

272

F. Scarlat, A.M. Scarisoreanu
INFLPR, Bucharest - Magurele, Romania

The inertial nuclear fusion with laser beams, relativistic electron beams, ion beams, micro-particle beams and superconducting projectiles has been and is investigated analytically and numerically calculated by various authors along years and nowadays. Starting from the record laser peak power of 1.25 PW and radiation peak intensity of 100 EW/square centimeter produced at LLNR using the chirped pulse amplification (CPA) laser technology as well as from ELI Nuclear Physics - laser system, 3 APPOLON 10 PW (150 J/ 15 fs) proposed to be realized, this paper presents the principle and the configuration of a compact ion accelerator with optical laser in an ultra-relativistic regime, for the inertial nuclear fusion. The accelerator operation principle is based on the interaction of a laser beam with plasma. Plasma is an ideal medium for the acceleration of particles because it may stand longitudinal electric fields of high values (several GV/m), approximately three orders of magnitude greater than the ones obtained with RF cavity (limited to 100 MV/m). Plasma allows the conversion of the electromagnetic field of the laser radiation into plasma waves which can capture and accelerate the charged particles. Moreover, the main system parameters of the accelerator are also presented.

MOPPA031

Residual Activity in Heavy-Ion Accelerators as Beam-Loss Limiting Factor

ion, heavy-ion, proton, accumulation

302

V. Chetvertkova
IAP, Frankfurt am Main, Germany
V. Chetvertkova, E. Mustafin, I. Strašík
GSI, Darmstadt, Germany

Residual activity is the main beam-loss limiting factor in high-energy proton accelerators. In order to ensure 'hands-on' maintenance the losses of proton beam should be kept below 1 W/m. It has been shown in our previous publications that the beam-loss criteria for heavy-ion machines may be established by rescaling the '1 W/m criterion' for different heavy ions. For protons the scaling factor is obviously 1. Scaling factors for other ions depend on the charge-mass number of the ion and on the beam energy. For example, for U ions with energy E = 200 MeV/u the scaling factor is 60, i.e. 60 W/m losses of U beam are tolerable from the 'hands-on' maintenance point of view, whereas for U ions with E=1 GeV/u the scaling factor is just 5. In the present paper we show that this scaling factor concept has natural limits of applicability. In the case of very low beam energies or in the case of estimates of long-term accumulated residual activity the tolerable beam-loss criteria cannot be obtained by simple rescaling '1 W/m criterion' with one single number.

TUPPB018

Simulation of Hollow Ion Beam Formation Line

simulation, cavity, ion, quadrupole

353

H.Y. Barminova, N.N. Alexeev, A. Golubev, T. Kulevoy, A. Sitnikov, T. Tretyakova
ITEP, Moscow, Russia

Heavy ion beams can be used for the matter extreme state generation*, and forming line must satisfy to certain strict requirements for beam brightness and focus position. In paper** system was proposed for hollow beam formation in order to generate laboratory plasma with energy deposition in cylindrical target. The system is based on the principle of the beam rotation by means of RF-cavities (so called "wobbler"). The similar system is proposed in ITEP***, where the basic part of line consists of two four-cell cavities and focusing quadrupole triplet. To calculate wobbler and magnetic triplet parameters two codes were used – "Transit", developed in ITEP, and G4Beamline, developed in Muons Inc. The beam was simulated for two kinds of particles – multicharged ions of Со and protons with equivalent energy. A comparative analysis of optical system parameter and beam parameter obtained in both simulations was performed. In condition of focus position restriction and spot geometry required aberrations were shown to be taken into account correctly.
* V. Fortov et al. NIM A 415, p.20 (1998).
** S. Minaev et al. NIM A 620, р.99 (2010).
*** S. Kolesnikov et al. High Pressure Research, vol.30, No 1, p.83 (2010).

WEPPC003

Beam Pulse Separation System of INR Linac

extraction, linac, vacuum, cavity

451

V.L. Serov, N.I. Brusova, A. Feschenko, O.V. Grekhov, Y.Z. Kalinin, V.N. Mikhailov, A.A. Stepanov
RAS/INR, Moscow, Russia
B.O. Bolshakov, A.V. Pozhensky
NIIEFA, St. Petersburg, Russia

The activity for beam intensity increasing and beam use efficiency improvement is under progress in INR linac. An important stage is the development and implementation of the Beam Pulse Separation System in the accelerator intermediate extraction area (160 MeV). The system is intended for distribution the beam pulses between Isotope Production Facility (up to 160 MeV) and the Experimental Facility located downstream of the accelerator exit. The report describes the upgrade of intermediate extraction area as well as the first results of experiments with the beam.

WEPPC005

Extreme Density Charge Electron Bunches

electron, linac, radiation, controls

456

S. Proskin, A. Kulago
MEPhI, Moscow, Russia

This paper presents untraditional approach for obtaining the DLWG limited bunch charge (LBC). The maximum energy of accelerated bunch is considered. As a result the bremsstrahlung maximum dose rate evaluation is obtained

WEPPC020

Quadrupole Harmonics Tuning by Nose Pieces

quadrupole, sextupole, insertion, octupole

489

T.V. Rybitskaya, E.S. Kazantseva, B.A. Skarbo, A.A. Starostenko, A.S. Tsyganov
BINP SB RAS, Novosibirsk, Russia

A part of quadrupole lenses for NSLS-II main ring were manufactured at Budker Institute of Nuclear Physics. Some types of lenses have nose pieces on poles. Nose pieces permits correcting magnetic field harmonics. Corrections of octupoles, sextupoles and allowed harmonics were realized. Also corrections of amplitude of dependence sextupole harmonic from current were realized for some lenses.

WEPPC024

Design, Simulation and Optimization of a Solenoid for ES-200 Electrostatic Accelerator

solenoid, simulation, focusing, proton

498

M. Asgarpour, E.E. Ebrahimibasabi, S.A.H. Feghhi, M. Khorsandi
sbu, Tehran, Iran
N. Khosravi
Zanjan University, Zanjan, Iran

Solenoids have important role in focusing the beam in drift tube of charge particle accelerators. In order to optimize the beam current in ES-200, an electrostatic proton accelerator at Shahid Beheshti University, design and simulation of a suitable solenoid has been performed. Using CST Studio package, simulation results has been validated in comparison with theoretical formula. According to the results we optimized the design using CST to have minimum beam current on drift tube.

WEPPC051

Proton Channel that Provides Simultaneous Independent Operation of a Treatment Room of Proton Therapy and Neutron Sources of the Experimental Complex INR RAS

proton, neutron, septum, controls

544

E.V. Ponomareva, S.V. Akulinichev, M.I. Grachev, L.V. Kravchuk
RAS/INR, Moscow, Russia
V.N. Zapolsky
IHEP, Moscow Region, Russia

The manufactured magneto-optic channel in the experimental complex of Moscow meson factory INR RAS, the system of splitting beams into a neutron source and the channel for medical application are specified. The system of independent adjustment of energy of protons for a medical channel is described.

WEPPC055

High Efficiency [F18]Fluoride Target System for Efremov Institute CC-18/9 Cyclotron

proton, cyclotron, ion, niobium

554

D. Sysoev
RRCRST, Pesochniy, Russia

Radionuclide fluoride-18 is produced by 18O(p,n)18F nuclear reaction in irradiating H2[18O] enriched water. The former fluoride-18 target system to this cyclotron, supplied by the cyclotron producer, The Efremov Institute, possesses insufficient productivity, not greater than 1 Ci of fluorine during 2 hour irradiation and also it doesn't allow achieving high radiochemical yields in producing radiopharmaceuticals due to contamination of irradiated water with metallic impurities from target body. To provide the radiopharmaceutical department of Russian Research Center for Radiology and Surgical Technologies with required amount of fluoride-18 radionuclide, the new target system has been designed and tested. This target system allows obtaining 5 Ci of fluoride-18 at beam current of 50 mkA during 2 hour irradiation and ensures minimum amount of metal contaminations and, hence, higher radiochemical yield (up to 90% decay corrected, F18-FDG).

WEPPC057

Calibration Testing of the Stripping Target of the Vacuum Insulated Tandem Accelerator

ion, proton, vacuum, high-voltage

560

A.S. Kuznetsov, V.I. Aleynik, I.M. Shchudlo, I.N. Sorokin, S.Yu. Taskaev, M.A. Tiunov
BINP SB RAS, Novosibirsk, Russia

Funding: The work supported by the Ministry of Education and Science of the Russian Federation.
The Vacuum Insulated Tandem Accelerator was developed in the Budker Institute of Nuclear Physics to produce epithermal neutrons for boron neutron capture therapy in the 7Li(p,g)7Be reaction. The parameters of the generated radiation allow us to carry out in vitro and in vivo investigations of BNCT*. In present moment the modernization of the facility elements is carrying out to meet the parameters required for clinical usage. Presented work is aimed on modernization of the gas stripping target that is used in the Vacuum Insulated Tandem Accelerator to recharge negative hydrogen ions into protons. The target was modernized to get higher efficiency of the beam transportation and to raise the current of the accelerated proton beam. The design of the modernized stripping target, the calculated data on gas flow rate and recharge effectiveness, also the results of experimental measurement of transported current depending on the gas flow rate are presented. The method of the target thickness determination and the procedure to adjust the regime of gas flow gate to get the required recharging effect were suggested.
* V. Aleynik, A. Burdakov, V. Davydenko, et al. BINP accelerator based epithermal neutron source. Applied Radiation and Isotopes, 69 (2011) 1635-1638.

WEPPC059

Electron Beam Image Visual Monitoring

electron, monitoring, linac, gun

563

V.N. Boriskin, I.A. Chertishchev, N.G. Reshetnyak, K. Romanovsky, V.A. Shevchenko, I.N. Shlyakhov, A.Eh. Tenishev, V.L. Uvarov, V. Zakutin
NSC/KIPT, Kharkov, Ukraine

The system for visual monitoring of the electron beam features was developed and implemented. This system is based on registration of optical radiation, which is generated under object-beam interaction. The system comprises image transferring channel, remote-controlled digital photo-camera, connected with PC by USB-interface as well as proper software. The images obtained give information on the beam density distribution over the surface of the object being irradiated. 100 KeV and 10 MeV electron beams was researched.

WEPPC060

Experimental Channel for Proton Beam with Energy 9 GeV

proton, quadrupole, vacuum, scattering

566

M.M. Kats
ITEP, Moscow, Russia

It was described one of possible version of experimental channel for proton beam with energy 9 GeV for ITEP. It based on proton beam after quick extraction, on existing experimental hall and on existing quadrupoles.

WEPPD044

Developing of the Synchronization System for Accelerating-Storage Facility ITEP-TWAC

controls, linac, heavy-ion, status

641

A.Y. Orlov, P.N. Alekseev, S.V. Barabin, D.A. Liakin
ITEP, Moscow, Russia

The renovation of the ITEP-TWAC synchronization system is a complex and challenging matter. This system must provide a full-scale timing signal set for all existing and foreseeing modes of operation of the two-ring accelerator facility. Complete design covers all levels of a design hierarchy like decision concerning the new system architecture or basic electronic modules development. In this article we present a description of most important parts of the synchronization system.

WEPPD059

AIRIX Measurement Chain Optimization For Electron Beam Dynamic and Dimensional Characteristics Analysis

electron, emittance, beam-transport, extraction

677

F. Poulet, V. Bernigaud, H. Dzitko, J.K. Kranzmann, C. Noël, O. Pierret
CEA, Pontfaverger-Moronvilliers, France
C. Chollet
CEA/DAM/DIF, Arpajon, France

AIRIX is a linear accelerator dedicated to X-ray flash radiography at CEA's hydrotest facility. It has been designed to generate an intense X-ray pulse using a 2 kA, 19 MeV and 60 ns electron beam. The electron beam transport in the accelerator is insured by the knowledge of the dynamic and dimensional characteristics of the beam created downstream the injector. These characteristics are assessed from a measurement chain, established by adapted optics and an intensified camera, aiming at observing the Cerenkov radiation produced during the interaction of electrons with a mylar target placed in the beam. This paper deals with the characterization, and comparison with the previous model, of a new intensified camera which was experimentally tested on AIRIX during an injector characterization campaign. This allowed defining profile and emittance beam characteristics. The obtained results are promising and revealed very interesting properties in particular in term of dynamic, temporal resolution, linearity and signal-to-noise ratio.