Paper | Title | Page |
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MOXMH04 |
Current Results of the 4th Generation Light Source USSR (Former SSRS4) Development | |
THPSC02 | use link to see paper's listing under its alternate paper code | |
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Funding: Project is supported by Ministry of Science and Education of Russian Federation, Agreements 14.616.21.0086 from 24.11.2017, ID RFMEFI61617X0086, 14.616.21.0088 from 24.11.2017, ID RFMEFI61617X0088 The new project of 4th generation synchrotron light source called Ultimate Source of Synchrotron Radiation (USSR) today is under development at NRC Kurchatov Institute. A number of Russian institutions also take part in this project: NRNU MEPhI, NRC "Kurchatov Institute" - ITEP and others. The European Synchrotron Radiation Facility (ESRF, Grenoble, France) is the main international collaborator of the project. It is proposed that USSR include both a storage ring and soft FEL, and one linac will be used for injection in the storage ring and as a driver for the FEL. The preliminary design of 6 GeV storage ring with transverse emittance of 50-70 pm*rad is done. The general concept of the top-up linac is proposed and the beam dynamics is simulated. The injection system and the vacuum systems are studied. Current results of the USSR R&D will be presented in this report. |
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Slides MOXMH04 [5.520 MB] | |
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WECAMH01 |
Ion Accelerators for Russian Mega-Science Projects | |
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The mega-science facilities based on large scale accelerators are a distinctive feature of modernity. Today Nuclotron-based Ion Collider fAcility (NICA) is a flagman Russian mega-science project under implementation. As well several other projects of scientific facilities such as Dubna Electron-Radioactive Ion Collider fAcility (DERICA), 4th generation Dubna neutron source "Neptun" and Based on ECR and Linear Accelerator multidisciplinary facility (BELA) are under discussion. The ion linear accelerators required for these projects have different parameters - some of them are operated in cw mode another in pulses one, some has intensity of microamperes another tens of milliamperes, some of them accelerates proton beam only meanwhile another one accelerates ions up to uranium. Anyway the general structure of them (ion source, RFQ, normal conducting DTL and superconducting cavities) and approaches of the ion accelerator development are similar. The current status and main problems of the ion accelerator development for the projects are presented and discussed. | ||
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Slides WECAMH01 [45.011 MB] | |
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WECAMH03 |
Normally Conducting Linacs in Russian Accelerator Projects | |
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At present, several accelerator projects are being developed in Russia, including ion linacs, such as NICA, DERICA, NEPTUN, BELA, etc. It is assumed that linacs will consist of two parts: normal conducting (NC) and superconducting (SC) linacs. The NC linacs are discussed in this article. Such linacs can differ each other significantly by mode of operation (pulsed or continuous), mass to charge ratio (1 - A/Z - 6.5), current magnitude (from 0.1 mA to 50 mA), etc. Anyway the layouts of these linacs have much in common. Different layouts of NC linacs are considered and the dynamics of particles in them for various projects is described. The requirements for the construction of NC linacs are substantiated, as well as the choice of the main parameters of the accelerating sections: operating frequency, maximum field strength, channel acceptance, focusing period structure, transition energy between accelerating sections, synchronous phase values, etc. The main design parameters of accelerating structures and their electrodynamic characteristics are given. The problems of technical realization for such linacs are discussed. | ||
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Slides WECAMH03 [15.640 MB] | |
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WECAMH06 | Progress of the NICA Complex Injection Facility Development | 75 |
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The new accelerator complex Nuclotron-based Ion Collider fAcility (NICA) is under development and construction at JINR, Dubna now. This complex is assumed to operate using two injectors: the Alvarez type linac LU-20 as injector of light ions, polarized protons and deuterons and a new linac HILAc - injector of heavy ions beams. The modernization of Alvarez-type linac began in 2016 by commissioning of new RFQ foreinjector, and in 2017 the new buncher in front of linac has been installed. The first Nuclotron run with new buncher was performed in January 2018 with beams of Xe+, Ar+ and Kr+. The beam produced by KRION-6T ion source were successfully injected and accelerated in the Nuclotron ring during the last run #55. Main results of the last Nuclotron run and plans for future development of NICA injection complex are presented in this paper. | ||
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Slides WECAMH06 [22.501 MB] | |
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-WECAMH06 | |
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WECBMH01 |
Superconducting Linacs Development for Current and Future Russian Accelerator Projects: Progress and Problems | |
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Superconducting linac is nowadays a standard technology to generate high-energy proton and ion beams especially for CW operation mode. Starting from SNS at ORNL * superconducting radio frequency (SRF) technology and superconducting (SC) linacs are changed from the exotic to classical technology of today. Many ion accelerator complexes developed in USA, EU, Japan, China, Korea and other countries for spallation neutron sources, production of radioactive ion beams and ADS (Accelerator Driven System) drivers use SC cavities. Currently, the mega-science accelerator project NICA ** (Nuclotron-based Ion Collider fAcility, JINr) as well as new proposed projects DERICA *** (Dubna Electron-Radioactive Ion Collider fAcility), NEPTUN, BELA ****(Based on ECR and Linear Accelerator multidisciplinary facility), etc. cannot be constructed without SRF technologies development in Russia. New ambitious program of SRF technology has been started few years ago by JINR in collaboration with MEPhI, NRC KI ITEP, BSU, PTI NANB, TRIUMF and GSI. Current progress in general conceptual design of new SC linacs, beam dynamics simulation of SC cavities and related issues will be discussed in this presentation.
* N. Holtkamp. Proc. of EPAC'2006, 29-33. ** G. Trubnikov, N. Agapov, V. Alexandrov et al., Proc. of IPAC'10, 693 (2010). *** http://aculina.jinr.ru/derica.php |
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Slides WECBMH01 [10.811 MB] | |
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TUPSA29 | Emittance Measurement on Krion-6T Ion Source by Pepper-Pot Method | 207 |
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The Krion-6T ion source is an electron string ion source (ESIS) of multicharged ions. It will be used as an ion source for the heavy ion linac at the NICA project, but has been tested on an existing injection facility - Alvarez-type linac LU-20 with new RFQ type fore-injector. The transverse emittance measurements were carried out on the initial part of channel (IPC) of the low energy beam transport (LEBT) channel, between the ion source and RFQ fore-injector by pepper-pot method. Beams of multicharged Argon and Xenon ions are observed. Measurements of the profile and emittance were performed over several energies for each type of ions. The results of the measurement are presented, and some points of emittance calculations are considered. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA29 | |
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TUPSA41 | Effect of Tin Ion Implantation on the Properties of Amorphous Ge2Sb2Te5 Thin Films | 230 |
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Funding: This study was supported by RFBR (project 17-03-00450). Alloys along the quasi-binary line between Sb2Te3 and GeTe with compositions (GeTe)m(Sb2Te3)n, in particular Ge2Sb2Te5, have been intensely studied and are used in the state-of-the-art PCM devices. However, properties of this thin film materials are not optimal and should be improved. In this work, we investigated the effect of tin ion implantation on the properties of amorphous Ge2Sb2Te5 thin films. The Sn ion implantation was done on Multipurpose Test Bench (MTB)* at NRC "Kurchatov Institute"-ITEP. The MTB consists of MEVVA type ion source, electrostatic focusing system, the system of current and beam profile measurements. The charge spectrum of the Sn beam was measured by the time-of-flight method, the beam profile as well as beam current were also measured. The beam's accelerating voltage was calculated by SRIM code in order to implant ions on the required film‘s depth. Tin ions were implanted into GST films at 40 kV accelerating voltage. Effect of Sn ion implantation (1 at. %) on the electrical properties of magnetron GST thin films was investigated. *S.Barabin, V.Batalin, A.Kozlov, T.Kulevoy, et.al., Multifunctional Test-Bench for Heavy Ion Sources, Proceedings DIPAC 2003, Mainz, Germany, p.158. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA41 | |
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TUPSA42 |
The Irradiation Technique at SIRMAT | |
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In the NRC "Kurchatov Institute" - ITEP the experimental research of new promising materials for nuclear technology by using the heavy ion beams is underway at the Stand of Irradiation Reactor MATerials (SIRMAT). The SIRMAT allows irradiation of the investigated samples by metal ion beams with energies up to 100*z keV, where z is the ion charge*. Local analysis of the irradiated samples is carried out by atomic-probe tomography. The work presents the main parameters of the SORMAT installation and the method of irradiation, as well as the results of experimental work for 2017-2018.
* S.L. Andrianov i dr. "Stend oblucheniya reaktornykh materialov". Izvestiya Vyschikh Uchebnykh Zavdeniy. T. 59, 9/3 p.225 |
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TUPSA51 |
New Output Channels for Nuclotron Accelerator | |
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In framework of Nuclotron-based Ion Collider fAcility (NICA) two new high energy channels are under development. At first channel is a test facility for investigation of the radiation resistance of the electronic components and equipments under irradiation by the heavy ion beams. In addition to activity at the Dubna Cyclotrons it will cover all requirements of Space industry. The second channel will be a test facility for biological experiments under the ion irradiation. The general layout of beam transport for both channels as well as the test-facilities for them are presented and discussed. | ||
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TUPSA52 | New experimental Channels at Nuclotron | 256 |
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In framework of NICA project two new experimental channels are under development. At first channel the radiation resistance of electronics and its' components under heavy ion irradiation will be tested. At second one the biological experiments under ion beam irradiation are planned. The structure of channels includes several dipoles, focusing quadrupoles and active scanning systems. The results of the channel simulation providing lossless transportation for different ions (from C to Au) with energy per nucleon from 0.25 GeV to 0.8 GeV are persented and discussed. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA52 | |
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TUPSA54 | Multichannel Injection Complex for the BELA Project | 259 |
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BELA (Based on ECR ion source Linear Accelerator) project is under development in NRC "Kurchatov Institute" - ITEP. Injection complex of the accelerator based on two ion sources is intended for different tasks and has a multichannel transport system. One of the tasks is double irradiation simulation experiments for reactor materials. Heavy ion beam and light ion beam from different ion sources and with different energy will irradiate a target simultaneously. Beam dynamics simulations were carried out for both iron beam Fe10+ and H1+ and He1+ beams. The paper includes injection complex layout and results of beam dynamic simulation in transport system as well as SIMS simulation of ions interaction with a target material. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA54 | |
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TUPSA61 | Development of the Ion Beams HIPR-1 Transport Channel for Ion Energy Losses Measurement in Plasma Target | 276 |
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The research of the processes occurring during interaction of heavy ions with plasma is carried out on the Heavy Ion RFQ HIP-1 (heavy Ion Prototype) in the ITEP. The HIPr-1 is a heavy ion RFQ linac which accelerates ion beams generated by either MEVVA ion source or duoplasmatron. It provides accelerated beam of ions from C+ to U4+ with energy of 101keV/n and several mA of current. Gas-discharge plasma target which was produced in ITEP is used for the measurement of ion energy losses in the ionized matter. The diaphragms at the entrance and exit of the plasma target provide the necessary pressure into the transport channel (which is 10-6 mbar), while the gas pressure in the target equals to several mbar. The design of the beam transport channel for performing experiments to determine the energy losses in plasma was developed based on the beam dynamics simulation. According to the obtained results the first successful tests on the HIPr-1 were held. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA61 | |
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WEPSB03 |
Beam Dynamics Simulation for LINAC-100 - Heavy Ion "Driver" for DERICA Project | |
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R&D on new Dubna Electron Radioactive Ion Collider fAcility (DERICA) implies the development of two heavy ion linear accelerators LINAC-100 and LINAC-30 each capable of accelerating ions within the wide range of mass/charge ratios A/Z. LINAC-100 will accelerate intensive CW primary stable isotope beams (from B11 to U238 with A/Z ~6) with beam currents up to 10 puA for radioactive isotope production using fragmentation method. As a concept for LINAC-100 modular system of independently phased SC cavities with NC CW RFQ section in injector part is proposed. In order to obtain maximum range of secondary ions acceleration up to 50 AMeV for U238 and 100 AMeV for "light" ions should be provided. Moreover, to enlarge flexibility in radioactive ion production conditions and expand using of LINAC-100 on applied physics purposes it is desirable to have three modes of accelerator operation: with maximum light ion energies of 50, 75 and 100 AMeV. In this paper the results of A/Z ~6 beam dynamics studies for modular part of LINAC-100 for CW operation mode will be presented. | ||
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Poster WEPSB03 [5.618 MB] | |
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WEPSB46 |
QWR and HWR SC Cavities R&D for New Superconducting Linac for JINR Nuclotron-NICA Injection | |
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A superconducting or partially superconducting linac is discussed as new injector for Nuclotron-NICA complex. New linac will accelerate protons up to 25 MeV (and up to 50 MeV at the second stage of the project) and light ions to ~7.5 MeV/u. The progress in R&D of QWR and HWR superconducting cavities is discussed in this report. The design of QWR and its normal conducting copper model is finished and PTI NANB is ready to manufacture of the prototype. Two designs of HWR were discussed: one with a cylindrical central conductor and another with the conical one. The electrodynamics design of HWR had been finished before now but it should be corrected taking into account some manufacture problems. Current results of the development of the RF coupler and the test cryostat will also present . | ||
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THPSC16 | Low-Level RF Control at Light Ions Injector for NICA | 437 |
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Light ion injector for future NICA project contain several resonator: buncher, RFQ, Alvarez-type linac LU-20, and possibly debuncher, that all work on same resonant frequency 145.2 MHz. Base frequency for all resonators in injector produced by LU-20 linac, worked in self-excited loop mode. Low-level RF control system of injector should capture RF signal from LU-20 linac within front of signal and generate output RF signals with same frequency on others resonators, with regulated phase difference between channels. Additionally, low-level RF control system should tune resonant frequencies of RFQ, buncher and debancher. Presented LLRF system was successively work within several years. LLRF controllers design, possibilities, and key stabilization techniques are presented. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-THPSC16 | |
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THPSC17 | Emittance Measurements of Polarized Ion Beams Using a Pepper-Pot Emittance Meter | 440 |
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An Source of Polarized Ions (SPI), developed at JINR, produces pulsed beams of polarized protons and deuterons for NUCLOTRON accelerator. The accelerated polarized ion beams will be injected into future NICA collider. In order to reconcile requirements of a RFQ fore-injector of the Alvarez type linear accelerator LU-20, it is necessary to measure a transverse emittance of the ion beams produced by the SPI. The emittance of beams of polarized deuterons and polarized protons was measured by the pepper-pot method. The results of measurements of the emittance and profile of the polarized ion beams are presented. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-THPSC17 | |
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THPSC18 | Pepper-Pot Emittance Metasurements | 443 |
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The pepper-pot emittance measuring device was developed to determine the parameters of the ion source beam. It includes a "pepper-pot" mask, a scintillation screen, a charge-coupled device (CCD) recorder, a personal computer (PC), software for data processing, calculation of beam profile and emittance. Measurements of emittance by pepper-pot method have been successfully carried out on several ion sources, at ITEP and JINR. The pepper-pot measurement method, the emittance meter design, and the emittance calculation technics are presented. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-THPSC18 | |
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THPSC47 | Characteristics of Laser-Plasma Ion Source Based on a CO2-Laser for Heavy Ion Accelerators at ITEP | 498 |
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The design of laser-plasma heavy ion source is described. This ions source is supposed to operate at I-3 and I-4 accelerators at ITEP. Characteristics of ion component of plasma produced by pulses of the CO2 laser were studied, when irradiating a solid carbon target at power density of 1011-1012 W/cm2. Time-of-flight technique using a high-resolution electrostatic energy analyzer was applied to explore charge state and energy distribution as well as partial currents of carbon and tungsten ions. Some results of investigation of influence of cavern formation on charge state of generated ions are presented. This work is of considerable interest in a wide area of applications of accelerated particle beams, including fundamental studies of state of matter in particle colliders (NICA project at JINR), radiation damage simulation and hadron therapy for cancer treatment. The goal of this work is to investigate characteristics of ions in expanding laser plasma and find optimal conditions of target illumination and ion beam extraction. This research is valuable for adapting an intensive beam from laser ion source to the accelerator, improving acceleration efficency and rising the amount of accelerated particles. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-THPSC47 | |
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THPSC20 | Some Development Aspects of Control and Diagnostic Systems for Fourth-Generation Russian Synchrotron Radiation Source | 450 |
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Funding: The work is carried out under the support of Russian Ministry of Education and Science contract 14.616.21.0088 at 24/11/2017 (RFMEFI61617X0088) A fourth-generation synchrotron radiation source assumed as a powerful instrument of mega science program in Russia. Recently divisions of Kurchatov institute supports this project by detailed study of parameters of beam diagnostics and a supervisor control system. The actual status of this study is presented. |
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Poster THPSC20 [1.184 MB] | |
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-THPSC20 | |
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