IPAC2011 - Classification: 04 Hadron Accelerators / A04 Circular Accelerators

Paper	Title	Page
WEPC075	ITEP-TWAC Progress Report	2193
	N.N. Alexeev, P.N. Alekseev, V. Andreev, A. Balabaev, V.I. Nikolaev, A.S. Ryabtsev, Yu.A. Satov, V.A. Schegolev, B.Y. Sharkov, A. Shumshurov, V.P. Zavodov ITEP, Moscow, Russia
	The program of the ITEP-TWAC Facility upgrade for next three years has been approved last year in the frame of National Research Center Kurchatov Institute taking up ITEP in accordance with government decision. It includes expanding of multimode using proton and heavy ion beams in different applications on a base of new accelerator technologies development. The laser ion source advantage of high temperature plasma generation has to be transformed to high current and high charge state ion beam of Z/A up to 0.4 for elements with A ~ 60 to be effectively stacked in the accumulator ring with multiple charge exchange injection technique. The new high current heavy ion RFQ section is in progress for the beam test. Accelerating system of accumulator ring U-10 is modified to increase compression voltage for stacked beam by factor of four. Design of proton injection and beam slow extraction for UK ring is performed for its utilizing as self-depending synchrotron in medical application and for imitation of cosmic radiation. The machine status analysis and current results of activities aiming at both subsequent improvement of beam parameters and expanding beam applications are presented.

WEPS001	A New Lattice for the Beta-beam Decay Ring to Reduce the Head Tail Effects	2478
	A. Chancé, J. Payet CEA/DSM/IRFU, France C. Hansen CERN, Geneva, Switzerland
	Funding: I acknowledge the financial support of the European Community under the European Commission Framework Programme 7 Design Study: EUROnu, Project Number 212372. The beta-beam concept relies on the production, by beta decay of radioactive ions of a very high flux, of an electron neutrino and anti-neutrino beam towards a distant detector. In this aim, the radioactive isotopes are stored in a long racetrack-shaped ring, called the decay ring, where they orbit until they decay or are lost. The intensities to store in the decay ring to obtain the required neutrino fluxes are very high (several amperes in average). Therefore, collective effects occur. Among them, the head tail effect, caused by transversal resonance impedance, is one of the main issues: the beam was shown to be unstable with the previous decay ring lattice. The transition gamma was reduced to mitigate this problem. For this purpose the lattice was changed by removing the injection from the arc to put it in a chicane which is added in one of the long straight sections. After presenting the limitation due to head tail effects, we will present the modification in the lattice and their impact on the dynamic aperture in the decay ring. Then the improvement on the beta-beam performance with respect to the lower transition gamma will be shown.

WEPS002	Limitations in Mitigating Collective Effects in the Beta-Beam Decay Ring by the Use of Octupoles	2481
	C. Hansen CERN, Geneva, Switzerland E. Benedetto National Technical University of Athens, Zografou, Greece A. Chancé, J. Payet CEA/DSM/IRFU, France
	Funding: I acknowledge the financial support of the European Community under the European Commission Framework Programme 7 Design Study: EUROnu, Project Number 212372. The beta-beam concept relies on the production, by beta decay of radioactive ions of a very high flux, of an electron neutrino and anti-neutrino beam towards a distant detector. After production and acceleration in an accelerator complex consisting of a rapid cycling synchrotron, the CERN PS and the CERN SPS, the radioactive isotopes are injected into a long racetrack-shaped ring, called the decay ring, where they orbit until they decay or are lost. The required intensities to store in the decay ring to reach the aimed neutrino fluxes are very high. Among the collective effects, the head tail effect, caused by transversal resonance impedance, is one of the main issues: the beam was shown to be unstable with the previous decay ring lattice. The lattice was changed to handle this problem; e.g. octupoles were included to increase the stability limit with an amplitude detuning. We here report on the improvement on the beta-beam performance with respect to amplitude detuning in the decay ring and discuss other mitigation attempts.

WEPS003	SIS18 – Intensity Record with Intermediate Charge State Heavy Ions	2484
	P.J. Spiller GSI, Darmstadt, Germany L.H.J. Bozyk FIAS, Frankfurt am Main, Germany P. Puppel HIC for FAIR, Frankfurt am Main, Germany
	Funding: Project partly funded by the European Community DIRAC-PHASE-1 / Contract number: 515876 In order to reach the desired intensities of heavy ion beams for the experiments at FAIR, SIS18 and SIS100 have to be operated with intermediate charge states. Operation with intermediate charge state heavy ions at the intensity level of about 10¹¹ ions per cycle has never been demonstrated elsewhere and requires a dedicated upgrade program for SIS18 and a dedicated machine design for SIS100. The specific problems coming along with the intermediate charge state operation in terms of charge exchange processes at collisions with residual gas atoms, pressure bumps by ion induced desorption and corresponding beam loss appears far below the typical space charge limits. Thus, new design concepts and new technical equipment addressing these issues are developed and realized with highest priority. The upgrade program of SIS18 addressing the goal of minimum ionization beam loss and stable residual gas pressure conditions has been defined in 2005. A major part of this upgrade program has been successfully realized, with the result of a world record in accelerated number of intermediate charge state heavy ions.

WEPS004	Confinement, Accumulation and Diagnostic of Low Energy Ion Beams in Toroidal Fields	2487
	M. Droba, A. Ates, O. Meusel, H. Niebuhr, U. Ratzinger, J.F. Wagner IAP, Frankfurt am Main, Germany
	An optimized design of a stellarator-type storage ring for low energy ion beams was numerically investigated. The magnetic field variation along the circumference and therefore magnetic heating is suppressed by using simple circular correction coils. Particle-in-Cell (PIC) simulations in a magnetic flux coordinate system show the ability of high current ion beam accumulation in such a configuration with unique features for clockwise and anticlockwise moving beams. Additionally scaled down experiments with two 30 degree room temperature toroidal segments were performed to demonstrate toroidal transport and to develop optical beam diagnostics. Properties of multi-component beams, redistribution of transversal momenta in the non-adiabatic part of the experimental configuration and investigation of strongly confined beam induced electron clouds will be addressed.

WEPS005	Investigation of Intrabeam Scattering in the Heavy Ion Storage Ring TSR	2490
	S.T. Artikova, M. Grieser, J. Ullrich MPI-K, Heidelberg, Germany
	Intrabeam scattering (IBS) is a multiple scattering effect between stored beam particles. It leads to diffusion in all three spatial dimensions and thus, causes an expansion of the whole beam. IBS plays an important role in the equilibrium diameter of a low-velocity, electron-cooled ion beam. IBS effects for coasting and bunched 12C⁶⁺ ion beams at an energy of 73.3 MeV were studied using the TSR heavy ion cooler storage ring. Experimental results of the IBS rates are presented.

WEPS006	CNAO RF System: Hardware Description.	2493
	L. Falbo, G. Burato CNAO Foundation, Milan, Italy M.M. Paoluzzi, G. Primadei CERN, Geneva, Switzerland
	CNAO is the Italian National Center of Oncological Hadrontherapy in Pavia. Proton beams are accelerated in the synchrotron and extracted in the energy range 60 to 250 MeV/u and carbon ion beams in the energy range 120 to 400 MeV/u. Trapping at the injection energy of 7 MeV/u and acceleration up to the extraction energy are done by an RF cavity which covers the needed wide range of frequency (0.4 to 3 MHz) and voltage (25 V to 5 kV) thanks to the use of a Vitrovac amorphous alloy. RF Gymnastics, including phase jumps to increase the momentum spread and empty bucket channelling, is requested and has been performed. A description of the hardware characteristics of the CNAO RF system and of its performance in terms of dynamic and static behaviour are reported in this paper.

WEPS007	CNAO Synchrotron Commissioning	2496
	C. Priano, G. Balbinot, G. Bazzano, J. Bosser, E. Bressi, M. Caldara, H. Caracciolo, L. Falbo, A. Parravicini, M. Pullia, C. Viviani CNAO Foundation, Milan, Italy C. Biscari, A. Ghigo INFN/LNF, Frascati (Roma), Italy
	The CNAO (National Center for Oncological Hadrontherapy), located in Pavia, is the first Italian center for deep hadrontherapy with proton and carbon ion beams. The CNAO synchrotron initial commissioning has been carried out using proton beams in the full range of energies: 60 to 250 MeV/u. The first foreseen treatments will need energies between 120 and 170 MeV/u. The nominal proton currents have been reached. The energy scaling of the synchrotron systems and parameters leads to an extracted energy that matches the measured particle range better than 0.1 mm, fitting the treatment requirements, with repeatable beam size and beam current in the treatment room at all investigated energies. A summary of the main results of the synchrotron commissioning is presented.

WEPS008	Operation Status and Future Plan of J-PARC Main Ring	2499
	T. Koseki KEK, Ibaraki, Japan
	The J-PARC Main Ring (MR) has started users operation since 2009. The MR has two beam extraction systems. One is a fast extraction (FX) system for beam delivery to the neutrino beam line of the Tokai-to-Kamioka (T2K) experiment, and the other is a slow extraction (SX) system for beam delivery to the hadron experimental hall. For the T2K experiment, the maximum beam power of 145 kW is delivered continuously. For users of the hadron experimental hall, the beam power of 3 kW is delivered with extraction efficiency of 99.5%. In this paper, status of the high power beam operation of the MR is presented. Future prospect for increasing beam intensity is also discussed.

WEPS010	Acceleration of High Intensity Proton Beams in the J-PARC Synchrotrons	2502
	M. Yoshii KEK/JAEA, Ibaraki-Ken, Japan E. Ezura, K. Hara, K. Hasegawa, C. Ohmori, K. Takata, M. Toda KEK, Ibaraki, Japan T. Minamikawa University of Fukui, Fukui, Japan M. Nomura, A. Schnase, T. Shimada, F. Tamura, M. Yamamoto JAEA/J-PARC, Tokai-mura, Japan
	The J-PARC accelerator complex consists of the linac, the 3GeV rapid cycling synchrotron (RCS) and the 50GeV main synchrotron (MR). These synchrotrons are the first MW-class proton accelerators which employ the high electric field gradient magnetic alloy (MA) loaded RF cavities. The beam commissioning was started in October 2007 for RCS and in May 2008 for MR. High intensity beam operation studies and user runs have been performed, while carefully controlling and minimizing the beam loss. The cycle to cycle beam operation is reproducible and quite stable, because of the stable linac beam energy and the reproducible bending field in both synchrotrons. The MA loaded RF systems and the full digital LLRF also guarantee the stable longitudinal particle motion and precise beam transfer synchronization from RCS to the MLF user facility as well as to the MR. A high intensity proton beam of 2.5·10¹³ ppp is accelerated in RCS. And in MR, a beam intensity up to ~100 Tera ppp was obtained.　We summarize the RF systems and the longitudinal parameters in both rings.

WEPS011	Application of Orbit Response Matrix Method at CSNS/RCS	2505
	Y.W. An, S. Wang IHEP Beijing, Beijing, People's Republic of China
	The China Spallation Neutron Source(CSNS) consists of a low energy linac and a high energy Rapid Cycling Synchrotron(RCS). RCS accumulates 80MeV beam and accelerates to 1.6GeV with 25Hz repetition rate and the average extraction beam power is 100kW. For controlling beam loss, the closed orbit should be adjusted as flexible as possible. The orbit response matrix(ORM) method is applied to correct the closed orbit distortion in RCS. The simulation study was made by using the code Linear Optics from Closed Orbit(LOCO) for CSNS/RCS, and the results of simulation study are presented.

WEPS013	Results of the Nuclotron Upgrade Program	2508
	A.V. Eliseev, N.N. Agapov, A.V. Alfeev, V. Andreev, V. Batin, D.E. Donets, E.D. Donets, E.E. Donets, E.V. Gorbachev, A. Govorov, V. Karpinsky, V.D. Kekelidze, H.G. Khodzhibagiyan, A. Kirichenko, A.D. Kovalenko, O.S. Kozlov, N.I. Lebedev, I.N. Meshkov, V.A. Mikhailov, V. Monchinsky, S. Romanov, T.V. Rukoyatkina, A.O. Sidorin, I. Slepnev, V. Slepnev, A.V. Smirnov, A. Sorin, G.V. Trubnikov, B. Vasilishin JINR, Dubna, Moscow Region, Russia O.I. Brovko, A.V. Butenko, N.V. Semin, V. Volkov JINR/VBLHEP, Moscow, Russia
	The Nuclotron upgrade – the Nuclotron-M project, which had been started in 2007, involved the modernization of almost all of the accelerator systems, using beam time during seven runs devoted to testing newly installed equipment. Following the project goals, in March 2010 Xe ions were accelerated to about 1.5 GeV/u. In December 2010, the stable and safe operation of the magnetic system was achieved with a main field of 2 T. The successful completion of the project paves the way for further development of the Nuclotron-based Ion Collider fAcility (NICA).

WEPS014	RF Systems and Bunch Formation at NICA	2511
	A.V. Eliseev, I.N. Meshkov, A.O. Sidorin, G.V. Trubnikov JINR, Dubna, Moscow Region, Russia O.I. Brovko JINR/VBLHEP, Moscow, Russia G.Y. Kurkin, V.M. Petrov BINP SB RAS, Novosibirsk, Russia
	The NICA facility being constructed at JINR will consists of two synchrotrons (Booster and Nuclotron) and collider working at constant magnetic field. To reach required luminosity level the collider rings will be operated with short ion bunches. The bunch formation in the collider as well as longitudinal dynamics in all the rings is described. The parameters and preliminary design of RF systems are presented.

WEPS017	Plans for the Upgrade of the LHC Injectors	2517
	R. Garoby, S.S. Gilardoni, B. Goddard, K. Hanke, M. Meddahi, M. Vretenar CERN, Geneva, Switzerland
	The LHC Injectors Upgrade (LIU) project has been launched at the end of 2010 to prepare the CERN accelerator complex for reliably providing beam with the challenging characteristics required by the high luminosity LHC until at least 2030. Based on the work already started on Linac4, PS Booster, PS and SPS, the LIU project coordinates studies and implementation, and interfaces with the High Luminosity LHC (HL-LHC) project which looks after the upgrade of the LHC itself, expected by the end of the present decade. The anticipated beam characteristics are described, as well as the status of the studies and the solutions envisaged for improving the injector performances.

WEPS018	The Proposed CERN Proton-Synchrotron Upgrade Program	2520
	S.S. Gilardoni, S. Bart Pedersen, W. Bartmann, S. Bartolome, O.E. Berrig, C. Bertone, A. Blas, D. Bodart, J. Borburgh, R.J. Brown, A.C. Butterworth, M.C.L. Buzio, C. Carli, P. Chiggiato, H. Damerau, T. Dobers, R. Folch, R. Garoby, B. Goddard, M. Gourber-Pace, S. Hancock, M. Hourican, P. Le Roux, L.A. Lopez Hernandez, A. Masi, G. Metral, Y. Muttoni, E. Métral, M. Nonis, J. Pierlot, S. Pittet, C. Rossi, I. Ruehl, G. Rumolo, L. Sermeus, R.R. Steerenberg, M. Widorski CERN, Geneva, Switzerland
	In the framework of the High-Luminosity LHC project, the CERN Proton Synchrotron would require a major upgrade to match the future beam parameters requested as pre-injector of the collider. The different beam dynamics issues, from space-charge limitations to longitudinal instabilities are discussed, as well as the proposed technical solutions to overcome them, covering the increase of the injection energy to RF related improvements.

WEPS019	Study of a Rapid Cycling Synchrotron to Replace the CERN PS Booster	2523
	K. Hanke, O. Aberle, M. E. Angoletta, B. Balhan, W. Bartmann, M. Benedikt, J. Borburgh, D. Bozzini, C. Carli, P. Dahlen, T. Dobers, M. Fitterer, R. Garoby, S.S. Gilardoni, B. Goddard, J. Hansen, T. Hermanns, M. Hourican, S. Jensen, A. Kosmicki, L.A. Lopez Hernandez, M. Meddahi, B. Mikulec, A. Newborough, M. Nonis, S. Olek, M.M. Paoluzzi, S. Pittet, B. Puccio, V. Raginel, I. Ruehl, H.O. Schönauer, L. Sermeus, R.R. Steerenberg, J. Tan, J. Tückmantel, M. Vretenar, M. Widorski CERN, Geneva, Switzerland
	CERN’s proton injector chain is undergoing a massive consolidation and upgrade program in order to deliver beams meeting the needs of the LHC Luminosity Upgrade. As an alternative to the upgrade of the existing Proton Synchrotron Booster (PSB), the construction of a Rapid Cycling Synchrotron (RCS) has been studied. This machine would replace the PSB and deliver beams to the LHC as well as to CERN’s rich fixed-target physics program. This paper summarizes the outcome of the feasibility study along with a tentative RCS design.

WEPS020	Study of an Energy Upgrade of the CERN PS Booster	2526
	K. Hanke, O. Aberle, M. E. Angoletta, W. Bartmann, S. Bartolome, C. Bertone, A. Blas, J. Borburgh, D. Bozzini, A.C. Butterworth, C. Carli, P. Dahlen, T. Dobers, A. Findlay, R. Folch, N. Gilbert, J. Hansen, T. Hermanns, S. Jensen, P. Le Roux, L.A. Lopez Hernandez, E. Mahner, A. Masi, B. Mikulec, Y. Muttoni, A. Newborough, D. Nisbet, M. Nonis, S. Olek, M.M. Paoluzzi, S. Pittet, B. Puccio, V. Raginel, I. Ruehl, J. Tan, B. Todd, W.J.M. Weterings, M. Widorski CERN, Geneva, Switzerland
	CERN’s LHC injector chain will have to deliver beams with ultimate brilliance as the LHC is heading for increased luminosity in the coming years. In order to overcome bottlenecks in the injector chain, an increase of the beam transfer energy from the CERN Proton Synchrotron Booster (PSB) to the Proton Synchrotron (PS) has been investigated as a possible upgrade scenario. This paper gives an overview of the technical solutions and summarizes the conclusions of the feasibility study.

WEPS022	Ions for LHC: Performance of the Injector Chain	2529
	D. Manglunki, M. E. Angoletta, P. Baudrenghien, G. Bellodi, A. Blas, T. Bohl, C. Carli, E. Carlier, S. Cettour Cave, M. Chanel, K. Cornelis, H. Damerau, A. Findlay, S.S. Gilardoni, S. Hancock, J.M. Jowett, D. Kuchler, S. Maury, E. Métral, S. Pasinelli, M. Schokker, G. Tranquille, B. Vandorpe, U. Wehrle, J. Wenninger CERN, Geneva, Switzerland
	The first LHC Pb ion run took place at 1.38 A TeV/c per beam in autumn 2010. After a short period of running-in, the injector chain was able to fill the collider with up to 137 bunches per ring, with an intensity of 10⁸ Pb ions/bunch, about 50% higher than the design value. This yielded a luminosity of 3E25 Hz/cm², allowing the experiments to accumulate just under 10 inverse microbarn each during the four week run. We review the performance of the individual links of the injector chain, and address the main issues limiting the LHC luminosity, in view of reaching 10²6 Hz/cm² in 2011, and substantially beyond when the LHC energy increases after the long shutdown in 2013-14.

WEPS023	A Possible RF System for CERN RCS	2532
	M.M. Paoluzzi CERN, Geneva, Switzerland
	As part of the LHC Injectors Upgrade (LIU) program at CERN the possibility of replacing the PSB with a new Rapid Cycling Synchrotron (RCS) is considered. The requirements in terms of accelerating voltage (60 kV), frequency range (1.7 MHz – 9.5 MHz) and available space (4 m) make the RF system development quite challenging. The improved loss characteristics of the new FINEMET® type (FT3L) combined with a filter-like topology, allows achieving all the requirements. This paper describes the design of such a RF system.

WEPS024	Beta Beams: An Accelerator-based Facility to Explore Neutrino Oscillation Physics	2535
	E.H.M. Wildner, E. Benedetto, T. De Melo Mendonca, C. Hansen, T. Stora CERN, Geneva, Switzerland D. Berkovits Soreq NRC, Yavne, Israel G. Burt, A.C. Dexter Cockcroft Institute, Lancaster University, Lancaster, United Kingdom A. Chancé, J. Payet CEA/DSM/IRFU, France M. Cinausero, G. De Angelis, F. Gramegna, T. Marchi, G.P. Prete INFN/LNL, Legnaro (PD), Italy G. Collazuol Univ. degli Studi di Padova, Padova, Italy F. Debray, C. Trophime GHMFL, Grenoble, France T. Delbar, T. Keutgen, M. Loiselet, S. Mitrofanov UCL, Louvain-la-Neuve, Belgium G. Di Rosa INFN-Napoli, Napoli, Italy M. Hass, T. Hirsch Weizmann Institute of Science, Physics, Rehovot, Israel I. Izotov, S. Razin, V. Skalyga, V. Zorin IAP/RAS, Nizhny Novgorod, Russia L.V. Kravchuk RAS/INR, Moscow, Russia T. Lamy, L. Latrasse, M. Marie-Jeanne, T. Thuillier LPSC, Grenoble, France M. Mezzetto INFN- Sez. di Padova, Padova, Italy A.V. Sidorov BINP SB RAS, Protvino, Moscow Region, Russia P. Sortais ISN, Grenoble, France A. Stahl RWTH, Aachen, Germany
	Funding: This contribution is a project funded by European Community under the European Commission Framework Programme 7 Design Study: EUROnu, Project Number 212372. The recent discovery of neutrino oscillations, has implications for the Standard Model of particle physics (SM). Knowing the contribution of neutrinos to the SM, needs precise measurements of the parameters governing the neutrino oscillations. The EUROν Design Study will review three facilities (the so-called Super-Beams, Beta Beams and Neutrino Factories) and perform a cost assessment that, coupled with the physics performance, will give means to the European research authorities to make a decision on future European neutrino oscillation facility. "Beta Beams" produce collimated pure electron (anti-)neutrino by accelerating beta active ions to high energies and having them decay in a storage ring. EUROν Beta Beams are based on CERN’s infrastructure and existing machines. Using existing machines is an advantage for the cost evaluation, however, this choice is also constraining the Beta Beams. Recent work to make the Beta Beam facility a solid option will be described: production of Beta Beam isotopes, the 60 GHz pulsed ECR source development, integration into the LHC-upgrades, ensure the high intensity ion beam stability, and optimizations to get high neutrino fluxes.

WEPS025	First Beam Experiments at ISIS with a Low Output-impedance Second Harmonic Cavity	2538
	Y. Irie, S. Fukumoto, K. Muto, H. Nakanishi, T. Oki, A. Takagi KEK, Ibaraki, Japan D. Bayley, I.S.K. Gardner, R.J. Mathieson, A. Seville, J.W.G. Thomason STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom J.C. Dooling, D. Horan, R. Kustom ANL, Argonne, USA M.E. Middendorf ORNL RAD, Oak Ridge, Tennessee, USA
	A Low Output-Impedance (LOI) rf drive, which may be suitable for future high intensity accelerator applications, has been developed jointly by ANL, ISIS and KEK for an ISIS synchrotron second harmonic cavity. The cavity is ferrite-loaded, and is driven by a high-power triode (240 kW plate dissipation) with a plate-to-grid feedback circuit. The impedance is designed to be 20~30 ohms over a 2-6 MHz frequency range. Beam induced voltage has been measured with the ISIS beam, and compared with that calculated from the designed output impedance.

WEPS028	Lattice Design of a Rapid Cycling Medical Synchrotron for Carbon/Proton Therapy	2541
	D. Trbojevic, J.G. Alessi, M. Blaskiewicz, C. Cullen, H. Hahn, D.I. Lowenstein, I. Marneris, W. Meng, J.-L. Mi, C. Pai, D. Raparia, A. Rusek, J. Sandberg, N. Tsoupas, J.E. Tuozzolo, A. Zaltsman, W. Zhang BNL, Upton, Long Island, New York, USA N.M. Cook Stony Brook University, Stony Brook, USA J.P. Lidestri HHMI, New York, USA M. Okamura RBRC, Upton, Long Island, New York, USA S. Peggs ESS, Lund, Sweden
	Funding: Work supported by Cooperative Research and Development Agreement (CRADA), No. BNL-C-10^-03 between the Brookhaven National Laboratory and Best Medical International, Inc. We present a design of the ion Rapid Cycling Medical Synchrotron (iRCMS) for carbon/proton cancer therapy facility. The facility design, produced at Brookhaven National Accelerator (BNL) at the Collider Accelerator Division (CAD) for the BEST Medical International, Inc., will be able to treat the cancer patients with carbon, lighter ions and protons. The low energy part accelerates ions and protons to the kinetic energy of 8 MeV. It consists of two ion sources (one of fully stripped carbon ions and one for protons), a Radio-Frequency Quadrupole (RFQ) and linac. The 8 GeV beam is injected into a fast cycling synchrotron (iRCMS). The lattice design is a racetrack, with zero dispersion two parallel straight sections. There are 24 combined function magnets in the two arcs with a radius of ~5.6 meters with maximum magnetic field of less than 1.3 T. The acceleration is performed in 30 Hz up to the required energy for the cancer tumor treatment assuming the spot scanning technique. The maximum energy for carbon ions is 400 MeV. Ions are extracted in a single turn and fed to different beam lines for patient treatment.

Paper

Title

Page

ITEP-TWAC Progress Report

2193

N.N. Alexeev, P.N. Alekseev, V. Andreev, A. Balabaev, V.I. Nikolaev, A.S. Ryabtsev, Yu.A. Satov, V.A. Schegolev, B.Y. Sharkov, A. Shumshurov, V.P. Zavodov
ITEP, Moscow, Russia

The program of the ITEP-TWAC Facility upgrade for next three years has been approved last year in the frame of National Research Center Kurchatov Institute taking up ITEP in accordance with government decision. It includes expanding of multimode using proton and heavy ion beams in different applications on a base of new accelerator technologies development. The laser ion source advantage of high temperature plasma generation has to be transformed to high current and high charge state ion beam of Z/A up to 0.4 for elements with A ~ 60 to be effectively stacked in the accumulator ring with multiple charge exchange injection technique. The new high current heavy ion RFQ section is in progress for the beam test. Accelerating system of accumulator ring U-10 is modified to increase compression voltage for stacked beam by factor of four. Design of proton injection and beam slow extraction for UK ring is performed for its utilizing as self-depending synchrotron in medical application and for imitation of cosmic radiation. The machine status analysis and current results of activities aiming at both subsequent improvement of beam parameters and expanding beam applications are presented.

WEPS001

A New Lattice for the Beta-beam Decay Ring to Reduce the Head Tail Effects

2478

A. Chancé, J. Payet
CEA/DSM/IRFU, France
C. Hansen
CERN, Geneva, Switzerland

Funding: I acknowledge the financial support of the European Community under the European Commission Framework Programme 7 Design Study: EUROnu, Project Number 212372.
The beta-beam concept relies on the production, by beta decay of radioactive ions of a very high flux, of an electron neutrino and anti-neutrino beam towards a distant detector. In this aim, the radioactive isotopes are stored in a long racetrack-shaped ring, called the decay ring, where they orbit until they decay or are lost. The intensities to store in the decay ring to obtain the required neutrino fluxes are very high (several amperes in average). Therefore, collective effects occur. Among them, the head tail effect, caused by transversal resonance impedance, is one of the main issues: the beam was shown to be unstable with the previous decay ring lattice. The transition gamma was reduced to mitigate this problem. For this purpose the lattice was changed by removing the injection from the arc to put it in a chicane which is added in one of the long straight sections. After presenting the limitation due to head tail effects, we will present the modification in the lattice and their impact on the dynamic aperture in the decay ring. Then the improvement on the beta-beam performance with respect to the lower transition gamma will be shown.

WEPS002

Limitations in Mitigating Collective Effects in the Beta-Beam Decay Ring by the Use of Octupoles

2481

C. Hansen
CERN, Geneva, Switzerland
E. Benedetto
National Technical University of Athens, Zografou, Greece
A. Chancé, J. Payet
CEA/DSM/IRFU, France

Funding: I acknowledge the financial support of the European Community under the European Commission Framework Programme 7 Design Study: EUROnu, Project Number 212372.
The beta-beam concept relies on the production, by beta decay of radioactive ions of a very high flux, of an electron neutrino and anti-neutrino beam towards a distant detector. After production and acceleration in an accelerator complex consisting of a rapid cycling synchrotron, the CERN PS and the CERN SPS, the radioactive isotopes are injected into a long racetrack-shaped ring, called the decay ring, where they orbit until they decay or are lost. The required intensities to store in the decay ring to reach the aimed neutrino fluxes are very high. Among the collective effects, the head tail effect, caused by transversal resonance impedance, is one of the main issues: the beam was shown to be unstable with the previous decay ring lattice. The lattice was changed to handle this problem; e.g. octupoles were included to increase the stability limit with an amplitude detuning. We here report on the improvement on the beta-beam performance with respect to amplitude detuning in the decay ring and discuss other mitigation attempts.

WEPS003

SIS18 – Intensity Record with Intermediate Charge State Heavy Ions

2484

P.J. Spiller
GSI, Darmstadt, Germany
L.H.J. Bozyk
FIAS, Frankfurt am Main, Germany
P. Puppel
HIC for FAIR, Frankfurt am Main, Germany

Funding: Project partly funded by the European Community DIRAC-PHASE-1 / Contract number: 515876
In order to reach the desired intensities of heavy ion beams for the experiments at FAIR, SIS18 and SIS100 have to be operated with intermediate charge states. Operation with intermediate charge state heavy ions at the intensity level of about 10¹¹ ions per cycle has never been demonstrated elsewhere and requires a dedicated upgrade program for SIS18 and a dedicated machine design for SIS100. The specific problems coming along with the intermediate charge state operation in terms of charge exchange processes at collisions with residual gas atoms, pressure bumps by ion induced desorption and corresponding beam loss appears far below the typical space charge limits. Thus, new design concepts and new technical equipment addressing these issues are developed and realized with highest priority. The upgrade program of SIS18 addressing the goal of minimum ionization beam loss and stable residual gas pressure conditions has been defined in 2005. A major part of this upgrade program has been successfully realized, with the result of a world record in accelerated number of intermediate charge state heavy ions.

WEPS004

Confinement, Accumulation and Diagnostic of Low Energy Ion Beams in Toroidal Fields

2487

M. Droba, A. Ates, O. Meusel, H. Niebuhr, U. Ratzinger, J.F. Wagner
IAP, Frankfurt am Main, Germany

An optimized design of a stellarator-type storage ring for low energy ion beams was numerically investigated. The magnetic field variation along the circumference and therefore magnetic heating is suppressed by using simple circular correction coils. Particle-in-Cell (PIC) simulations in a magnetic flux coordinate system show the ability of high current ion beam accumulation in such a configuration with unique features for clockwise and anticlockwise moving beams. Additionally scaled down experiments with two 30 degree room temperature toroidal segments were performed to demonstrate toroidal transport and to develop optical beam diagnostics. Properties of multi-component beams, redistribution of transversal momenta in the non-adiabatic part of the experimental configuration and investigation of strongly confined beam induced electron clouds will be addressed.

WEPS005

Investigation of Intrabeam Scattering in the Heavy Ion Storage Ring TSR

2490

S.T. Artikova, M. Grieser, J. Ullrich
MPI-K, Heidelberg, Germany

Intrabeam scattering (IBS) is a multiple scattering effect between stored beam particles. It leads to diffusion in all three spatial dimensions and thus, causes an expansion of the whole beam. IBS plays an important role in the equilibrium diameter of a low-velocity, electron-cooled ion beam. IBS effects for coasting and bunched 12C⁶⁺ ion beams at an energy of 73.3 MeV were studied using the TSR heavy ion cooler storage ring. Experimental results of the IBS rates are presented.

WEPS006

CNAO RF System: Hardware Description.

2493

L. Falbo, G. Burato
CNAO Foundation, Milan, Italy
M.M. Paoluzzi, G. Primadei
CERN, Geneva, Switzerland

CNAO is the Italian National Center of Oncological Hadrontherapy in Pavia. Proton beams are accelerated in the synchrotron and extracted in the energy range 60 to 250 MeV/u and carbon ion beams in the energy range 120 to 400 MeV/u. Trapping at the injection energy of 7 MeV/u and acceleration up to the extraction energy are done by an RF cavity which covers the needed wide range of frequency (0.4 to 3 MHz) and voltage (25 V to 5 kV) thanks to the use of a Vitrovac amorphous alloy. RF Gymnastics, including phase jumps to increase the momentum spread and empty bucket channelling, is requested and has been performed. A description of the hardware characteristics of the CNAO RF system and of its performance in terms of dynamic and static behaviour are reported in this paper.

WEPS007

CNAO Synchrotron Commissioning

2496

C. Priano, G. Balbinot, G. Bazzano, J. Bosser, E. Bressi, M. Caldara, H. Caracciolo, L. Falbo, A. Parravicini, M. Pullia, C. Viviani
CNAO Foundation, Milan, Italy
C. Biscari, A. Ghigo
INFN/LNF, Frascati (Roma), Italy

The CNAO (National Center for Oncological Hadrontherapy), located in Pavia, is the first Italian center for deep hadrontherapy with proton and carbon ion beams. The CNAO synchrotron initial commissioning has been carried out using proton beams in the full range of energies: 60 to 250 MeV/u. The first foreseen treatments will need energies between 120 and 170 MeV/u. The nominal proton currents have been reached. The energy scaling of the synchrotron systems and parameters leads to an extracted energy that matches the measured particle range better than 0.1 mm, fitting the treatment requirements, with repeatable beam size and beam current in the treatment room at all investigated energies. A summary of the main results of the synchrotron commissioning is presented.

WEPS008

Operation Status and Future Plan of J-PARC Main Ring

2499

T. Koseki
KEK, Ibaraki, Japan

The J-PARC Main Ring (MR) has started users operation since 2009. The MR has two beam extraction systems. One is a fast extraction (FX) system for beam delivery to the neutrino beam line of the Tokai-to-Kamioka (T2K) experiment, and the other is a slow extraction (SX) system for beam delivery to the hadron experimental hall. For the T2K experiment, the maximum beam power of 145 kW is delivered continuously. For users of the hadron experimental hall, the beam power of 3 kW is delivered with extraction efficiency of 99.5%. In this paper, status of the high power beam operation of the MR is presented. Future prospect for increasing beam intensity is also discussed.

WEPS010

Acceleration of High Intensity Proton Beams in the J-PARC Synchrotrons

2502

M. Yoshii
KEK/JAEA, Ibaraki-Ken, Japan
E. Ezura, K. Hara, K. Hasegawa, C. Ohmori, K. Takata, M. Toda
KEK, Ibaraki, Japan
T. Minamikawa
University of Fukui, Fukui, Japan
M. Nomura, A. Schnase, T. Shimada, F. Tamura, M. Yamamoto
JAEA/J-PARC, Tokai-mura, Japan

The J-PARC accelerator complex consists of the linac, the 3GeV rapid cycling synchrotron (RCS) and the 50GeV main synchrotron (MR). These synchrotrons are the first MW-class proton accelerators which employ the high electric field gradient magnetic alloy (MA) loaded RF cavities. The beam commissioning was started in October 2007 for RCS and in May 2008 for MR. High intensity beam operation studies and user runs have been performed, while carefully controlling and minimizing the beam loss. The cycle to cycle beam operation is reproducible and quite stable, because of the stable linac beam energy and the reproducible bending field in both synchrotrons. The MA loaded RF systems and the full digital LLRF also guarantee the stable longitudinal particle motion and precise beam transfer synchronization from RCS to the MLF user facility as well as to the MR. A high intensity proton beam of 2.5·10¹³ ppp is accelerated in RCS. And in MR, a beam intensity up to ~100 Tera ppp was obtained.　We summarize the RF systems and the longitudinal parameters in both rings.

WEPS011

Application of Orbit Response Matrix Method at CSNS/RCS

2505

Y.W. An, S. Wang
IHEP Beijing, Beijing, People's Republic of China

The China Spallation Neutron Source(CSNS) consists of a low energy linac and a high energy Rapid Cycling Synchrotron(RCS). RCS accumulates 80MeV beam and accelerates to 1.6GeV with 25Hz repetition rate and the average extraction beam power is 100kW. For controlling beam loss, the closed orbit should be adjusted as flexible as possible. The orbit response matrix(ORM) method is applied to correct the closed orbit distortion in RCS. The simulation study was made by using the code Linear Optics from Closed Orbit(LOCO) for CSNS/RCS, and the results of simulation study are presented.

WEPS013

Results of the Nuclotron Upgrade Program

2508

A.V. Eliseev, N.N. Agapov, A.V. Alfeev, V. Andreev, V. Batin, D.E. Donets, E.D. Donets, E.E. Donets, E.V. Gorbachev, A. Govorov, V. Karpinsky, V.D. Kekelidze, H.G. Khodzhibagiyan, A. Kirichenko, A.D. Kovalenko, O.S. Kozlov, N.I. Lebedev, I.N. Meshkov, V.A. Mikhailov, V. Monchinsky, S. Romanov, T.V. Rukoyatkina, A.O. Sidorin, I. Slepnev, V. Slepnev, A.V. Smirnov, A. Sorin, G.V. Trubnikov, B. Vasilishin
JINR, Dubna, Moscow Region, Russia
O.I. Brovko, A.V. Butenko, N.V. Semin, V. Volkov
JINR/VBLHEP, Moscow, Russia

The Nuclotron upgrade – the Nuclotron-M project, which had been started in 2007, involved the modernization of almost all of the accelerator systems, using beam time during seven runs devoted to testing newly installed equipment. Following the project goals, in March 2010 Xe ions were accelerated to about 1.5 GeV/u. In December 2010, the stable and safe operation of the magnetic system was achieved with a main field of 2 T. The successful completion of the project paves the way for further development of the Nuclotron-based Ion Collider fAcility (NICA).

WEPS014

RF Systems and Bunch Formation at NICA

2511

A.V. Eliseev, I.N. Meshkov, A.O. Sidorin, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia
O.I. Brovko
JINR/VBLHEP, Moscow, Russia
G.Y. Kurkin, V.M. Petrov
BINP SB RAS, Novosibirsk, Russia

The NICA facility being constructed at JINR will consists of two synchrotrons (Booster and Nuclotron) and collider working at constant magnetic field. To reach required luminosity level the collider rings will be operated with short ion bunches. The bunch formation in the collider as well as longitudinal dynamics in all the rings is described. The parameters and preliminary design of RF systems are presented.

WEPS017

Plans for the Upgrade of the LHC Injectors

2517

R. Garoby, S.S. Gilardoni, B. Goddard, K. Hanke, M. Meddahi, M. Vretenar
CERN, Geneva, Switzerland

The LHC Injectors Upgrade (LIU) project has been launched at the end of 2010 to prepare the CERN accelerator complex for reliably providing beam with the challenging characteristics required by the high luminosity LHC until at least 2030. Based on the work already started on Linac4, PS Booster, PS and SPS, the LIU project coordinates studies and implementation, and interfaces with the High Luminosity LHC (HL-LHC) project which looks after the upgrade of the LHC itself, expected by the end of the present decade. The anticipated beam characteristics are described, as well as the status of the studies and the solutions envisaged for improving the injector performances.

WEPS018

The Proposed CERN Proton-Synchrotron Upgrade Program

2520

S.S. Gilardoni, S. Bart Pedersen, W. Bartmann, S. Bartolome, O.E. Berrig, C. Bertone, A. Blas, D. Bodart, J. Borburgh, R.J. Brown, A.C. Butterworth, M.C.L. Buzio, C. Carli, P. Chiggiato, H. Damerau, T. Dobers, R. Folch, R. Garoby, B. Goddard, M. Gourber-Pace, S. Hancock, M. Hourican, P. Le Roux, L.A. Lopez Hernandez, A. Masi, G. Metral, Y. Muttoni, E. Métral, M. Nonis, J. Pierlot, S. Pittet, C. Rossi, I. Ruehl, G. Rumolo, L. Sermeus, R.R. Steerenberg, M. Widorski
CERN, Geneva, Switzerland

In the framework of the High-Luminosity LHC project, the CERN Proton Synchrotron would require a major upgrade to match the future beam parameters requested as pre-injector of the collider. The different beam dynamics issues, from space-charge limitations to longitudinal instabilities are discussed, as well as the proposed technical solutions to overcome them, covering the increase of the injection energy to RF related improvements.

WEPS019

Study of a Rapid Cycling Synchrotron to Replace the CERN PS Booster

2523

K. Hanke, O. Aberle, M. E. Angoletta, B. Balhan, W. Bartmann, M. Benedikt, J. Borburgh, D. Bozzini, C. Carli, P. Dahlen, T. Dobers, M. Fitterer, R. Garoby, S.S. Gilardoni, B. Goddard, J. Hansen, T. Hermanns, M. Hourican, S. Jensen, A. Kosmicki, L.A. Lopez Hernandez, M. Meddahi, B. Mikulec, A. Newborough, M. Nonis, S. Olek, M.M. Paoluzzi, S. Pittet, B. Puccio, V. Raginel, I. Ruehl, H.O. Schönauer, L. Sermeus, R.R. Steerenberg, J. Tan, J. Tückmantel, M. Vretenar, M. Widorski
CERN, Geneva, Switzerland

CERN’s proton injector chain is undergoing a massive consolidation and upgrade program in order to deliver beams meeting the needs of the LHC Luminosity Upgrade. As an alternative to the upgrade of the existing Proton Synchrotron Booster (PSB), the construction of a Rapid Cycling Synchrotron (RCS) has been studied. This machine would replace the PSB and deliver beams to the LHC as well as to CERN’s rich fixed-target physics program. This paper summarizes the outcome of the feasibility study along with a tentative RCS design.

WEPS020

Study of an Energy Upgrade of the CERN PS Booster

2526

K. Hanke, O. Aberle, M. E. Angoletta, W. Bartmann, S. Bartolome, C. Bertone, A. Blas, J. Borburgh, D. Bozzini, A.C. Butterworth, C. Carli, P. Dahlen, T. Dobers, A. Findlay, R. Folch, N. Gilbert, J. Hansen, T. Hermanns, S. Jensen, P. Le Roux, L.A. Lopez Hernandez, E. Mahner, A. Masi, B. Mikulec, Y. Muttoni, A. Newborough, D. Nisbet, M. Nonis, S. Olek, M.M. Paoluzzi, S. Pittet, B. Puccio, V. Raginel, I. Ruehl, J. Tan, B. Todd, W.J.M. Weterings, M. Widorski
CERN, Geneva, Switzerland

CERN’s LHC injector chain will have to deliver beams with ultimate brilliance as the LHC is heading for increased luminosity in the coming years. In order to overcome bottlenecks in the injector chain, an increase of the beam transfer energy from the CERN Proton Synchrotron Booster (PSB) to the Proton Synchrotron (PS) has been investigated as a possible upgrade scenario. This paper gives an overview of the technical solutions and summarizes the conclusions of the feasibility study.

WEPS022

Ions for LHC: Performance of the Injector Chain

2529

D. Manglunki, M. E. Angoletta, P. Baudrenghien, G. Bellodi, A. Blas, T. Bohl, C. Carli, E. Carlier, S. Cettour Cave, M. Chanel, K. Cornelis, H. Damerau, A. Findlay, S.S. Gilardoni, S. Hancock, J.M. Jowett, D. Kuchler, S. Maury, E. Métral, S. Pasinelli, M. Schokker, G. Tranquille, B. Vandorpe, U. Wehrle, J. Wenninger
CERN, Geneva, Switzerland

The first LHC Pb ion run took place at 1.38 A TeV/c per beam in autumn 2010. After a short period of running-in, the injector chain was able to fill the collider with up to 137 bunches per ring, with an intensity of 10⁸ Pb ions/bunch, about 50% higher than the design value. This yielded a luminosity of 3E25 Hz/cm², allowing the experiments to accumulate just under 10 inverse microbarn each during the four week run. We review the performance of the individual links of the injector chain, and address the main issues limiting the LHC luminosity, in view of reaching 10²6 Hz/cm² in 2011, and substantially beyond when the LHC energy increases after the long shutdown in 2013-14.

WEPS023

A Possible RF System for CERN RCS

2532

M.M. Paoluzzi
CERN, Geneva, Switzerland

As part of the LHC Injectors Upgrade (LIU) program at CERN the possibility of replacing the PSB with a new Rapid Cycling Synchrotron (RCS) is considered. The requirements in terms of accelerating voltage (60 kV), frequency range (1.7 MHz – 9.5 MHz) and available space (4 m) make the RF system development quite challenging. The improved loss characteristics of the new FINEMET® type (FT3L) combined with a filter-like topology, allows achieving all the requirements. This paper describes the design of such a RF system.

WEPS024

Beta Beams: An Accelerator-based Facility to Explore Neutrino Oscillation Physics

2535

E.H.M. Wildner, E. Benedetto, T. De Melo Mendonca, C. Hansen, T. Stora
CERN, Geneva, Switzerland
D. Berkovits
Soreq NRC, Yavne, Israel
G. Burt, A.C. Dexter
Cockcroft Institute, Lancaster University, Lancaster, United Kingdom
A. Chancé, J. Payet
CEA/DSM/IRFU, France
M. Cinausero, G. De Angelis, F. Gramegna, T. Marchi, G.P. Prete
INFN/LNL, Legnaro (PD), Italy
G. Collazuol
Univ. degli Studi di Padova, Padova, Italy
F. Debray, C. Trophime
GHMFL, Grenoble, France
T. Delbar, T. Keutgen, M. Loiselet, S. Mitrofanov
UCL, Louvain-la-Neuve, Belgium
G. Di Rosa
INFN-Napoli, Napoli, Italy
M. Hass, T. Hirsch
Weizmann Institute of Science, Physics, Rehovot, Israel
I. Izotov, S. Razin, V. Skalyga, V. Zorin
IAP/RAS, Nizhny Novgorod, Russia
L.V. Kravchuk
RAS/INR, Moscow, Russia
T. Lamy, L. Latrasse, M. Marie-Jeanne, T. Thuillier
LPSC, Grenoble, France
M. Mezzetto
INFN- Sez. di Padova, Padova, Italy
A.V. Sidorov
BINP SB RAS, Protvino, Moscow Region, Russia
P. Sortais
ISN, Grenoble, France
A. Stahl
RWTH, Aachen, Germany

Funding: This contribution is a project funded by European Community under the European Commission Framework Programme 7 Design Study: EUROnu, Project Number 212372.
The recent discovery of neutrino oscillations, has implications for the Standard Model of particle physics (SM). Knowing the contribution of neutrinos to the SM, needs precise measurements of the parameters governing the neutrino oscillations. The EUROν Design Study will review three facilities (the so-called Super-Beams, Beta Beams and Neutrino Factories) and perform a cost assessment that, coupled with the physics performance, will give means to the European research authorities to make a decision on future European neutrino oscillation facility. "Beta Beams" produce collimated pure electron (anti-)neutrino by accelerating beta active ions to high energies and having them decay in a storage ring. EUROν Beta Beams are based on CERN’s infrastructure and existing machines. Using existing machines is an advantage for the cost evaluation, however, this choice is also constraining the Beta Beams. Recent work to make the Beta Beam facility a solid option will be described: production of Beta Beam isotopes, the 60 GHz pulsed ECR source development, integration into the LHC-upgrades, ensure the high intensity ion beam stability, and optimizations to get high neutrino fluxes.

WEPS025

First Beam Experiments at ISIS with a Low Output-impedance Second Harmonic Cavity

2538

Y. Irie, S. Fukumoto, K. Muto, H. Nakanishi, T. Oki, A. Takagi
KEK, Ibaraki, Japan
D. Bayley, I.S.K. Gardner, R.J. Mathieson, A. Seville, J.W.G. Thomason
STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
J.C. Dooling, D. Horan, R. Kustom
ANL, Argonne, USA
M.E. Middendorf
ORNL RAD, Oak Ridge, Tennessee, USA

A Low Output-Impedance (LOI) rf drive, which may be suitable for future high intensity accelerator applications, has been developed jointly by ANL, ISIS and KEK for an ISIS synchrotron second harmonic cavity. The cavity is ferrite-loaded, and is driven by a high-power triode (240 kW plate dissipation) with a plate-to-grid feedback circuit. The impedance is designed to be 20~30 ohms over a 2-6 MHz frequency range. Beam induced voltage has been measured with the ISIS beam, and compared with that calculated from the designed output impedance.

WEPS028

Lattice Design of a Rapid Cycling Medical Synchrotron for Carbon/Proton Therapy

2541

D. Trbojevic, J.G. Alessi, M. Blaskiewicz, C. Cullen, H. Hahn, D.I. Lowenstein, I. Marneris, W. Meng, J.-L. Mi, C. Pai, D. Raparia, A. Rusek, J. Sandberg, N. Tsoupas, J.E. Tuozzolo, A. Zaltsman, W. Zhang
BNL, Upton, Long Island, New York, USA
N.M. Cook
Stony Brook University, Stony Brook, USA
J.P. Lidestri
HHMI, New York, USA
M. Okamura
RBRC, Upton, Long Island, New York, USA
S. Peggs
ESS, Lund, Sweden

Funding: Work supported by Cooperative Research and Development Agreement (CRADA), No. BNL-C-10^-03 between the Brookhaven National Laboratory and Best Medical International, Inc.
We present a design of the ion Rapid Cycling Medical Synchrotron (iRCMS) for carbon/proton cancer therapy facility. The facility design, produced at Brookhaven National Accelerator (BNL) at the Collider Accelerator Division (CAD) for the BEST Medical International, Inc., will be able to treat the cancer patients with carbon, lighter ions and protons. The low energy part accelerates ions and protons to the kinetic energy of 8 MeV. It consists of two ion sources (one of fully stripped carbon ions and one for protons), a Radio-Frequency Quadrupole (RFQ) and linac. The 8 GeV beam is injected into a fast cycling synchrotron (iRCMS). The lattice design is a racetrack, with zero dispersion two parallel straight sections. There are 24 combined function magnets in the two arcs with a radius of ~5.6 meters with maximum magnetic field of less than 1.3 T. The acceleration is performed in 30 Hz up to the required energy for the cancer tumor treatment assuming the spot scanning technique. The maximum energy for carbon ions is 400 MeV. Ions are extracted in a single turn and fed to different beam lines for patient treatment.