RuPAC-2010 - List of Keywords (ion)

A B C D E F G H I K L M O P Q R S T U V W

ion

Paper	Title	Other Keywords	Page
TUCHB02	Project of the Nuclotron-based Ion Collider fAcility (NICA) at JINR	collider, heavy-ion, booster, proton	14
	A. O. Sidorin, N. N. Agapov, V. Aleksandrov, A. V. Butenko, E. D. Donets, A. V. Eliseev, V. V. Fimushkin, A. Govorov, V. Karpinsky, V. D. Kekelidze, H. G. Khodzhibagiyan, V. Kobets, S. A. Kostromin, A. D. Kovalenko, O. S. Kozlov, A. Kuznetsov, I. N. Meshkov, V. A. Mikhailov, V. Monchinsky, V. Shevtsov, A. N. Sissakian, A. V. Smirnov, A. Sorin, G. V. Trubnikov, V. Volkov, V. Zhabitsky JINR, Dubna, Moscow Region O. I. Brovko JINR/VBLHEP, Moscow T. Katayama GSI, Darmstadt
	The Nuclotron-based Ion Collider fAcility (NICA) is the new accelerator complex being constructed at JINR aimed to provide collider experiments with heavy ions up to uranium at the center of mass energy from 4 to 11 GeV/u. It includes 6 Mev/u linac, 600 MeV/u booster, upgraded SC synchrotron Nuclotron and collider consisting of two SC rings, which provide average luminosity of the level of 10²⁷cm^-2s^-1.
	Slides

TUCHZ01	Accelerator Complex U70 of IHEP: Present Status and Recent Upgrades	extraction, proton, feedback, synchrotron	27
	S. V. Ivanov IHEP Protvino, Protvino, Moscow Region
	The report* overviews status of the U70, accelerator complex of IHEP-Protvino comprising four machines (2 linear accelerators and 2 synchrotrons). Particular emphasis is put on the recent upgrades implemented since the previous conference RuPAC-2008. * On behalf of the U70 staff

TUCHZ02	Maintenance of ITEP-TWAC Facility Operation and Machine Capabilities Development	acceleration, laser, proton, injection	32
	N. N. Alexeev, P. N. Alekseev, A. Balabaev, V. I. Nikolaev, Yu. A. Satov, V. A. Schegolev, B. Y. Sharkov, A. Shumshurov, V. P. Zavodov ITEP, Moscow
	Funding: This work is supported by ROSATOM The ITEP-TWAC facility operation with proton and heavy ion beams for ~4000 hours per year in several modes of beam acceleration and accumulation is determined by present-day demands of different beam users in the frame of current machine resources. Displacement of state interests from fundamental research to strictly-practical tasks stimulates multimode operation of accelerators with trend of beam using for applications. Mastering of Ag¹⁹⁺ ions acceleration in the UK ring up to the energy of 100 MeV/u and Fe²⁶⁺ beam stacking in the U-10 ring at the energy of >200 MeV/u in addition to routine operation with C⁶⁺ beam at energy of 200-400 MeV/u with fast and slow extraction of circulating beam clear the way to beam using for a lot of applications requiring extension of the facility experimental area. Development of laser ion source technology takes aim at high current and high charge state ions generation for elements with A ~60 to be effectively stacked in the U-10 ring with multiple charge exchange injection technique. The machine maintenance efforts and current activities aiming at both subsequent improvement of beam parameters and extending of beam applications are presented
	Slides

TUPSA012	TBA Scheme with Ion/Proton Driving Beam	proton, electron, synchrotron, positron	62
	A. A. Mikhailichenko CLASSE, Ithaca, New York E. G. Bessonov LPI, Moscow
	We are considering a Two Beam Accelerator scheme for electron-positron collisions with Ion/Proton driving beam. We compare the proposed scheme and the CLIC one coming to conclusion, that Ion/Proton driving TBA scheme looks more attractive. Existences of big proton accelerators in few laboratories give a new boost to reconsider the baseline for post LHC era. These labs are FERMILAB, BNL, CERN and IHEP at Protvino, Moscow region. Protvino could emerge as one advantageous place for resurrection of proton synchrotron in existing ~20-km long tunnel. This synchrotron was planned as a booster for 2x2 TeV UNK complex. * K. Hubner, CERN/PS 92-43(DI), CLIC Note No.176,1992. ** E. A. Perevedentsev, A. N. Skrinsky, Preprint BINP 79-80, Novosibirsk, 1979.

TUPSA014	Design of the Nuclotron Booster in the NICA Project	booster, injection, electron, dipole	68
	A. O. Sidorin, N. N. Agapov, A. V. Eliseev, V. Karpinsky, H. G. Khodzhibagiyan, A. D. Kovalenko, G. L. Kuznetsov, I. N. Meshkov, V. A. Mikhailov, V. Monchinsky, A. V. Smirnov, G. V. Trubnikov, B. Vasilishin JINR, Dubna, Moscow Region
	The main goal of the Nuclotron booster construction are following: accumulation up to 4*10⁺⁹ Au³²⁺ ions; acceleration of the ions up to energy of 600 MeV/u that is sufficient for stripping of the ions to the bare nucleus state; simplification of the requirements to the vacuum conditions in the Nuclotron; forming of the required beam emittance at the energy of 100 MeV/u with electron cooling system. The features of this booster, the requirement to the main synchrotron systems and their parameters are presented.

TUPSA015	Injector Complex of the NICA Facility	rfq, linac, electron, proton	71
	A. O. Sidorin, A. V. Butenko, E. D. Donets, E. E. Donets, V. V. Fimushkin, A. Govorov, V. Kobets, I. N. Meshkov, V. Monchinsky, G. V. Trubnikov JINR, Dubna, Moscow Region A. Belov RAS/INR, Moscow O. K. Belyaev, Yu. A. Budanov, A. P. Maltsev, I. A. Zvonarev IHEP Protvino, Protvino, Moscow Region V. V. Kapin MEPhI, Moscow
	The injection complex of the NICA facility consists of existing Alvarez-type linac LU-20, new heavy ion linac HILac, polarized and heavy ion sources. The LU-20 is under modernization now, the HILac will be constructed during coming years. Parameters of the accelerators are presented.

TUPSA016	Stochastic Cooling System Prototype for Nuclotron	pick-up, kicker, vacuum, collider	74
	A. O. Sidorin JINR, Dubna, Moscow Region
	Joint Institute for Nuclear Research (JINR) initiated the creation of a new and unique heavy-ion collider – Nuclotron-based Ion Collider Facility (NICA). By estimations the luminosity will mainly be limited by the intra-beam scattering effect. To suppress one, it was proposed to use the beam cooling. In the coming years it’s planned to construct stochastic cooling system prototype at operating accelerator Nuclotron to test different working modes. An analyze of existing methods of stochastic cooling is given in the report. The first results of simulations and different elements of the system prototype for Nuclotron, as well as plans for its realization at JINR are presented.

TUPSA017	Project of JINR Superconducting Synchrotron for Hadron Therapy	injection, synchrotron, dipole, emittance	77
	E. Syresin, N. N. Agapov, A. V. Eliseev, G. G. Hodshibagijan, V. Karpinsky, A. D. Kovalenko, I. N. Meshkov, V. A. Mikhailov, A. G. Olshevsky, G. Shirkov, S. G. Shirkov, G. V. Trubnikov, A. Tuzikov JINR, Dubna, Moscow Region
	The project of medical carbon synchrotron at maximal ion energy of 400 MeV/n was developed in JINR. The project goal is accumulation of the superconducting technology at construction of the carbon synchrotron with a circumference of 65 m on basis of Nuclotron type magnet elements. For injection of the carbon ions it is proposed to use IH linac of C⁴⁺ at energy 4 MeV/n. Superconducting gantry at a weight of 150 t is developed for patient treatment.

TUPSA018	Intercation of the Biomolecular Ions with the Electron Target in the Electrostatic Storage Ring	electron, target, storage-ring, resonance	80
	S. G. Shirkov JINR, Dubna, Moscow Region
	A nanostructure of the radiation damages is formed at an interaction of decelerated protons or carbon ions with DNA molecules at hadron therapy. A local interaction of the ion beam with the bimolecular structures in the human cells is defined mainly by parameters of the ion tracks. The track core is connected with ionization properties of the charged ion, its cross-section sizes are defined by the delta-electrons. The delta-electron energy varies statistically from several eV to few keV therefore they lead to substance ionization along their trajectory on a distance several nanometers from that point where they were produced. Interaction of the delta-electrons with DNA molecules and other biological structures is one of the important mechanisms realized in process of the hadron therapy. A study of interaction of the accelerated biomolecular ions with an electronic target in electrostatic storage ring was performed for modeling of an input of the delta-electrons in processes of the hadron therapy.

TUPSA020	Development of Injector for ITEP Heavy Ion Synchrotron Based on Laser Plasma Generator	laser, plasma, target, heavy-ion	86
	Yu. A. Satov, N. N. Alexeev, A. Balabaev, A. D. Belokurov, I. D. Hrisanov, B. Y. Sharkov, A. Shumshurov, A. A. Vasilyev ITEP, Moscow
	A schematic diagram of heavy ion injector based on laser ion sources is described. Two different basic laser configurations used in ITEP synchrotron. First laser excels in simplicity and consists of CO2 free-running laser that is applied for carbon target plasma heating and ionization at laser power density q=3·1012W/cm² to create high current C⁴⁺ ion beam. Second master oscillator-amplifier (MOPA) laser configuration intends for production super high laser intensity at a target to provide considerable charge state in a plasma of heavy elements (Al, Fe, Ag etc). This laser configuration is founded on original physical principle* that simplifies the installation and ensures high reliability for long term operation. Laser characteristics for the different laser scheme and ion current for injector outlet beam of C⁴⁺ and Ag⁺19 are shown in this paper. The latter was accelerated in synchrotron for energy up to 100 MeV/u. * K. N. Makarov et al. Quantum Electronics (Russian), 2001, 31 (1), pp. 23-29

TUPSA022	Simulation of Au³²⁺ Beam Losses Due to Charge Exchange and Dynamic Vacuum in Nuclotron Booster	booster, simulation, vacuum, beam-losses	89
	A. O. Sidorin, A. Kuznetsov, V. A. Mikhaylov, G. V. Trubnikov JINR, Dubna, Moscow Region A. V. Philippov JINR/VBLHEP, Dubna, Moscow region P. Puppel, P. J. Spiller GSI, Darmstadt
	The StrahlSim code was used to simulate the beam loss and the dynamic vacuum for the proposed Nuclotron booster. The Nuclotron booster will accelerate Au³²⁺ ions from 6.2 MeV/u to 600 MeV/u. The simulations have been carried out considering systematic injection (0% to 10%) and RF-capture losses (5% to 15%). Furthermore the influence of an ion catcher system on the beam loss has been investigated, in order to estimate, if such a system could stabilize the beam loss. Without an ion catcher system, zero systematic losses, and a static pressure of , the transmission was calculated to be 83%. The presence of an ion catcher system would stabilize the transmission at a considerably higher level than without such a system for all scenarios.

TUPSA026	RTS&T Code Status	simulation, radiation, target, resonance	92
	I. I. Degtyarev, O. A. Liashenko, F. N. Novoskoltsev, I. A. Yazynin IHEP Protvino, Protvino, Moscow Region A. I. Blokhin Institute of Physics and Power Engineering (IPPE), Obninsk
	The paper describes the main features of the RTS&T–2010 — the modern version of the RTS&T (Radiation Transport Simulation and Isotopes Transmutation problem) code system. RTS&T performs detailed Monte Carlo simulations of many type of particles transport in complex spatial geometries with composite materials in the energy range from thermal energy up to 100 TeV. The RTS&T code considers interaction of low-, intermediate-, and high- energy particles with condensed matter, including hadron-nucleus interactions inside the target, generation and transportation of secondary particles, deposition of energy and production of radionuclides in the target. Recently, the transfer of ions was added and tested.

TUPSA027	The Compact Faraday Cup for Radiobiological Researches in IHEP Accelerators Beams	vacuum, proton, acceleration, electron	95
	A. V. Koshelev, Y. Antipov, G. A. Dantsevich, A. V. Larionov, V. S. Seleznev IHEP Protvino, Protvino, Moscow Region
	IHEP’s experts are currently working on the creation of a medical irradiation centre with beams of protons and carbon ions on the basis of an accelerating complex. Already existing accelerators I-100 - U-1,5 - U-70 are forming a complete chain capable of accelerating not only protons, but also, due to certain modifications, light deuteron and carbon nucleus. The compact autonomic Faraday cup which works in the atmospheric environment has been developed to measure currents in the accelerators beams. The device has a good electromagnetic protection. It is compact and allows to make measurements on any (from 600 mm long) open site of a beam line. Vacuum tests and work with biological samples on a beam of protons of I-100 accelerator have proved that the Faraday cup is meeting all the requirements.

TUPSA034	Distortions of Proton Beam 2-D Images and Profiles due to Beam Space Charge	proton, simulation, space-charge, linac	116
	P. I. Reinhardt-Nickoulin, A. Feschenko, S. A. Gavrilov, I. V. Vasilyev RAS/INR, Moscow
	The special residual gas ion transverse section monitor is used at Proton LINAC INR RAS output to provide measurements of beam parameters. There are distortions and errors of measurements which are caused by various external and internal factors during the formation of beam transverse section images. Below estimations of these distortions and results of numerical simulation of registration process of images are resulted, resolution of the detector and accuracy of measurements which are spent with it are discussed.

WECHA01	Status of the Nuclotron	acceleration, vacuum, heavy-ion, ion-source	127
	A. O. Sidorin, N. N. Agapov, V. Aleksandrov, V. Batin, A. V. Butenko, E. D. Donets, A. V. Eliseev, A. Govorov, V. Karpinsky, V. D. Kekelidze, H. G. Khodzhibagiyan, A. Kirichenko, A. D. Kovalenko, O. S. Kozlov, I. N. Meshkov, V. A. Mikhailov, V. Monchinsky, S. Romanov, V. Shevtsov, A. N. Sissakian, I. Slepnev, V. Slepnev, G. V. Trubnikov, B. Vasilishin, V. Volkov JINR, Dubna, Moscow Region O. I. Brovko JINR/VBLHEP, Moscow
	The 'Nuclotron-M' project started in 2007 is considered as the key point of the first stage of the NICA/MPD project. General goal of the 'Nuclotron-M' project is to prepare all the systems of the Nuclotron for its long and reliable operation as a part of the NICA collider injection chain. Additionally the project realization will increase the Nuclotron ability for realization of its current experimental program. Results of the last runs of the Nuclotron operation are presented.
	Slides

WECHA02	Acceleration of Deuterons up to 23.6 GeV per Nucleon through I100, U1.5, and U70 of IHEP	light-ion, acceleration, proton, synchrotron	130
	S. V. Ivanov IHEP Protvino, Protvino, Moscow Region
	The paper* reports on the recent progress en route of implementing the program of accelerating light ions in the Accelerator Complex U70 of IHEP-Protvino. The crucial milestone of guiding the deuteron beam through entire cascade of three accelerators available to a specific kinetic energy of 23.6 GeV per nucleon was accomplished in April 2010, which confirms feasibility of the project goal to diversify our main proton machine U70 to a light-ion synchrotron as well. * On behalf of the U70 staff
	Slides

WECHZ05	Electron Cooling Experiments in CSR	electron, injection, accumulation, heavy-ion	161
	X. D. Yang, G. H. Li, J. Li, X. M. Ma, L. J. Mao, R. S. Mao, T. L. Yan, J. C. Yang, Y. J. Yuan IMP, Lanzhou V. V. Parkhomchuk, V. B. Reva BINP SB RAS, Novosibirsk
	The 7MeV/u 12C⁶⁺ ion beam was accumulated in CSRm,the ion beam accumulation dependence on the parameters of cooler was investigated experimentally. The 400MeV/u 12C⁶⁺ and 200MeV/u 129Xe⁵⁴⁺ was stored and cooled in CSRe, the cooling force was measured in different condition. The ion beam bunch length and transverse size were roughly measured.
	Slides

WECHC02	Electrostatic Storage Rings at the Ultra-low Energies Range	storage-ring, antiproton, lattice, electron	169
	A. I. Papash JINR, Dubna, Moscow Region C. P. Welsch The University of Liverpool, Liverpool
	Electrostatic storage rings have proven to be invaluable tools for atomic and molecular physics at the ultra-low energy range from 1 to 100 keV/A. Due to the mass independence of the electrostastic rigidity, these machines are able to store a wide range of different particles, from light ions to heavy singly charged bio-molecules. Reaction Microscope incorporated into a ring lattice is considered to be a new powerful tool to study high precision effects by multiple crossing of incident beam of ions with ultrasonic gas jet. To enable operation of Reaction Microscope one should provide very short bunches in the 1-2 nanosecond regime in order to pave the way for kinematically complete measurements of the collision dynamics of fundamental few-body quantum systems on the level of differential cross sections. However, earlier measurements at some rings showed strong limitations depending on beam intensity, probably linked to non-linear fields that cannot be completely avoided in such machines. In this contribution, we discuss common features of electrostatic storage rings and analyse rings performance.
	Slides

WEPSB005	Light Sources in Russia	electron, storage-ring, radiation, undulator	184
	E. G. Bessonov LPI, Moscow
	Possible ways of development of Light Sources based on charged particle accelerators and storage rings in Russia are discussed.

WEPSB009	Acceleration of Heavy Ions in Space Periodic Quadrupole RF Focusing Structure	rfq, acceleration, focusing, quadrupole	190
	Yu. A. Budanov, O. K. Belyaev, A. Maltsev, I. A. Zvonarev IHEP Protvino, Protvino, Moscow Region
	On the basis of the structures with a longitudinal magnetic field resonators it is possible to apply a system of space periodic RF quadrupole focusing (RFQ DTL) for acceleration of heavy ions. Essential RFQ DTL feature is dependence of focusing properties of the channel on a phase of a high-frequency field. Thus, the bunches of particles after preliminary acceleration in RFQ should have small phase size. However at acceleration of heavy ions the phase size of bunch changes slowly and it remains rather big after RFQ. The developed matching device, consisting of buncher and quadrupole lenses, allows to solve the given problem and, in general, to improve the matching on all six phase variables. Numerical calculations are carried out by the example of ions of gold in RFQ DTL at working frequency of 74 MHz, input energy 0.4 MeV/n and output energy 2 MeV/n.

WEPSB015	Simulation of Carbon Ion Extraction and Low Energy Beam Transport System for RFQ at the Linac I-100	rfq, extraction, plasma, emittance	201
	B. A. Frolov IHEP Protvino, Protvino, Moscow Region
	For the carbon ion injection into the radio frequency quadrupole, a laser ion source and a low energy beam transport system (LEBT) has to deliver 20 mA C+5 ion beam with 80 keV at the entrance of RFQ within normalized emittance of 0.4Pi mm mrad. An extraction system and a low energy transport line should be optimized to reduce the beam emittance as far as possible. The results of computer simulation are presented for extraction and LEBT systems: combinations of a tetrode extraction system and an electrostatic focusing lens consisting of three electrodes with negative voltage of a middle grid electrode.

WEPSB025	Center Region Design of the Superconducting Cyclotron C400	cyclotron, simulation, injection, focusing	221
	G. A. Karamysheva, N. A. Morozov, E. Samsonov JINR, Dubna, Moscow Region M. Abs, Y. Jongen, W. J.G. M. Kleeven, S. Zaremba IBA, Louvain-la-Neuve O. Karamyshev JINR/DLNP, Dubna, Moscow region
	Compact superconducting isochronous cyclotron C400 has been designed at IBA (Belgium) in collaboration with the JINR (Dubna). This cyclotron will be used for radiotherapy with proton, helium or carbon ions. The ions extracted from the source and transported with the axial line are bent into the median plane of the cyclotron by a spiral inflector. The optimal design of the inflector and cyclotron center for acceleration of the ion beams in the 4th RF harmonic mode was investigated. A computer model of the dee geometry with the inflector and inflector housing was created. The 3D magnetic field map and 3D electric field map were used for beam dynamics simulations. Comparison between field map created in electrostatic simulation and field map from RF simulation is given. Results of the beam tracking are presented.

WEPSB028	Booster Electron Cooling System of NICA Project	electron, booster, emittance, gun	230
	A. V. Smirnov, E. V. Ahmanova, I. N. Meshkov, R. Pivin, A. Yu. Rudakov, V. I. Shokin, A. O. Sidorin, N. D. Topilin, Yu. A. Tumanova, S. Yakovenko JINR, Dubna, Moscow Region A. V. Shabunov JINR/VBLHEP, Moscow
	Nuclotron-based Ion Collider fAcility (NICA) is the new accelerator complex being constructed on the JINR site. A few cooling systems are considered for the NICA project – electron one for the Booster-synchrotron and for Collider rings – both electron and stochastic ones. The main goal of the Booster electron cooler is a decrease of the longitudinal emittance from the injection value to the necessary value for acceleration to Nuclotron. The designed electron cooling system for Collider rings have to prevent the emittance growth due to the intrabeam scattering and to keep the average luminosity on the constant value. The peculiarity of electron cooling systems is the using of superconducting solenoids to provide the beam transportation in cooling sections.

WEPSB037	Specific Features of Automatic Control Systems for Applied Cyclotrons	cyclotron, controls, vacuum, injection	254
	A. P. Strokach, V. P. Bagrievich, A. N. Kuzhlev NIIEFA, St. Petersburg
	A distributed automatic control system for the MCC-30-15 compact medical cyclotron has been built on the hierarchy principle. The lower hierarchical level consists of controllers for various systems of the cyclotron, which are networked on the basis of Profibus. An industrial Advantech-type computer has been chosen as the host computer of the system. The upper hierarchical level also contains computers to control the RF system of the cyclotron and operator workstation. Computers of the upper hierarchical level are networked on the basis of Ethernet. The number of computers for the operator workstation is limited only by the Ethernet bandwidth and the speed of the host computer. To measure the beam current, a multi-channel high-precision measuring current amplifier has been developed, signals from which are sent to a high-speed ADC. It is possible to view current pulse oscillograms, which makes much more easy the adjustment of the cyclotron modes.

WEPSB042	Universal Timer Module for the Timing System of the Accelerating-Storage Complex ITEP-TWAC	controls, linac, synchrotron, extraction	269
	A. Y. Orlov, P. N. Alekseev, S. V. Barabin, D. A. Liakin ITEP, Moscow
	A multipurpose synchronization module for renovating timing system of ITEP-TWAC accelerator facility is developed. A group of such modules is aimed to implement a sophisticated set of synchronization functions among four accelerators – proton linac I2, ion injector I3, buster synchrotron UK and accelerating and storage ring U10. This FPGA based module generates up to 16 output pulses related to timing scale (T), magnetic field scale (B), radio frequency, external events or their combination. The read back function allows controlling the pulses propagation on cycle-to-cycle basis. The structure of the module, a description of basic functions and IO interface are presented in details. Also an example of system configuration based on the developed module is discussed.

THCHA01	The Nonlinear Transformation of a Ions Beam in the Plasma Lens	plasma, focusing, target, luminosity	280
	A. A. Drozdovsky, N. N. Alexeev, S. A. Drozdovsky, A. Golubev, Yu. B. Novozhilov, P. V. Sasorov, V. V. Yanenko ITEP, Moscow
	The focusing capabilities of a plasma lens depend on the stage of plasma development. Under certain conditions a magnetic field is linear, that allow to focus the beam to a very small spot. In other conditions, the magnetic field is nonlinear, that allow formation of hollow and others beam structures. The work deals with the study of the last type of a plasma lens. Calculations and measurements were performed for a C+6 and Fe+26 beams of 200 MeV/a.u.m. energy. The obtained results and analysis are reported.
	Slides

THCHB01	Study of INR RAS Linac Pulsed Duoplasmatron	plasma, extraction, emittance, ion-source	289
	A. Belov, O. T. Frolov, E. S. Nikulin, V. P. Yakushev RAS/INR, Moscow V. Zubets BNL, Upton, Long Island, New York
	Results of numerical simulation and experimental study of hydrogen ion beam from a pulsed duoplasmatron with different plasma expansion cap geometry are given. Intensive beam current oscillations with frequency of ~1MHz and up to 70% modulation level (for ion current ~ 100 mA) with plasma expansion cap of different shape were observed. It has been found by direct measurements that these oscillations are formed during plasma transport through the expansion cap. Noiseless mode of operation for the pulsed duoplasmatron has been obtained with the plasma expansion cap of new design. Results of the 400keV hydrogen ion beam current and emittance measurements are presented.

THCHB02	SCRF Development at TRIUMF	linac, acceleration, electron, heavy-ion	292
	V. Zvyagintsev, B. Amini, C. D. Beard, R. J. Dawson, T. Emmens, K. Fong, A. Grassellino, P. R. Harmer, D. Kishi, P. Kolb, A. Koveshnikov, C. Laforge, D. Lang, M. P. Laverty, R. E. Laxdal, R. Leewe, D. Longuevergne, M. Marchetto, A. K. Mitra, T. C. Ries, I. Sekachev, R. W. Shanks, B. S. Waraich, F. Yan, Q. Zheng TRIUMF, Vancouver R. Edinger PAVAC, Richmond, B. C. R. S. Orr, W. Trischuk University of Toronto, Toronto, Ontario
	TRIUMF started SCRF development with the superconducting heavy ion linear accelerator project, ISAC-II, in 2000. Since that time much work has been completed for development, prototyping and testing. The ISAC-II project was successfully completed and we now have in operation 40 superconducting bulk Nb QWR cavities assembled in eight cryomodules. The last twenty cavities, just completed, were produced by PAVAC Industries Inc. of Richmond BC; the first superconducting accelerator cavities produced in Canada. In 2007 TRIUMF started development towards a 50MeV electron superconducting linear accelerator to be used as a driver to produce radioactive ion beams through photofission. The accelerator is based on TTF/ILC elliptical bulk Nb cavities technology. Results, experience and plans of the SCRF program at TRIUMF will be discussed.
	Slides

THCHZ01	First Radiocarbon Measurements at BINP AMS	background, ion-source, target, vacuum	309
	S. Rastigeev, A. R. Frolov, A. D. Goncharov, V. Klyuev, E. S. Konstantinov, S. G. Konstantinov, L. A. Kutnykova, V. V. Parkhomchuk, M. Petrichenkov, A. V. Petrozhitskii BINP SB RAS, Novosibirsk
	Present status of the BINP accelerator mass spectrometry (AMS) facility is described. The results of experiments for beam selection and radiocarbon concentration analysis in trial samples are presented.
	Slides

THPSC002	Feasibility of Alternating-Phase Focusing for a Chain of Short Independently-Phased Resonators	linac, focusing, proton, acceleration	322
	V. V. Kapin, A. Nesterovich MEPhI, Moscow
	Alternating-phase focusing (APF) is usually realized in a long drift-tube structure with multiple acceleration gaps. The synchronous phase alternates periodically gap-by-gap according to either sinusoidal or square-wave laws. The period of synchronous phase oscillations depends on charge-to-mass ratio of accelerated ions and increases with beam energy. One period may include up to 10^-20 accelerating gaps. In the case of square-wave law, the sets of 5-10 neighboring gaps have the same synchronous phase, while whole structure consists of continuous chain such gap-sets with a constant value of synchronous phases. Therefore, every such gap-set can be formed into a separate resonator. As result a long multiple gap structure is converted into a chain of short independently-phased resonators. Such realization of APF linac allows more flexibility in a phase variation, while additional focusing-matching lenses can be set up in betweens of resonators. In this report possible parameters of such linac are evaluated and discussed.

THPSC003	Development of Wire-Meshed Electrostatic Lenses for Proton Linac	focusing, proton, linac, rfq	325
	V. V. Kapin, B. Y. Bogdanovich, A. Nesterovich, V. V. Yanenko MEPhI, Moscow
	The 2-MeV 150-MHz proton RFQ linac is set up at the Radiation-Acceleration Center (RAC) of Moscow-Engineering Physics Institute (MEPhI). Its output beam-line contains doublet of the electrostatic focusing lenses with a novel design featured by the two-dimensional electric field and wire-meshed beam apertures. Every lens provides a transverse focusing effect only in one plane, while does not affect on the beam in a perpendicular plane. In this report, the analytical and numerical analysis of this lens is presented. The optics of output beam-line including these lenses is evaluated with TRACE-3D code. The experimental construction of the lens doublet is presented.

THPSC020	Compact Cyclotron as a Proton Source for the Detection of Explosives Based on Nuclear Resonance Absorption in Nitrogen	cyclotron, injection, storage-ring, emittance	363
	L. M. Onischenko, S. B. Vorozhtsov JINR/DLNP, Dubna, Moscow region Yu. G. Alenitsky, A. A. Glazov, E. E. Perepelkin, A. S. Vorozhtsov JINR, Dubna, Moscow Region J. T. Kwan, R. E. Morgado, T.-S. F. Wang LANL, Los Alamos, New Mexico
	In the proposed operational implementation of the Nuclear Resonance Absorption (NRA) method for explosives detection, the inspected object is scanned by a beam of 9.17 MeV gamma rays of a precise energy to determine the fraction of the beam resonantly absorbed in the nitrogen nuclei of the explosive. The 9.17 MeV gamma rays are most readily generated in the inverse reaction, in which a 1.747 MeV proton is resonantly captured by C13, followed by the emission of gamma rays from the recoiling N14 nucleus. To achieve the stringent requirements of a 1.747 MeV proton beam with an intensity of several milliampere and with as small as possible energy spread and angular divergence , a compact isochronous cyclotron with internal H-minus ion source and current of ~2mA was considered as a stand-alone source or as an injector (with a current of ~200 microA) into a storage ring.

THPSC025	Low Level RF Control of ITEP-TWAC Facility	controls, booster, synchrotron, proton	374
	P. N. Alekseev, S. V. Barabin, A. D. Milyachenko, V. P. Zavodov ITEP, Moscow
	Digital LLRF control system was developed to improve the RF system mobility in multimode operation of the ITEP-TWAC booster and main synchrotrons. High precision mapping of the magnetic field derivative signal to the reference function of accelerating frequency f(B) allows to accelerate ions of any type in both rings up to relativistic energies even without feedback loops. The first modification of the LLRF control module is based on a fixed point DSP, which operates with the frequency lookup table to calculate the accelerating frequency. This module is now used in the booster synchrotron. Upgraded module has a floating point DSP, which allows calculation of the accelerating frequency "on the fly". This module is in operation in the main ring. Short description of the systems is given. Some results and experience obtained at operation with the number of types of particles, such as protons and ions of carbon, aluminum, iron and silver, are presented.

THPSC026	Status of HITS Injector	target, ion-source, vacuum, tandem-accelerator	376
	A. V. Semenov, V. G. Cherepkov, V. Klyuev, E. S. Konstantinov, E. A. Kuper, V. R. Mamkin, A. S. Medvedko, P. I. Nemytov, V. V. Repkov, V. B. Reva, R. A. Salimov, D. V. Senkov, V. A. Vostrikov BINP SB RAS, Novosibirsk
	Ion injector for cancer therapy facility HITS was designed and assembled at BINP. Injector is based on electrostatic tandem accelerator with 1.25 MV at the high voltage terminal. The negative ion beams are injected into tandem and charge exchanged in the vapor-magnesium target with vacuum heat insulation. The results of injector tests and working with carbon ion beam are presented.

THPSC027	Dubna Project of Cyclotron C250 for Proton Therapy Application	cyclotron, proton, extraction, simulation	379
	Yu. G. Alenitsky, A. A. Glazov, G. A. Karamysheva, S. A. Kostromin, L. M. Onischenko, E. Samsonov, S. B. Vorozhtsov JINR, Dubna, Moscow Region O. Karamyshev, O. Lepkina, N. L. Zaplatin JINR/DLNP, Dubna, Moscow region
	Abstract Project of C250 – cyclotron for proton therapy is consider. Energy of the extracted from cyclotron beam was increased according to medical requirements up to 250 MeV. 4-fold and compact types of magnet yoke were studied by 3D computer magnetic field calculations. The ability of optimal combination of the magnet yoke, new form of HF systems of the cyclotron based on the dynamics of the proton beam in calculated magnetic and accelerating field is under discussion. Dubna scientific medicine center is under development since 1967 on the base of the proton beam of LNP JINR Phazotron. Proton beam with energy Ер~170 MeV and intensity I~0.1 mkA is used for patients irradiation. Proposal of the cyclotron with the same beam characteristics was reported earlier at the RUPAC04 ICAA05, RUPAC06, RUPAC08and printed in magazine. In this paper the new form of HF system, which with the help of 3d computing program made is consider.

THPSC034	Ion Scanning System in Beam Line of U-400M Cyclotron for Electronic Components Testing	target, controls, cyclotron, extraction	387
	A. A. Fateev, E. V. Gorbachev, G. G. Gulbekyan, I. V. Kalagin, V. I. Kazacha, N. Yu. Kazarinov, E. V. Muravieva JINR, Dubna, Moscow Region
	The channel B5 of the U-400M cyclotron is designed for irradiation of integrated circuits by beams of accelerated ions to determine their radiation resistance. The results of the beam transport calculations for various ion types taking into account the beam parameter changes on passing a collimator and degrader are presented. The resulting beam size on a target is obtained for all beam variants. The calculated beam size on the target varies in the range from 15 cm up to 30 cm. An analysis of three variants of the magnetic scanning system is made. The working scheme, construction and main technical characteristics of the optimal variant are presented.

THPSC035	Compromise Systems for Transport Proton and Ion Beams in Medical Aims	proton, target, quadrupole, beam-transport	390
	M. M. Kats ITEP, Moscow
	Traditional GANTRY is not suitable for future centers of therapy by proton or ion beams by reasons of its enormous size, rotation with precision of significant mass, huge electricity consumption and extremely high cost. Review of various compromise solutions for beam transport to a patient is presented in the report: horizontal beam, rotation of patient around the vertical axis, beams with fixated directions, beams with fixated directions and with additional patient rotation around the horizontal axis (with the use of tomography and with additional adjustment after each rotation) and planar systems in different versions. It was shown that planar systems are the most promising solution at the present moment.

THPSC037	Compact Superconducting Synchrocyclotrons at Magnetic Field Level of up to 10 T for Proton and Carbon Therapy	proton, cyclotron, synchro-cyclotron, focusing	393
	A. I. Papash, G. A. Karamysheva JINR, Dubna, Moscow Region L. M. Onischenko JINR/DLNP, Dubna, Moscow region
	Based on brief analysis of accelerators widely used for proton-ion therapy and patient cure during last 20 years the feasibility and importance of compact superconducting synchrocyclotrons operating at magnetic field level up to 10 T is outlined. The main component of modern commercial facility for proton-ion therapy is an isochronous cyclotron with room temperature or superconducting coils accelerating protons up to 250 MeV as well as synchrotron accelerating carbon ions up to 400 MeV/A. Usually ions are delivered from accelerator into the treatment room by transport lines. Irradiation is done by system of pointed to the patient magnets, collimators, energy degraders which are attached to the rotating Gantry. To greatly reduce price of facility (almost in one order of magnitude) and to simplify operational conditions of hospital personal it is proposed to provide iso-centric rotation of compact superconducting synchrocyclotron around the patient. Main physical and technical parameters are described in the paper.

FRCHX01	The High-Current Deuteron Accelerator for the Neutron Therapy	target, controls, radiation, power-supply	399
	V. M. Skorkin, S. V. Akulinichev, A. V. Andreev RAS/INR, Moscow
	Physical project of neutron sources for the neutron therapy and neutron activation analysis is proposed. The neutron sources are based on beam provided by the high-current deuteron accelerator. Neutron sources produces 14 MeV fast neutrons with intensity up to 5*10¹² n/s using T(D,n)4He threshold reaction at the energy of deuteron beam about 400 keV and average current up to 20 mA. Neutron source can be makes for neutron capture therapy (NCT) by using of moderator system consisted of the tungsten converter, bismuth reflector, graphite and polyethylene. Liquid-crystalline DNA-Gd nanoparticles, as a potential biomaterial for NCT were investigated on the thermal neutron beam. S. V. Akulinichev, A. V. Andreev Institute for Nuclear Research of RAS, Moscow, Russia
	Slides

FRCHA01	Development of Accelerators and Detector Systems for Radiacian Medicine in DLNP JINR	cyclotron, proton, extraction, septum	402
	E. Syresin, N. V. Anfimov, G. A. Chelkov, G. A. Karamysheva, M. Y. Kazarinov, S. A. Kostromin, N. A. Morozov, G. V. Mytzin, A. G. Olshevsky, V. M. Romanov, E. Samsonov, N. G. Shakun, G. Shirkov, S. G. Shirkov JINR, Dubna, Moscow Region M. Abs, A. Blondin, Y. Jongen, D. Vandeplassche, S. Zaremba IBA, Louvain-la-Neuve
	The DLNP JINR activity is aimed at developing two directions in radiation medicine: development of accelerator technique for proton and carbon treatment of tumors and new types of detector systems for spectrometric computed tomography (CT) and combined magnetic resonance tomography (MRT)/positron emission tomography (PET). JINR-IBA realized the development and construction of proton medical cyclotron C235-V3. At present time all basic cyclotron systems were constructed. During 2010 we plan to assemble this cyclotron in JINR and in 2011 perform tests with extracted proton beam. A superconducting isochronous cyclotron C400 has been designed by IBA-JINR collaboration. This cyclotron will be used for radiotherapy with proton, helium and carbon ions. The 12C⁶⁺and 4He²⁺ ions will be accelerated to the energy of 400 MeV/amu, the protons will be extracted at the energy 265 MeV. The C400 construction is started in 2010 in frame of the Arharde project (France).
	Slides

FRCHA03	MCC-30/15 Cyclotron - Parameters, Adjusting Works and their Results	cyclotron, acceleration, extraction, emittance	408
	A. P. Strokach, P. V. Bogdanov, A. V. Galchuck, V. G. Mudrolubov, M. F. Vorogushin NIIEFA, St. Petersburg
	Medical Compact Cyclotron MCC-30/15 is intended for acceleration of hydrogen and deuterium negative ions in the energy control range. The Cyclotron was designed in the frame of the Contract on delivering of the Cyclotron MCC-30/15 equipment to the Accelerator Laboratory of Jyvaskyla University, Finland. The Cyclotron is built up on the base of the electromagnet of the shielded type with the pole diameter of 140 cm. The Cyclotron is equipped with the external negative hydrogen and deuterium ions injection system. The particle acceleration is performed on fixed frequency (second and fourth harmonics). The beam current of 30-18 MeV protons and 15-9 MeV deuterons extracted into two beam lines is equal to more than 100 mkA and 50 mkA, accordingly. The Cyclotron equipment was delivered to the Buyer, the commissioning work was finished on April 30, 2010.
	Slides