cyclotron

Paper	Title	Other Keywords	Page
WEPSB025	Center Region Design of the Superconducting Cyclotron C400	simulation, ion, 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.
WEPSB037	Specific Features of Automatic Control Systems for Applied Cyclotrons	controls, vacuum, ion, 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.
THPSC020	Compact Cyclotron as a Proton Source for the Detection of Explosives Based on Nuclear Resonance Absorption in Nitrogen	injection, storage-ring, emittance, ion	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.
THPSC027	Dubna Project of Cyclotron C250 for Proton Therapy Application	proton, extraction, simulation, ion	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	ion, target, controls, 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.
THPSC037	Compact Superconducting Synchrocyclotrons at Magnetic Field Level of up to 10 T for Proton and Carbon Therapy	proton, synchro-cyclotron, ion, 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.
FRCHA01	Development of Accelerators and Detector Systems for Radiacian Medicine in DLNP JINR	proton, extraction, ion, 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	ion, 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