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proton

         
Paper Title Other Keywords Page
MOZMA03 Status of FFAG Developments acceleration, focusing, synchrotron, resonance 21
 
  • S. Machida
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  Status of FFAG Developments will be talked, which includes nonscaling FFAG for muon acceleration, scaling FFAG for medical and industrial use. The talk focuses on beam dynamics points of view, as well as the on-going project around the world.  
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TUXMA02 Record Luminosities at the Tevatron & Future Potentiality collider, luminosity, antiproton, target 51
 
  • S. J. Werkema
    Fermilab, Batavia, Illinois
  Fermilab Collider Run II has been in progress for nearly six years. During this tine the D0 and CDF experiments have each acquired total integrated luminosities of nearly 2.2 fb-1. Also during this time the peak instantaneous luminosities increased by more than a factor of 25 ' from 10 to as high as 270 ×1030 cm-2 s-1. An aggressive collider upgrade program continues to make significant progress in conjunction with luminosity production operations. This paper will give the status of Tevatron operations and expectations for the remainder of Run II.  
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TUXMA03 Next Generation Electron-Ion Colliders electron, ion, luminosity, collider 56
 
  • I. Ben-Zvi
    BNL, Upton, Long Island, New York
  The next generation of electron-ion colliders is expected to deliver much higher luminosity, a high degree of polarization of both the leptons and hadrons, multiple interaction points and large ratios of beam energies as compared to the first end only such collider, HERA. Energy Recovery Linacs (ERLs) have significant potential uses as providers of lepton beams for colliders in High Energy Physics and Nuclear Physics. We describe plans for these colliders which are under development by various laboratories and the technology issues that are associated with these applications. The advantages of ERLs for these applications are numerous and will be outlined in the text. It is worth noting that some of these advantages are the high-brightness of the ERL beams and their relative immunity to beam-beam disturbances.  
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TUZMA01 RHIC Status luminosity, polarization, electron, ion 74
 
  • T. Roser
    BNL, Upton, Long Island, New York
  As the first hadron accelerator and collider consisting of two independent superconducting rings RHIC has operated with a wide range of beam energies and particle species. Machine operation and performance will be reviewed that includes high luminosity gold-on-gold and copper-on-copper collisions at design beam energy (100 GeV/u), asymmetric deuteron-on-gold collisions as well as high energy polarized proton-proton collisions (100 GeV on 100 GeV) with beam polarization of up to 65%. Plans for future upgrades of RHIC will also be discussed.  
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TUPMA001 New Connection Cryostat to Insert FP420 Proton Tagging Detector in the LHC Ring cryogenics, vacuum, alignment, controls 103
 
  • S. M. Pattalwar
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
  • T. Colombet, S. Marque, T. Renaglia, D. K. Swoboda
    CERN, Geneva
  • B. Cox, K. M. Potter, F. Roncarolo
    UMAN, Manchester
  • D. Domenico
    INFN-Torino, Torino
  FP420 is a R&D project to assess the feasibility of installing proton tagging detectors in the region 420m from the interaction points at the LHC. They would function as new sub-detectors at ATLAS/CMS, allowing the measurement of the spatial position and arrival time of outgoing protons emerging almost intact from the collision. Forward proton tagging in this region is expected to open a new programme of electroweak, QCD and BSM physics. At present the 420m region is enclosed in a 'connection cryostat' (maintained at 1.9K) that provides continuity for the LHC beam, cryogenic & vacuum services and electrical power circuits through superconducting bus bars. The requirement of near room temperature operation and critical position control close to the beam pipes has made inserting FP420 detectors in this region a very complex task. The currently favoured design calls for the replacement of the connection cryostats with a new ~12m long assembly that will have all the necessary features of the existing connections cryostat as well as the appropriate environment for the operation of the detectors. This paper mainly describes the cryogenic aspects of the new connection cryostat.  
 
TUPMA105 Transverse Matching of the SNS Linac Based on Profile Measurements linac, emittance, beam-losses, quadrupole 250
 
  • D.-O. Jeon, P. Chu
    ORNL, Oak Ridge, Tennessee
  For a high intensity linac such as the SNS linac, it matters to match to minimize the beam mismatch and potential beam loss. It was observed that matching was improved through the matching technique based on the beam profile measurements from wirescanners.

*SNS is managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the U. S. Department of Energy.

 
 
TUPMA109 Thermal-Induced Frequency Detuning of 350 MHz RFQ Structure rfq, linac, controls, injection 256
 
  • N. K. Sharma, S. C. Joshi, N. K. Sharma
    RRCAT, Indore (M. P.)
  A 350 MHz, 4.5 MeV RFQ structure is being studied for proposed High Power Proton Linac for Indian SNS. At high RF duty operation of RFQ due to RF induced heating the structure would be subjected to thermal deformations and hence the detuning of resonating structure from its designed resonating frequency. A detailed Thermal-Structural-Electromagnetic sequential analysis of RFQ has been performed using Multi-physics ANSYS (Finite Element Analysis Software). A cooling scheme has been worked out to get the efficient heat removal from the structure to minimize the thermal induced frequency shift. During analysis the parameters such as cooling water flow rate, cooling water inlet temperatures, cooling channel locations, cavity thickness etc. are varied to study the effect of these parameters on temperature distribution and associated frequency variation. The frequency shift is found highly sensitive to vane tip cooling parameters.  
 
TUPMA119 Beam Line Design for PEFP User Facility linac, target, vacuum, optics 271
 
  • Y.-S. Cho, B. H. Choi, B. C. Chung, K. Y. Kim, K. R. Kim, Y.-H. Kim, Y. Y. Lee
    KAERI, Daejon
  In the Proton Engineering Frontier Project (PEFP), 20MeV and 100MeV proton beams from a 100MeV proton liner accelerator will be supplied to users for beam applications. The basic lattice for beam transport line will be FODO from the linac to the targets. Dipole magnets exited with shaped AC currents will distribute the beam from the linac to five targets simultaneously. To provide flexibilities of irradiation conditions for users from many application fields, we design beam lines to the targets with wide or focused, external or in-vacuum, and horizontal or vertical beams. The details of the beam line design will be reported.  
 
TUPMA122 High Power Neutron Converter for Low Energy Proton/Deuteron Beams: Present Status target, vacuum, radiation, electron 274
 
  • K. Gubin, A. V. Antoshin, M. S. Avilov, D. Bolkhovityanov, S. Fadeev, N. N. Lebedev, P. V. Logachev, P. Martyshkin, S. Shiyankov
    BINP SB RAS, Novosibirsk
  • L. B. Tecchio
    INFN/LNL, Legnaro, Padova
  In BINP, Russia, the high temperature neutron target for SPES project (INFN-LNL, Italy) is proposed. The target is designed to produce up to 10**14 neutron per second within the energy range of several MeV under irradiation by proton/deuteron beam of power up to 200 kW. By now the target prototype is successfully tested. The development of liquid metal driving system and target general design is started. Presented paper describes the design of the target and the target prototype as well as the results of prototype tests under high-power electron beam. Special attention is paid to the carbon material with high content of 13C isotope. The material is produced following the original technology and used for manufacturing the converter irradiated with the proton beam.  
 
WEZMA01 Upgrades to the ISIS Spallation Neutron Source linac, target, synchrotron, rfq 300
 
  • C. R. Prior
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  With studies of a European Spallation Source (ESS) suspended and high-level discussions taking place over the future of neutrons in Europe, efforts are being made to ensure the sustained success of ISIS well into the foreseeable future. Recent developments include upgrading the injector by replacing the Cockcroft Walton with an RFQ, and installation of a new dual harmonic RF system that should eventually enable up to 50% more protons to be accelerated in the ring. A programme of ion source development also aims at improved reliability, enhanced beam current and longer life-time. This promise of more beam power has led to construction of a second target station providing users with additional experimental facilities starting in October 2008. In the longer term, ideas are forming either for a new high intensity proton driver or for a phased development of ISIS to the 5MW level. As an alternative to generating neutrons, such a machine might also be part of a neutrino factory, a complex of accelerators generating neutrinos from muon decay. This paper describes these activities and identifies their relative importance on an international development scale.  
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WEZMA02 China Spallation Neutron Source Design linac, target, injection, dipole 310
 
  • J. Wei
    BNL, Upton, Long Island, New York
  • S. X. Fang, S. Fu, H. F. Ouyang, Q. Qin, H. Qu, J. Tang, S. Wang, X. Xu
    IHEP Beijing, Beijing
  • J. Feng, Q. W. Yan, J. Zhang, Z. Zhang
    IPHY, Beijing
  • F. W. Wang
    Institute of Physics, Chinese Academy of Sciences, Beijing
  The China Spallation Neutron Source (CSNS) is a newly approved project to be constructed in Guangdong, China. The accelerator complex consists of an H- linear accelerator and a rapid cycling synchrotron accelerating the beam to 1.6 GeV at 25 Hz repetition rate. The primary challenge is to build a robust and reliable user’s facility with upgrade potential at a fraction of “world standard” cost. During the past years, major iterations were made on the design of CSNS accelerator systems. This paper summarizes the machine design and discusses rationale of design revisions.  
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WEZMA03 High Power Proton Accelerator in Korea linac, rfq, radiation, site 315
 
  • B. H. Choi, S. An, Y.-S. Cho, B. C. Chung, J.-H. Jang, J-Y. Kim, K. Y. Kim, K. R. Kim, H.-J. Kwon, Y. Y. Lee, J. W. Park
    KAERI, Daejon
  A high power proton accelerator project, Proton Engineering Frontier Project (PEFP), as one of the 21C Frontier Projects conducted by Korean Government, has goals to develop a 100MeV high current proton linear accelerator, its beam utilization and industrial applications. As the front end of the 100MeV accelerator, a 20MeV linear accelerator consisted of a 50 keV proton injector, a 3 MeV RFQ, a 20 MeV DTL, was completed and tested. The rest part of the accelerator and various beam lines for beam utilizations are under construction, and also a site preparation and construction works are under progresses in cooperation with Gyeongju city. In parallel proton beam utilization and accelerator application technologies are extensively studied and under development. In this paper the status and the future plan of the project including test results of the 20MeV accelerator, site preparation and construction works, and development of proton beam utilization and user program will be presented in detail.  
 
WEPMA010 8 GeV Beam Line Optics Optimization for the Rapid Antiproton Transfers at Fermilab antiproton, lattice, optics, controls 345
 
  • V. P. Nagaslaev, V. A. Lebedev, J. P. Morgan, D. Vander Meulen
    Fermilab, Batavia, Illinois
  Tevatron Run-II upgrade requires a significant increase of the efficiency and speed of the antiproton transfers from the Accumulator to the Recycler. This goal represents a great challenge as the time between stopping and initiating the stacking regime should change from 1 hour down to a few minutes. Here we discuss the beam line optics aspects of this project. Results of lattice measurements and optimization are analyzed in terms of transport efficiency and stability.  
 
WEPMA014 Inhomogenous Field Wien Filter Design focusing, ion, rfq, coupling 354
 
  • P. Jain, D. P. Chakravarthy, A. K. Ray, P. Roychowdhury
    BARC, Mumbai
  The Wien velocity filter is a useful device that transports pure proton fraction from high-power ECR proton source to the RFQ. It is a deflecting device having crossed electrostatic and magnetostatic fields both perpendicular to the beam trajectory that deflects and eliminates the undesired species of ions from the main beam. A tilted-pole Wien filter (*) surpasses the classical parallel-rectangular-poles Wien filter in performance as the former eliminates the astigmatism. The present paper describes the design of an inhomogeneous field Wien filter where the equations of motion are developed and solved in a first-order approximation for a paraxial ion beam inside an ExB mass separator without considering the space charge effects. References : (*) New tilted-poles Wien filter with enhanced performance Review of Scientific Instruments 60 (3), March 1989  
 
WEPMA035 Degradation of the Beam passing through Idle Coupled Cavities impedance, linac, coupling, injection 369
 
  • Y. Shobuda
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
  • S. Machida
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  Effects of wake fields on high intensity proton beam are studied, when it passes through idle coupled cavities. There is the same number of frequencies as the number of gaps that consist on the coupled cavity. Since cavities are designed for the accelerated beam, the shunt impedance for each mode is different from the designed value, when the beam is not accelerated. This change of shunt impedances reduces the detuning effect for the reduction of beam degradation.  
 
WEPMA045 Study of Space Charge Compensation In LEBT space-charge, simulation, quadrupole, rfq 384
 
  • S. C.L. Srivastava, T. Basak, R. Pande, S. Roy, P. Singh, V. L.SR. sista
    BARC, Mumbai
  A 20 MeV, 30 mA CW proton accelerator is being built in BARC which consists of 50 keV ECR ion-source, LEBT, 3 MeV RFQ, MEBT and 20 MeV DTL. In designing low energy beam transport (LEBT) line, which matches the beam from ion-source to RFQ, the expansion of the proton beam is a severe problem. As the energy of the beam is only 50 keV, coulomb repulsion is enormous and for minimization of this repulsion, space charge compensation is done. In this process, a gas is introduced in the beam pipe, which gets ionized by the beam. The produced electrons are trapped in the beam potential and reduce the repulsive space charge forces. To simulate the beam dynamics part, a PIC code is written, which allows beam of different distributions like KV, Parabolic, and Waterbag. This is an electrostatic code, which can also take care of external magnetic fields. A Monte Carlo collision scheme is being implemented for the ionization of the background gas. In this paper, we are presenting the simulation of space charge compensation of the 30 mA proton beam at 50 keV.

e-mail: shashics@barc.gov.in

 
 
WEPMA103 The Design And Performance of the Prototype Digital Feedback RF Control System For the PLS Storage Ring controls, feedback, linac, resonance 464
 
  • I. H. Yu, J. Y. Huang, H.-S. Kang, D. T. Kim, H. Y. Kim, S.-C. Kim, I. S. Park
    PAL, Pohang, Kyungbuk
  The digital feedback RF control system for the Proton Engineering At the Pohang Light Source (PLS) Storage Ring, the low level RF system based on analog technique provides RF field control for the 4 RF stations, and each station drives each RF cavity at 500.082MHz. To achieve better control system stability and accuracy, the prototype digital feedback RF control has been developed in Pohang Accelerator Laboratory (PAL). In addition to RF field control, it provides cavity resonance control, and incorporates the personnel and machine protection functions. An accelerator electric field stability of ± 0.5% in amplitude and ± 0.5° in phase is required for the RF system. In order to accomplish these requirements, a digital feedback control technique is adopted for flexibility of the feedback and feed forward algorithm implementation. In this paper, the design and performance of this system will be presented with the performance test results.  
 
WEPMA119 Control Characteristics of the PEFP RF System controls, klystron, power-supply, site 485
 
  • H.-J. Kwon, Y.-S. Cho, I.-S. Hong, H. S. Kim, K. T. Seol, Y.-G. Song
    KAERI, Daejon
  A 20 MeV proton accelerator has been developed and tested at Proton Engineering Frontier Project (PEFP) as a front-end part of the 100 MeV accelerator. The initial test results showed that more stable rf operation was necessary to investigate the machine characteristics more deeply. A LLRF control system using commercially available digital board was newly developed and tested for this purpose. The goals of the rf control for 20 MeV accelerator are to achieve errors within 1 % in amplitude and 1 degree in phase against external perturbations such as the change of resonant frequency, fluctuation of klystron power supply voltage and also beam loading. In addition, the PEFP 20 MeV DTL has unique characteristics that single klystron drives four tanks simultaneously. In this paper, the initial test results of the rf system with digital controller are presented and its control characteristics are discussed.  
 
WEPMA120 Development of the Digital RF Control System for the PEFP Proton Accelerator feedback, controls, simulation, beam-loading 488
 
  • H. S. Kim, Y.-S. Cho, I.-S. Hong, H.-J. Kwon, K. T. Seol, Y.-G. Song
    KAERI, Daejon
  The low level RF system is under development for the PEFP Proton Accelerator. The RF amplitude and phase stability requirements of the LLRF system are ±1% and ±1°, respectively. As a prototype of the LLRF, a simple digital PI control system based on commercial FPGA board is designed and tested. The main features are a sampling rate of 40 MHz which is four times higher than the down-converted cavity signal frequency, digital in-phase and quadrature detection, pulsed mode operation with the external trigger, and a simple proportional-integral feedback algorithm. The control logic is implemented in the Xilinx FPGA by using VHDL coding and the application program based on the VxWorks and VME platform is also developed. In this paper, the detailed design study and the test results of the prototype LLRF system are presented.  
 
WEPMA124 Preliminary Design, Analysis and Manufacturing Aspects of Low Beta 350 MHz Reentrant Superconducting RF Cavity linac, rfq, cryogenics, beam-transport 497
 
  • D. K. Mishra, M. Bagre, P. R. Hannurkar, V. Jain, G. Mundra, M. Prasad, A. Puntambekar, P. Shrivastava
    RRCAT, Indore (M. P.)
  A superconducting reentrant cavity for low beta, high intensity beam has been designed using SUPERFISH and MAFIA. The study has been done for cavity shape optimization considering the minimization of surface fields. Further its structural design has been done and feasibility study of different manufacturing aspects has also been done. A full-scale mild steel model with copper coating has been fabricated. A twin arm mechanical tuner has been designed for slow tuning by elastic deformation. This was tested with low power RF to validate the design parameters and to check the tuning sensitivity. In this paper the design and development activity of the reentrant superconducting will be discussed  
 
WEPMA132 Superconducting Niobium Resonator Fabrication And Testing At IUAC linac, electron, coupling, controls 500
 
  • P. N. Prakash, D. Kanjilal, K. K. MISTRI, A. Roy, S. S.K. Sonti, J. Zacharias
    IUAC, New Delhi
  Superconducting niobium resonator fabrication and testing facilities have been developed at Inter-University Accelerator Centre. The facilities are used to construct niobium resonators for the superconducting booster linac as well as for future accelerator development projects. In the first phase a single quarter wave resonator (QWR) was successfully fabricated and tested. In the second phase two completely indigenously built QWRs were constructed. In cold tests at 4.5 K one of them performed at 3.5 MV/m with 3.5 W RF input power, exceeding the nominal design goal. After the successful completion of this project production of fifteen QWRs for the 2nd and 3rd linac modules began. This work has progressed sufficiently and we plan to complete the production by mid ‘2007. In addition to resonator fabrication the facilities have been used for other developments such as a new design of niobium-stainless steel transition assembly, slow tuner modifications, and repairing of the existing QWRs. Details of the activities and performance of the resonators will be presented.  
 
WEPMA133 Evaluation of External Q Using Kroll-Yu Method With Microwaves Studio resonance, coupling, impedance, superconductivity 503
 
  • A. S. Dhavale, K. C. Mittal
    BARC, Mumbai
  Design and development of superconducting cavity has been taken up as a part of Accelerator Driven Subcritical project(ADSS). An input coupler is designed for the same using Kroll-Yu method*. The evaluation procedure is optimized and the method has been successfully implemented for the evaluation high external Q**. The validity of the Kroll-Yu method is tested with the external Q calculations by P. Balleyguier method for the Benchmark cavtity which is a pillbox cavity of diameter ~200 mm, length ~150 mm with semi-rigid coaxial line***. It is found that the careful choice of data points provides accurate results over wide range.

* N. M.Kroll, D. U.L. Yu, "Computer determination of the external Q and resonant frequency of waveguide loadaed cavities", SLAC-PUB-5171, Jan1990(A) ** A. S.Dhavale and K. C.Mittal,"Evaluation of external Q of the superconducting cavity using Kroll-Yu method", Review Of Scientific Instruments 77, 066101 (2006)*** P. Balleyguier, "A straightforward method for cavity external Q computation", Particle Accelerators, Vol.57, P.113-127, 1997

 
 
THXMA02 Linear Accelerator Designs for the Upgrade of the CERN Proton Injector Complex (Linac4, SPL) linac, injection, ion, luminosity 529
 
  • M. Vretenar, G. Bellodi, R. Garoby, F. Gerigk, K. Hanke, A. M. Lombardi, S. Maury, M. Pasini, C. Rossi, E. Zh. Sargsyan
    CERN, Geneva
  Looking beyond the commissioning of the LHC, which is expected to start at the end of 2007, CERN is setting up its scientific plan for the years to come. The concerns about the reliability of the old LHC injectors and the need to progressively remove the technical bottlenecks towards higher luminosity in the LHC have initiated a reflection on the design of the main elements of the LHC injection chain. A plan under consideration foresees in the years 2007-2010 the construction of a 160 MeV H− linear accelerator, Linac4, injecting into the old 1.4 GeV PS Booster (PSB). In a second stage, the PSB could be replaced by a superconducting linac, the SPL, at an energy between 3.5 and 5 GeV. The Proton Synchrotron (PS) would be in turn replaced by a new PS2 reaching a higher energy of 50 GeV. Linac4 and SPL can operate at a higher duty cycle than needed for LHC injection, allowing functioning as a high-intensity facility for neutrino or radioactive ion physics at a later stage. This paper describes the design of the two linear accelerators involved in this upgrade strategy, Linac4 and SPL, and outlines some results of the R&D programme aimed at preparing the construction of Linac4.  
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THZH101 Review of Hadron Machines for Cancer Therapy ion, cyclotron, linac, synchrotron 573
 
  • M. Kanazawa
    NIRS, Chiba-shi
  Charged particle therapy is now taking a long step from research stage to routine treatment. Highly reliable and sophisticated systems are required at reasonable cost. There are about two dozens of therapy accelerators working in the world. Besides the proton beams, carbon beam is being watched with keen interest because of its excellent clinical effects in cancer treatments. Accelerators which deliver heavy charged particles for cancer therapy will be reviewed.  
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THPMA022 Design of the Proposed 250 Mev Superconducting Cyclotron Magnet cyclotron, superconducting-magnet, focusing, radiation 661
 
  • M. K. Dey, R. K. Bhandari, U. Bhunia, J. Chaudhuri, A. Dutta, A. Dutta Gupta, C. Mallik, S. Murali, J. Pradhan, S. Saha, S. S. Sur
    DAE/VECC, Calcutta
  VECC has proposed a project for the design and development of a 250 MeV superconducting proton cyclotron, which may be used in therapy. In this paper we describe the preliminary design calculations for the superconducting magnet. Hard-edge approximation method has been adopted for finding the poletip geometry to meet the basic focusing requirements of the beam. The uniform-magnetization method has been applied to calculate the 3D magnetic field distribution due to saturated iron poletips, to verify the beam dynamical issues and optimize the poletip geometry. GM type closed cryo-cooler technology is being considered for steady state liquifaction of evapourated He gas from magnet cryostat.  
 
THPMA045 Analysis and Design of Parallel Resonant Network Power Supply for a Rapid Cycling Synchrotron synchrotron, power-supply, quadrupole, target 685
 
  • S. R. Tiwari, M. Borage, K. Swarna
    RRCAT, Indore (M. P.)
  Rapid Cycling Synchrotron (RCS) requires dc biased sinusoidal excitation for electromagnets. Power supplies based on resonant schemes are best suited for such applications, as only the losses of the resonant network are drawn from the mains and the magnets are energized by resonating its inductance with external energy storage elements. In this paper study of various options for powering the magnets and its excitation source is carried out. Optimization of network elements for parallel resonant network with respect to the operating and investment cost is carried out. Tolerance analysis of a high-Q resonant network with respect to variation in component values and its effect on amplitude and phase of magnet current, and the ac component reflected in the magnet current due to presence of ac and dc input source ripple is documented in detail. Design of a parallel , continuous ac excited resonant network for the QF2 magnet for the proposed 1 GeV Rapid Cycling Synchrotron is presented.  
 
THPMA102 The Proton and Ion Linear Accelerator ILU-9 ion, acceleration, cathode, feedback 788
 
  • A. A. Bryazgin, V. Auslender, V. G. Cheskidov, B. L. Faktorovich, E. Konstantinov, A. D. Panfilov
    BINP SB RAS, Novosibirsk
  The pulse RF ion linear accelerator of ILU-9-type is described. The accelerator is intended to use for various radiation-technological processes and investigations. The main parameters of the accelerator are: energy of accelerated protons 2.9 or 5 (with additional accelerating section) MeV, energy of accelerated deutons 5.8 or 10 MeV, average current of accelerated ions up to 100 μA. Pulse operating mode as following: pulse duration-500 s, maximum pulse repetition- 50 Hz. The frequency of accelerator resonator is 43 MHz. Also data of carbon ions C12+4 acceleration probability are given.  
 
THPMA104 RF activities of ACCEL Instruments in Asia-Pacific linac, booster, site, synchrotron 791
 
  • M. Pekeler, K. Dunkel, M. Peiniger, C. Piel, H. Vogel, P. vom Stein
    ACCEL, Bergisch Gladbach
  Since the foundation of ACCEL Instruments, Asia-Pacific has been an important market for RF, magnet and x-ray beam line devices. For the RF activities, pioneering work was done for JAERI, where complete superconducting rf modules where designed, built, tested and delivered. An important step for industrialisation of superconducting rf modules was done, when NSRRC decided in 2000 as the first Light Source, to contract turn key superconducting 500 MHz modules of the Cornell design to ACCEL. Similar modules have been delivered in the meantime to CLS, Cornell and DLS and three more will be delivered to SSRF in Shanghai next year. Peking University is planning to use a Rossendorf design superconducting rf module housing two 1.3 GHz TESLA cavities for the operation of their FEL project. On the normalconducting rf systems, a complete 3 GHz, 100 MeV linac has been delivered to ASP together with the 500 MHz booster cavities and the LLRF system. Booster cavities and LLRF system will be also delivered for SSRF. For SOREQ in Israel, ACCEL is developing a complete superconducting 40 MeV proton/detueron linac. The first stage of this linac is currently under delivery and installation.  
 
THPMA111 Target Assembly Design and Neutronics Study for Indian Spallation Neutron Source Using NMTC/JAM Code target, injection, synchrotron, ion 797
 
  • V. K. Senecha, M. Kawai
    KEK, Ibaraki
  Target-moderator-reflector assembly (TMRA) design studies for the best neutronics performance of the proposed Indian Spallation Neutron Source(ISNS) have been carried out using high energy particle transport code NMTC/JAM. The issues relevant for TMRA design like selection of target material, effect of target shape and dimensions and placement of moderator, suitable material for reflector its size have been addressed using the code calculations. NMTC/JAM code calculations have shown that the neutron yield per proton for thick Pb target for varying target lengths are in good agreement within the error limit with the results reported by experimental group and matching with the results of JAERI code calculations (JAERI 'Data/code 2001-07). Different geometrical configurations for TMRA were attempted and resulted tally's for track-length, surface crossing, nuclide yield, heat deposition, and time tallies for the neutron have been calculated. It has been observed that wing type structure of moderator position with respect to the target is suitable for optimum neutron yield in the pulsed mode.

(1) NMTC/JAM, JAERI code 2001-007, Koji Niita et al.(2001).(2)Development of target for KENS, M. Kawai et al. Procd. 2nd Workshop on Materials Tech. for spallation neutron source,141(2001).

 
 
THPMA115 Present Status of the FFAG Accelerator Complex in KURRI for ADS Study booster, acceleration, ion, extraction 803
 
  • M. Tanigaki, M. Inoue, K. Mishima, Y. Mori, S. Shiroya
    KURRI, Osaka
  • S. Fukumoto, Y. Ishi
    Mitsubishi Electric Corp, Energy & Public Infrastructure Systems Center, Kobe
  • S. Machida
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  KART (Kumatori Accelerator driven Reactor Test) project has started at Kyoto University Research Reactor Institute (KURRI) from the fiscal year of 2002. The purpose of this project is to demonstrate the basic feasibility of ADS, studying the effect of incident neutron energy on the effective multiplication factor of the subcritical nuclear fuel system. The proton FFAG accelerator complex as a neutron production driver for this project is now in the final stage of the test operation. The first ADS experiment will be held in this autumn by combining this FFAG complex with our Kyoto University Critical Assembly (KUCA) in KURRI. The developments and the current status of this FFAG accelerator complex, including the current status of this project, will be presented.  
 
THPMA121 Accelerator Based Applications At BARC-TIFR Pelletron Accelerator Facility ion, heavy-ion, vacuum, radiation 812
 
  • P. V. Bhagwat, R. K. Choudhury, J. A. Gore, A. K. Gupta, S. Kailas, N. Mehrotra, j.p. Nair, S. C. Sharma, P. Surendran
    BARC, Mumbai
  • M. B. Kurup
    TIFR, Mumbai
  • V. C. Sahni
    RRCAT, Indore (M. P.)
  The 14 UD Pelletron Accelerator, set up as a collaborative effort between Bhabha Atomic Research Centre and Tata Institute of Fundamental Research, has been operational since it’s inception in 1989. Apart from basic research, various accelerator based programmes including accelerator mass spectrometry, production of track-etch membranes, production of radio isotopes, irradiation damage studies are being pursued. This contribution will describe the details of currently ongoing programmes.  
 
FRYMA01 Experiences With The Hera Lepton-Proton Collider luminosity, lepton, electron, resonance 842
 
  • F. J. Willeke
    DESY, Hamburg
  A review of the experience of operating the HERA lepton proton collider with a high luminosity of up to 5∙1031cm-2s-1, a discussion of the important accelerator physics issues and a summary of the most important physics results of the lepton-hadron (ep) collider HERA is presented.  
 
FRAMA01 The Accelerator Activities of the EUROTRANS Programme linac, target, controls, rfq 852
 
  • P. Pierini
    INFN/LASA, Segrate (MI)
  The objective of the EC Integrated Project EUROTRANS is the design and feasibility assessment of an industrial accelerator driven system prototype dedicated to the transmutation of high level waste from nuclear power plants. A part of the program is dedicated to the further development of the high power proton accelerator needed for both the short term experimental demonstrator systems and the long term large scale industrial realizations. In particular the accelerator program addresses the issues of the qualification of the beam reliability with respect to the spallation target requirements, the development of the beam transport line to the subcritical reactor, and the demonstration of the key prototypical components of the proposed linear accelerator. This communication will present an overview and status of the accelerator activities carried out by the partners of the EUROTRANS project.

* On behalf of the Working Package 1.3 (Accelerator) of the EUROTRANS program

 
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