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ACCELERATOR COMPLEX U70 OF IHEP-PROTVINO: STATUS AND UPGRADE PLANS |
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S. Ivanovª, on behalf of the U70 staff Institute of High Energy Physics, Protvino, Russia Abstract Accelerator complex U70 of IHEP-Protvino now com-prises four machines cascaded plus one operated in a stand-alone mode. These are 30 MeV RFQ DTL proton linac URAL30 – the standard proton injector, Alvarez DTL linac I100 – the 16.7 MeV/nucleon light-ion and/or backup 72.7 MeV proton injector, the 6.9 T∙m rapid cy-cled booster synchrotron U1.5, and the 233 T∙m main ring synchrotron U70 proper. The new 30 MeV proton linac URAL30M, the would-be modernized successor to the URAL30, is being pre-commissioned on a separate tech-nical site. This report outlines current status of the entire accelerator complex and ongoing upgrade activity which is aimed at improving proton beam quality and step-by-step accomplishing the program to accelerate light-ion beams for applied and fundamental research. ª – corresponding author |
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HEAVY ION CYCLOTRONS OF FLNR JINR – STATUS AND PLANS |
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B.N. Gikalª Joint Institute for Nuclear Research, Dubna, Russia Abstract Presently Flerov Laboratory of Nuclear Reactions of Joint Institute for Nuclear Research has four cyclotrons of heavy ions, U-400, U-400M, U-200, IC-100, which provide performance of the basic and applied researches. Total operating time of cyclotrons is about 8000 hours. The intensive beams of 48Ca ions on the cyclotron U-400 have provided performance of the program on synthesis of a number of new isotopes of the superheavy elements. The Tritium beam with the energy of 19 MeV/nucleon and intensity of 109 pps was accelerated on the cyclotrons U-400. The beams of 6He (28 MeV/nucleon) and 8He (25 MeV/nucleon) 104 pps respectively were received in flight ×105 pps and 3× with intensity 3 method using a thin Beryllium production target in the separation channel. The realization of the project DRIBs (Dubna Radioactive Ion Beams) based on ISOL scheme is completed at the Laboratory. It will allow increasing the intensity of the6He and 8He beams up to 1010 pps and 108 pps respectively. The first physical experiment is being planned to carry out by the end of this year. Last years the modernization of IC-100 cyclotron was carried out. The task of modernization is acceleration of an intensive beam of Kr with energy about 1.2 MeV/nucleon that will be used for irradiation of deferent polymer materials. FLNR works on creation of the cyclotron DC-72 for Slovak cyclotron center in Bratislava are being conducted. The accelerator is developed for acceleration of protons with energy up to 72 MeV and heavy ions with energy from 3.5 up to 18 MeV/nucl. The first beam is being planned to obtain in 2005. Flerov Laboratory of Nuclear Reactions in collaboration with Nuclear physics Institute (Almaty) the cyclotron DC-60 for applied researches has been developed for the Research Center at L.N. Gumilev Euroasia State University in Astana (Kazakhstan). The cyclotron is capable to accelerate ions from Carbon to Xenon with energies 0.35÷1.67 MeV/nucl. ª – corresponding author |
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Contribution not received |
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ITEP-TWAC STATUS REPORT |
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N.N. Alexeevª, P.N. Alekseev, A.N. Balabaev, V.I. Nikolaev, V.A. Schegolev, B.Ju. Sharkov, A.V. Shumshurov, V.P. Zavodov, Yu.A. Satov Alikhanov Institute for Theoretical and Experimental Physics, Moscow, Russia Abstract The ITEP-TWAC facility is in operation of 4000 hours per year with proton and heavy ion beams in several modes of acceleration and accumulation. The new configuration of laser ion source with 100 J CO2-laser has been started to use for Fe-ion beam generation at the input of the pre-injector U-3 delivering separated species of Fe16+ ions with energy of 1.1 MeV/u to booster synchrotron UK for acceleration up to the energy of 165 MeV/u and accumulation in the storage ring U-10 using multiple charge exchange injection technique. Some progress is achieved also in extension of experimental area and multi-purpose utilizing of machine to be used in a time sharing mode and running in parallel of several experiments and routine operation with various beams for a number of users. The machine status analysis and current results of activities aiming at both subsequent improvement of beam parameters and extending beam applications are presented. ª – corresponding author |
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OPERATION AND RESEARCH ACTIVITIES AT THE INR ACCELERATOR COMPLEX |
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L. Kravchukª Institute for Nuclear Research of Russian Academy of Sciences, Moscow, Russia Abstract The INR Accelerator Complex based on the high-intensity proton linear accelerator is under operation. Status of the Linac and main user facilities is given in the paper. Participation of the INR accelerator team in some international collaborations for particle accelerator research, development and construction is briefly described. ª – corresponding author |
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THE ACCELERATOR FACILITIES OF THE NATIONAL RESEARCH FOUNDATION IN SOUTH AFRICA |
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J.L. Conradieª The iThemba Laboratory for Accelerator-Based Sciences, Somerset West, South Africa Abstract iThemba L(aboratory) for A(ccelerator) B(ased) S(ciences) operates three cyclotrons and a 5.5 MV Van de Graaff accelerator at Faure, near Cape Town, as well as an EN Tandem accelerator in Johannesburg. During recent years extensive development work has been carried out on these machines to improve the intensity, quality and variety of the beams for basic and applied research, particle therapy and radioisotope production. The main characteristics of the accelerators are reviewed. New developments and the resulting improvements in the beam characteristics and operation of the accelerators are discussed. ª – corresponding author |
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