Keyword: ion-source
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TUPSA17 Axial Injection to a Compact Cyclotron with High Magnetic Field cyclotron, injection, ion, simulation 75
 
  • V.L. Smirnov, S.B. Vorozhtsov
    JINR/DLNP, Dubna, Moscow region, Russia
  
  One of ad­van­tages of a com­pact cy­clotron over other type ac­cel­er­a­tors is a small size mainly de­fined by the fa­cil­ity’s bend­ing mag­netic field. In such cy­clotrons an ap­pli­ca­tion of an ex­ter­nal in­jec­tion is re­quired in some cases. But for high mag­netic field of the cy­clotrons (over 4-5 T) there ap­pears a se­vere prob­lem to make the 1st turns in the ma­chine with ex­ter­nal in­jec­tion of ac­cel­er­ated par­ti­cles. This paper de­scribes a pro­posal of a new cen­tral re­gion struc­ture of a com­pact cy­clotron that per­mits one to suc­cess­fully solve the prob­lem of the axial in­jec­tion into such a fa­cil­ity using a spi­ral in­flec­tor.  
 
TUPSA28 The Advanced Nanostructure Steel Modification by Gas Ions Beams ion, experiment, power-supply, operation 97
 
  • S.L. Andrianov, B.B. Chalykh, P.A. Fedin, B. Kondratiev, A.V. Kozlov, R.P. Kuibeda, T. Kulevoy, A.A. Nikitin, S.V. Rogozhkin, A. Sitnikov
    ITEP, Moscow, Russia
  
  New con­stric­tion ma­te­ri­als are under de­vel­op­ing for the en­ergy sec­tor. They will pro­vide: en­ergy pro­dac­tion, store and trans­porta­tion with high ef­fi­ciency and ecol­ogy safety. One of the main mod­ern di­rec­tion of new ma­te­ri­als de­vel­op­ing are nanos­truc­tures steel which con­sol­i­da­tion oxide dis­per­sion strength­ened (ODS). ODS and EK-181 steels have high hot, ra­di­a­tion and cor­ro­sion re­sis­tance. The ex­per­i­men­tal pro­gram for in­ves­ti­ga­tion of nan­oclus­ters gen­er­a­tion and growth (in ODS steels) under ir­ra­di­a­tion of N (and also Ti, V) ion beams is on­go­ing in ITEP. Ion ir­ra­di­a­tion is per­formed at the ac­cel­er­a­tor com­plex TIPr with gas ion source– duo­plas­ma­tron. In this ar­ti­cle the source in­stal­la­tion and it's power sys­tems de­vel­op­ment of, as well as the re­sults of ion beam charge state dis­tri­b­u­tion mea­sure­ments and the first re­sults of ODS ma­te­ri­als ir­ra­di­a­tion by gas ions are de­scribed and dis­cussed.  
 
WEX01 Development of Accelerator Facilities at FSUE SSC RF – IPPE ion, tandem-accelerator, high-voltage, heavy-ion 120
 
  • V. Romanov, S.V. Bazhal, K.A. Řežvykh
    IPPE, Obninsk, Russia
  
  There is a short overview and per­formed work of FSUE "SSC RF – IPPE" ac­cel­er­a­tor fa­cil­i­ties pre­sented in this paper. This work is re­viewed in terms of ap­pli­ca­tion in nu­clear sci­ence and tech­nol­ogy. There are some of re­ceived re­sults and prospect of ac­cel­er­a­tor fa­cil­i­ties de­vel­op­ment de­scribed.  
slides icon Slides WEX01 [0.976 MB]  
 
WECA05 Operation and Development of the BINP AMS Facility ion, background, detector, controls 134
 
  • S. Rastigeev, A.R. Frolov, A.D. Goncharov, V. Klyuev, E.S. Konstantinov, V.V. Parkhomchuk, A.V. Petrozhitskii
    BINP SB RAS, Novosibirsk, Russia
  • L.A. Kutnykova
    Institute of Archaeology and Ethnography, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
  
  The BINP AMS fa­cil­ity is the ac­cel­er­a­tor com­plex for ac­cel­er­a­tor mass spec­trom­e­try. The most dis­tin­guish­ing fea­tures of BINP AMS is the use of the mid­dle en­ergy sep­a­ra­tor of ion beams, the mag­ne­sium va­pors tar­get as a strip­per and time-of-flight tele­scope for ac­cu­rate ion se­lec­tion. Pre­sent sta­tus and de­vel­op­ment of AMS com­plex for ex­ten­sion of ap­pli­ca­tions are re­viewed.  
slides icon Slides WECA05 [1.129 MB]  
 
WECA09 Dedicated DC-110 Heavy Ion Cyclotron for Industrial Production of Track Membranes ion, cyclotron, acceleration, heavy-ion 146
 
  • B. Gikal, P.Yu. Apel, S.L. Bogomolov, O.N. Borisov, V.A. Buzmakov, S.N. Dmitriev, A.A. Efremov, A.A. Fateev, G.G. Gulbekyan, I.A. Ivanenko, G.N. Ivanov, I.V. Kalagin, V.I. Kazacha, N.Yu. Kazarinov, M.V. Khabarov, I.V. Kolesov, V.A. Kostyrev, A.M. Lomovcev, V.N. Melnikov, V.I. Mironov, N.F. Osipov, S.V. Pashchenko, O.V. Semchenkova, V.A. Sokolov, A. Tikhomirov, V.A. Verevochkin
    JINR, Dubna, Moscow Region, Russia
  
  In the Lab­o­ra­tory of nu­clear re­ac­tions JINR ded­i­cated ac­cel­er­a­tor com­plex on the basis of the heavy ion cy­clotron DC110 for the in­dus­trial track mem­brane pro­duc­tion has been de­vel­oped and cre­ated. The isochro­nous cy­clotron DC110 ac­cel­er­ates the ions Ar, Kr and Xe with a fixed en­ergy of 2.5 MeV/nu­cleon and in­ten­sity of 10-15 mkA. The cy­clotron is equipped with ECR ion source - DE­CRIS-5 (18 GHz) and axial in­jec­tion sys­tem. The pole di­am­e­ter of the mag­net is 2 m. Isochro­nous mag­netic field formed by shim­ming sec­tors on the level of 1.67 T. Ac­cel­er­ated ions 40Ar6+, 86Kr13+, 132Xe20+ have close mass-to-charge ratio, which al­lows chang­ing par­ti­cles with­out chang­ing the op­er­a­tion mode of the cy­clotron. Ac­cel­er­a­tor com­plex DC-10 is ca­pa­ble of pro­duc­ing up to 2 mil­lion square me­ters of track mem­branes per the year.  
slides icon Slides WECA09 [1.603 MB]  
 
WEPSB17 Development of the Injector for Vacuum Insulated Tandem Accelerator ion, vacuum, neutron, acceleration 191
 
  • A.S. Kuznetsov, A.A. Alexander, M.A. Tiunov
    BINP SB RAS, Novosibirsk, Russia
  • D.A. Kasatov, A.M. Koshkarev
    NSU, Novosibirsk, Russia
  
  The Vac­uum In­su­lated Tan­dem Ac­cel­er­a­tor is built at the Bud­ker In­sti­tute of Nu­clear Physics.* The ac­cel­er­a­tor is de­signed for de­vel­op­ment of the con­cept of ac­cel­er­a­tor-based boron neu­tron cap­ture ther­apy of ma­lig­nant tu­mors in the clinic.** In the ac­cel­er­a­tor the neg­a­tive hy­dro­gen ions are ac­cel­er­ated by the high volt­age elec­trode po­ten­tial to the half of re­quired en­ergy, and after con­ver­sion of the ions into pro­tons by means of a gas strip­ping tar­get the pro­tons are ac­cel­er­ated again by the same po­ten­tial to the full beam en­ergy. A num­ber of in­no­v­a­tive ideas posited in the de­sign make it pos­si­ble to ac­cel­er­ate in­tense beams in a com­pact ac­cel­er­a­tor. Num­ber of in­ves­ti­ga­tions re­vealed weak points of the ac­cel­er­a­tor in­jec­tor: un­nec­es­sary beam strip­ping by the resid­ual gas and com­plex­ity to im­prove the vac­uum con­di­tions, the in­flu­ence of the strip­ping gas to the ion source op­er­a­tion sta­bil­ity. To en­sure the beam pa­ra­me­ters and re­li­a­bil­ity of the fa­cil­ity op­er­a­tion re­quired for clin­i­cal ap­pli­ca­tions, the new in­jec­tor is de­signed based on the ion source with a cur­rent up to 15 mA, pro­vid­ing the pos­si­bil­ity of pre­lim­i­nary beam ac­cel­er­a­tion upto 120-200 keV. The paper pre­sents the de­sign of the in­jec­tor and the re­sults of cal­cu­la­tions per­formed.
*Aleynik V., Bashkirtsev A., et al. Applied Radiation and Isotopes 88 (2014) 177-179.
**Bayanov B., Belov V., et al. Nuclear Instr. and Methods in Physics Research A 413/2-3 (1998) 397-426. 		 
 
WEPSB26 Study of Possibility of Industrial Application of Ion Injector I-3 ion, target, simulation, laser 217
 
  • P.N. Alekseev
    ITEP, Moscow, Russia
  
  Ions in­jec­tor I-3 of the ITEP-TWAC ac­cel­er­a­tor com­plex con­sists of a buncher, two-gap ac­cel­er­at­ing cav­ity and a beam trans­port line. Laser ion source is used to gen­er­ate ions for the in­jec­tor. Pos­si­bil­ity of ap­pli­ca­tion of the in­jec­tor to dope semi­con­duc­tor ma­te­ri­als with vari­able en­ergy ions is con­sid­ered. Re­sults of beam pa­ra­me­ters op­ti­miza­tion by nu­mer­i­cal sim­u­la­tion to pro­duce uni­form dis­tri­b­u­tion of par­ti­cles den­sity and re­quired en­ergy spread on the tar­get are pre­sented.  
 
THPSC08 The Project of the HV Axial Injection for the DC-280 Cyclotron at the FLNR JINR ion, ECR, cyclotron, injection 333
 
  • G.G. Gulbekyan, V. Bekhterev, S.L. Bogomolov, A.A. Efremov, B. Gikal, I.A. Ivanenko, I.V. Kalagin, N.Yu. Kazarinov, M.V. Khabarov, V.N. Melnikov, N.F. Osipov, S.V. Prokhorov, A. Tikhomirov
    JINR, Dubna, Moscow Region, Russia
  
  The pro­ject of the high-volt­age (HV) axial in­jec­tion for the DC-280 cy­clotron which is being cre­ated at the FLNR JINR is pre­sented. The in­jec­tion sys­tem will con­sists of a Per­ma­nent Mag­net ECR ion source and a Su­per­con­duct­ing ECR ion source, beam an­a­lyz­ing mag­nets, fo­cus­ing so­le­noids, beam chop­pers, a poly­har­monic buncher, 75 kV DC ac­cel­er­at­ing tubes, a com­mu­tat­ing elec­tro­sta­tic de­flec­tor and a spi­ral in­flec­tor. One part of the in­jec­tion sys­tem is sit­u­ated on the HV plat­form, an­other part is on the grounded yoke of the DC-280 mag­net. The in­jec­tion sys­tem will allow one to in­ject ef­fi­ciently ions of el­e­ments from He­lium to Ura­nium with the atomic mass to charge ratio in the range of 4-7.5 pro­vid­ing ac­cel­er­a­tion of ion cur­rents with in­ten­sity more than 10 pmkA.  
 
THPSC28 Development of Automation System of the Ion Source controls, PLC, experiment, ion 380
 
  • A.M. Koshkarev, Y.I. Belchenko, A.N. Kvashnin, A.L. Sanin, P.V. Zubarev
    BINP SB RAS, Novosibirsk, Russia
  
  To op­er­ate a source of neg­a­tive hy­dro­gen ions an au­to­matic dis­trib­uted con­trol sys­tem was de­vel­oped. This sys­tem con­sists of mas­ter con­troller (Slab C8051F120) and a set of pe­riph­eral local con­trollers (PLC) based on mi­cro­con­troller Slab C8051F350. Using an op­ti­cal link be­tween PLC and mas­ter con­troller there was cre­ated a sys­tem re­sis­tant to high-volt­age break­downs of the ion source. To con­trol the sys­tem, a spe­cial pro­gram­ming lan­guage has been cre­ated. It in­cludes pro­ce­dures for check­ing the nec­es­sary pa­ra­me­ters, set­ting the value of the phys­i­cal quan­ti­ties to sim­plify the ex­per­i­ment, ver­i­fy­ing the lock sta­tus and pro­tec­tion. This sys­tem pro­vides two pro­gram­ma­ble timers, as well as pro­ce­dures in emer­gency sit­u­a­tions, such as: lack of water, poor vac­uum. It can be op­er­ated in semi-au­to­matic mode: the script asks op­er­a­tor about prefer­able ac­tions and then it con­tin­ues ac­tions de­pend­ing on the re­sponse. All scripts are per­formed by mas­ter con­troller, and this makes sys­tem very rapid (for ex­am­ple sys­tem re­sponse time is 1 ms).  
 
THPSC44 Development of Remote Control System for H-minus Ions Source of INR LINAC ion, controls, linac, H-minus 423
 
  • V.S. Klenov, Yu.V. Kiselev, O. Volodkevich, V. Zubets
    RAS/INR, Moscow, Russia
  
  A sys­tem of re­mote con­trol of sur­face –plasma source of neg­a­tive ions for INR RAS LINAC was de­signed, con­structed and put into op­er­a­tion. The INR LINAC neg­a­tive ions in­jec­tor is based on the ac­cel­er­at­ing tube at en­ergy of 400 keV and sur­face –plasma source of neg­a­tive ions. Gal­vanic iso­la­tion and spa­tial sep­a­ra­tion of el­e­ments that are at po­ten­tial 400 kV in the power rack of the ion source and the host com­puter are car­ried out by means of fiber-op­tic USB-in­ter­face ex­ten­der from firms Icron. A set of mul­ti­func­tional units from Na­tional In­stru­ments al­lows to mon­i­tor the os­cil­lo­scope sig­nals with up to 50 Ms/s and to con­trol the ions source power set­tings. The data ac­qui­si­tion de­vices pro­gram­ming per­formed in a Lab­View graph­i­cal en­vi­ron­ment. Al­go­rithm and Lab­Vew code for fast and safe "con­di­tion­ing" of the ion source dis­charge gap and ex­trac­tor gap from arc­ing and break­downs were de­vel­oped.  
 
THPSC47 Production of Metal Ion Beams from ECR Ion Sources by MIVOC Method ion, experiment, cyclotron, ECR 432
 
  • K.I. Kuzmenkov, S.L. Bogomolov, A.E. Bondarchenko, A.A. Efremov, N. Lebedev, K.V. Lebedev, V.Ya. Lebedev, V.N. Loginov, Yu. Yazvitsky
    JINR, Dubna, Moscow Region, Russia
  • Z. Asfari, B.J.P. Gall
    IPHC, Strasbourg Cedex 2, France
  
  Funding: Work supported by Russian Foundation for Basic Research under grant number 13-02-12011
The pro­duc­tion of metal ion beams with ECR ion sources using MIVOC method is de­scribed. The method is based on the use of metal com­pounds hav­ing a high vapor pres­sure at room tem­per­a­ture: for ex­am­ple, C2B10H12, Fe(C5H5)2 and sev­eral oth­ers. In­tense ion beams of B and Fe were pro­duced at the FLNR JINR cy­clotrons using this method. The main ef­forts were went into pro­duc­tion and ac­cel­er­a­tion of 50Ti ion beam at the U-400 cy­clotron. The ex­per­i­ments on pro­duc­tion of 50Ti ion beam were per­formed at the test bench with the nat­ural and en­riched com­pounds of ti­ta­nium (CH3)5C5Ti(CH3)3. In the ex­per­i­ments at the test bench the beam cur­rents of Ti5+ - 80 mkA and Ti11+ - 70 mkA were achieved at dif­fer­ent set­tings of the source. After suc­cess­ful tests two 3 weeks runs with Ti-50 beam were per­formed at the U-400 cy­clotron for the ex­per­i­ments on spec­troscopy of super heavy el­e­ments. The in­ten­sity of the in­jected beam of 50Ti5+ was about of 50-60 mkA, dur­ing ex­per­i­ment the source have shown sta­ble op­er­a­tion. The com­pound con­sump­tion rate was de­ter­mined to be about of 2.4 mg/h, cor­re­spond­ing to 50Ti con­sump­tion of 0.52 mg/h. 		 
 
THPSC55 Improvement of the Beam Transmission in the Central Region Of Warsaw U200P Cyclotron cyclotron, ion, injection, ECR 453
 
  • O. Steczkiewicz, J. Choinski, P. Gmaj
    HIL, Warsaw, Poland
  • V. Bekhterev, I.A. Ivanenko
    JINR, Dubna, Moscow Region, Russia
  
  To date, War­saw U200P cy­clotron ex­ploited a mir­ror in­flec­tor to feed heavy ions ex­tracted from ECR ion source (10 GHz, 11 kV) to the cen­tral re­gion of the cy­clotron. How­ever, in such con­fig­u­ra­tion very low trans­mis­sion was reach­able after many op­ti­miza­tions. Ad­di­tion­ally, the new ECR ion source (14,5 GHz, 14-24 kV) was in­stalled, which of­fers en­er­gies far ex­ceed­ing ca­pa­bil­i­ties of the cur­rently op­er­ated in­flec­tor and cen­tral re­gion. To avoid these ob­sta­cles, we have de­vel­oped a spi­ral in­flec­tor and re­designed cen­tral re­gion of the cy­clotron. It was a very chal­leng­ing task, bear­ing in mind lim­ited vol­ume of cen­tral re­gion in our com­pact ma­chine, to carve these el­e­ments suit­ably for de­cent ver­sa­til­ity of ion beams of­fered by War­saw cy­clotron. This pro­ject was ex­e­cuted in the col­lab­o­ra­tion with FLNR in Dubna, Rus­sia. The cy­clotron equipped with the new cen­tral re­gion works in the "con­stant orbit" regime. Here we pre­sent the re­sults of both com­pu­ta­tional sim­u­la­tions and mea­sure­ments of the beam trans­mis­sion in up­graded cen­tral re­gion.  
 
FRCA02 Time Dependence of Ion Beam Transverse Phase-Space Portrait Orientation During Linac Proton Injector Pulse ion, high-voltage, proton, focusing 459
 
  • O.T. Frolov, A. Belov, S.E. Golubovskiy, E.S. Nikulin, V. Zubets
    RAS/INR, Moscow, Russia
  
  As a re­sult of analy­sis con­ducted a tran­sients of the 400 kV col­umn in­ter­me­di­ate elec­trode po­ten­tial have been de­ter­mined as one of the main processes re­spon­si­ble for change of beam phase-space por­trait ori­en­ta­tion dur­ing 200 mks, 50 Hz pro­ton in­jec­tor high volt­age ac­cel­er­at­ing pulse. Beam trans­port sim­u­la­tion shows high sen­si­tiv­ity of the beam phase-space por­trait ori­en­ta­tion to vari­a­tion of the in­ter­me­di­ate elec­trode po­ten­tial. It has been found that sig­nif­i­cant vari­a­tion of this po­ten­tial takes place due to tran­si­tion process dur­ing a pulse in the ca­pac­i­tor-re­sis­tor volt­age water di­vider of the ac­cel­er­at­ing tube. The di­vider ca­pac­i­ties match­ing pro­ce­dure has been per­formed. The beam emit­tance mea­sure­ments re­sults have shown that within the ac­cu­racy of ob­ser­va­tion the beam trans­verse phase-space por­trait ori­en­ta­tion re­mains con­stant dur­ing in­jec­tor pulse with the ac­cel­er­at­ing tube volt­age di­vider being com­pen­sated.  
slides icon Slides FRCA02 [0.824 MB]