Author: Gettmann, V.
Paper Title Page
TU2A01 First Acceleration of Heavy Ion Beams with a Superconducting Continuous Wave HIM/GSI CW-linac 297
 
  • W.A. Barth, K. Aulenbacher, F.D. Dziuba, V. Gettmann, T. Kürzeder, M. Miski-Oglu
    HIM, Mainz, Germany
  • K. Aulenbacher
    IKP, Mainz, Germany
  • W.A. Barth, M. Heilmann, A. Rubin, A. Schnase, S. Yaramyshev
    GSI, Darmstadt, Germany
  • M. Basten, M. Busch, H. Podlech, M. Schwarz
    IAP, Frankfurt am Main, Germany
  
  First ac­cel­er­a­tion of heavy ion beams with a su­per­con­duct­ing con­tin­u­ous wave HIM/GSI CW-Linac After suc­cess­ful RF-test­ing of a new su­per­con­duct­ing Linac RF-cav­ity at GSI Helmholtzzen­trum für Schw­e­ri­o­nen­forschung and a short com­mis­sion­ing and ramp up time of some days, this 15-gaps Cross­bar H-cav­ity ac­cel­er­ated first time heavy ion beams with full trans­mis­sion up to the de­sign beam en­ergy. The de­sign ac­cel­er­a­tion gain of 3.5 MV in­side a length of less than 70 cm has been ver­i­fied with heavy ion beam of up to 1.5 par­ti­cle mkA. The mea­sured beam pa­ra­me­ters show a nice beam qual­ity. The ma­chine com­mis­sion­ing with beam is a mile­stone of the R&D work of Helmholtz In­sti­tute Mainz and GSI in col­lab­o­ra­tion with Goethe Uni­ver­sity Frank­furt in de­vel­op­ment of the su­per­con­duct­ing heavy ion con­tin­u­ous wave lin­ear ac­cel­er­a­tor CW-Linac.  
slides icon Slides TU2A01 [3.385 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-TU2A01  
About • paper received ※ 11 September 2018       paper accepted ※ 20 September 2018       issue date ※ 18 January 2019  
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TUPO084 Beam Dynamics Simulations for the New Superconducting CW Heavy Ion LINAC at GSI 525
SPWR034   use link to see paper's listing under its alternate paper code  
 
  • M. Schwarz, M. Basten, M. Busch, H. Podlech
    IAP, Frankfurt am Main, Germany
  • K. Aulenbacher
    IKP, Mainz, Germany
  • K. Aulenbacher, W.A. Barth, F.D. Dziuba, V. Gettmann, T. Kürzeder, M. Miski-Oglu
    HIM, Mainz, Germany
  • W.A. Barth, M. Heilmann, A. Rubin, A. Schnase, S. Yaramyshev
    GSI, Darmstadt, Germany
  
  Funding: Work supported by BMBF contr. No. 05P15RFRBA, EU Framework Programme H2020 662186 (MYRTE) and HIC for FAIR
For fu­ture ex­per­i­ments with heavy ions near the coulomb bar­rier within the su­per-heavy el­e­ment (SHE) re­search pro­ject a multi-stage R&D pro­gram of GSI/HIM and IAP is cur­rently in progress. It aims for de­vel­op­ing a su­per­con-duct­ing (sc) con­tin­u­ous wave (CW) LINAC with mul­ti­ple CH cav­i­ties as key com­po­nents down­stream the High Charge State In­jec­tor (HLI) at GSI. The LINAC de­sign is chal­leng­ing due to the re­quire­ment of in­tense beams in CW mode up to a mass-to-charge ratio of 6, while cov­er­ing a broad out­put en­ergy range from 3.5 to 7.3 MeV/u with un­changed min­i­mum en­ergy spread. Test­ing of the first CH-cav­ity in 2016 demon­strated a promis­ing max­i­mum ac­cel­er­at­ing gra­di­ent of Ea = 9.6 MV/m; the world­wide first beam test with this sc multi-gap CH-cav­ity in 2017 was a mile­stone in the R&D work of GSI/HIM and IAP. In the light of ex­pe­ri­ence gained in this re­search so far, the beam dy­nam­ics lay­out for the en­tire LINAC has re­cently been up­dated and op­ti­mized. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-TUPO084  
About • paper received ※ 12 September 2018       paper accepted ※ 20 September 2018       issue date ※ 18 January 2019  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THPO072 Cryogenic Tests of the Superconducting β=0.069 CH-cavities for the HELIAC-project 855
SPWR010   use link to see paper's listing under its alternate paper code  
 
  • M. Basten, M. Busch, H. Podlech, M. Schwarz
    IAP, Frankfurt am Main, Germany
  • K. Aulenbacher, W.A. Barth, F.D. Dziuba, V. Gettmann, T. Kürzeder, M. Miski-Oglu
    HIM, Mainz, Germany
  • W.A. Barth, M. Heilmann, S. Yaramyshev
    GSI, Darmstadt, Germany
  
  In the fu­ture the ex­ist­ing UNI­LAC (UNI­ver­sal Lin­ear Ac­cel­er­a­tor) at GSI will be most ex­clu­sively used as an in­jec­tor for FAIR to pro­vide short pulse high in­ten­sity heavy ion beams at low rep­e­ti­tion rates [Barth3]. A new su­per­con­duct­ing (sc) con­tin­u­ous wave (cw) high in­ten­sity heavy ion Linac should pro­vide ion beams with max. duty fac­tor above the coulomb bar­rier for the Super Heavy El­e­ment (SHE) pro­gram at GSI. The fun­da­men­tal Linac de­sign com­prises a low en­ergy beam trans­port (LEBT)-sec­tion fol­lowed by a sc Drift Tube Linac (DTL) con­sist­ing of sc Cross­bar-H-mode (CH) struc­tures for ac­cel­er­a­tion up to 7.3 MeV/u [*]. After the suc­cess­ful test and com­mis­sion­ing of the first demon­stra­tor sec­tion with heavy ion beam from the HLI in 2017 [**], the next two sc CH-struc­tures have been con­structed and the first one has been ex­ten­sively tested at cryo­genic tem­per­a­tures at the In­sti­tute for Ap­plied Physics (IAP) at Goethe Uni­ver­sity Frank­furt (GUF). The re­sults of the final cold test of the first CH-struc­ture as well as the next steps re­al­iz­ing a new sc cw heavy ion LINAC at GSI will be pre­sented.
[*]W. Barth et al., "Further investigations for a superconducting cw-Linac at GSI"
[**]W. Barth et al., "First high intensity heavy ion beam tests with a superconducting multi gap CH-cavity"
 		 
poster icon Poster THPO072 [1.150 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-THPO072  
About • paper received ※ 11 September 2018       paper accepted ※ 20 September 2018       issue date ※ 18 January 2019  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THPO073 RF Commissioning of the Superconducting 217 MHz CH Cavity for Heavy Ions and First Beam Operation 859
 
  • F.D. Dziuba, K. Aulenbacher, W.A. Barth, V. Gettmann, T. Kürzeder, M. Miski-Oglu
    HIM, Mainz, Germany
  • K. Aulenbacher
    IKP, Mainz, Germany
  • W.A. Barth, M. Heilmann, J. Salvatore, A. Schnase, S. Yaramyshev
    GSI, Darmstadt, Germany
  • M. Basten, M. Busch, H. Podlech, M. Schwarz
    IAP, Frankfurt am Main, Germany
  
  Fu­ture re­search pro­grams at GSI in the field super heavy el­e­ment (SHE) syn­the­sis re­quire high in­tense heavy ion beams above the coulomb bar­rier and high av­er­age par­ti­cle cur­rents. The up­com­ing de­mands ex­ceed the tech­ni­cal op­por­tu­ni­ties of the ex­ist­ing UNI­ver­sal Lin­ear AC­cel­er­a­tor (UNI­LAC). Con­se­quently, a new ded­i­cated su­per­con­duct­ing (sc) con­tin­u­ous wave (cw) linac is cru­cial to keep the SHE re­search pro­gram at GSI com­pet­i­tive on a high level. Re­cently the first linac sec­tion, serv­ing as a pro­to­type to demon­strate the re­li­able op­er­abil­ity of 217 MHz multi gap cross­bar-H-mode (CH) cav­i­ties under a re­al­is­tic ac­cel­er­a­tor en­vi­ron­ment, has been ex­ten­sively tested with a heavy ion beam de­liv­ered from the GSI High Charge State In­jec­tor (HLI). Ful­fill­ing its role as a key com­po­nent of the whole demon­stra­tor setup. The first sc 217 MHz CH cav­ity (CH0) suc­cess­fully ac­cel­er­ated heavy ions up to the de­sign beam en­ergy and even be­yond at high beam in­ten­si­ties and full trans­mis­sion. In this con­tri­bu­tion the rf com­mis­sion­ing and the first beam op­er­a­tion of the cav­ity is pre­sented.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-THPO073  
About • paper received ※ 12 September 2018       paper accepted ※ 20 September 2018       issue date ※ 18 January 2019  
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THPO107 High Power Coupler R&D for Superconducting CH-cavities 920
SPWR025   use link to see paper's listing under its alternate paper code  
 
  • J. List, K. Aulenbacher, W.A. Barth, F.D. Dziuba, V. Gettmann, T. Kürzeder, M. Miski-Oglu
    HIM, Mainz, Germany
  • K. Aulenbacher
    IKP, Mainz, Germany
  • W.A. Barth, M. Heilmann, J. Salvatore, A. Schnase, S. Yaramyshev
    GSI, Darmstadt, Germany
  • M. Basten, M. Busch, H. Podlech, M. Schwarz
    IAP, Frankfurt am Main, Germany
  
  The up­com­ing de­mands of the fu­ture re­search pro­grams at GSI ex­ceed the tech­ni­cal op­por­tu­ni­ties of the ex­ist­ing UNI­ver­sal Lin­ear AC­cel­er­a­tor (UNI­LAC). Be­sides, the ma­chine will be ex­clu­sively used as an in­jec­tor for FAIR (Fa­cil­ity for An­tipro­ton and Ion Re­search) pro­vid­ing high power heavy ion beams at a low rep­e­ti­tion rate for in­jec­tion into the syn­chro­tron. A new ded­i­cated su­per­con­duct­ing (sc) con­tin­u­ous wave (cw) Linac is cru­cial to keep the re­search pro­gram com­pet­i­tive. The first part of the cw-linac, com­pris­ing a 217 MHz multi gap Cross­bar-H-mode (CH) cav­ity sur­rounded by two sc so­le­noids in­side a cryo­stat, al­ready served as a pro­to­type demon­strat­ing re­li­able op­er­abil­ity in a re­al­is­tic ac­cel­er­a­tor en­vi­ron­ment. A suf­fi­cient high power RF-cou­pling con­cept is needed to feed this newly de­vel­oped cw-RF cav­ity with up to 5 kW of RF-power. A high power cou­pler test stand was re­cently built to pro­vide for a test­ing en­vi­ron­ment; fur­ther up­grade mea­sures of this test area are fore­seen. This con­tri­bu­tion deals with the re­cent cou­pler R&D for the demon­stra­tor set up. Be­sides sim­u­la­tions of ther­mal losses at the cou­pler (in­side the RF-cav­ity) will be shown as well.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-THPO107  
About • paper received ※ 12 September 2018       paper accepted ※ 19 September 2018       issue date ※ 18 January 2019  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)