Author: Trachanas, E.
Paper Title Page
MO1PA02 Beam Commissioning of Normal Conducting Part and Status of ESS Project 18
 
  • R. Miyamoto, C. Amstutz, S. Armanet, R.A. Baron, E.C. Bergman, A.K. Bhattacharyya, B.E. Bolling, W. Borg, S. Calic, M. Carroll, J. Cereijo García, J. Christensson, J.D. Christie, H. Danared, C.S. Derrez, E.M. Donegani, S. Ekström, M. Eriksson, M. Eshraqi, J.F. Esteban Müller, K. Falkland, A. Forsat, S. Gabourin, A. Garcia Sosa, A.A. Gorzawski, V. Grishin, P.O. Gustavsson, S. Haghtalab, V.A. Harahap, H. Hassanzadegan, W. Hees, J.J. Jamróz, A. Jansson, M. Jensen, B. Jones, M. Juni Ferreira, M. Kalafatic, I. Kittelmann, H. Kocevar, S. Kövecses de Carvalho, E. Laface, B. Lagoguez, Y. Levinsen, M. Lindroos, A. Lundmark, M. Mansouri, C. Marrelli, C.A. Martins, J.P.S. Martins, S. Micic, N. Milas, M. Mohammednezhad, R. Montaño, M. Muñoz, G. Mörk, D.J.P. Nicosia, B. Nilsson, D. Noll, A. Nordt, T. Olsson, L. Page, D. Paulic, S. Pavinato, A. Petrushenko, D.C. Plostinar, J. Riegert, A. Rizzo, K.E. Rosengren, K. Rosquist, M. Serluca, T.J. Shea, A. Simelio, S. Slettebak, H. Spoelstra, A.M. Svensson, L. Svensson, R. Tarkeshian, L. Tchelidze, C.A. Thomas, E. Trachanas, K. Vestin, R.H. Zeng, P.L. van Velze, N. Öst
    ESS, Lund, Sweden
  • C. Baltador, L. Bellan, M. Comunian, F. Grespan, A. Pisent
    INFN/LNL, Legnaro (PD), Italy
  • I. Bustinduy, A. Conde, D. Fernández-Cañoto, N. Garmendia, P.J. González, G. Harper, A. Kaftoosian, J. Martin, I. Mazkiaran, J.L. Muñoz, A.R. Páramo, S. Varnasseri, A.Z. Zugazaga
    ESS Bilbao, Derio, Spain
  • A.C. Chauveau, P. Hamel, O. Piquet
    CEA-IRFU, Gif-sur-Yvette, France
  
  The Eu­ro­pean Spal­la­tion Source, cur­rently under con­struc­tion in Lund Swe­den, will be a spal­la­tion neu­tron source dri­ven by a su­per­con­duct­ing pro­ton linac with a de­sign power of 5 MW. The linac fea­tures a high peak cur­rent of 62.5 mA and long pulse length of 2.86 ms with a rep­e­ti­tion rate of 14 Hz. The nor­mal con­duct­ing part of the linac has been un­der­go­ing beam com­mis­sion­ing in mul­ti­ple steps, and the main focus of the beam com­mis­sion­ing has been on bring­ing sys­tems into op­er­a­tion, in­clud­ing aux­il­iary ones. In 2022, beam was trans­ported to the end of the first tank of the five-tank drift tube linac. This paper pro­vides a sum­mary of the beam com­mis­sion­ing ac­tiv­i­ties at ESS and the cur­rent sta­tus of the linac.  
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slides icon Slides MO1PA02 [18.907 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-MO1PA02  
About • Received ※ 20 August 2022 — Revised ※ 27 August 2022 — Accepted ※ 01 September 2022 — Issue date ※ 21 September 2022
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TUPOJO09 High Power RF Conditioning of the ESS DTL1 356
 
  • F. Grespan, C. Baltador, L. Bellan, D. Bortolato, M. Comunian, E. Fagotti, M.G. Giacchini, M. Montis, A. Palmieri, A. Pisent
    INFN/LNL, Legnaro (PD), Italy
  • F. Grespan, B. Jones, L. Page, A.G. Sosa, E. Trachanas, R. Zeng
    ESS, Lund, Sweden
  • D.J.P. Nicosia
    CERN, Meyrin, Switzerland
  
  The first tank of Drift Tube Linac (DTL) for the Eu­ro­pean Spal­la­tion Source ERIC (ESS), de­liv­ered by INFN, has been in­stalled in the ESS tun­nel in Sum­mer 2021. The DTL-1 is de­signed to ac­cel­er­ate a 62.5 mA pro­ton beam from 3.62 MeV up to 21 MeV. It con­sists of 61 ac­cel­er­at­ing gaps, al­ter­nate with 60 drift tubes equipped with Per­ma­nent Mag­net Quadru­pole (PMQ) in a FODO lat­tice. The re­main­ing drift tubes are equipped with di­pole cor­rec­tors (steer­ers), beam po­si­tion mon­i­tors (BPMs) or empty. The total length of the cav­ity is 7.6 m and it is sta­bi­lized by post cou­plers. Two wave­guide cou­plers feed the DTL with the 2.2 MW of RF power re­quired for beam op­er­a­tion, equally di­vided by RF power losses and beam power. This paper first pre­sents the main sys­tems re­quired for the DTL con­di­tion­ing. Then it sum­ma­rizes the main steps and re­sults of this high power RF con­di­tion­ing done at ESS to pre­pare the DTL for the con­se­quent beam com­mis­sion­ing.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TUPOJO09  
About • Received ※ 15 August 2022 — Revised ※ 19 August 2022 — Accepted ※ 29 August 2022 — Issue date ※ 15 September 2022
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TUPOJO10 Hardware Commissioning With Beam at the European Spallation Source: Ion Source to DTL1 360
TUOPA01   use link to see paper's listing under its alternate paper code  
 
  • B. Jones, R.A. Baron, C.S. Derrez, F. Grespan, V. Grishin, Y. Levinsen, N. Milas, R. Miyamoto, D.J.P. Nicosia, D. Noll, D.C. Plostinar, A.G. Sosa, E. Trachanas, R. Zeng
    ESS, Lund, Sweden
  • C. Baltador, L. Bellan, M. Comunian, F. Grespan, A. Palmieri
    INFN/LNL, Legnaro (PD), Italy
  • I. Bustinduy, N. Garmendia
    ESS Bilbao, Zamudio, Spain
  • L. Neri
    INFN/LNS, Catania, Italy
  
  The Eu­ro­pean Spal­la­tion Source (ESS) aims to build and com­mis­sion a 2 MW pro­ton linac ready for neu­tron pro­duc­tion in 2025. The nor­mal con­duct­ing sec­tion of the ESS linac is de­signed to ac­cel­er­ate a 62.5 mA pro­ton beam to 90 MeV at 14 Hz. The sec­tion con­sists of a mi­crowave ion source, Radio Fre­quency Quadru­pole (RFQ) and 5-tank Drift Tube Linac (DTL). All sec­tions are pro­vided to ESS by in-kind part­ners across Eu­rope. This paper re­ports the re­cent progress on the as­sem­bly, in­stal­la­tion, test­ing and com­mis­sion­ing of the ESS nor­mal con­duct­ing linac.  
slides icon Slides TUPOJO10 [2.397 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TUPOJO10  
About • Received ※ 12 August 2022 — Revised ※ 15 August 2022 — Accepted ※ 28 August 2022 — Issue date ※ 03 September 2022
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TUPOJO14 Status of Testing and Commissioning of the Medium Energy Beam Transport Line of the ESS Normal Conducting Linac 376
 
  • A.G. Sosa, R.A. Baron, H. Danared, C.S. Derrez, E.M. Donegani, M. Eshraqi, V. Grishin, A. Jansson, M. Jensen, B. Jones, E. Laface, B. Lagoguez, Y. Levinsen, J.P.S. Martins, N. Milas, R. Miyamoto, D.J.P. Nicosia, D. Noll, D.C. Plostinar, T.J. Shea, R. Tarkeshian, C.A. Thomas, E. Trachanas, P.L. van Velze
    ESS, Lund, Sweden
  • I. Bustinduy, A. Conde, D. Fernández-Cañoto, N. Garmendia, P.J. González, G. Harper, A. Kaftoosian, J. Martin, I. Mazkiaran, J.L. Muñoz, A.R. Páramo, S. Varnasseri, A.Z. Zugazaga
    ESS Bilbao, Derio, Spain
  
  The lat­est beam com­mis­sion­ing phase of the Nor­mal Con­duct­ing Linac at ESS de­liv­ered a pro­ton beam through the Medium En­ergy Beam Trans­port (MEBT) into the first Drift Tube Linac (DTL) tank. The probe beam in MEBT con­sisted of 3.6 MeV pro­tons of <6 mA, <5 mi­crosec­onds pulse length and 1 Hz rep­e­ti­tion rate. Fol­low­ing the de­liv­ery of the com­po­nents at ESS in Lund in June 2019, the com­mis­sion­ing phase with the MEBT was com­pleted in July 2022. In March 2022, the max­i­mum beam cur­rent of 62.5 mA was trans­ported up to the MEBT Fara­day cup. This pro­ceed­ing fo­cuses on the sta­tus of MEBT in­clud­ing mag­nets, buncher cav­i­ties, scrap­ers and beam di­ag­nos­tics de­signed and tested in col­lab­o­ra­tion with ESS Bil­bao.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TUPOJO14  
About • Received ※ 13 August 2022 — Revised ※ 19 August 2022 — Accepted ※ 31 August 2022 — Issue date ※ 01 September 2022
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TUPOPA05 RFQ Performance During RF Conditioning and Beam Commissioning at ESS 418
 
  • R. Zeng, G.S. Fedel, B. Jones, R. Miyamoto, D.J.P. Nicosia, D. Noll, A.G. Sosa, A.M. Svensson, E. Trachanas
    ESS, Lund, Sweden
  • M. Baudrier
    CEA-DRF-IRFU, France
  • A.C. Chauveau, M.J. Desmons, P. Hamel, O. Piquet
    CEA-IRFU, Gif-sur-Yvette, France
  • F. Grespan
    INFN/LNL, Legnaro (PD), Italy
  
  RFQ at ESS has been suc­cess­fully gone through RF con­di­tion­ing, RF re-con­di­tion­ing and low duty cycle beam com­mis­sion­ing. RFQ ful­fills re­quired func­tions and over­all per­for­mance is sat­is­fac­tory. RF con­di­tion­ing, three RF re-con­di­tion­ings after LEBT in­ter­ven­tion and beam com­mis­sion­ing will be re­ported and RFQ per­for­mance dur­ing these pe­ri­ods will be de­scribed. RFQ per­for­mance in a large ex­tent is re­flected by dy­nam­ics and in­ter­ac­tions be­tween RF, cav­ity and beam. Thanks to ad­vanced hard­ware ca­pa­bil­i­ties and in­tel­li­gent soft­ware in­tel­li­gence, ob­ser­va­tion of those dy­nam­ics and in­ter­ac­tions are done in de­tailed level. Analy­sis of those dy­nam­ics and in­ter­ac­tion will be in­tro­duced. Some tech­niques to deal with chal­lenges re­sulted from those dy­nam­ics and in­ter­ac­tions will also be dis­cussed.  
poster icon Poster TUPOPA05 [25.281 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2022-TUPOPA05  
About • Received ※ 18 August 2022 — Revised ※ 25 August 2022 — Accepted ※ 31 August 2022 — Issue date ※ 05 September 2022
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