Author: Baily, S.A.
Paper Title Page
TU1BCO05 Model Driven Reconfiguration of LANSCE Tuning Methods 267
 
  • C.E. Taylor, P.M. Anisimov, S.A. Baily, E.-C. Huang, H.L. Leffler, L. Rybarcyk, A. Scheinker, H.A. Watkins, E.E. Westbrook, D.D. Zimmermann
    LANL, Los Alamos, New Mexico, USA
  
  Funding: National Nuclear Security Administration (NNSA)
This work pre­sents a re­view of the shift in tun­ing meth­ods em­ployed at the Los Alamos Neu­tron Sci­ence Cen­ter (LAN­SCE). We ex­plore the tun­ing cat­e­gories and meth­ods em­ployed in four key sec­tions of the ac­cel­er­a­tor, namely the Low-En­ergy Beam Trans­port (LEBT), the Drift Tube Linac (DTL), the side-Cou­pled Cav­ity Linac (CCL), and the High-En­ergy Beam Trans­port (HEBT). The study ad­di­tion­ally pre­sents the find­ings of em­ploy­ing novel soft­ware tools and al­go­rithms to en­hance each do­main’s beam qual­ity and per­for­mance. This study show­cases the ef­fi­cacy of in­te­grat­ing model-dri­ven and model-in­de­pen­dent tun­ing tech­niques, along with ac­cep­tance and adap­tive tun­ing strate­gies, to en­hance the op­ti­miza­tion of beam de­liv­ery to ex­per­i­men­tal fa­cil­i­ties. The re­search ad­di­tion­ally ad­dresses the prospec­tive strate­gies for aug­ment­ing the con­trol sys­tem and di­ag­nos­tics of LAN­SCE.
*R.W. Garnett, J. Phys.: Conf. Ser. 1021 012001
**A. Scheinker, Rev. ST Accel. Beams 16 102803 2013
***R. Keller, Proc of Part Accel Conf
****M. Oothoudt, Proc of Part Accel Conf, 2003, v4
 		 
slides icon Slides TU1BCO05 [2.886 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-TU1BCO05  
About • Received ※ 06 October 2023 — Revised ※ 08 October 2023 — Accepted ※ 12 December 2023 — Issued ※ 13 December 2023
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THPDP085 LANSCE’s Timing System Status and Future Plans 1547
 
  • L.E. Walker, B.C. Atencio, S.A. Baily, D. Fratantonio, C.D. Hatch, M. Pieck, T. Ramakrishnan
    LANL, Los Alamos, New Mexico, USA
  
  Funding: This work was supported by the U.S. DOE through the Los Alamos National Laboratory (LANL). LANL is operated by Triad National Security, LLC, for the NNSA of U.S. DOE - Contract No. 89233218CNA000001
The Los Alamos Neu­tron Sci­ence Cen­ter (LAN­SCE) op­er­ates at a max­i­mum rep­e­ti­tion rate of 120 Hz. Tim­ing gates are re­quired for syn­chro­niza­tion of the ac­cel­er­a­tor to pro­vide beam ac­cel­er­a­tion along the LINAC and beam dis­tri­b­u­tion to the five ex­per­i­men­tal areas. They are also pro­vided to other de­vices with sen­si­tive op­er­at­ing points rel­a­tive to the ma­chine cycle. Over the last 50 years of op­er­a­tions many new time sen­si­tive pieces of equip­ment have been added. This has changed the de­mand on, and com­plex­ity of, the tim­ing sys­tem. Fur­ther dri­ven by equip­ment ob­so­les­cence is­sues, the tim­ing sys­tem un-der­went many up­grades and re­vi­tal­iza­tion ef­forts, with the most sig­nif­i­cant de­ploy­ment start­ing in 2016. Due to these up­grade ef­forts, the tim­ing sys­tem ar­chi­tec­ture de­sign changed from a purely cen­tral­ized sys­tem, to a dis­trib­uted event-based one. The pur­pose of this paper is to de­tail the cur­rent state of the tim­ing sys­tem, as a hy-brid sys­tem with the gate events being gen­er­ated from a new tim­ing mas­ter sys­tem, while still uti­liz­ing legacy dis­tri­b­u­tion and fanout sys­tems. Up­grades to the dis­tribu-tion sys­tem are planned, but due to the re­quired beam de­liv­ery sched­ule, they can only be de­ployed in sec­tions dur­ing four-month an­nual main­te­nance cy­cles. The paper will also cover the off-the-shelf so­lu­tions that have been found for stan­dard­iza­tion, and the ef­forts to­wards a life cycle man­age­ment process.
LA-UR-23-31123 		 
poster icon Poster THPDP085 [3.311 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-THPDP085  
About • Received ※ 29 September 2023 — Revised ※ 11 October 2023 — Accepted ※ 06 December 2023 — Issued ※ 13 December 2023
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)