Author: Pinayev, I.
Paper Title Page
TUBL1 NSLS-II BPM and Fast Orbit Feedback System Design and Implementation 316
 
  • O. Singh, B. Bacha, A. Blednykh, W.X. Cheng, J.H. De Long, A.J. Della Penna, K. Ha, Y. Hu, B.N. Kosciuk, M.A. Maggipinto, J. Mead, D. Padrazo, I. Pinayev, Y. Tian, K. Vetter, L.-H. Yu
    BNL, Upton, Long Island, New York, USA
  
  The Na­tional Syn­chro­tron Light Source II is a third gen­er­a­tion light source under con­struc­tion at Brookhaven Na­tional Lab­o­ra­tory. The pro­ject in­cludes a highly op­ti­mized, ul­tra-low emit­tance, 3 GeV elec­tron stor­age ring, linac pre-in­jec­tor and full en­ergy booster syn­chro­tron. The low emit­tance re­quires high per­for­mance beam po­si­tion mon­i­tor sys­tems, pro­vid­ing mea­sure­ment to bet­ter than 200 nm res­o­lu­tion; and fast orbit feed­back sys­tems, hold­ing orbit to sim­i­lar level of orbit de­vi­a­tions. The NSLS-II stor­age ring has 30 cells, each de­ploy­ing up to 8 RF BPMs and 3 fast weak cor­rec­tors. Each cell con­sists of a "cell con­troller", pro­vid­ing fast orbit feed­back sys­tem in­fra­struc­ture. This paper will pro­vide a de­scrip­tion of sys­tem de­sign and sum­ma­rize the im­ple­men­ta­tion and sta­tus for these sys­tems.  
slides icon Slides TUBL1 [5.225 MB]  
 
TUPF24 Instrumentation for the Proposed Low Energy RHIC Electron Cooling Project 561
 
  • D.M. Gassner, A.V. Fedotov, D. Kayran, V. Litvinenko, R.J. Michnoff, T.A. Miller, M.G. Minty, I. Pinayev, M. Wilinski
    BNL, Upton, Long Island, New York, USA
  
  Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy
There is a strong in­ter­est in run­ning RHIC at low ion beam en­er­gies of 2.5-20GeV/nu­cleon; this is much lower than the typ­i­cal op­er­a­tions with 100GeV/nu­cleon. The pri­mary mo­ti­va­tion for this ef­fort is to ex­plore the ex­is­tence and lo­ca­tion of the crit­i­cal point on the QCD phase di­a­gram. Elec­tron cool­ing can in­crease the av­er­age in­te­grated lu­mi­nos­ity and in­crease the length of the stored life­time. Sim­u­la­tions and con­cep­tual cool­ing sub-sys­tem de­signs are un­der­way. The pre­sent plan is to pro­vide 10–50mA of bunched elec­tron beam with ad­e­quate qual­ity and an en­ergy range of 0.9–5MeV. The pre­lim­i­nary cool­ing fa­cil­ity con­fig­u­ra­tion planned to be fully in­side the RHIC tun­nel will in­clude a 102.74MHz SRF gun, a booster cav­ity, a beam trans­port to the Blue ring to allow elec­tron-ion co-prop­a­ga­tion for ~10-20m, then a 180 de­gree u-turn elec­tron trans­port so the same elec­tron beam can sim­i­larly cool the Yel­low ion beam, then to a dump. The elec­tron beam in­stru­men­ta­tion sys­tems that will be de­scribed in­clude cur­rent trans­form­ers, BPMs, pro­file mon­i­tors, a pep­per pot emit­tance sta­tion and loss mon­i­tors. 		 
poster icon Poster TUPF24 [1.588 MB]