Author: Shaftan, T.V.
Paper Title Page
MOPEA053 Status of NSLS-II Booster 196
 
  • S.M. Gurov, A.I. Erokhin, S.E. Karnaev, V.A. Kiselev, E.B. Levichev, A. Polyansky, A.M. Semenov, S.V. Shiyankov, S.V. Sinyatkin, V.V. Smaluk
    BINP SB RAS, Novosibirsk, Russia
  • H.-C. Hseuh, T.V. Shaftan
    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 3 GeV elec­tron stor­age ring, linac pre-in­jec­tor and full-en­ergy in­jec­tor-syn­chro­tron. Bud­ker In­sti­tute of Nu­clear Physics build booster for NSLS-II. The booster should ac­cel­er­ate the elec­tron beam con­tin­u­ously and re­li­ably from a min­i­mum 170 MeV in­jec­tion en­ergy to a max­i­mum en­ergy of 3.15 GeV and av­er­age beam cur­rent of 20 mA. The booster shall be ca­pa­ble of multi-bunch and sin­gle bunch op­er­a­tion. Pre-comis­sion­ing test re­sults of booster com­po­nents and sys­tem are re­viewed.  
 
MOPEA080 Status of the NSLS-II Injector 273
 
  • T.V. Shaftan, A. Blednykh, E.B. Blum, W.X. Cheng, J. Choi, L.R. Dalesio, M.A. Davidsaver, J.H. De Long, R.P. Fliller, G. Ganetis, F. Gao, A. Goel, W. Guo, K. Ha, R. Heese, H.-C. Hseuh, M.P. Johanson, B.N. Kosciuk, S. Kowalski, S.L. Kramer, Y. Li, W. Louie, S. Ozaki, D. Padrazo, J. Rose, S. Seletskiy, S.K. Sharma, G. Shen, O. Singh, V.V. Smaluk, Y. Tian, K. Vetter, W.H. Wahl, G.M. Wang, F.J. Willeke, X. Yang, L.-H. Yu, P. Zuhoski
    BNL, Upton, Long Island, New York, USA
  
  We dis­cuss the cur­rent sta­tus and plans for de­vel­op­ing the NSLS-II in­jec­tor. The lat­ter con­sists of a 200 MeV linac, a 3-GeV booster, trans­port lines and the stor­age ring in­jec­tion straight sec­tion. The sys­tem de­sign and in­stal­la­tion are com­plete. Last year we con­cluded 200-MeV linac com­mis­sion­ing and are plan­ning to com­mis­sion the 3 GeV booster dur­ing sum­mer of 2013.  
 
WEPWA083 Results of NSLS-II Linac Commissioning 2301
 
  • R.P. Fliller, A. Blednykh, J. Choi, M.A. Davidsaver, J.H. De Long, F. Gao, C. Gardner, Y. Hu, G. Jahnes, W. Jew, J. Klug, P. Marino, D. Padrazo, L. Pharr, R. Rainer, G. Ramirez, P. Ratzke, R. Raynis, J. Rose, M. Santana, S. Seletskiy, T.V. Shaftan, J. Shah, G. Shen, O. Singh, V.V. Smaluk, C. Sorrentino, K. Vetter, G.M. Wang, G.J. Weiner, X. Yang, L.-H. Yu, E. Zeitler
    BNL, Upton, Long Island, New York, USA
  • K. Dunkel, J.H. Hottenbacher, B. Keune, A. Metz, C. Piel
    RI Research Instruments GmbH, Bergisch Gladbach, Germany
  
  Funding: This manuscript has been authored by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy.
The NSLS-II linac is a 200 MeV nor­mal con­duct­ing linac pro­cured as a turn key sys­tem from Re­search In­stru­ments. The linac and as­so­ci­ated trans­port lines were in­stalled at BNL in the win­ter of 2012. Com­mis­sion­ing ac­tiv­i­ties started March 26 and lasted for 2.5 months. In this re­port we dis­cuss the suc­cess­ful com­mis­sion­ing re­sults of the linac, is­sues en­coun­tered, and the re­main­ing work that needs to be ac­com­plished for NSLS-II booster com­mis­sion­ing. 		 
 
WEPWA091 Simulation Design of a Low Energy Bunch Compressor with Space Charge Effect 2307
 
  • A. He, Y. Hidaka, T.V. Shaftan, G.M. Wang, F.J. Willeke, L. Yang, L.-H. Yu
    BNL, Upton, Long Island, New York, USA
  
  Funding: Department of Energy, USA
Fol­low­ing the pro­posal of elec­tron beam slic­ing method to gen­er­ate short x-ray pulses in stor­age ring, we stud­ied the fea­si­bil­ity of the cru­cial tech­nique re­quired by elec­tron beam slic­ing, i.e., the gen­er­a­tion of very low en­ergy elec­tron beam with very small beam size (30 μm) and very short bunch length (100 fs). Based on one of the BNL RF gun, 5 MeV beam en­ergy and 50 pC bunch charge was as­sumed in the study. The beam ‘nat­ural’ en­ergy-time neg­a­tive chirp, due to space charge ef­fect, was used and the bunch length is com­pressed from from 0.8 ps to ~150 fs with a chi­cane struc­ture. The sys­tem is in the space charge dom­i­nated regime. We use the code PARMELA and Generic op­ti­miza­tion method for pa­ra­me­ters op­ti­miza­tion with var­i­ous strate­gies to over­come the dam­ag­ing from the space charge ef­fect. After op­ti­miza­tion, the beam trans­verse size is 50 mi­cron and the bunch length is 150 fs, close to our orig­i­nal spec­i­fi­ca­tion. In this paper we de­scribe the de­sign and the phys­i­cal process in the com­pres­sor and focus sec­tion. The study con­firmed the pos­si­bil­ity to gen­er­ate strong fo­cused and com­pressed very low en­ergy beam in the space charge dom­i­nated regime. 		 
 
THPEA063 NSLS II Injector Integrated Testing 3285
 
  • G.M. Wang, B. Bacha, A. Blednykh, E.B. Blum, W.X. Cheng, J. Choi, L.R. Dalesio, M.A. Davidsaver, J.H. De Long, R.P. Fliller, W. Guo, K. Ha, H.-C. Hseuh, Y. Hu, W. Louie, M.A. Maggipinto, D. Padrazo, T.V. Shaftan, G. Shen, O. Singh, Y. Tian, K. Vetter, F.J. Willeke, H. Xu, L. Yang, X. Yang
    BNL, Upton, Long Island, New York, USA
  • P.B. Cheblakov, A.A. Derbenev, A.I. Erokhin, S.M. Gurov, R.A. Kadyrov, S.E. Karnaev, E.A. Simonov, S.V. Sinyatkin, V. Smalyuk
    BINP SB RAS, Novosibirsk, Russia
  
  The NSLS-II is a state of the art 3 GeV syn­chro­tron light source under con­struc­tion at Brookhaven Na­tional Lab­o­ra­tory. Since 2012, the in­jec­tor sys­tem grad­u­ally moves to the com­mis­sion­ing stage. It oc­curs after group peo­ple ef­forts on op­tics de­sign, equip­ment spec­i­fi­ca­tions, con­struc­tion and tests, as­sem­bly, in­stal­la­tion and align­ment. It is very im­por­tant and ex­cit­ing. To make the com­mis­sion­ing smooth and ef­fi­cient, an im­por­tant ef­fort was put on the sub-sys­tem in­te­gra­tion test to make sure the de­vice func­tion along with util­ity, tim­ing sys­tem and con­trol sys­tem, to cal­i­brate di­ag­nos­tics sys­tem and to debug high level ap­pli­ca­tion with sim­u­lated beam sig­nals and re­quired hard­ware. In this paper, we re­port our in­te­gra­tion test ex­pe­ri­ence and re­lated con­trol sys­tem soft­ware de­vel­op­ment.