Author: Kayran, D.
Paper Title Page
PLT04
 ERL Requirements for X-ray Optics-Free FEL Oscillator  
 
  • V. Litvinenko, J. Bengtsson, Y. Hao, Y.C. Jing, D. Kayran, D. Trbojevic
    BNL, Upton, Long Island, New York, USA
  
  We present a comprehensive list of requirements for ERLs required for X-ray FEL oscillator. We discuss both the main ERL driving a high-gain FEL amplifier as well as ERL generating a feed-back electron beam. A scheme where a third ERL is used to generate a TEM-wiggler field used in the feed-back is also presented.  
slides icon Slides PLT04 [2.058 MB]  
 
WG105
 BNL SRF Gun Commissioning  
 
  • W. Xu, Z. Altinbas, S.A. Belomestnykh, I. Ben-Zvi, J. Dai, S. Deonarine, D.M. Gassner, H. Hahn, J.P. Jamilkowski, P. Kankiya, D. Kayran, N. Laloudakis, L. Masi, G.T. McIntyre, D. Pate, D. Phillips, T. Seda, K.S. Smith, A.N. Steszyn, T.N. Tallerico, R. Than, R.J. Todd, D. Weiss, A. Zaltsman
    BNL, Upton, Long Island, New York, USA
  • S.A. Belomestnykh, I. Ben-Zvi, J. Dai
    Stony Brook University, Stony Brook, USA
  
  Funding: This work is supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. DOE.
The 704 MHz superconducting RF gun for R&D ERL project is under comissioning at BNL. Since last November, the SRF gun has been conditioned and demonstrated an operational accelerating voltage of 2 MV (an accelerating gradient of 23.5 MV/m). Preparations for the cathode insertion are in final stages and we expect the gun to generate the first electron beam this summer. This paper discusses the BNL SRF gun system, results of the SRF gun commissioning. 		 
slides icon Slides WG105 [1.336 MB]  
 
WG304
 Superconducting RF systems in the R&D ERL at BNL  
 
  • W. Xu, Z. Altinbas, S.A. Belomestnykh, I. Ben-Zvi, J. Dai, S. Deonarine, D.M. Gassner, H. Hahn, J.P. Jamilkowski, P. Kankiya, D. Kayran, N. Laloudakis, L. Masi, G.T. McIntyre, T.A. Miller, D. Pate, D. Phillips, T. Seda, K.S. Smith, A.N. Steszyn, T.N. Tallerico, R. Than, R.J. Todd, D. Weiss, A. Zaltsman
    BNL, Upton, Long Island, New York, USA
  • S.A. Belomestnykh, J. Dai
    Stony Brook University, Stony Brook, USA
  
  Funding: This work is supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. DOE.
The R&D ERL project at BNL aims to demonstrate a high charge, high current energy recovery linac (ERL). The R&D ERL includes two superconducting RF systems: a half-cell superconducting RF (SRF) gun and a five-cell superconducting linac cryomodule, both operating at 703.7 MHz. A series of tests of the five-cell superconducting linac cavity has been carried out in the ERL cave in the past 4 years. The cavity is able to achieve 20 MV/m with a Q0 exceeding 1010 in pulse mode but only 12 MV/m in CW mode due to a thermal problem. The SRF gun has been conditioned and demonstrated an operational accelerating voltage of 2 MV (an accelerating gradient of 23.5 MV/m). This paper discusses commissioning of the SRF gun and the five-cell superconducting linac cryomodule, and the experience gained during operations of the superconducting RF system for the high current ERL. 		 
slides icon Slides WG304 [3.359 MB]