Design of a high-bunch-charge 112-MHz superconducting RF photoemission electron source

Journal Article · Thu Sep 01 00:00:00 EDT 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4962682· OSTI ID:1326246

Xin, T.; Brutus, J. C.; Belomestnykh, Sergey A. ; Ben-Zvi, I.; Boulware, C. H. ; Grimm, T. L.; Hayes, T.; Litvinenko, Vladimir N.; Mernick, K.; Narayan, G.; Orfin, P.; Pinayev, I.; Rao, T.; Severino, F.; Skaritka, J.; Smith, K.; Than, R. ; Tuozzolo, J.; Wang, E.; Xiao, B. ; Xie, H.; Zaltsman, A.

High-bunch-charge photoemission electron-sources operating in a continuous wave (CW) mode are required for many advanced applications of particle accelerators, such as electron coolers for hadron beams, electron-ion colliders, and free-electron lasers (FELs). Superconducting RF (SRF) has several advantages over other electron-gun technologies in CW mode as it offers higher acceleration rate and potentially can generate higher bunch charges and average beam currents. A 112 MHz SRF electron photoinjector (gun) was developed at Brookhaven National Laboratory (BNL) to produce high-brightness and high-bunch-charge bunches for the Coherent electron Cooling Proof-of-Principle (CeC PoP) experiment. Lastly, the gun utilizes a quarter-wave resonator (QWR) geometry for assuring beam dynamics, and uses high quantum efficiency (QE) multi-alkali photocathodes for generating electrons.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• Grant/Contract Number: FOA-0000632; SC00112704; PHY-1415252
• OSTI ID: 1326246
• Alternate ID(s): OSTI ID: 1336227; OSTI ID: 1421269
• Report Number(s): BNL-113258-2016-JA
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Vol. 87 Journal Issue: 9; ISSN 0034-6748
• Publisher: American Institute of Physics
• Country of Publication: United States
• Language: English

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