Design, construction and status of all niobium superconducting photoinjector at BNL

Author

Srinivasan-Rao, T. ; Ben-Zvi, I. ; Burrill, A. ; Citver, G. ; Hershcovitch, A. ; Pate, D. ; Reuter, A. ; Scaduto, J. ; Zhao, Q. ; Zhao, Y. ; Delayen, J. ; Kneisel, P.

Author_Institution

Brookhaven Nat. Lab., Upton, NY, USA

Volume

1

fYear

2003

fDate

12-16 May 2003

Firstpage

92

Abstract

We present here the design and construction of an all niobium superconducting RF injector to generate high average current, high brightness electron beam. A 1/2 cell superconducting cavity has been designed, built, and tested. A cryostat has been built to cool the cavity to ∼2 K. The RF system can deliver up to 500 W at 1.3 GHz to the cavity. A mode-locked Nd:YVO₄ laser, operating at 266 nm with 0.15 W average power, phase locked to the RF, will irradiate a laser cleaned Nb surface at the back wall of the cavity. Description of critical components and their status are presented in the paper. Based on DC measurements, QE of up to 10^-4 can be expected from such cavity.

Keywords

accelerator cavities; accelerator magnets; electron sources; niobium; particle beam injection; photocathodes; superconducting magnets; 1.3 GHz; 2 K; 500 W; Nb; PARMELA simulation; all niobium superconducting RF injector; critical components; electron source; high average current beam; high brightness electron beam; laser cleaned surface; photocathode; superconducting cavity; Brightness; Cathodes; Electron beams; Laser beams; Laser mode locking; Niobium; Power lasers; Radio frequency; Surface emitting lasers; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1288849

Filename

1288849