Title :
Operational status of the Brookhaven National Laboratory Accelerator Test Facility
Author :
Batchelor, K. ; Ben-Zvi, I. ; Biglio, I. ; Chou, T.S. ; Fernow, R.C. ; Fischer, J. ; Gallardo, J. ; Kirk, G. ; Kurnit, N. ; McDonald, K.T. ; Palmer, R.B. ; Parsa, Z. ; Pellegrini, C. ; Sheehan, J. ; Srinivasan-Rao, T. ; Ulc, S. ; van Steenbergen, A. ; Woo
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
The design and operation of a 50-MeV electron linear accelerator utilizing a low emittance (γε=5 to 10 mm-mrad) radio-frequency gun operating at an output energy of 5 MeV and a charge of 1 nC are described. Design calculations, early radio-frequency measurements, and operational experience with the electron gun utilizing a dummy cathode in place of the proposed photocathode emitter are given. The dynamics of the electron beam coming off the photocathode has been modeled with the programs PARMELA and MASK. General agreement as to the expected characteristics of the electron beam at the RF-gun exit has been obtained using the two programs. It was also verified that, with proper matching of the transverse beam, no increase of the transverse normalized emittance occurs at the linac due to the fundamental RF mode
Keywords :
electron accelerators; electron guns; linear accelerators; particle beam diagnostics; physics computing; 5 MeV; 50 MeV; Brookhaven National Laboratory Accelerator Test Facility; MASK; PARMELA; design; electron beam; electron linear accelerator; operation; radio-frequency gun; radio-frequency measurements; transverse beam; transverse normalized emittance; Cathodes; Copper; Electron accelerators; Electron beams; Electron emission; Laboratories; Life estimation; Radio frequency; Test facilities; Testing;
Conference_Titel :
Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/PAC.1989.73144
