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

fYear

1989

fDate

20-23 Mar 1989

Firstpage

273

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE

Conference_Location

Chicago, IL

Type

conf

DOI

10.1109/PAC.1989.73144

Filename

73144