Performance of the 2 MeV microwave gun for the SSRL 150 MeV linac
Abstract
As described in a previous article, the preinjector linac for SSRL's 3 GeV synchrotron is fed by a 2 MeV, 1.5 A, low-emittance microwave gun, consisting of a thermionic cathode mounted in the first cell of a 1-1/2-cell S-band cavity. In this article, we report on the successful operation of the low-emittance gun, the longitudinally-bunching alpha-magnet, and the three-microbunch FET-pulsed beam-chopper. Simulations predict a normalized rms emittance at the gun exit of less than 10 {pi}{center dot}m{sub e}c{center dot}{mu}m; chromatic effects in transport optics increase this to approximately 30 {pi}{center dot}m{sub e}c{center dot}{mu}m. The gun was specifically designed to have a longitudinal phase-space suited to magnetic compression, as a result of which we predict that peak currents in excess of 300 A in a 1 ps bunch are feasible with the existing alpha-magnet. Results of simulations and experiments will be presented and compared. 13 refs., 9 figs.
- Authors:
-
- Stanford Univ., CA (USA). Stanford Synchrotron Radiation Lab.
- Varian Associates, Inc., Palo Alto, CA (USA)
- Stanford Linear Accelerator Center, Menlo Park, CA (USA)
- AET Associates, Cupertino, CA (USA) Varian Associates, Inc., Palo Alto, CA (USA)
- Publication Date:
- Research Org.:
- Stanford Linear Accelerator Center, Menlo Park, CA (USA)
- Sponsoring Org.:
- DOE/ER
- OSTI Identifier:
- 6183102
- Report Number(s):
- SLAC-PUB-5333; CONF-9009123-60
ON: DE91004688; TRN: 91-000759
- DOE Contract Number:
- AC03-76SF00515
- Resource Type:
- Conference
- Resource Relation:
- Conference: Linear accelerator conference, Albuquerque, NM (USA), 9-14 Sep 1990
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; ELECTRON BEAMS; ACCELERATION; MICROWAVE AMPLIFIERS; PERFORMANCE; BEAM BUNCHING; BEAM INJECTION; BEAM PULSERS; BEAM TRANSPORT; LINEAR ACCELERATORS; MAGNETIC COMPRESSION; PHASE SPACE; RF SYSTEMS; SYNCHROTRONS; THERMIONIC EMITTERS; ACCELERATORS; AMPLIFIERS; BEAM DYNAMICS; BEAMS; COMPRESSION; CYCLIC ACCELERATORS; ELECTRONIC EQUIPMENT; EQUIPMENT; LEPTON BEAMS; MATHEMATICAL SPACE; MICROWAVE EQUIPMENT; PARTICLE BEAMS; SPACE; 430302* - Particle Accelerators- Injection & Extraction Systems
Citation Formats
Borland, M, Weaver, J N, Wiedemann, H, Green, M C, Nelson, L V, Miller, R H, and Tanabe, E. Performance of the 2 MeV microwave gun for the SSRL 150 MeV linac. United States: N. p., 1990.
Web.
Borland, M, Weaver, J N, Wiedemann, H, Green, M C, Nelson, L V, Miller, R H, & Tanabe, E. Performance of the 2 MeV microwave gun for the SSRL 150 MeV linac. United States.
Borland, M, Weaver, J N, Wiedemann, H, Green, M C, Nelson, L V, Miller, R H, and Tanabe, E. Sat .
"Performance of the 2 MeV microwave gun for the SSRL 150 MeV linac". United States. https://www.osti.gov/servlets/purl/6183102.
@article{osti_6183102,
title = {Performance of the 2 MeV microwave gun for the SSRL 150 MeV linac},
author = {Borland, M and Weaver, J N and Wiedemann, H and Green, M C and Nelson, L V and Miller, R H and Tanabe, E},
abstractNote = {As described in a previous article, the preinjector linac for SSRL's 3 GeV synchrotron is fed by a 2 MeV, 1.5 A, low-emittance microwave gun, consisting of a thermionic cathode mounted in the first cell of a 1-1/2-cell S-band cavity. In this article, we report on the successful operation of the low-emittance gun, the longitudinally-bunching alpha-magnet, and the three-microbunch FET-pulsed beam-chopper. Simulations predict a normalized rms emittance at the gun exit of less than 10 {pi}{center dot}m{sub e}c{center dot}{mu}m; chromatic effects in transport optics increase this to approximately 30 {pi}{center dot}m{sub e}c{center dot}{mu}m. The gun was specifically designed to have a longitudinal phase-space suited to magnetic compression, as a result of which we predict that peak currents in excess of 300 A in a 1 ps bunch are feasible with the existing alpha-magnet. Results of simulations and experiments will be presented and compared. 13 refs., 9 figs.},
doi = {},
url = {https://www.osti.gov/biblio/6183102},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {9}
}