Determination of Kicker Vacuum Requirements
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
This note examines the effect of elevated vacuum pressures in the kicker region of the DARHT 2nd Axis which can lead to changes in the beam tune due to the long pulse length. The kicker uses Rexolite as an insulator supporting the electrodes. Rexolite is hygroscopic resulting is a large outgassing rate and prolonged pump down times after exposure to atmospheric conditions. LAMDA [1] is used to simulate the effect of ionization of the residual gas resulting in partial space charge neutralization and changes to the tune between the beginning and end of the pulse. The effect of the ion-hose instability is also examined. The purpose of this note is to establish/validate the required pressure in the downstream transport.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1392852
- Report Number(s):
- LA-UR-17-28354
- Country of Publication:
- United States
- Language:
- English
Similar Records
Circuit modeling and component trimming to achieve performance requirements for the DARHT prototype injector
Effect of Beam Motion on Observed Image at Imaging Station C