Booster Synchrotron RF System Upgrade for SPEAR3
Abstract
Recent progress at the SPEAR3 includes the increase in stored current from 100 mA to 200 mA and top-off injection to allow beamlines to stay open during injection. Presently the booster injects 3.0 GeV beam to SPEAR3 three times a day. The stored beam decays to about 150 mA between the injections. The growing user demands are to increase the stored current to the design value of 500 mA, and to maintain it at a constant value within a percent or so. To achieve this goal the booster must inject once every few minutes. For improved injection efficiency, all RF systems at the linac, booster and SPEAR3 need to be phase-locked. The present booster RF system is basically a copy of the SPEAR2 RF system with 358.5 MHz and 40 kW peak RF power driving a 5-cell RF cavity for 1.0 MV gap voltage. These requirements entail a booster RF system upgrade to a scaled down version of the SPEAR3 RF system of 476.3 MHz with 1.2 MW cw klystron output power capabilities. We will analyze each subsystem option for their merits within budgetary and geometric space constraints. A substantial portion of the system will come from the decommissioned PEP-IImore »
- Authors:
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1045177
- Report Number(s):
- SLAC-PUB-15162
TRN: US1203529
- DOE Contract Number:
- AC02-76SF00515
- Resource Type:
- Conference
- Journal Name:
- Conf.Proc.C100523:WEPEA075,2010
- Additional Journal Information:
- Conference: 1st International Particle Accelerator Conference: IPAC'10, 23-28 May 2010, Kyoto, Japan
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; ACCELERATORS; DESIGN; EFFICIENCY; KLYSTRONS; RF SYSTEMS; SYNCHROTRONS; Accelerators,ACCPHY
Citation Formats
Park, Sanghyun, /SLAC, Corbett, Jeff, and /SLAC. Booster Synchrotron RF System Upgrade for SPEAR3. United States: N. p., 2012.
Web.
Park, Sanghyun, /SLAC, Corbett, Jeff, & /SLAC. Booster Synchrotron RF System Upgrade for SPEAR3. United States.
Park, Sanghyun, /SLAC, Corbett, Jeff, and /SLAC. 2012.
"Booster Synchrotron RF System Upgrade for SPEAR3". United States. https://www.osti.gov/servlets/purl/1045177.
@article{osti_1045177,
title = {Booster Synchrotron RF System Upgrade for SPEAR3},
author = {Park, Sanghyun and /SLAC and Corbett, Jeff and /SLAC},
abstractNote = {Recent progress at the SPEAR3 includes the increase in stored current from 100 mA to 200 mA and top-off injection to allow beamlines to stay open during injection. Presently the booster injects 3.0 GeV beam to SPEAR3 three times a day. The stored beam decays to about 150 mA between the injections. The growing user demands are to increase the stored current to the design value of 500 mA, and to maintain it at a constant value within a percent or so. To achieve this goal the booster must inject once every few minutes. For improved injection efficiency, all RF systems at the linac, booster and SPEAR3 need to be phase-locked. The present booster RF system is basically a copy of the SPEAR2 RF system with 358.5 MHz and 40 kW peak RF power driving a 5-cell RF cavity for 1.0 MV gap voltage. These requirements entail a booster RF system upgrade to a scaled down version of the SPEAR3 RF system of 476.3 MHz with 1.2 MW cw klystron output power capabilities. We will analyze each subsystem option for their merits within budgetary and geometric space constraints. A substantial portion of the system will come from the decommissioned PEP-II RF stations.},
doi = {},
url = {https://www.osti.gov/biblio/1045177},
journal = {Conf.Proc.C100523:WEPEA075,2010},
number = ,
volume = ,
place = {United States},
year = {Fri Jul 06 00:00:00 EDT 2012},
month = {Fri Jul 06 00:00:00 EDT 2012}
}