skip to main content

DOE PAGESDOE PAGES

Title: Enabling cost-effective high-current burst-mode operation in superconducting accelerators

Superconducting (SC) accelerators are very efficient for CW or long-pulse operation, and normal conducting (NC) accelerators are cost effective for short-pulse operation. The addition of a short NC linac section to a SC linac can correct for the energy droop that occurs when pulsed high-current operation is required that exceeds the capability of the klystrons to replenish the cavity RF fields due to the long field fill-times of SC structures, or a requirement to support a broad range of beam currents results in variable beam loading. This paper describes the implementation of this technique to enable microseconds of high beam-current, 90 mA or more, in a 12 GeV SC long-pulse accelerator designed for the MaRIE 42-keV XFEL proposed for Los Alamos National Laboratory.
Authors:
 [1]
  1. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Publication Date:
Report Number(s):
LA-UR-15-20908
Journal ID: ISSN 0168-9002; PII: S0168900215003113
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 785; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; superconducting accelerator; free electron laser; high current; short pulse
OSTI Identifier:
1193642
Alternate Identifier(s):
OSTI ID: 1247227

Sheffield, Richard L. Enabling cost-effective high-current burst-mode operation in superconducting accelerators. United States: N. p., Web. doi:10.1016/j.nima.2015.03.017.
Sheffield, Richard L. Enabling cost-effective high-current burst-mode operation in superconducting accelerators. United States. doi:10.1016/j.nima.2015.03.017.
Sheffield, Richard L. 2015. "Enabling cost-effective high-current burst-mode operation in superconducting accelerators". United States. doi:10.1016/j.nima.2015.03.017. https://www.osti.gov/servlets/purl/1193642.
@article{osti_1193642,
title = {Enabling cost-effective high-current burst-mode operation in superconducting accelerators},
author = {Sheffield, Richard L.},
abstractNote = {Superconducting (SC) accelerators are very efficient for CW or long-pulse operation, and normal conducting (NC) accelerators are cost effective for short-pulse operation. The addition of a short NC linac section to a SC linac can correct for the energy droop that occurs when pulsed high-current operation is required that exceeds the capability of the klystrons to replenish the cavity RF fields due to the long field fill-times of SC structures, or a requirement to support a broad range of beam currents results in variable beam loading. This paper describes the implementation of this technique to enable microseconds of high beam-current, 90 mA or more, in a 12 GeV SC long-pulse accelerator designed for the MaRIE 42-keV XFEL proposed for Los Alamos National Laboratory.},
doi = {10.1016/j.nima.2015.03.017},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 785,
place = {United States},
year = {2015},
month = {6}
}