Method of controlling coherent synchroton radiation-driven degradation of beam quality during bunch length compression
Abstract
A method of avoiding CSR induced beam quality defects in free electron laser operation by a) controlling the rate of compression and b) using a novel means of integrating the compression with the remainder of the transport system: both are accomplished by means of dispersion modulation. A large dispersion is created in the penultimate dipole magnet of the compression region leading to rapid compression; this large dispersion is demagnified and dispersion suppression performed in a final small dipole. As a result, the bunch is short for only a small angular extent of the transport, and the resulting CSR excitation is small.
- Inventors:
-
- Newport News, VA
- Williamsburg, VA
- Issue Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1069083
- Patent Number(s):
- 8217596
- Application Number:
- 12/381,954
- Assignee:
- Jefferson Science Associates, LLC (Newport News, VA)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05G - X-RAY TECHNIQUE
- DOE Contract Number:
- AC05-06OR23177
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Douglas, David R, and Tennant, Christopher D. Method of controlling coherent synchroton radiation-driven degradation of beam quality during bunch length compression. United States: N. p., 2012.
Web.
Douglas, David R, & Tennant, Christopher D. Method of controlling coherent synchroton radiation-driven degradation of beam quality during bunch length compression. United States.
Douglas, David R, and Tennant, Christopher D. Tue .
"Method of controlling coherent synchroton radiation-driven degradation of beam quality during bunch length compression". United States. https://www.osti.gov/servlets/purl/1069083.
@article{osti_1069083,
title = {Method of controlling coherent synchroton radiation-driven degradation of beam quality during bunch length compression},
author = {Douglas, David R and Tennant, Christopher D},
abstractNote = {A method of avoiding CSR induced beam quality defects in free electron laser operation by a) controlling the rate of compression and b) using a novel means of integrating the compression with the remainder of the transport system: both are accomplished by means of dispersion modulation. A large dispersion is created in the penultimate dipole magnet of the compression region leading to rapid compression; this large dispersion is demagnified and dispersion suppression performed in a final small dipole. As a result, the bunch is short for only a small angular extent of the transport, and the resulting CSR excitation is small.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 10 00:00:00 EDT 2012},
month = {Tue Jul 10 00:00:00 EDT 2012}
}
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