LERF - New life for the jefferson laboratory FEL
Name
tuiacc001.pdf
Description
Published version
Size
766.68 KB
Format
Unknown
Checksum (MD5)
cc67d53a4d66b955507742a121d4e317
Author(s)
Balewski, Jan T.
Bernauer, Jan Christopher
Bessuille, Jason C.
Corliss, Ross Cameron
Cowan, R.
Epstein, C
Fisher, P
Friščić, I
Hasell, Douglas K.
Ihloff, Ernest E
Date Issued
2018
Journal
Proceedings of ERL 2017, the 59th ICFA Advanced Beam Dynamics Workshop on Energy Recovery Linacs
Version
Final published version
Abstract
© ERL 2017, the 59th ICFA Advanced Beam Dynamics Workshop on Energy Recovery Linacs.All right reserved. In 2012 Jefferson Laboratory's energy recovery linac (ERL) driven Free Electron Laser successfully completed a transmission test in which high current CW beam (4.3 mA at 100 MeV) was transported through a 2 mm aperture for 7 hours with beam losses as low as 3 ppm. The purpose of the run was to mimic an internal gas target for DarkLight [1] - an experiment designed to search for a dark matter particle. The ERL was not run again until late 2015 for a brief re-commissioning in preparation for the next phase of DarkLight. In the intervening years, the FEL was rebranded as the Low Energy Recirculator Facility. In 2016 several weeks of operation were allocated to configure the machine for DarkLight with the purpose of exercising - for the first time - an internal gas target in an ERL. Despite a number of challenges, including the inability to energy recover without losses (precluding CW operation), beam was delivered to a target of thickness 1018 cm-2 which represents a three order of magnitude increase in thickness from previous internal target experiments. Details of the machine configuration and operational experience will be discussed.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 3.0 unported license
Persistent DSpace Link
DOI of Published Version
http://dx.doi.org/10.18429/JACoW-ERL2017-TUIACC001
