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1826195753990619136
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MIT
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© 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.
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2024-09-23T10:14:55Z
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Article
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mit-1721.1/132427
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| institution |
Massachusetts Institute of Technology
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| language |
English
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| last_indexed |
2024-09-23T10:14:55Z
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2021
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dspace
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| spelling |
mit-1721.1/1324272021-09-21T03:51:34Z LERF - New life for the jefferson laboratory FEL © 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. 2021-09-20T18:22:19Z 2021-09-20T18:22:19Z 2020-10-21T17:28:13Z Article http://purl.org/eprint/type/ConferencePaper https://hdl.handle.net/1721.1/132427 en 10.18429/JACoW-ERL2017-TUIACC001 Proceedings of ERL 2017, the 59th ICFA Advanced Beam Dynamics Workshop on Energy Recovery Linacs Creative Commons Attribution 3.0 unported license https://creativecommons.org/licenses/by/3.0/ application/pdf Joint Accelerator Conferences
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| spellingShingle |
LERF - New life for the jefferson laboratory FEL
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| title |
LERF - New life for the jefferson laboratory FEL
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| title_full |
LERF - New life for the jefferson laboratory FEL
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| title_fullStr |
LERF - New life for the jefferson laboratory FEL
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| title_full_unstemmed |
LERF - New life for the jefferson laboratory FEL
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| title_short |
LERF - New life for the jefferson laboratory FEL
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| title_sort |
lerf new life for the jefferson laboratory fel
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| url |
https://hdl.handle.net/1721.1/132427
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