STI Publications - View Publication Form #16025
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Publication Information
| Title | Design and operation of a windowless gas target internal to a solenoidal magnet for use with a megawatt electron beam | ||||
| Abstract | A windowless hydrogen gas target of nominal thickness $10^{19}$ cm$^{-2}$ is an essential component of the DarkLight experiment, which is designed to utilize the megawatt electron beam at an Energy Recovery Linac (ERL). The design of such a target is challenging because the pressure drops by many orders of magnitude between the central, high-density section of the target and the surrounding beamline, resulting in laminar, transitional, and finally molecular flow regimes. The target system was assembled and operated at Jefferson Lab's Low Energy Recirculator Facility (LERF) in 2016, and subsequently underwent several revisions and calibration tests at MIT Bates in 2017. The system at dynamic equilibrium was simulated in COMSOL to provide a better understanding of its optimal operation at other working points. We have determined that a windowless gas target with sufficiently high density for DarkLight's experimental needs is feasible in an ERL environment. | ||||
| Author(s) | Sangbaek Lee, Ross Corliss, Ivica Friscic, R. Alarcon, Stephan Aulenbacher, Jan Balewski, Steve Benson, Jan Bernauer, Jason Bessuille, James Boyce, James Coleman, David Douglas, C. Epstein, Peter Fisher, Shawn Frierson, Michel Garcon, Joe Grames, Douglas Hasell, Carlos Hernandez-Garcia, Ernest Ihloff, R. Johnson, Kevin Jordan, Reza Kazimi, James Kelsey, Michael Kohl, Anusha Habarakada Liyanage, Mike McCaughan, Richard Milner, Patrick Moran, Daniel Palumbo, Matthew Poelker, Glenn Randall, Stephen Steadman, Christopher Tennant, C. Tschalaer, Christopher Vidal, Cannon Vogel, Yimin Wang, Shukui Zhang | ||||
| Publication Date | September 2019 | ||||
| Category | Beam Dynamics | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Massachusetts Institute of Technology, Cambridge, MA | ||||
| Affiliation | Accelerator Ops, R&D / Ctr For Injectors&Sources / Ctr for Injectors&Sources | ||||
| Funding Source | Nuclear Physics (NP), FG02- 94ER40818 | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Nuclear Instruments & Methods in Physics Research, Section A |
| Refereed | Yes |
| Volume | 939 |
| Issue | |
| Page(s) | 46-54 |
Attachments/Datasets/DOI Link
| Document(s) |
1903.02648.pdf
(STI Document)
1903.02648.pdf
(Accepted Manuscript)
SangbaekLeeDarkLightTarget.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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