| Title |
Production of 120 MeV Gamma-ray Beams at Duke FEL and HIGS Facility |
| Authors |
- S.F. Mikhailov, V. Popov, G. Swift, P.W. Wallace, Y.K. Wu, J. Yan
FEL/Duke University, Durham, North Carolina, USA
- M.W. Ahmed, M. Sikora
TUNL, Durham, North Carolina, USA
- H. Ehlers, L.O. Jensen, L. Kochanneck
Laser Zentrum Hannover, Hannover, Germany
|
| Abstract |
In this paper we report extension of the operational energy of the gamma ray beams produced at Duke High Intensity Gamma-ray Source (HIGS) up to ~120MeV, opening up a new high energy region of gamma rays for photonuclear physics research. This achievement is based upon development of radiation robust, thermally stable, high-reflectivity fluoride (LaF3/MgF2) multilayer VUV FEL mirrors, enabling us to maintain stable high intensity FEL lasing at the wavelengths of around 175nm. We discuss the challenges of HIGS operation at high gamma and high electron beam energies with the downstream FEL mirror exposed to extremely hush radiation. The experience of the first HIGS user operation with high intensity, high gamma-ray beam energies (85 and ~120MeV) using these new mirrors is also discussed.
|
| Funding |
This work is supported by the US DoE grant #DE-FG02-97ER41033 |
| Paper |
download TUPAB067.PDF [0.880 MB / 3 pages] |
| Poster |
download TUPAB067_POSTER.PDF [1.023 MB] |
| Export |
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※ EndNote |
| Conference |
IPAC2021 |
| Series |
International Particle Accelerator Conference (12th) |
| Location |
Campinas, SP, Brazil |
| Date |
24-28 May 2021 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Liu Lin (LNLS, Campinas, Brazil); John M. Byrd (ANL, Lemont, IL, USA); Regis Neuenschwander (LNLS, Campinas, Brazil); Renan Picoreti (LNLS, Campinas, Brazil); Volker R. W. Schaa (GSI, Darmstadt, Germany) |
| Online ISBN |
978-3-95450-214-1 |
| Online ISSN |
2673-5490 |
| Received |
30 May 2021 |
| Accepted |
09 June 2021 |
| Issue Date |
31 August 2021 |
| DOI |
doi:10.18429/JACoW-IPAC2021-TUPAB067 |
| Pages |
1522-1524 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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