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| WEP093 |
Radiation Damage Monitoring at PAL-XFEL |
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- S.J. Lee, J.H. Han, Y.G. Jung, D.E. Kim, G. Mun
PAL, Pohang, Kyungbuk, Republic of Korea
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Pohang Accelerator Laboratory X-ray Free Electron Laser (PAL-XFEL) has two undulator beamlines, one hard and one soft X-ray beamlines. These two undulator beamlines are in operation since 2017. To maintain the FEL radiation property, the B-field properties of PAL-XFEL undulators need to be kept at certain level. Under the 10 GeV beam operation condition, the accumulated radiation can affect the permanent magnet properties of the undulators. However, the radiation damage of permanent magnet can be different by the operation environment and the geometry of the undulator. Accumulated radiation sensors and a miniature undulator with a few periods are installed in the PAL-XFEL hard X-ray undulator line to monitor the undulator radiation damage. In this proceeding, the radiation monitoring activities and the recent measurement results will be introduced.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-FEL2019-WEP093
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| About • |
paper received ※ 19 August 2019 paper accepted ※ 25 August 2019 issue date ※ 05 November 2019 |
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