Performance of beam size monitor based on Kirkpatrick–Baez mirror at SSRF
| العنوان: | Performance of beam size monitor based on Kirkpatrick–Baez mirror at SSRF |
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| المؤلفون: | Jianshe Cao, Kairong Ye, Jie Chen, Junhui Yue, Yongbin Leng, Da-Heng Ji, Dechong Zhu, Yanfeng Sui, Shun-Qiang Tian |
| المصدر: | Nuclear Science and Techniques. 29 |
| بيانات النشر: | Springer Science and Business Media LLC, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Point spread function, Physics, Nuclear and High Energy Physics, Mirror image, 010308 nuclear & particles physics, business.industry, Synchrotron radiation, 01 natural sciences, Optics, Nuclear Energy and Engineering, 0103 physical sciences, Calibration, Physics::Accelerator Physics, Pinhole (optics), Thermal emittance, 010306 general physics, business, Storage ring, Beam (structure) |
| الوصف: | High-energy photon source (HEPS) is a 6 GeV ultralow emittance storage ring light source to be built in Beijing, China. Both the horizontal and vertical beam sizes of the HEPS storage ring are below 10 µm. It is a challenge to measure such a small beam size in both directions. To this end, measurement by a Kirkpatrick–Baez (KB) mirror imaging system was evaluated. A test KB system for the Shanghai Synchrotron Radiation Facility storage ring was designed and tested. Two crossed cylindrical mirrors were used to image the dipole source point. Both mirrors can be moved in and out so that the monitor is interchangeable with the original X-ray pinhole monitor. The aberration and point spread function, which would cause image blur, were evaluated. A beam-based calibration scheme was used by varying the beam size with different quadrupole settings and fitting them with the corresponding theoretical values. We updated the original X-ray camera with a new camera having a 5-μm-thick LuAG/Ce scintillator, and the imaging result shows greatly decreased image blur. |
| تدمد: | 2210-3147 1001-8042 |
| DOI: | 10.1007/s41365-018-0477-y |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::6c4a8608167eed09c8526e2a7efc2b8f https://doi.org/10.1007/s41365-018-0477-y |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........6c4a8608167eed09c8526e2a7efc2b8f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 22103147 10018042 |
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| DOI: | 10.1007/s41365-018-0477-y |