The realization and study of (21-301) keV monochromatic X-rays
文献类型：期刊论文
| 作者 | Wu, Jinjie; Wu, Chong; Li, Chengze; Hou, Dongjie; Guo, Siming
|
| 刊名 | Nuclear Instruments and Methods in Physics Research A
 |
| 出版日期 | 2019 |
| 卷号 | 927页码: 382-389 |
| 关键词 | Monoenergetic X-rays Bragg diffraction Monochromator Energy spectra Stability |
| DOI | 10.1016/j.nima.2019.02.024 |
| 英文摘要 | In order to achieve monochromatic X-rays of higher energy, and so as to calibrate the hard X-ray satellite-borne detectors and to test the energy response at high energy values, a hard X-ray test facility which is based on a single crystal monochromator was designed and built. The facility consists of four parts, namely the X-ray source, the collimating structure, the single crystal monochromator and the detectors. In this work, silicon crystals Si111, Si220, Si551 were utilized in the monochromator to achieve monoenergetic X-ray photons, which is based on crystal Bragg diffraction. By means of adjusting Bragg angle, different energy values can be obtained. The 21-301 keV monochromatic X-rays were realized and studied in this work. The experiment results indicate that there is a good linear relationship between monochromatic light flux and X-ray tube current. The broadening of energy spectra gets wider with increasing energy value, thus worsening the energy resolution. Stability of the hard X-ray test facility was studied, and results suggest that the energy stability is better than 0.4% within 50 h. Besides, the stability of monochromatic light flux is better than 1.4% within 50 h. Therefore, the hard X-ray test facility has a wide energy range and shows very good performance about stability. Thus, it can be used to carry out some experiments, especially to calibrate the hard X-ray satellite-borne detectors. This work will be helpful to the development of the X-ray astronomy. |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/282335]  |
| 专题 | 高能物理研究所_粒子天体物理中心 高能物理研究所_加速器中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Wu, Jinjie,Wu, Chong,Li, Chengze,et al. The realization and study of (21-301) keV monochromatic X-rays[J]. Nuclear Instruments and Methods in Physics Research A,2019, 927: 382-389. |
| APA | Wu, Jinjie,Wu, Chong,Li, Chengze,Hou, Dongjie,&Guo, Siming.(2019).The realization and study of (21-301) keV monochromatic X-rays.Nuclear Instruments and Methods in Physics Research A, 927, 382-389. |
| MLA | Wu, Jinjie,et al."The realization and study of (21-301) keV monochromatic X-rays".Nuclear Instruments and Methods in Physics Research A 927(2019): 382-389. |
入库方式： OAI收割
来源：高能物理研究所
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