Absolute measurement of photon flux for synchrotron radiation hard X-rays

doi:10.3788/OPE.20172511.2845

	Absolute measurement of photon flux for synchrotron radiation hard X-rays
	Wang, Pei-Wei ; Zhao, Yi-Dong; Zheng, Wei-Ning ; Li F(李凡); Zhao YD(赵屹东); Li, Hua-Peng; Li HP(李华鹏); Li, Fan
刊名	Optics and Precision Engineering光学精密工程
	2017
卷号	25 期号:11 页码:2845-2851
ISSN号	1004924X
DOI	10.3788/OPE.20172511.2845
其他题名	同步辐射硬X射线光子通量的绝对测量
文献子类	Article
英文摘要	The photon flux of the synchrotron radiation hard X-rays was measured in Beijing Synchrotron Radiation Facility (BSRF) using a free-air ionization chamber. Absolute air-kerma can be obtained with the free-air ionization chamber. The photon flux was calculated based on the relation between air-kerma and flux in the fundamental quantities and units for ionizing radiation. Because the photon flux changes over time during the measurement, an online monitoring system was applied, and the uncertainty of which is 0.03%. The air attenuation correction factor and ion recombination correction factor were measured at 15 keV synchrotron radiation X-rays. The measurement results show that the absolute air-kerma rate at 15 keV synchrotron radiation X-rays is 0.239 Gy/s, accordingly, the photon flux of the source is 5.28×109photons/s, the relative uncertainty is 0.68%. © 2017, Science Press. All right reserved.
语种	中文
CSCD记录号	CSCD:6122336
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284253]
专题	中国科学院高能物理研究所
作者单位	1.University of Chinese Academy of Sciences, Beijing; 100049, China 2.National Institute of Metrology, Beijing; 100029, China; 3.Beijing Beiyijichuang Company, Beijing; 101300, China; 4.Institute of High Energy Physics, Chinese Academy of Sciences, Beijing; 100049, China;
推荐引用方式 GB/T 7714	Wang, Pei-Wei,Zhao, Yi-Dong,Zheng, Wei-Ning,et al. Absolute measurement of photon flux for synchrotron radiation hard X-rays[J]. Optics and Precision Engineering光学精密工程,2017,25(11):2845-2851.
APA	Wang, Pei-Wei.,Zhao, Yi-Dong.,Zheng, Wei-Ning.,李凡.,赵屹东.,...&Li, Fan.(2017).Absolute measurement of photon flux for synchrotron radiation hard X-rays.Optics and Precision Engineering光学精密工程,25(11),2845-2851.
MLA	Wang, Pei-Wei,et al."Absolute measurement of photon flux for synchrotron radiation hard X-rays".Optics and Precision Engineering光学精密工程 25.11(2017):2845-2851.