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| Research on Kα Energy Spectrum and Fluorescence Yield of Samarium |
| HUO Bin-bin1,2,CHEN Cheng2,3,WU Jin-jie2,ZUO Guo-ping1,ZHANG Shuai2,4,LI Ting2,3 |
1. University of South China, Hengyang, Hunan 421000, China
2. National Institute of Metrology, Beijing 100029, China
3. Chengdu University of Technology, Chengdu, Sichuan 610059, China
4. China University of Petroleum, Beijing 102200, China |
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Abstract The relationship between fluorescence quality and thickness of radiator Sm2O3 or secondary filter CeO2 by simulating fluorescence instrument with MCNP program was described. When the thickness of Sm2O3 reached 0.4mm, K fluorescence yield is saturated. When the thickness of CeO2 was 0.55mm, Kα fluorescence purity optimum value is 96.6%. The results show that the higher X-ray tube voltage is, the bigger fluorescence yield is. Fluorescence purity reached optimum 82.26% when X-ray tube voltage was 80kV.
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Received: 23 May 2016
Published: 27 September 2017
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2017, Vol. 38 
