| 激光防护镜光密度测量方法及其不确定度评定 |
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| 引用本文： | 王嘉睿,杨在富,杨景庚,康宏向,马萍,梁洁,钱焕文. 激光防护镜光密度测量方法及其不确定度评定[J]. 医疗卫生装备, 2009, 30(10): 115-116 |
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| 作者姓名： | 王嘉睿 杨在富 杨景庚 康宏向 马萍 梁洁 钱焕文 |
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| 作者单位： | 军事医学科学院,放射与辐射医学研究所,北京,100850 |
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| 基金项目： | 全军"十一五"医药卫生专项课题资助 |
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| 摘 要： | 介绍了常规法、拓展法和替代法等3种激光防护镜光密度测试方法,对其进行了合成不确定度评定。常规法适宜测量小于3的光密度;拓展法适用于测量大于等于3的光密度;替代法测量较大范围内的光密度值,它具有测量过程相对简便和不确定度较小的优点,其前提是选择合适衰减比的衰减片及合适灵敏度的仪器。
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| 关 键 词： | 光密度 测试方法 不确定度 |
Methods and Uncertainty Evaluation on Optical Density of Laser Safety Glasses |
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| Affiliation: | WANG Jia-rui, YANG Zai-fu, YANG Jing-geng, KANG Hong-xiang, MA Ping, LIANG Jie, QIAN Hnan-wen (Beijing Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing 100850, China) |
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| Abstract: | Three measurement methods on the optical density（OD） of laser safety glasses are presented,namely regular method,scale expansion method and substitution method,the measurement uncertainties of which are analyzed and evaluated respectively.The regular method is preferable when OD〈3,and shall be substituted with the scale expansion method when OD≥3.The substitution method can be used to measure a large scale of OD,if only the standard attenuator is property selected and the detector is sensitive enough.It has many advantages including relatively simple procedure and less uncertainty. |
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| Keywords: | optical density measurement uncertainty |
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