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- permissible exposure dose 容许照射剂量
- Both are over the Permissible Exposure Limit (5mg/m3)promulgated by OSHA, USA. 均超过职业接触柴油机废气颗粒物有关联的美国OSHA的容许接触限值5mg/m3。
- On this basis, the Secretary of Labor had set the permissible exposure level for workers at 1 ppm (part per million), which he considered the lowest feasible level. 根据这一点，劳动部长已把工人的允许接触水平规定为百万外之一，他认为这是最低的可行性水平。
- The eyes of rabbit received 0.0125 GY single exposure dose of fast neutron from Amc-Be neutron source. Am-Be中子源;0.;0125Gy快中子照射北京灰兔双眼及全身;照射时间为150分钟。
- There is agreement in the medical research community that current Occupational Safety &Health Administration permissible exposure limits fail to protect workers from beryllium. 医学研究社团一致认为，职业安全和健康管理部门现在所允许的暴露限制条件，不能够保护工人免受铍的危害。
- Methods The exposure dose, imag ing time and image quality were compared in the two digital imaging system. 方法对两种数字化成像系统的曝光剂量、成像时间和图像质量进行比较分析。
- Cathay Pacific has also adopted an additional internal action level to ensure that crew will not exceed the recommended exposure dose. 国泰航空已采用相关措施以确保机组人员不超过建议的年辐照量。
- A real-time exposure dose control algorithm for DUV excimer lasers in a step and scan projection lithography is presented. 提出了一种面向步进扫描投影光刻机的深紫外准分子激光实时曝光剂量控制算法。
- In each case that required a computed tomography scan of the pelvis, the calculated radiation exposure dose to the fetus was greater than 5 cGy. 每个需要骨盆CT扫描的患者，其胎儿接受的放射剂量经计算大于5cGy。
- Dose equivalent of exposure dose in mammary is the highest, those in thyroid is the secondary, and genitical gland area has the lowest dose. 各敏感器官以乳腺受照剂量当量最大，其次为甲状腺，性腺区最少。
- All dose equivalent of exposure dose in sensitive organs in non-projection center in high KV photography lower than those in low KV photography. 高管电压摄片时，非投照中心点各敏感器官受照剂量当量均比低管电压摄片时低。
- Conclusion When the KV is as high as possible and the exposure field is as small as possible, each dose equivalent of exposure dose of organs out of exposure field is decrease. 结论：胸部摄片时管电压越高，照射野越小，照射野外各部位受照剂量当量亦越少。
- The exposure dose of most of patient's neck during operation exceeded 50 mSv, a shielding instrument containing lead for the patient's neck during operation was needed. 可选择铅和含铅材料作为防护材料。
- "Is the maximum number of permissible exposures documented with a system to track the number of exposures? 可允许的最大曝光次数是否有文件规定并有系统对曝光次数进行跟踪？"
- Although spiral CT has the disadvantage of high X-ray exposure dose, high cost and adverse reaction due to contrast medium, it is of great value in diagnosing breast carcinoma. 虽然螺旋CT检查的照射剂量较大、检查费用高及对比剂带来的副作用，使它不适宜用于乳腺癌的普查，但它在乳腺癌高危人群中对于早期诊断乳腺癌方面具有较高的价值。
- maximum permissible exposure (MPE) 最大允许曝射量
- Presents the concepts of exposure cell and its layered model in order to get more accurate exposure dose of indoor occupants during the short period of incidents. 摘要为了准确获得短时间内人员在室内微环境中的暴露剂量，提出了暴露单元及分层模型的概念。
- Objective To investigate the magnitude of dose equivalent of exposure dose in different organs of human being using high and low KV X-Ray photography in chest. 摘要目的：探讨胸部高、低管电压X线摄片对人体不同组织器官的受照剂量当量大小。
- Both DR and CR have raised the picture quality and lower the exposure dose than conventional radiogram to varying degrees, and also have higher efficiency and more profit by shortening the examination and review time, but DR dominates over CR. DR和cr均提高了图像质量,不同程度减低了被检者所受X线照射量,通过缩短检查和发报告的时间加快了工作效率,带来更高的效益,DR较之cr更具优势。
- The results of numerical simulation show the lesion of photoaging skin can be selectively damaged if the wavelength, exposure duration and exposure dose of irradiated ligh are reasonably selected. 数值模拟的结果表明:合理选择光辐射波长、辐射曝光时间和曝光剂量,可以选择性的热破坏光老化皮肤中的病损组织。
