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- exposure dose distribution 曝光量分布
- The dose distribution was analyzed by dose volume-histogram (DVH). 根据剂量-体积直方图等参数对两者剂量分布进行分析和评估。
- The dose distribution on the central axis plane was measured by film badge. 用胶片法测不同窄条野不同能量下射野中心轴平面等剂量分布,分析等剂量曲线特点。
- 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。
- 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。
- Objective: To evaluate the dose distribution of conformal radiotherapy in prostate cancer. 摘要目的:评估前列腺癌适形放疗计划的剂量分布特点。
- 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。
- The dose distribution in nasopharyngeal GTV and CTV were satisfactory both in CT simulated and conventional planning. 不论是CT模拟计划还是常规模拟计划 ,鼻咽GTV和CTV均可有满意的剂量分布。
- The dose distribution in nasopharyngesl GTV and CTV weresatisfactory both in CT simulated and conventional planning. [结果]不论是CT模拟定位还是X-线常规模拟定位,鼻咽GTV和CTV均可有满意的剂量分布。
- Because heavy ion has the characters of high-LET value and sharp Bragg peak for dose distribution. 因为重离子具有高传能线密度(LET)及剂量分布呈尖布喇格峰的特点。
- 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。
- Objective To study the TPS dose distribution of the radiation therapy with wedge for upper-thoracic esophageal cancer. 目的:探讨楔形板在胸上段食管癌放疗应用中对TPS剂量分布的影响。
- 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。
- 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。
- 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。
- This procedure of dose distribution in radiotherapy treatment was similar to that of the back-projection in 2D CT image reconstruction. 立体定向放射治疗的剂量累积过程和二维CT图像重建中的直接反投影过程是类似的。