Objective To investigate the difference in imaging quality and X ray dose for plain film of lumbar vertebrae and abdomen when using blue screen or green screen.
目的探讨感蓝、感绿不同的屏片体系，在腰椎和腹部平片上形成影像质量及入射剂量的差异。
VCT obtained isotropic high resolution while reducing patient doses through the improvement of X ray detection efficiency to truly realize the goal of balancing high quality images and low X ray dose.
VCT在实现各向同性高分辨率的同时努力提高X射线的有效利用率，降低病人剂量，真正实现了高图像质量和低剂量的和谐。
They found spots where radiation levels exceeded 100 microsieverts per hour, about the same dose as a chest X-ray.
他们发现辐射量已经超过了每小时100微西弗，这和做一次胸透所承受的辐射量相当。
Participants were randomly assigned to receive three annual screenings with either the low-dose spiral CT or the standard chest X-ray.
参与者被随机地指定做一种每年一次共三次的影像学检查——低剂量螺旋CT或标准X射线胸透。
He calculated backward to figure out how big an X-ray dose would be needed to get the kind of images the machines produce.
于是他反向推算了一下扫描仪生成符合机场安检要求的图像所需的X射线剂量。
The scanning machines, called "backscatter scanners," deliver a dose of ionizing radiation equivalent to 1 percent or less of the radiation in a dental X-ray.
扫描机，所谓的“反射散射扫描仪”，发射出的电离辐射剂量相当于牙科辐射X射线的1%或更少。
In fact the astronauts whizzed through in a matter of hours, receiving a radiation dose no greater than a medical X-ray.
事实上，宇航员们仅用了几个小时就穿过了这一层，受到的辐射量和接受一次X光透视检查差不多。
We initially questioned whether these were real at all, as a full body X-ray would expose the girls involved to an unhealthy dose of radiation.
一开始我们询问这是否是真的，因为全身X光照射会让这些姑娘受到有害剂量的辐射。
Objective: to observe the dose rate effect of adaptive response of thymocyte apoptosis and cell cycle progression induced by low dose X ray radiation.
目的：观察X线低剂量辐射诱导胸腺细胞凋亡和细胞周期进程适应性反应的剂量率效应。
Objective To study the relationship between X - ray tube potential and patient dose, and to explore the way to reduce the dose.
目的研究摄影管压与受检者剂量的关系，探讨减少受检者剂量的方法。
Objective: to surveil the individual dose that the X-ray doctors received from radiation, evaluate and analyse the effect of preventing radiation and the affecting factors.
目的：监测放射科医师个人剂量当量，评价与分析放射防护效果和影响因素。
Objective:To investigate CT simulation scan in recurrent nasopharyngeal carcinoma to control x-ray dose in visual nervous.
目的：探讨CT模拟在鼻咽癌局部复发适形放疗中控制视神经剂量中的应用价值。
The purpose of digital photography is to greatly decrease patient's acceptable dose, and to improve the quality of X-ray image.
实现数字化摄影的目的，就是为了在提高X线影像质量的同时，大幅降低患者的接受剂量。
Objective To estimate the dose of medical diagnostic X-ray workers.
目的为了估算医用诊断X射线工作者的剂量。
Objective to explore the effect of long-term low-dose X-ray on the blood system and genetic material in the health workers and to provide basis for protecting the radiological health workers.
目的探索长期接触低剂量X射线对医务人员血液系统及其遗传物质的影响，为当前放射医务人员的卫生防护工作提供依据。
The quantity and the speed of creating image of the industrial CT closely relate to the accelerator's focus, the highest X-ray energy, X rays dose and dose uniformity.
加速器电子束的焦点、X射线的最高能量、X射线剂量及均匀性与工业CT成像的质量和速度密切相关；
Conclusions To reduce or control chest fluoroscopic proportion will decrease surface dose from diagnostic X-ray of patients.
结论减少或控制透视比例，降低受检者群体的体表剂量，以减少医疗照射对人体造成的危害。
We treated 1008 children with cutaneous hemangioma with low dose superficial X-ray.
用相对低剂量浅层X线治疗儿童皮肤血管瘤1008例。
Conclusion the heightening of dot opacification degree in ocular lens of X-ray workers might be related with them exposed to long low-dose radiation.
结论医用X线工作人员晶状体点状浑浊程度的增高可能与长期接触小剂量X线照射有关。
Objective: To study the effect of low-dose medical X-ray exposure on micronucleus yield in workers, and provide valuable information for prevention of occupational diseases.
目的：探讨医用X射线对工作者做微核产额的影响，为日常的健康监护工作提供参考。
Objective to monitor the dose of the radiation monitoring, to assess the safety and analyze the radioactivity exemptions of the X-ray luggage inspection system at an airport.
目的检测某机场X射线行李包检查系统辐射，并进行辐射安全性评价和放射性豁免分析。
Methods Using CT performance phantom, dose phantom and X-ray dose survey meter to test all specifications of CT performance that were demanded by the state regulations.
方法使用性能检测模型、剂量模型、剂量仪，按照卫生部规范对CT性能指标逐项检测分析。
The results showed that low dose superficial X-ray in the treatment of hemangioma in children is of high cure rate, safe, painless, and has no scar formation.
结果说明低剂量X线治疗血管瘤治愈率高，安全可靠，无痛苦，无瘢痕。
Results the chromosome aberration in all the group of treated by low dose MMC was lower than that in the 2gy X-ray group.
结果所有低剂量mmc处理组小鼠骨髓细胞染色体畸变率均低于单纯大剂量照射组。
Prenatal radionuclide dose or technical factors of X-ray exposure should be recorded to facilitate estimation of fetal dose.
产前放射性剂量或技术因素的X射线照射应记录，以促进胎儿剂量估计。
Objective: To study the chromosome aberration effect of low-dose occupational radiation exposure in medical X-ray workers.
目的：了解职业性低剂量外照射对医用X射线工作者的染色体畸变的影响。
An intelligent control system has been designed using the single chip and the related circuit, and with the assemble language. It is connected with the common X-ray units to control the exposure dose.
应用单片机和相关电路，采用汇编语言编程，设计智能控制系统，与普通X线机联机，进行曝光控制。
Possibilities for adjustment of the dose characteristics at the press of a button: the characteristics are automatically adjusted for the chosen X-ray storage medium for all applications.
按下按钮时，剂量特征调节的可能性：对于所有应用中所选的X光存储介质可自动调节特征。
Possibilities for adjustment of the dose characteristics at the press of a button: the characteristics are automatically adjusted for the chosen X-ray storage medium for all applications.
按下按钮时，剂量特征调节的可能性：对于所有应用中所选的X光存储介质可自动调节特征。
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