It has become the focus of the theoretical study and application with its great spatial resolution and low X-ray dose .
其具有空间分辨率高、 X 射线 剂量小等特点,因此得到了理论研究与实际应用界的高度关注。
A study of the effect of X-ray tube voltage on image quality and radiation dose
X线管电压对图像质量和放射 剂量影响的研究
Introduction of diagnose X-ray dose testing technology
医用诊断 X 射线 剂量探测技术概述
Part I Investigation of the model test PURPOSE w_315 To approve the probability of reducing X-ray dose by the vitro model test and to select reasonable low-dose ( mA ) and threshold value of the lowest dose .
第一部分体模实验研究目的w_354:通过体外模型实验证实在CTPA检查中降低 射线 剂量的可能性,并筛选出合理低剂量(mA)和最低剂量阈值。
However with the development of the radiography hygiene and the public self-protect-raising more and more people take notice in the problem of the X-Ray dose .
然而随着放射卫生学的发展以及公众自我保护意识的增强,人们越来越注意到 X线 检查 中 的 放射 剂量问题。
The frequency difference Δ f between the resonant frequency f_Moof magnetron and the proper frequency of accelerating tube influences directly the main physics indexes such as X-ray energy and dose rate of the medical standing wave linear electron accelerator .
医用驻波电子直线加速器中磁控管的谐振频率fM和加速管的固有频率fo之差Δf对加速器的主要物理指标,如 射线能量, 剂量率及其稳定性等起着直接的影响。
Objective To evaluate the imaging quality and X-ray dose of the use of application DSA ( digital subtraction angiography ) equipment .
目的探讨应用全数字化血管造影机检查的图像质量及 X 射线 剂量。
Methods CHO cell line was exposed to X-ray of different dose ( 2-20Gy ) . The DNA damage effects were determined by 3H-TdR incorporation test .
方法:用2~ 20GyX 射线照射CHO细胞株,通过~3H-TdR掺入法检测CHO细胞DNA损伤;
Numerical Simulation of Ionizing Radiation Effects and Study on the X-ray Dose Enhancement Effects for Integrated Circuit
集成电路电离辐射效应数值模拟及 X 射线 剂量增强效应的研究
Conclusion FISH is a feasible way to analyse chromosome aberrations of X-ray workers and reconstruct dose .
结论FISH方法是分析 X 射线工作者染色体易位率进行 剂量重建的可行方法。
Monte-Carlo calculation of X-ray dose enhancement factor nearby high Z metal connected interface
用蒙特卡罗法计算 X 射线在重金属界面的 剂量增强系数
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;
X-ray stray radiation dose levels in the therapy rooms of 6 medical electron linear accelerators working at 6 8 and 18 MV respectively have been measured using FARMER 2570 / 1A dosemeter and FJ 347A X γ dosemeter .
用Farmer剂量仪测量了3种类型6台医用电子直线加速器在 放射治疗室内的杂散 辐射 剂量。结果可见,X射线能量在6、8、18MV时,治疗室内杂散辐射剂量水平是不高的。
This paper introduces X-ray intensity absorbed dose equivalent dose of X - CT radiation and the interaction between X-ray and human body . The theory and formulas related to the measurement of X-CT radiation dose are also involved in .
介绍了X-CT辐射 X线强度、吸收 剂量、当量剂量、X线与人体的相互作用、X线哀减剂量测量的理论依据及有关公式推导计算测量。
X ray damage to the body is proportional to the absorption of X-ray dose .
X线对机体的损害程度与吸收 X线 量的大小有关。
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。
It is because the quality of CT images with X-ray radiation dose is closely related to and directly proportional relationship .
CT图像的质量与 X线辐射 剂量密切相关,且成正比例关系。
Many new CT equipments used higher X-ray dose in order to get high quality medical images .
为了得到高质量的医学图像,很多CT设备加大 X线 剂量。
Apply semiconductor detector to measure diagnosis x-ray dose
半导体探测器在诊断 X 射线 剂量测量中的应用
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。
Methods From 1971 to 1998 . 7 patients with kimura 's disease were treated with low energy X-ray electron beam or high energy X-ray . The total dose of 10 ~ 40Gy was delivered and the therapeutic effects were retrospectively reviewed .
方法回顾性分析了1971~1998年放疗的7例病人,使用低能X线、电子线或高能 X线治疗, 剂量10~40Gy。
Dynamic Observation on Relationship between Peripheral Blood Lymphocyte Micro-nucleus Frequencies of Medical Diagnostic X-ray Workers and Radiation Dose Micronucleus formation in peripheral blood lymphocyte among pupils in Taiyuan City
医用诊断 X线工作者外周血淋巴细胞微核与 剂量关系动态研究太原市小学生外周血淋巴细胞微核观察
Study of hard X-ray dose enhancement effects for some kinds of semiconductor devices
几种半导体器件的硬 X 射线 剂量增强效应研究
Some examples would be X-ray dose limitations or imaging system design constraints when imaging a moving object or X-rays being obstructed when passing through high-density region of objects any of which could result in loss of some projections .
例如,在实际 X 射线扫描物体过程中,由于 X 射线 剂量的限制或成像系统设计的限制、或者X射线穿过物体高密度区域时都可能导致一部分投影数据的丢失。
Study on Relationship between X-ray Tube Potential and Patient Dose
摄影管压与 受检者 剂量关系研究
Methods Thermoluminescence and tissue-equivalent anthropomorphic phantom were used to measure the X-ray radiation dose in patients dealt with the hepatic intervention in 85 patients .
方法应用热释光测量法、非均匀组织等效拟人体模型实验数据结合实际操作条件等方法,对85例行肝脏介入操作的患者进行 辐射 剂量测量。
Surface doses were obtained from measured X-ray tube output data . The correlative changes were observed among X-ray tube voltage surface dose air kerma and the detection threshold concentration of iodine .
观察 X线管电压、表面 剂量、比释动能以及碘探测阈浓度之间的变化关系。
The measurement of hard X-ray dose in non-circular cross-section Tokamak
非圆截面环流器硬 X 射线 剂量测量
They require that to decrease the X-Ray dose in not to affect the diagnosis as far as possible . Summons the low dose CT equipment immediately the birth .
人们要求在不影响诊断的前提下,尽可能地减少 放射 剂量,随即呼唤低剂量CT设备的诞生。
Determination of the total x-ray dose in the SiO_2 layer of backside electron irradiated ICCD images
对背面电子照射ICCD成象器氧化硅层 X 射线总 剂量的测量
[医] X线[剂]量