充气电离室就是利用这一原理。
充气电离室就是利用这一原理。
模拟了一个散射光感器和一个电离室。
A scattering light sensor and an ionization chamber were simulated.
电离室电极用高原子序数的金属制造。
上述电离室可作次级标准伦琴计和防护剂量测量用。
All of them can be used as secondary standard Rontgen meter and in protection dose measurement.
该方法为电离室动态特性的研究提供了一种有效手段。
So this method provides an effective means for studying the dynamical characteristic of gas filled ionization chamber.
电离室采用大口径双重密封结构，制作工艺难度大，要求高。
A double casing sealed structure is used in the ionization chamber with thin Windows of large diameter.
另一方面利用二维电离室矩阵对治疗计划进行相对剂量验证。
Meanwhile, use 2 dimensional ionization chamber array for relative dose verification of IMRT.
把两种电离室分别放置到调强体模中在加速器下执行验证计划。
Both ionization Chambers are placed phantom respectively, and then carry out QA plan.
该谱仪系统由三部分组成，电离室主体、充气系统及电子学系统。
The system is composed of main body of the chamber, gas-filled and electronics system.
目的：探讨应用二维电离室矩阵在加速器日常质量保证中的可行性。
Objective: to discuss the feasibility of two-dimensional ion chamber array in daily quality assurance of accelerator.
仪器主要包括常压空气网栅脉冲电离室，信号放大与甄别和单片机系统。
Emanometer is composed of normal atmosphere air mesh grid pulse ionization chamber, signal magnify and screen unit and MCU system.
实验结果表明，凸度仪电离室的时间响应满足在线测量热轧钢板的要求。
The experiment results show that the time response of ionization chamber in profile gauge meets the requirement of on-line hot strip measuring.
描述了一种将用于兰州放射性束流线较重离子鉴别的多阳极横向场电离室。
A transverse field gas ionization chamber for particle identification at the Radioactive ion Beam Line in Lanzhou (RIBLL) is described.
给出了典型的测试数据，并与BZD-2型平板形电极电离室进行了对比。
The typical measurement data are given and a comparision is made with type BZD-2 parallel electrode neutron chamber.
本文介绍了测量金属及非金属材料厚度的测厚电离室系列的原理、结构及各种性能。
This paper introduces the principle, construction and performances of ionization Chambers for measuring the thickness of metal and nonmetal materials.
然后将治疗计划分别移植到经过CT扫描的二维电离室矩阵和调强体模，生成验证计划。
Transfer their IMRT plans to the 2 dimensional ionization chamber array and phantom scanned by CT, and then generate quality assurance plan (QA plan).
方法：利用电离室法测量平野、动态楔形野、物理楔形野的深度剂量和射野外周边剂量。
Methods: The depth doses and peripheral doses were measurement for open field and Enhanced Dynamic wedge field as well as physical wedge.
用电离室作辐射剂量学的绝对测量，用胶片法进行相对测量，给出了测量结果并进行了讨论。
The absolute dosimetry is determined using ionization chamber. The relative dose profile is measured by film. The test results are presented and discussed.
在快速辐射扫描成像系统中，阵列气体电离室时间响应速度的快慢将直接影响图像的清晰度。
In quick scanning radiography system, the time respond speed of array gas ionization chamber effects the image clarity directly.
在绝对剂量验证中使用小体积电离室更有价值，因此建议在剂量验证中最好使用小体积电离室。
In absolute dose verification, ionization chamber with small volume is far more valuable. So we recommend the small volume ionization chamber.
软X线稀有气体电离室作为软X线波段绝对探测器，是通过测量光电离子流得出光谱辐射强度。
The technique of soft X-ray ion chamber includes the measurement of the ion current as a function of rare gas pressure in the ion chamber.
该监测系统采用高气压氙气电离室作为探测器，以8051单片计算机作为控制主机，电路上采用弱电流测量方法。
This system consists of high pressure ionization chamber detector filled with Xe gas, 8051 single chip control unit and low current measuring amplifier.
进口工业网的S250型电离感烟探测器是一种双电离室型探测器，用于第一时间在火焰中感应燃烧物有形和无形的烟。
Model S250 ionization smoke detector is a dual chamber ionization type detector designed to respond to the first RACES of a fire by sensing both visible smoke and invisible products of combustion.
在治疗计划系统中算出电离室所在区域的吸收剂量为计划剂量，按验证计划照射测量到的电离室吸收剂量为实测剂量，将二者进行比较得出误差。
Ionization chamber area dose calculated in TPS is plan dose, while the dose measured by ionization chamber according to QA plan is actual dose, Compare plan dose and actual dose then get the error.
在治疗计划系统中算出电离室所在区域的吸收剂量为计划剂量，按验证计划照射测量到的电离室吸收剂量为实测剂量，将二者进行比较得出误差。
Ionization chamber area dose calculated in TPS is plan dose, while the dose measured by ionization chamber according to QA plan is actual dose, Compare plan dose and actual dose then get the error.
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