a measuring instrument that measures the amount of ionizing radiation

the influence of temperature change on the high pressure ionization chamber and its a- f converter output circuits is studied. the experimental result is useful for the design of these devices.

研究了高气压电离室、输出电路部分随温度改变时对脉沖信号频率产生的影响，为电离室及输出电路的设计提供了依据。

for particle identification at the radioactive ion beam line in lanzhou (ribll), a two-fold ionization chamber which consists of two anodes striped in x and y direction separately was set up.

描述了一种用于ribll粒子鑒别的阳极分别在x、y方向分条，共用阴极，纵向场双叠层气体电离室的结构和工作原理。

in quick scanning radiography system, the time respond speed of array gas ionization chamber effects the image clarity directly.

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。

a transverse field gas ionization chamber for particle identification at the radioactive ion beam line in lanzhou (ribll) is described.

描述了一种将用于兰州放射性束流线较重离子鑒别的多阳极横向场电离室。

transfer their imrt plans to the 2 dimensional ionization chamber array and phantom scanned by ct, and then generate quality assurance plan(qa plan).

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。

meantime, use 2 dimensional ionization chamber array for relative dose verification in 30 imrt plans.

同时30例患者计划利用二维电离室矩阵进行相对剂量验证。

the program is designed for processing the multi-parameter experimental data acquired by the large area position sensitive ionization chamber in nuclear reactions.

本程序是为离线分析由大面积双维位置灵敏电离室采集的多参数核事件数据设计的。

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。

in absolute dose verification, ionization chamber with small volume is far more valuable. so we recommend the small volume ionization chamber.

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。

a gas-filled ionization chamber uses this principle .

充气电离室就是利用这一原理。

the principle of using an air ionization chamber to monitor doses in heavy ion radiation research is described.

论述了采用平行板电离室在重离子辐射生物研究中监测剂量的原理。

the ionization chamber itself can be used to measure the heavier low energy ions with good particle identification ability and can provide information about energy as well as x and y coordinates.

电离室可以测量较重的低能离子，有较好的粒子鑒别能力，能给出能量信息及两维位置信息。

the experiment results show that the time response of ionization chamber in profile gauge meets the requirement of on-line hot strip measuring.

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。

this paper presents the construction, the performance, and the usage of a thin window monitoring ionization chamber used for the calibration of x ray exposure meter.

本文描述用于照射量仪校準工作的薄窗监测电离室的结构、性能及使用方法。

a double casing sealed structure is used in the ionization chamber with thin windows of large diameter.

电离室采用大口径双重密封结构，制作工艺难度大，要求高。

this system consists of high pressure ionization chamber detector filled with xe gas, 8051 single chip control unit and low current measuring amplifier.

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。

the characteristics, structure, and working principle of the gridded ionization chamber are discussed.

介绍了屏栅电离室的特点、构造与工作原理。

use ionization chamber for absolute dose verification, and analyze the effect of volume of ionization chamber on absolute dose measurement.

一方面研究利用电离室对调强适形放射治疗计划进行绝对剂量验证，分析电离室体积在测量绝对剂量中的影响。

the continuous monitoring system consists of a high pressurized ionization chamber , integrated weak current amplifier, v/f converter and intelligent data recorder.

该系统由高气压电离室，集成化弱电流放大器，v/f变换器和智能化数据记录仪组成。