云计算用于 G-M计数器实验的数据处理

基于云计算原理,用Python及Flask设计了一个辅助G-M计数器及放射性衰变统计规律实验数据处理的程序,可不受地域及设备的限制快速实现数据计算、G-M计数管坪曲线和放射性衰变统计规律绘图等功能.

放射源实时监管与预警系统设计

设计了以STM32单片机为核心控制模块的放射源实时监管与预警系统。该系统使用G-M计数器与GPS导航定位模块,通过物联网通信模块的GPRS技术将放射源的定位信息与剂量率信息发送至移动设备中的放射源监控软件,并可在放射源状态出现异常时及时预警,使监管人员立即采取应急措施,实现了对于放射源实时监管与预警。放射源实时监控设备性能测试显示其灵敏度为0.06 s^(-1)/(nGy/h),能量线性度为98.72%,稳定性为10.9%,重复性为4.05%。

智能定标器的设计与实现

介绍使用现代 EDA手段设计定标器的原理和实现方法 .新的定标器利用 FPGA技术实现对系统中大量电路进行集成 ,结合 AT89C5 1单片机进行控制和处理 ,并增加数据存储功能和 RS2 32接口 ,简化了系统结构 .

Calculation of Energy Response of Cylindrical G—M Tubes with EGS4 Monte Carlo Code

The energy responses of Ka of two types of cylindrical G-M counter tubes were calculated using an electron-photon cascade Monte Carlo code,EGS4.One type of the G-M counter tubes was GJ4401 (sensitive length 9cm,diameter 1cm),the other was J5 (sensitive length 2cm,diameter 0.3cm),the restricted sampling technique of source photon was used.Good tendency agreements between the simulations and experiments were achieved for gamma radiation with energies ranging from 40keV to 1.25 MeV.For GJ4401,the difference of response between simulations and experiments at 662 keV was 34% and for J5 the difference was 27%.