【摘要】 γ射线对人体的伤害是不易觉察的,在建材使用之前对建材进行放射性水平检测是减少放射性污染的重要手段。便携式γ能谱仪以嵌入式工控机PC/104为开发平台,采用PKD-01峰值保持器和PC/104配套的12位100kA/D采集卡实现能谱数据的智能获取,采用数字滤波的数据处理技术研制成软硬件相接合的高精度便携式γ能谱仪。介绍了该仪器的软硬件结构、特点、高精度的实现和仪器的整体性能指标及特点,系统还可用于Windows98/2000的操作系统中。更多还原

【Abstract】 γ-ray emitted by radioactive architectural material can hurt people invisibly,so the radioactive measurement of architectural material is most important before using them.The portable spectrometer is based on the embedded industry computer (PC/104) and employed the A/D integrated circuit with 12 bits and peak detector (PKD-01)to get the data of the γ-ray intellectually.The system employed digital filter to achieve the high precision.So it is a multi-channel spectrometer which consists of hardware and software.Described construction and characteristic of the hardware circuit and software.The main technical specifications of the system was also summarized.Discussed the application of the instrument in Windows 98/2000 and the application of this instrument based on portable computer.更多还原