Development of the α-ray spectrum data acquisition system based on the LPC2220

At present, α-ray spectrum data acquisition and processing system is poor intelligent performance, large volume and high power consumption. On the basis of the study of the on chip system microprocessor, a new α-ray spectrum data acquisition and processing system has being designed, which uses LPC2220, a on chip system uses 32 bit microprocessor with the ARM7TDMI-S as a core to make a embedded platform, to perform α-ray spectrum data acquisition and processing. the system matches a 1 M flash memorizer, a large screen LCD and small key board so that it has the advantages of simple hardware, real time performance, low power consumption and man-machine interface performance compared with traditional system. The testing result indicates the system operation is steady and reliable. (authors)