Data Collection System Of α Energy Spectum Based On ARM9 To Measure Radon

In people's daily life, The impacts on human health caused by radon and progeny gradually has attracted widespread attention. The measurement of the radon and progeny has also become very important, on one hand, it is related to human health.On the other hand,it plays an important role in geological exploration , earthquake prediction, and other fields . However, the measurement of radon is such complex questions that it involves multi-disciplinary such as the nuclear technology, electronics technology, the computer science technology, the geoscience, the environmental science and so on.The measurement of radon has a number of ways. This thesis starts with theα-ray spectrometry, aims at domestic and international trends in the development of electronic technology, combines the features of the spot, and carries on the design in view of data collecting system of a energy spectrum. In several key technologies, this paper also does a systematic study on Multi-Channel Analyzer (MCA) and the intelligence apparatus.This thesis has made a detailed exposition on data collecting system of a energy spectrum to measures radon based on ARM9. The system uses system microprocessor S3C2410 based on ARM920T as controlling core and fixes the 240×320 touch-screen TFT-LCD, and measures data store into the SD card. Taking S3C2410 as core hardware system and transplanting WinCE Net 4.2, the operating systems carry on the effective management to the hardware and the related documents. By complilating the stream interface device driver processing, it makes the system possible to operate on the Multi-Channel Analyzer (MCA) and Temperature Humidity Sensor and other hardwares. Under the EVC environment, the design of application software enables this system to demonstrate and store spectral line automatically, and completes a energy spectrum data processing work automatically. Moreover the measurement result will be saved to the SD card, expanded the storage amount effectively and facilitating data Supervisory Computer processing. Finally the storage format has been designed regarding the data in the storage medium and there are two kinds of preserved methods. And it will facilitate the operation.