Handheld Research Of Natural Gamma Ray Spectrometry Detector

Gamma energy spectrum measurement is an important nuclear geophysical method, is toaddress the issue of earth science, environmental science and so on one of the main means.According to measured gamma ray energy spectrum, can obtain the total gamma radiation,uranium, thorium, potassium and other elements as well as other related elements and lithologic information, according to these information, we can not only for ore prospecting, and canbe applied to geological mapping, oil and gas exploration, looking for all kinds of metal andnonmetal mineral, etc. In order to more accurately obtain gamma spectrometry survey andanalysis of the results and can be applied to the wild field measurement, the research caneasily measure and deal with the handheld natural gamma ray spectrometry detector spectraldata is always a very important subject, handheld research of natural gamma ray spectrometrydetector is a very popular field both at home and abroad, it widely in the service of geologicalindustry, medical and health care, environmental monitoring, etc.This article in view of the traditional measuring instruments to collect the shortcomingsof low rate, large volume, lack of real time, first of all, the analysis of the development athome and abroad of gamma ray spectroscopy surve gap, on the basis of this puts forward theoverall design scheme of handheld natural gamma ray spectrometry detector; Second, detailedmeasurement control unit design and FPGA as the core to the ARM microcontroller as the coreof the design of the display unit, it gives the design of hardware circuit, Finally, in view of thesystem software analyzes the gamma energy spectrum measurement according to the detaileddesign of the software modules of the measurement and control unit and distributed switchingunit.