Gamma radiation source identification algorithm for multisource radiation environment

Gamma Ray Spectroscope (GRS) is a system to detect, measure, analyze and display the Gamma Ray Spectrum. It consists of 4k Multi Channel Analyzer (MCA), 1.5” × 1.5” Thallium activated Sodium Iodide(NaI(Ti)) scintillation detector and a PC based MCA software. MCA has all the required facilities to handle the scintillation detector and to convert the signals from detector into meaningful data. MCA software is used to display the Gamma spectrum and important parameters. GRS is also used for identification of gamma radiating source. This paper deals with the algorithm that has been employed to identify the gamma sources. The Gamma source identification algorithm is a peak scanning based algorithm and scanned data is then matched with library data. The complexities of signal processing and data handling are reduced to great extent without much compromise in the accuracy of identification. Algorithm was developed with appropriate weightage to speed and accuracy.