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4. The Basis for Design and Manufacture of a DSP-Based Coincidence Spectrometer

Author

Pham Dinh Khang, Tuong Thi Thu Huong, Nguyen Xuan Hai, Dang Lanh, Nguyen Nhi Dien, and Pham Ngoc Tuan

Subjects
Digital electronics, Signal processing, Analogue electronics, Spectrometer, Computer science, business.industry, System of measurement, Analytical chemistry, Electronic engineering, Field-programmable gate array, business, Coincidence, Digital signal processing
Abstract

The coincidence technique and the coincidence spectroscopy have been developed and applied for over 40 years. Most of popular coincidence measurement systems were based on analog electronics techniques such as time to amplitude conversion (TAC) or logic selecting coincidence unit. The above-mentioned systems are relatively cumbersome and complicated to use. With the strong growth of digital electronics techniques and computational science, the coincidence measurement systems will be constructed simpler but more efficient with the sake of application. This article presents the design principle and signal processing of a simple two-channel coincidence system by a technique of digital signal processing (DSP) using Field Programmable Gate Arrays (FPGA) devices at Nuclear Research Institute (NRI), Dalat.

Published
2013
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