[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5516/NET.2007.39.6.717

TIME-DOMAIN TECHNIQUE FOR FRONT-END NOISE SIMULATION IN NUCLEAR SPECTROSCOPY

Neamintara, Hudsaleark (Department of Nuclear Technology, Faculty of Engineering, Chulalongkorn University)
Mangclaviraj, Virul (Department of Nuclear Technology, Faculty of Engineering, Chulalongkorn University)
Punnachaiya, Suvit (Department of Nuclear Technology, Faculty of Engineering, Chulalongkorn University)

Publication Information

Nuclear Engineering and Technology / v.39, no.6, 2007 , pp. 717-724 More about this Journal

Abstract

A measurement-based time-domain noise simulation of radiation detector-preamplifier (front-end) noise in nuclear spectroscopy is described. The time-domain noise simulation was performed by generating "noise random numbers" using Monte Carlo's inverse method. The probability of unpredictable noise was derived from the empirical cumulative distribution function via the sampled noise, which was measured from a preamplifier output. Results of the simulated noise were investigated as functions of time, frequency, and statistical domains. Noise behavior was evaluated using the signal wave-shaping function, and was compared with the actual noise. Similarities between the response characteristics of the simulated and the actual preamplifier output noises were found. The simulated noise and the computed nuclear pulse signal were also combined to generate a simulated preamplifier output signal. Such simulated output signals could be used in nuclear spectroscopy to determine energy resolution degradation from front-end noise effect.

Keywords

Time Domain Noise; Measurement-Based Noise Simulation; Preamplifier Noise; Nuclear Pulse Signal; Energy Resolution;

Citations & Related Records

Times Cited By Web Of Science : 2 (Related Records In Web of Science)

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