즉발응답형 자발 중성자 검출기용 고이득 신호 증폭회로 설계 = Design of High-Gain Signal Amplifier Circuit for Prompt-Response Self-Powered Neutron Detector

다국어 초록 (Multilingual Abstract)

Self-Powered neutron detectors (SPND) detect current generated from interaction of neutron flux with emitter materials. They are inside a reactor in NPP (Nuclear Power Plant), and currently used to monitor the output and control the operation. Since the signal level of prompt-response SPND is very small (-nA), an analog circuit is necessary to amplify the current signal, and to convert it into voltage. This circuit needs to perform an anti-aliasing function to reduce distortion at the stage of digital conversion. In this paper, a systematic design process for high-gain amplification circuit is presented. Based on error analysis of the circuit, parameters are selected to satisfy design requirements. A third-order anti-aliasing filter is designed. A prototype circuit is built. Measured performance of the circuit confirms that the circuit satisfies all design requirements and validates the efficacy of the design to be used in practical environments.

참고문헌 (Reference)

1 Jung, W., "Op Amp applications handbook" Newnes 2005

2 Nash, E., "Errors and error budget analysis in instrumentation amplifier applications" Analog Devices 1999

3 Todt, W. H., "Characteristics of self-powered neutron detectors used in power reactors" 1996

4 Zumbahlen, H., "Basic linear design" Analog Devices 2007

5 Yusuf, S. O., "Analog and digital dynamic compensation techniques for delayed self-powered neutron detectors" 106 (106): 399-408, 1990

6 Goldstein, N., "A survey of self-powered detectors-present and future" 26 (26): 916-923, 1979

7 Kitchin, C., "A designer’s guide to instrumentation amplifiers" Analog Devices 2006