Research on development of multi - channel analyzer used for monitoring and warning radiation equipment

Nguyen Van Sy1, Dang Quang Thieu1, Nguyen Thi Bao My1
1 Hanoi Irradiation Center Km 12, Route 32, Minh Khai, Bac Tu liem, Ha Noi

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Abstract

The subject assigned to this paper presents research on development of multi-channel analyzer used for monitoring and warning environmental radiation equipment under the project KC.05.16/11-15 "Research on manufacturing equipment monitoring and warning radiation". In this thematic we have two subjects that need to be resolved such as: i) Designing spectroscopy amplifier block (AMP) duty pulse signals obtained about few hundred millivolts output from scintillation detector preamplifier, amplified as a few volts and the standard Gaussian pulses shaped to connect to the analog-to-digital converter. The spectroscopy amplifier block can change the gain by digital control to respond to the problem of automatic spectrum stability for multi-channel analyzer systems. ii) Designing analog-to-digital converter block (ADC) in accordance with the actual conditions, such as high stability, fast convertion time, high throughput, and it consums low energy. Selecting suitable microprocessor for fast connection ability, to operate reliably paired with the analog-to-digital converter into a multi-channel analyzer (MCA) serving analysis.

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References

1. IAEA-TECDOC-426; Trobleshooting in Nuclear Instruments, 1987.
2. Dušan Ponikvar; Digital electronics, Slovenia, 2001.
3. Heinz Rongen; Universal Analog/Digital and SCA/MCA, 2006.
4. Dušan Ponikvar; Multichannel Analysers, Slovenia, 2001.