Published August 2017 | Version v1
Journal article Metadata-only

Construction of measurement system for multi-channel dose detector based on multi-channel charge sensitive preamplifier

Creators

  • 1. Institute of Nuclear and New, Energy Technology Tsinghua University, Beijing Key Laboratory of Nuclear Detection and Measurement, Beijing (China)

Description

In this paper, the characteristics and measurement requirements of the output signal of a multi-channel air ionization chamber dose detector are focused. Using a multi-channel charge sensitive integrated preamplifier (ASIC), the synchronous signal amplification, processing and acquisition of micro current signal from a 1024-channel air ionization chamber dose detector are realized. The experiment was carried out under the 6 MV (30 MU/min) medical accelerator. The charge was about 0.15 pC in 10 ms integral time and the sensitivity was about 3 nC/G. The results show that the measurement system with this preamplifier fits for the requirements, and can be used in the multi-channels dose measurement system. (author)

Additional details

Publishing Information

Journal Title
Nuclear Electronics and Detection Technology
Journal Volume
37
Journal Issue
8
Journal Page Range
p. 802-805
ISSN
0258-0934

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
53032805
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
ACCELERATORS; AIR; CURRENTS; ELECTRIC CURRENTS; IONIZATION CHAMBERS; PREAMPLIFIERS; PROCESSING; RADIATION DOSES; SENSITIVITY; SIGNALS
Descriptors DEC
AMPLIFIERS; CURRENTS; DOSES; ELECTRONIC EQUIPMENT; EQUIPMENT; FLUIDS; GASES; MEASURING INSTRUMENTS; RADIATION DETECTORS

Optional Information

Notes
5 figs., 4 refs.