A Low Noise Readout System for Diamond Microstrip Detectors

Diamond is widely adopted in physics experiments owing to its good radiation hardness. In this paper, a low noise electronics system based on charge sensitive amplifier (CSA) is designed to read out diamond microstrip detectors. Up to 40 channels are implemented in the system, each containing a CSA,...

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Bibliographic Details
Published in:Journal of physics. Conference series 2022-11, Vol.2374 (1), p.12079
Main Authors: Luo, Laifu, Shen, Zhongtao, Yu, Hanlin, Zhang, Jianyong, Liu, Shubin
Format: Article
Language:English
Subjects:
Amplifier design
Analog to digital converters
Channels
Detectors
Diamonds
Low noise
Noise levels
Physics
Radiation sources
Read out systems
Strontium 90
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Summary:Diamond is widely adopted in physics experiments owing to its good radiation hardness. In this paper, a low noise electronics system based on charge sensitive amplifier (CSA) is designed to read out diamond microstrip detectors. Up to 40 channels are implemented in the system, each containing a CSA, a CR — RC 2 shaper, an analog to digital convertor (ADC) and a discriminator used for trigger generation. After calibration and joint test with prototype detector with a size of 4×4×0.5 mm 3 , a noise level of less than 845 electrons is realized in all 40 channels. Furthermore, the result with 90 Sr radiation source is consistent with the theory, and a position resolution of 13 um is obtained in laser test which indicates the readout system meets the demand of the future experiment.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2374/1/012079