Onboard Calibration Circuit for the Front-end Electronics of DAMPE BGO Calorimeter

De-Liang Zhang; Chang-Qing Feng; Jun-Bin Zhang; Qi Wang; Si-Yuan Ma; Shan-Shan Gao; Zhong-Tao Shen; Di Jiang; Jian-Hua Guo; Shu-Bin Liu; Qi An

Onboard Calibration Circuit for the Front-end Electronics of DAMPE BGO Calorimeter

Instrumentation and Detectors 2015-07-22 v1

Authors: De-Liang Zhang , Chang-Qing Feng , Jun-Bin Zhang , Qi Wang , Si-Yuan Ma , Shan-Shan Gao , Zhong-Tao Shen , Di Jiang , Jian-Hua Guo , Shu-Bin Liu , Qi An

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Abstract

An onboard calibration circuit has been designed for the front-end electronics (FEE) of DAMPE BGO Calorimeter. It is mainly composed of a 12 bit DAC, an operation amplifier and an analog switch. Test results showed that a dynamic range of 0 ~ 30 pC with a precision of 5 fC was achieved, which meets the requirements of the front-end electronics. Furthermore, it is used to test the trigger function of the FEEs. The calibration circuit has been implemented and verified by all the environmental tests for both Qualification Model and Flight Model of DAMPE. The DAMPE satellite will be launched at the end of 2015 and the calibration circuit will perform onboard calibration in space.

Keywords

onboard calibration circuit front-end electronics dampe bgo calorimeter charge measurement trigger function qualification model flight model

Cite

@article{arxiv.1507.05862,
  title  = {Onboard Calibration Circuit for the Front-end Electronics of DAMPE BGO Calorimeter},
  author = {De-Liang Zhang and Chang-Qing Feng and Jun-Bin Zhang and Qi Wang and Si-Yuan Ma and Shan-Shan Gao and Zhong-Tao Shen and Di Jiang and Jian-Hua Guo and Shu-Bin Liu and Qi An},
  journal= {arXiv preprint arXiv:1507.05862},
  year   = {2015}
}

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7 pages, 15 figures, 1 table

Onboard Calibration Circuit for the Front-end Electronics of DAMPE BGO Calorimeter

Abstract

Keywords

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