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A low-cost slow control system for the PandaX-4T experiment

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Abstract

Background

The PandaX-4T experiment is a next-generation dark matter search program located in the China Jinping Underground Laboratory. To ensure the stability of the complex instrument during the planned operation, the status of the facility should be monitored continuously.

Purpose

The paper reports the design of the slow control system for the experiment. The system is used to monitor the facility status and generate an alarm signal while the detector is in abnormal status.

Methods

Low-cost hardware is employed for the distributed data collection. Python-based data collection program was developed. We also used the open source software for data storage, visualization and anomaly detection, so that the development of the system is simplified.

Conclusion

We finally achieved a low-cost and robust slow control system for the prototype detector in short time. It is running well currently. The system will be integrated with the PandaX-4T facility in late 2019.

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Acknowledgements

This project has been supported by the grants from National Science Foundation of China (Nos. 11435008, 11455001, 11505112 and 11525522), a grant from the Ministry of Science and Technology of China (No. 2016YFA0400301). We thank the support of a key laboratory grant from the Office of Science and Technology, Shanghai Municipal Government (No. 11DZ2260700) and the support from the Key Laboratory for Particle Physics, Astrophysics and Cosmology, Ministry of Education. This work is supported in part by the Chinese Academy of Sciences Center for Excellence in Particle Physics (CCEPP).

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Authors and Affiliations

  1. Liaoning Normal University, Dalian, 116029, Liaoning, China

    Peng Ji & Chongjie Wang

  2. INPAC, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, China

    Xun Chen, Li Zhao & Ning Zhou

  3. Department of Physics, University of Maryland, College Park, MD, 20742, USA

    Andi Tan

  4. School of Physics, Nankai University, Tianjin, 300071, China

    Chunxu Yu

Authors
  1. Peng Ji
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  2. Xun Chen
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  3. Andi Tan
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  4. Chongjie Wang
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  5. Chunxu Yu
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  6. Li Zhao
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  7. Ning Zhou
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Corresponding authors

Correspondence to Xun Chen or Chongjie Wang.

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On behalf of all authors, the corresponding author states that there is no conflict of interest.

A Example of the configuration file

A Example of the configuration file

An example of the configuration file is given below. The database is described by the entry of db_url. An analog input module of DAM-8082 is attached to the Raspberry Pi with two sensors, an AS109 temperature and humidity reader and a ZDF5227 vacuum meter, connected.

figure a

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Ji, P., Chen, X., Tan, A. et al. A low-cost slow control system for the PandaX-4T experiment. Radiat Detect Technol Methods 3, 53 (2019). https://doi.org/10.1007/s41605-019-0130-2

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  • DOI: https://doi.org/10.1007/s41605-019-0130-2

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