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Novel fused-silica charge detection tile for particle detectors

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Abstract

Purpose

Develop a novel charge-detecting tile for future large-scale liquid xenon TPC for searching for neutrinoless double-beta decay.

Methods

Use advanced microelectronic technologies to fabricate small metal pads on a fused-silica wafer. The pads are chained into orthogonal strips, and the strips are isolated at the cross sections. The size of the pads defines the pitch between parallel strips and can be flexibly tuned according to any optimized dimension from future Monte Carlo studies. Such tile also has good potential to suppress the radioactivity and control electronics noise. Furthermore, its modular design allows to easily cover a large size.

Results

The design and performance have been demonstrated by a prototype tile, particularly by comprehensive tests in liquid xenon.

Conclusions

A new design of charge detection tile and the fabrication technologies have been developed, which would be useful for future noble liquid detectors.

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Acknowledgements

We thank Haibo Yang for producing Fig. 4 and Dr. Shuoxing Wu for valuable discussions. This work was partially supported by Program of International S&T Cooperation of MoST (2015DFG02000), CAS-IHEP Fund for PRC-US Collaboration in HEP, CAS Center for Excellence in Particle Physics (CCEPP).

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Authors and Affiliations

  1. University of Chinese Academy of Sciences, Beijing, 100049, China

    Wu-Rong Cen

  2. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China

    Wu-Rong Cen

  3. Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China

    Xiao-Meng Wu, Li-Qiang Cao & Qi-Dong Wang

  4. State Key Laboratory of Particle Detection and Electronics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China

    Liang-Jian Wen

Authors
  1. Wu-Rong Cen
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  2. Xiao-Meng Wu
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  3. Li-Qiang Cao
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  4. Qi-Dong Wang
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  5. Liang-Jian Wen
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Correspondence to Liang-Jian Wen.

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Cen, WR., Wu, XM., Cao, LQ. et al. Novel fused-silica charge detection tile for particle detectors. Radiat Detect Technol Methods 3, 12 (2019). https://doi.org/10.1007/s41605-018-0090-y

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  • DOI: https://doi.org/10.1007/s41605-018-0090-y

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