Development of A Novel Compton Camera for MeV Gamma-Ray Measurement in Space

Abstract

The astrophysical gamma rays in the MeV energy region have not yet been well-explored due to the limitation of detection technology in the past decades, and the famous gamma-ray "MeV gap" exists. Opening the window of MeV gamma-ray is not only critical for the gamma astronomy but also essential for rich frontier researches in astro-particle physics, such as detecting light dark matter, probing the primordial black hole and better understanding of nucleosynthesis. As a pilot experiment of the project for dark matter detection in space at Shanghai Jiao Tong University, a three-layer Compton camera with the energy resolution better than 4% and position resolution of ~2 mm is developed utilizing the novel scintillators. Here we show the design, detailed calibration and validation results of the novel Compton camera, and demonstrate its good ability of MeV gamma-ray source imaging for the upcoming in-orbit mission.

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BibTeX RIS

BibTeX

@misc{sun2026development,
  title = {{Development of A Novel Compton Camera for MeV Gamma-Ray Measurement in Space}},
  author = {Pingwei Sun and Wenxiang Fang and Guorong He and Zhen Wu and Jinghe Yang and Jiancheng Zeng and Yiyu Pan and Jiacheng Ding and Enzhao Qi and Jiahao Su and Haoran Yang and Bowen Zhu and Mengjiao Xiao},
  howpublished = {arXiv},
  year = {2026},
  month = aug,
  doi = {10.48550/arxiv.2608.21216},
  eprint = {2608.21216},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2608.21216},
}

RIS

TY  - UNPB
TI  - Development of A Novel Compton Camera for MeV Gamma-Ray Measurement in Space
AU  - Pingwei Sun
AU  - Wenxiang Fang
AU  - Guorong He
AU  - Zhen Wu
AU  - Jinghe Yang
AU  - Jiancheng Zeng
AU  - Yiyu Pan
AU  - Jiacheng Ding
AU  - Enzhao Qi
AU  - Jiahao Su
AU  - Haoran Yang
AU  - Bowen Zhu
AU  - Mengjiao Xiao
PY  - 2026
DA  - 2026/08/28
PB  - arXiv
DO  - 10.48550/arxiv.2608.21216
UR  - https://arxiv.org/abs/2608.21216
AB  - The astrophysical gamma rays in the MeV energy region have not yet been well-explored due to the limitation of detection technology in the past decades, and the famous gamma-ray "MeV gap" exists. Opening the window of MeV gamma-ray is not only critical for the gamma astronomy but also essential for rich frontier researches in astro-particle physics, such as detecting light dark matter, probing the primordial black hole and better understanding of nucleosynthesis. As a pilot experiment of the project for dark matter detection in space at Shanghai Jiao Tong University, a three-layer Compton camera with the energy resolution better than 4% and position resolution of ~2 mm is developed utilizing the novel scintillators. Here we show the design, detailed calibration and validation results of the novel Compton camera, and demonstrate its good ability of MeV gamma-ray source imaging for the upcoming in-orbit mission.
ER  -

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