A Large-Volume GAGG(Ce) Detector Module for In-Beam γ-Ray Spectroscopy
Abstract
We report on the development and characterization of large-volume GAGG(Ce) scintillation detector modules equipped with silicon photomultiplier (SiPM) readout. Each module houses four large-volume GAGG(Ce) crystals within a compact thin carbon-fiber enclosure, minimizing the passive material budget and enabling the construction of high-efficiency, large-solid-angle detector arrays for in-beam γ-ray spectroscopy. The performance of 10 GAGG modules (40 detectors), including the energy linearity, energy and timing resolution, and intrinsic full-energy peak efficiency, was evaluated using standard γ-ray sources and 14N(p,γ)15O reactions, covering a γ-ray energy range from about 0.3 MeV to 8 MeV. Non-linear energy response across the measured energy range was observed due to the non-linear response of the SiPM. The detector modules exhibit good energy resolution (FWHM below 5\% at 1.33 MeV), good timing resolution (FWHM ∼500 ps at ∼1 MeV), and intrinsic full-energy peak efficiencies in good agreement with Geant4 simulations, making the detector modules a promising solution for next-generation high efficiency in-beam γ-ray experiments at RI-beam facilities.
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BibTeX
@misc{li2026largevolume,
title = {{A Large-Volume GAGG(Ce) Detector Module for In-Beam $γ$-Ray Spectroscopy}},
author = {Jun-Qi Li and Ye-Lei Sun and Ming-Yuan Sun and Dan-Yang Li and Hao Wu and Bao-Hua Sun and Hong-Na Liu and Jun Su and Xin Chen and Xin-Zhi Jiang and Yi-Tong Huang and Yong-Liang Jiang and Tuo-Qi Liu and Yun-Long Lu and Lin Wang and Yu-Yang Yu},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.32621},
eprint = {2610.32621},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.32621},
}
RIS
TY - UNPB
TI - A Large-Volume GAGG(Ce) Detector Module for In-Beam γ-Ray Spectroscopy
AU - Jun-Qi Li
AU - Ye-Lei Sun
AU - Ming-Yuan Sun
AU - Dan-Yang Li
AU - Hao Wu
AU - Bao-Hua Sun
AU - Hong-Na Liu
AU - Jun Su
AU - Xin Chen
AU - Xin-Zhi Jiang
AU - Yi-Tong Huang
AU - Yong-Liang Jiang
AU - Tuo-Qi Liu
AU - Yun-Long Lu
AU - Lin Wang
AU - Yu-Yang Yu
PY - 2026
DA - 2026/10/23
PB - arXiv
DO - 10.48550/arxiv.2610.32621
UR - https://arxiv.org/abs/2610.32621
AB - We report on the development and characterization of large-volume GAGG(Ce) scintillation detector modules equipped with silicon photomultiplier (SiPM) readout. Each module houses four large-volume GAGG(Ce) crystals within a compact thin carbon-fiber enclosure, minimizing the passive material budget and enabling the construction of high-efficiency, large-solid-angle detector arrays for in-beam γ-ray spectroscopy. The performance of 10 GAGG modules (40 detectors), including the energy linearity, energy and timing resolution, and intrinsic full-energy peak efficiency, was evaluated using standard γ-ray sources and ^14N(p,γ)^15O reactions, covering a γ-ray energy range from about 0.3 MeV to 8 MeV. Non-linear energy response across the measured energy range was observed due to the non-linear response of the SiPM. The detector modules exhibit good energy resolution (FWHM below 5\% at 1.33 MeV), good timing resolution (FWHM ∼500 ps at ∼1 MeV), and intrinsic full-energy peak efficiencies in good agreement with Geant4 simulations, making the detector modules a promising solution for next-generation high efficiency in-beam γ-ray experiments at RI-beam facilities.
ER -