Signal Calibration and Energy Resolution Optimization of a Double-Sided Silicon Strip Detector for Lunar-Based Particle Detection
Year: 2025
Type: article
Abstract: This paper presents a signal calibration and energy resolution analysis of a Double-Sided Silicon Strip Detector (DSSD) developed for charged particle detection in a lunar-based space environment. The detector is part of the Moon-Aiming Thai-Chinese Hodoscope (MATCH), a proposed scientific payload for the Chang'E-7 lunar orbiter, aimed at monitoring space weather and lunar-surface particle interactions. To evaluate the DSSD's performance under vacuum conditions, alpha sources (Am-241 and Pu-239) were used to generate energy spectra, which were processed through baseline correction and histogram generation. Four peak models Gaussian, Gaussian + Exponential Tail, Exponentially Modified Gaussian (EMG), and Hyper-EMG were compared using nonlinear least squares. Results show that the Hyper-EMG model yields superior fits, especially for Am-241, achieving an average reduced chi-squared of 1.64$\pm$4.44 and energy resolution of 3.09%$\pm$0.45%, with 22 out of 32 AIC wins. In contrast, Gaussian fits showed higher fitting errors (e.g.,$\chi ^{2}$/DoF up to 10.5) and the poorest resolution. Akaike Information Criterion (AIC) selection further confirms Hyper-EMG's robustness, while Gaussian fits were consistently inadequate. These findings support the use of tail-aware models like Hyper-EMG for accurate energy reconstruction in spaceborne silicon detectors.
Source: IEEE Sensors Letters
Authors: Thanayuth Panyalert, Shariff Manuthasna, Peerapong Torteeka, Xu He, Ning Zhang, Jianing Zheng, Bin Zhang, Dong Yang, Haibo Yang, Jingtian Xian, Yiwei Bao, Sichen Lu, Kunlanan Puprasit, Kullapha Chaiwongkhot, Tanawish Marsri, Haojiang Zhao, Yaowarat Pittayang, Paparin Jamlongkul, Popefa Charoenvicha, Pakorn Khonsri, Kanatip Anuchit, Koth Amratisha, Sunruthai Burom, Jidapa Lakronwat, Warit Mitthumsiri, Petchara Pattarakijwanich, Patcharin Kamsing, David Ruffolo, Shenyi Zhang, Wiphu Rujopakarn
Institutions: National Astronomical Research Institute of Thailand, Chinese Academy of Sciences, Changchun Institute of Optics, Fine Mechanics and Physics, Jilin University, Institute of Modern Physics, Mahidol University, King Mongkut's Institute of Technology Ladkrabang, National Space Science Center
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,645
OpenAlex ID: W4411358678