# The on-orbit calibration of DArk Matter Particle Explorer **Authors:** G. Ambrosi, Q. An, R. Asfandiyarov, P. Azzarello, P. Bernardini, M. S., Cai, M. Caragiulo, J. Chang, D. Y. Chen, H. F. Chen, J. L. Chen, W. Chen, M., Y. Cui, T. S. Cui, H. T. Dai, A. D'Amone, A. De Benedittis, I. De Mitri, M., Ding, M. Di Santo, J. N. Dong, T. K. Dong, Y. F. Dong, Z. X. Dong, D. Droz,, K. K. Duan, J. L. Duan, D. D'Urso, R. R. Fan, Y. Z. Fan, F. Fang, C. Q. Feng,, L. Feng, P. Fusco, V. Gallo, F. J. Gan, M. Gao, S. S. Gao, F. Gargano, S., Garrappa, K. Gong, Y. Z. Gong, J. H. Guo, Y. M. Hu, G. S. Huang, Y. Y. Huang,, M. Ionica, D. Jiang, W. Jiang, X. Jin, J. Kong, S. J. Lei, S. Li, X. Li, W., L. Li, Y. Li, Y. F. Liang, Y. M. Liang, N. H. Liao, C. M. Liu, H. Liu, J., Liu, S. B. Liu, W. Q. Liu, Y. Liu, F. Loparco, M. Ma, P. X. Ma, S. Y. Ma, T., Ma, X. Q. Ma, X. Y. Ma, G. Marsella, M.N. Mazziotta, D. Mo, X. Y. Niu, X., Pan, X. Y. Peng, W. X. Peng, R. Qiao, J. N. Rao, M. M. Salinas, G. Z. Shang,, W. H. Shen, Z. Q. Shen, Z. T. Shen, J. X. Song, H. Su, M. Su, Z. Y. Sun, A., Surdo, X. J. Teng, X. B. Tian, A. Tykhonov, S. Vitillo, C. Wang, H. Wang, H., Y. Wang, J. Z. Wang, L. G. Wang, Q. Wang, S. Wang, X. H. Wang, X. L. Wang, Y., F. Wang, Y. P. Wang, Y. Z. Wang, Z. M. Wang, S. C. Wen, D. M. Wei, J. J. Wei,, Y. F. Wei, D. Wu, J. Wu, L. B. Wu, S. S. Wu, X. Wu, K. Xi, Z. Q. Xia, Y. L., Xin, H. T. Xu, Z. H. Xu, Z. L. Xu, Z. Z. Xu, G. F. Xue, H. B. Yang, P. Yang,, Y. Q. Yang, Z. L. Yang, H. J. Yao, Y. H. Yu, Q. Yuan, C. Yue, J. J. Zang, D., L. Zhang, F. Zhang, J. B. Zhang, J. Y. Zhang, J. Z. Zhang, L. Zhang, P. F., Zhang, S. X. Zhang, W. Z. Zhang, Y. Zhang, Y. J. Zhang, Y. Q. Zhang, Y. L., Zhang, Y. P. Zhang, Z. Zhang, Z. Y. Zhang, H. Zhao, H. Y. Zhao, X. F. Zhao,, C. Y. Zhou, Y. Zhou, X. Zhu, Y. Zhu, S. Zimmer arXiv: 1907.02173 · 2019-07-05 ## TL;DR This paper details the calibration procedures and results for DAMPE's detectors during its on-orbit operation, demonstrating detector stability over nearly two years using cosmic rays and gamma-ray sources. ## Contribution It presents the first comprehensive on-orbit calibration methodology and results for DAMPE's multiple detectors, ensuring accurate cosmic ray and gamma-ray measurements. ## Key findings - Detectors remained stable over two years of operation. - Calibration using cosmic rays and gamma-ray sources was successful. - Detector alignments and boundary determinations were achieved accurately. ## Abstract The DArk Matter Particle Explorer (DAMPE), a satellite-based cosmic ray and gamma-ray detector, was launched on December 17, 2015, and began its on-orbit operation on December 24, 2015. In this work we document the on-orbit calibration procedures used by DAMPE and report the calibration results of the Plastic Scintillator strip Detector (PSD), the Silicon-Tungsten tracKer-converter (STK), the BGO imaging calorimeter (BGO), and the Neutron Detector (NUD). The results are obtained using Galactic cosmic rays, bright known GeV gamma-ray sources, and charge injection into the front-end electronics of each sub-detector. The determination of the boundary of the South Atlantic Anomaly (SAA), the measurement of the live time, and the alignments of the detectors are also introduced. The calibration results demonstrate the stability of the detectors in almost two years of the on-orbit operation. ## Full text _Full body text omitted from this summary view._ Fetch the complete paper as Markdown: https://tomesphere.com/paper/1907.02173/full.md ## Figures 47 figures with captions in the complete paper: https://tomesphere.com/paper/1907.02173/full.md ## References 57 references — full list in the complete paper: https://tomesphere.com/paper/1907.02173/full.md --- Source: https://tomesphere.com/paper/1907.02173