The on-orbit calibration of DArk Matter Particle Explorer

Ambrosi, G.; An, Q.; Asfandiyarov, R.; Azzarello, P.; Bernardini, P.; Cai, Mingsheng; Caragiulo, M.; Chang, Jin; Chen, D.Y.; Chen, H.F.; Chen, J.L.; Chen, W.; Cui, Ming-Yang; Cui, Tianshu; Dai, Haifeng; D’Amone, A.; Benedittis, A. De; Mitri, I. De; Ding, Mingjun; Santo, Margherita Di; Dong, J.; Dong, Ting; Dong, Yifan; Dong, Zhenqiang; Droz, David; Duan, Kai-Kai; Duan, Jinglai; D’Urso, D.; Fan, Ruirui; Fan, Yi‐Zhong; Fang, F.; Feng, C. Q.; Liu, Feng; Fusco, P.; Gallo, V.; Gan, F.J.; Gao, Min; Gao, Shanshan; Gargano, F.; Garrappa, S.; Gong, Ke; Gong, Yizhong; Guo, Junming; Hu, Y. M.; Huang, G. S.; Huang, Yong-Yi; Ionica, M.; Jiang, Di; Jiang, Wei; Jin, Xi; Kong, Jie; Lei, Shijun; Li, S.; Li, X.; Li, W.L.; Li, Y.; Liang, Yan-Ni; Liang, Yao-Ming; Liao, Neng-Hui; Liu, C.M.; Liu, H.; Liu, J.; Liu, S.B.; Liu, W.Q.; Liu, Y.; Loparco, F.; Ma, Miao; Ma, Peng-Xiong; Ma, Siyuan; Ma, Tao; Ma, XiaoYong; Ma, Xiao-Yong; Marsella, G.; Mazziotta, M. N.; Mo, Dan; Niu, X. Y.; Xu, Pan; Peng, X. Y.; Peng, W. X.; Qiao, Rui; Rao, J. N.; Salinas, M. M.; Shang, Guan Zhi; Shen, W. H.; Shen, Zhao-Qiang; Shen, Zhongtao; Song, J. X.; Su, Hong; Su, Meng; Sun, Zhigang; Surdo, A.; Teng, Xueyi; Tian, Xinpeng; Tykhonov, A.; Vitillo, S.; Wang, Chuan; Ht, Wang; 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.; Wen, Sicheng; Wei, Da-Ming; Wei, J. J.; Wei, Yifeng; Wu, Di; Wu, Jian; Wu, Libo; Wu, Sha Sha; Wu, X.; Xi, Kai; Xia, Zi-Qing; Xin, Y.; Xu, Haitao; Xu, Z.; Xu, Zhi-Hui; Xu, Zizong; Xue, Guofeng; Yang, Haibo; Yang, Peng; Yang, Yaqing; Yang, Z.; Yao, Hui; Yu, Y. H.; Yuan, Qiang; Yue, Chuan; Zang, J.; Zhang, D.L.; Zhang, F.; Zhang, J.B.; Zhang, J.Y.; Zhang, J.Z.; Zhang, Lu; 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.; Zhao, H.; Zhao, Xinfeng; Zhou, C.; Zhou, Yu‐Feng; Zhu, X.; Zhu, Yan; Zimmer, S.

doi:10.1016/j.astropartphys.2018.10.006

Cited by 59 publications

(38 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The DAMPE detector was launched into a 500-km Sun-synchronous orbit on 17 December 2015. The on-orbit calibration results demonstrate that DAMPE operates stably in space ( 27 ).…”

Section: Resultsmentioning

confidence: 95%

See 1 more Smart Citation

Measurement of the cosmic ray proton spectrum from 40 GeV to 100 TeV with the DAMPE satellite

An¹,

Asfandiyarov²,

Azzarello³

et al. 2019

Sci. Adv.

Self Cite

186

123

View full text Add to dashboard Cite

The precise measurement of the spectrum of protons, the most abundant component of the cosmic radiation, is necessary to understand the source and acceleration of cosmic rays in the Milky Way. This work reports the measurement of the cosmic ray proton fluxes with kinetic energies from 40 GeV to 100 TeV, with 2 1 / 2 years of data recorded by the DArk Matter Particle Explorer (DAMPE). This is the first time that an experiment directly measures the cosmic ray protons up to~100 TeV with high statistics. The measured spectrum confirms the spectral hardening at~300 GeV found by previous experiments and reveals a softening at~13.6 TeV, with the spectral index changing from~2.60 to~2.85. Our result suggests the existence of a new spectral feature of cosmic rays at energies lower than the so-called knee and sheds new light on the origin of Galactic cosmic rays.

show abstract

“…The DAMPE detector was launched into a 500-km Sun-synchronous orbit on 17 December 2015. The on-orbit calibration results demonstrate that DAMPE operates stably in space ( 27 ).…”

Section: Resultsmentioning

confidence: 95%

“…The comparison between the test beam data and MC simulations shows a good agreement with each other ( 20 ). The on-orbit calibration of the energy measurement was performed by means of the MIP signals in each BGO crystal ( 27 ).…”

Section: Methodsmentioning

confidence: 99%

Measurement of the cosmic ray proton spectrum from 40 GeV to 100 TeV with the DAMPE satellite

An¹,

Asfandiyarov²,

Azzarello³

et al. 2019

Sci. Adv.

Self Cite

186

123

View full text Add to dashboard Cite

show abstract

“…The DArk Matter Particle Explorer (DAMPE) is a cosmic ray detector and gamma ray telescope in operation since December 2015 on a sun-synchronous orbit around the Earth [1] [2]. It is constituted of four subdetectors ( fig.…”

Section: The Dark Matter Particle Explorer -Dampementioning

confidence: 99%

Neural Networks for Electron Identification with DAMPE

Droz¹,

Tykhonov²,

Wu³

2019

Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019)

View full text Add to dashboard Cite

The Dark Matter Particle Explorer (DAMPE) is a space-borne particle detector and cosmic ray observatory in operation since 2015, equipped with alongside other instruments a deep calorimeter able to detect electrons up to an energy of 10 TeV and cosmic hadrons up to 100 TeV. The large proton and ion background in orbit requires a powerful electron identification method. In recent years, the field of machine learning has provided such tools. We explore here a neural network based approach to an on-orbit particle identification problem. We present the issues that arise from the constraints of particle physics, notably the difference between training set based on simulated data, and the application set based on real unlabeled data, leading to a trade-off between performances and general usability. We finally compare the neural network discrimination power with the more traditional cut-based analysis.

show abstract

“…It is made of one layer of 4 boron-doped plastic scintillators. The detector is very stable since January the 1st 2016 [5]. It is collecting data at a rate of 5 Mevents/day for a total 6.5 billion events in 3.5 years corresponding to 7 full scans of the sky.…”

Section: The Detectormentioning

confidence: 99%