Track reconstruction for ISS-cream resulting in improved energy and charge resolutions

J. P. Lundquist, Y. Amare, D. Angelaszek, N. Anthony, G. H. Choi, M. Chung, M. Copley, L. Derome, L. Eraud, C. Falana, A. Gerrety, L. Hagenau, J. H. Han, H. G. Huh, Y. S. Hwang, H. J. Hyun, H. B. Jeon, J. A. Jeon, S. Jeong, S. C. KangH. J. Kim, K. C. Kim, M. H. Kim, H. Y. Lee, J. Lee, M. H. Lee, C. Lamb, J. Liang, L. Lu, L. Lutz, B. Mark, A. Mechaca-Rocha, T. Mernik, M. Nester, O. Ofoha, H. Park, I. H. Park, J. M. Park, N. Picot-Clemente, S. Rostsky, E. S. Seo, J. R. Smith, R. Takeishi, T. Tatoli, P. Walpole, R. P. Weinmann, J. Wu, Z. Yin, Y. S. Yoon, H. G. Zhang

Research output: Contribution to journalConference articlepeer-review

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Abstract

Cosmic Ray Energetics And Mass for the International Space Station (ISS-CREAM) has taken 1.5 years of direct measurements of high-energy cosmic ray (HECR) particles for energies from 1012 to 1015 eV. HECR particle identification is significantly improved by tracking particle-detector interactions from the calorimeter (CAL) back to the Silicon Charge Detector (SCD) for charge determination. A track finding algorithm resistant to such issues as particle multiplicity, backscatter, and electronic noise will be outlined. Also, shown is the energy resolution improvement, and the resulting all particle spectrum, provided by ensuring good particle tracks. This allows ISS-CREAM to investigate how the energy distributions evolve, for protons all the way to iron nuclei, and will provide important information for models of galactic sources and HECR propagation.

Original languageEnglish
JournalProceedings of Science
Volume358
StatePublished - 2019
Event36th International Cosmic Ray Conference, ICRC 2019 - Madison, United States
Duration: 24 Jul 20191 Aug 2019

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