Measurements of cosmic-ray proton and helium spectra from the ISS-CREAM experiment
The Cosmic Ray Energetics And Mass for the International Space Station (ISS-CREAM) payload was developed to measure the elemental spectra for a charge range of Z = 1 to 26, with an energy range from ∼10^12 to ∼10^15eV. Launched in August 2017, the ISS-CREAM payload successfully collected data for 539 days until February 2019. The ISS-CREAM instrument consists of several particle detectors: a Silicon Charge Detector (SCD) for charge measurements and a calorimeter (CAL) with carbon targets for energy measurements. It also includes a top counting detector (TCD), a bottom counting detector (BCD), and a boronated scintillator detector (BSD) to help separate electrons from protons. For this analysis, SCD and CAL were used for the charge and energy measurement, respectively, while TCD/BCD and CAL were used for the trigger. The ISS-CREAM proton spectrum has been reported in the energy range of 1.6 − 655 TeV. This proton spectrum deviates from a single power-law, softening at ∼ 9 TeV. This study presents the preliminary helium spectrum from the ISS-CREAM experiment in the energy range of 6 TeV to ∼ 1.1 PeV.
Authors
- L. Lutz (ORCID: https://orcid.org/0000-0002-2936-7522)
- Y. C. Chen
- H. J. Kim (ORCID: https://orcid.org/0000-0001-9787-4684)
- L. Eraud
- Siniša Maričić (ORCID: https://orcid.org/0000-0002-7239-8009)
- Gwangho Choi (ORCID: https://orcid.org/0000-0001-8374-466X)
- O. Ofoha
- R. Scrandis
- Y. S. Yoon
- E. S. Seo (ORCID: https://orcid.org/0000-0001-8682-805X)
- D. Angelaszek
- J. Lee
- M. J. Lee (ORCID: https://orcid.org/0000-0003-4528-4601)
- Il Han Park (ORCID: https://orcid.org/0000-0002-1240-7735)
- H. Park
- J. M. Park
- M. H. Lee
- H. Wu (ORCID: https://orcid.org/0000-0002-9337-3476)
- L. Derome (ORCID: https://orcid.org/0000-0002-9814-6299)
- M.H. Kim (ORCID: https://orcid.org/0000-0001-8283-8875)
- Hongfang Zhang (ORCID: https://orcid.org/0009-0006-8924-4192)
- Jon Paul Lundquist (ORCID: https://orcid.org/0000-0002-4245-5092)
- Y. Amare
- Arvind Bagga (ORCID: https://orcid.org/0000-0002-7832-684X)
- A. Menchaca-Rocha (ORCID: https://orcid.org/0000-0002-4856-8055)
- K. C. Kim
- R. Weinmann
- Alifa Bintha Haque (ORCID: https://orcid.org/0000-0001-8250-0030)
- Zachary Michael Dorris
- Jingzhu Wu (ORCID: https://orcid.org/0000-0002-8386-1038)
- S. Aggarwal (ORCID: https://orcid.org/0000-0003-1997-6639)
- J. H. Han (ORCID: https://orcid.org/0000-0001-9814-4579)
- S. C. Kang (ORCID: https://orcid.org/0009-0009-0405-4640)
- M. Copley
- S. Pandey
- D. P. Bowman
- S. Jeong
- H.G. Huh
- N. Picot-Clémente (ORCID: https://orcid.org/0009-0006-3034-7832)
Publication Details
- Published
- 2025-09-23
- DOI
- https://doi.org/10.22323/1.501.0028
- Primary Topic
- Solar and Space Plasma Dynamics
- Type
- article
- Field-Weighted Citation Impact
- 0.00