Galactic cosmic ray simulation at the NASA space radiation laboratory – Progress, challenges and recommendations on mixed-field effects

Huff, Janice L.; Poignant, Floriane; Rahmanian, Shirin; Khan, Nafisah; Blakely, Eleanor A.; Britten, Richard A.; Chang, Polly; Fornace, Albert J.; Hada, Megumi; Kronenberg, Amy; Norman, Ryan B.; Patel, Zarana S.; Shay, Jerry W.; Weil, Michael M.; Simonsen, Lisa C.; Slaba, Tony C.

doi:10.1016/j.lssr.2022.09.001

Galactic cosmic ray simulation at the NASA space radiation laboratory – Progress, challenges and recommendations on mixed-field effects

Journal Article · Sun Sep 10 00:00:00 EDT 2023 · Life Sciences in Space Research

DOI:https://doi.org/10.1016/j.lssr.2022.09.001· OSTI ID:2242443

^[1]; Poignant, Floriane ^[2]; Rahmanian, Shirin ^[2]; Khan, Nafisah ^[2]; Blakely, Eleanor A. ^[3]; Britten, Richard A. ^[4]; ^[5]; Fornace, Albert J. ^[6]; Hada, Megumi ^[7]; Kronenberg, Amy ^[3]; Norman, Ryan B. ^[1]; ^[8]; Shay, Jerry W. ^[9]; ^[10]; ^[11]; ^[1]

NASA Langley Research Center, Hampton, VA (United States)
National Institute of Aerospace, Hampton, VA (United States)
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Eastern Virginia Medical School (EVMS), Norfolk, VA (United States)
SRI International, Menlo Park, CA (United States)
Georgetown University, Washington, DC (United States)
Prairie View A & M University, TX (United States)
KBR Inc., Houston, TX (United States); NASA Johnson Space Center, Houston, TX (United States)
University of Texas Southwestern Medical Center, Dallas, TX (United States)
Colorado State University, Fort Collins, CO (United States)
NASA Headquarters, Washington, DC (United States)

For missions beyond low Earth orbit to the moon or Mars, space explorers will encounter a complex radiation field composed of various ion species with a broad range of energies. Such missions pose significant radiation protection challenges that need to be solved in order to minimize exposures and associated health risks. An innovative galactic cosmic ray simulator (GCRsim) was recently developed at the NASA Space Radiation Laboratory (NSRL) at Brookhaven National Laboratory (BNL). The GCRsim technology is intended to represent major components of the space radiation environment in a ground analog laboratory setting where it can be used to improve understanding of biological risks and serve as a testbed for countermeasure development and validation. The current GCRsim consists of 33 energetic ion beams that collectively simulate the primary and secondary GCR field encountered by humans in space over the broad range of particle types, energies, and linear energy transfer (LET) of interest to health effects. A virtual workshop was held in December 2020 to assess the status of the NASA baseline GCRsim. Workshop attendees examined various aspects of simulator design, with a particular emphasis on beam selection strategies. Experimental results, modeling approaches, areas of consensus, and questions of concern were also discussed in detail. This report includes a summary of the GCRsim workshop and a description of the current status of the GCRsim. This information is important for future advancements and applications in space radiobiology.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: Harold C. Simmons Comprehensive Cancer Center; National Aeronautics and Space Administration (NASA); USDOE Office of Science (SC)

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 2242443

Journal Information:: Life Sciences in Space Research, Journal Name: Life Sciences in Space Research Vol. 36; ISSN 2214-5524

Publisher:: Elsevier; The Committee on Space Research (COSPAR)Copyright Statement

Country of Publication:: United States

Language:: English

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