Description: The ARMAS Dual Monitor addresses the need to identify possible radiation sources that may lead to higher rates of melanoma and basal cell carcinoma in air crew members. The experiment builds on findings from six predecessor ARMAS experiments since 2011. Designed to fly on a balloon for 14 to 30 days, the system consists of four radiation detectors for total ionizing dose, gamma rays, linear energy transfer spectroscopy, and tissue equivalent proportional counter quality factor measurements. In addition, researchers hope to test two instruments on an aircraft for validation: total ionizing dose and thermal neutron monitors. This work is a continuation of previous flight testing under T0176 and T0221. Problem Statement This technology is designed to identify sources of radiation that contribute to air crew members’ higher melanoma and basal cell carcinoma rates. Researchers intend to validate this atmospheric radiation monitoring operational system for air traffic and suborbital flight safety. Technology Maturation A successful demonstration of this technology will advance it from TRL 7 to 8. This will be accomplished by the identification of a radiation source that leads to crew shallow-tissue cancers.

Benefits: Featuring instruments precalibrated at the Los Alamos National Laboratory, the Automated Radiation Measurements for Aerospace Safety (ARMAS) dual monitor is designed to help identify potentially dangerous radiation sources. It is comprehensive in that it aims to gather data over a long duration. This would benefit future NASA missions, other government agencies, and the nation. Future Customers • NASA suborbital, International Space Station, and Gateway missions, with real-time data assimilated in the NAIRAS global physics model (Nowcast of Atmospheric Ionizing Radiation for Aviation Safety) • Department of Commerce, Federal Aviation Administration, and commercial air and space radiation management