Risk Risk of Acute (In-flight) and Late Central Nervous System Effects from Radiation Exposure
Short Title: CNS Last Published:  07/31/18 09:30:03 AM (Central)
Element: Human Factors and Behavioral Performance (HFBP)
Evidence:  Report
Risk Master Logic Diagram:  Not Available
Point of Contact:  Janice Huff
Risk Ratings and Dispositions per Design Reference Mission (DRM) Category
DRM CategoriesMission
OperationsLong-Term Health
LxCRisk Disposition *LxCRisk Disposition *
Low Earth Orbit6 months1x1Accepted1x3Accepted/Low Probability
1 year1x1Accepted1x3Accepted/Low Probability
Deep Space Sortie1 month1x1Accepted1x3Accepted/Low Probability
Lunar Visit/
1 year1x2Accepted/Requires Data1x3Accepted/Low Probability
Deep Space
1 year2x3Requires Mitigation/Data2x3Requires Mitigation/Data
Planetary3 years3x3Requires Mitigation/Data3x3Requires Mitigation/Data
Note: LxC is the likelihood and consequence rating. This risk is mapped to the official (consolidated) HSRB risk "Risk of Adverse Health Outcomes and Performance Decrements resulting from Space Radiation Exposure (Acute, CNS, Degen, Cancer)". The HSRB evaluated the LxC and risk dispositions of this sub-risk for each DRM as part of their review of the consolidated risk.
Risk Statement
Given that the crew is exposed to radiation from the space environment, there is the possibility that they will develop CNS damage leading to acute (in-flight) and/or late changes in cognition, motor function, behavior and mood, or neurological disorders.
Gaps (8)