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July 19, 2026TomographyOpen Access

Space Radiation and Cancer Risk in Astronauts: Models, Evidence, Uncertainties, and Emerging Imaging Perspectives

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Authors

CZChiara ZanonMBMichele BasilicataACAgostino Chiaravalloti

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Overview

Narrative review summarizes cancer risk estimates from space radiation exposure, indicating significant uncertainties and emerging imaging prospects.

Key Points

  • The aim is to assess cancer risk from space radiation exposure in astronauts using various quantitative models.
  • Narrative review of quantitative models for estimating cancer risk in astronauts.
  • Evaluation of early and recent estimates on cancer mortality and incidence based on radiation exposure.
  • Discussion of NASA's current radiation standards and emerging imaging techniques.
  • 1-year excess cancer mortality estimates at solar minimum: 1.3% in women, 1.1% in men under 10 g/cm2 aluminum shielding.
  • Lifetime cancer incidence projections between 2.20% and 2.98% for 1 Sv effective dose, varying by sex and age.
  • NASA's career-effective dose limit is set at 600 mSv, highlighting significant uncertainties in current risk models.

Cite This Study

Zanon et al. (2026) studied this question.

synapsesocial.com/papers/6a5c6970118b92953e3edcd3https://doi.org/10.3390/tomography12070106
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