Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published 2005 | Published
Book Section - Chapter Open

The Cosmic Ray Radiation Dose in Interplanetary Space - Present Day and Worst-Case Evaluations


A physics-based cosmic-ray transport model has been fit to solar-minimum and solar-maximum cosmic ray spectra and used for preliminary evaluations of the radiation dose and dose-equivalent of galactic cosmic rays (GCRs). We find a solar-minimum radiation dose-equivalent somewhat lower than previous estimates, with a smaller difference between solar minimum and solar maximum. Measurements of Be-10 in polar ice cores and other data show that the cosmic-ray intensity was significantly higher 50 to 100 years ago. The estimated radiation levels during these earlier periods were up to ~ 1.7 times greater than during recent solar minima.

Additional Information

© 2005 Tata Institute of Fundamental Research. This work was supported by NASA under NAG5-12929.

Attached Files

Published - Stone_2005p433.pdf


Files (394.1 kB)
Name Size Download all
394.1 kB Preview Download

Additional details

August 19, 2023
October 17, 2023