Title :
Solar cycle variation of outer belt electron dose at low-Earth orbit
Author :
Brautigam, D.H. ; Dichter, B.K. ; Ray, Kevin P. ; Turnbull, W. Rhett ; Madden, D. ; Ling, A. ; Holeman, E. ; Redus, Robert H. ; Woolf, S.
Author_Institution :
Air Force Res. Lab., Hanscom AFB, MA, USA
fDate :
12/1/2001 12:00:00 AM
Abstract :
The solar cycle dependence of dose rates in the low-altitude "horns" of the outer zone electron belt is examined using data from TSX5/CEASE (solar maximum epoch) and APEX/PASP+ (solar minimum epoch). It is found, after normalizing the dose rates to account for the different shielding geometries, that the ratio of PASP to CEASE dose rates is ~4 for L>4. This is contrary to the equal dose rates predicted by the NASA AE8MIN and AE8MAX models
Keywords :
biological effects of radiation; health hazards; radiation belts; solar activity; APEX/PASP; CEASE; PASP; TSX5/CEASE; low-Earth orbit; low-altitude horns; outer belt electron dose; outer zone electron belt; solar cycle variation; Belts; Charge carrier processes; Electrons; Geometry; Helium; Low earth orbit satellites; NASA; Predictive models; Space vehicles; Testing;
Journal_Title :
Nuclear Science, IEEE Transactions on
