Solar Cycle Variations of Geomagnetically Trapped Radiation.
Abstract
Observations of energetic geomagnetically trapped protons at low altitudes were made during the period December 1968 through May 1973 in order to study the solar cycle variations of geomagnetically trapped proton radiation for the eleven year solar cycle dating from November 1961. These observations consist of a series of flux measurements of 55 Mev protons made on nuclear emulsion radiation detectors flown on recoverable Air Force satellites, flux measurements of 115 Mev protons made on a sample selected from these, and preliminary flux measurements of six to 35 Mev protons from the AFCRL particle identifier on Air Force satellite S72-1. These observations form the basis for a series of trapped proton radiation models with variable parameters which are capable of predicting angular distributions, differential fluxes, integral fluxes, and omnidirectional fluxes as a function of spacial geometry and time. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 31, 1973
- Accession Number
- AD0774043
Entities
People
- Ernest C. Holeman