DESCRIPTION AND CALIBRATION OF THE PROTON SPECTROMETER FLOWN ON SATELLITE 1969-25C (OV-19).
Abstract
A proton spectrometer measures the directional differential flux of protons with energy from 0.18 to 2.81 MeV. The calibration of the proton energy thresholds and the count-rate meters are described. Background effects are also discussed. Background counting rates in the pulse-height analyzer caused by penetrating protons were negligible only if the energy spectrum of protons fell more rapidly than E to the -2 above E sub p = 10 MeV. The background counting rate due to low-energy electrons can be neglected only if the differential electron flux at 300-keV energy is < 1.2 million electrons/square cm-sec-sr-MeV. Corrections for background due to penetrating protons, low-energy electrons, and high-energy electrons are described in this report. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1970
- Accession Number
- AD0708466
Entities
People
- John R. Stevens
Organizations
- The Aerospace Corporation