Design of Instrumentation Suitable for the Investigation of Charge Buildup Phenomena at Synchronous Orbit.
Abstract
A satellite-borne instrument has been designed to measure the charge buildup phenomena at synchronous orbit. Simultaneous measurements along two orthogonal axes are made. Each axis incorporates 4 electrostatic analyzers (ESA) and 2 solid state spectrometers (SSS). Four ESA's (low energy p, low energy e, high energy p, high energy e) and two SSS's (proton, electron) with four and five energy bins, respectively, in each analyzer provide a logical compromise of energy resolution and high time resolution. The low energy ESA's cover the energy range 0.05 to 1.7 keV; the high energy ESA's cover the 1.7 to 60 keV range. The electron SSS's cover the 30 to 10,000 keV range and the proton SSS's cover the 70 to 35,000 keV range. A complete energy spectrum is generated every 1 second. Design developments on the ESA, SSS, broad band data output and command input circuit are presented. Laboratory tests of an ESA prototype for relative efficiency, response to UV radiation and sensitivity to electrons penetrating the Spiraltron glass walls are discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1976
- Accession Number
- ADA034382
Entities
People
- Bach Sellers
- Frederick A. Hanser
- Jean L. Hunerwadel
- Paul R. Morel