Accession Number:

ADA034382

Title:

Design of Instrumentation Suitable for the Investigation of Charge Buildup Phenomena at Synchronous Orbit.

Descriptive Note:

Scientific interim rept.,

Corporate Author:

PANAMETRICS INC WALTHAM MASS

Report Date:

1976-07-01

Pagination or Media Count:

35.0

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 ESAs low energy p, low energy e, high energy p, high energy e and two SSSs 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 ESAs cover the energy range 0.05 to 1.7 keV the high energy ESAs cover the 1.7 to 60 keV range. The electron SSSs cover the 30 to 10,000 keV range and the proton SSSs 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.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE