Accession Number:

ADA261729

Title:

Detailed Component Design for a Compact Environmental Anomaly Sensor (CEASE)

Descriptive Note:

Scientific rept. no. 2

Corporate Author:

AMPTEK INC BEDFORD MA

Report Date:

1992-11-16

Pagination or Media Count:

56.0

Abstract:

As the size and sophistication of spacecraft have increased, anomalies in operational performance caused by the interaction of the energetic- particle population and the spacecraft have likewise increased. The Compact Environmental Anomaly Sensor CEASE is being developed as a small, low-power device to monitor space weather and provide autonomous warning of conditions that could cause operational anomalies. Based on the sensor-design and trade-off studies for CEASE, a dosimeter set consisting of solid-state detectors behind aluminum absorbers of several thicknesses has been chosen. The outputs of the detectors are fed into algorithms that warn of certain anomalies 1 surface dielectric charging, 2 deep dielectric charging, 3 total radiation dose behind 0.035 gcm to the 2nd power, 4 total dose behind 0.41 gcm to the 2nd power, and 5 single event upsets. From seven quantities derived by algorithm processing, eight warning levels 1, 3, 100...3000 x base are obtained for each of the five anomalies. Level flags can then be selected for a particular application. For such a CEASE instrument, we estimate a volume of 64 in to the 3rd power 4-inch cube, a weight of 2 pounds, and power dissipation of 2 watts.

Subject Categories:

  • Optical Detection and Detectors
  • Magnetic and Electric Field Detection and Detectors
  • Unmanned Spacecraft
  • Manned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE