Accession Number:

ADA272419

Title:

Long Duration Exposure Facility (LDEF) Contamination Study

Descriptive Note:

Final rept.

Corporate Author:

ARIZONA UNIV TUCSON OPTICAL SCIENCES CENTER

Personal Author(s):

Report Date:

1993-10-01

Pagination or Media Count:

16.0

Abstract:

This report describes the optical measurements that were taken of LDEF surfaces during the deintegration of LDEF from February to April 1990. This project was one part of an overall effort conducted by Boeing Aerospace to determine and track contamination on LDEF. The purpose of this portion of the contamination project was to provide early documentation of the contamination level on LDEF experiments before shipment and disassembly by the principle investigators PI. 35 of experiment trays located on all areas of LDEF were examined to, in particular, catalogue global differences in contamination depending on tray location. The optical measurements were performed with a Model BHMJ Nomarski microscope which had also darkfield and oblique lighting capabilities. The optical measurements were documented by video and 35-mm cameras that could be attached to the microscope. Approximately 15 hours of video and 17 rolls of film 24 exposure were taken. A full list of all trays and experiments observed is presented in Appendix C. Due to the high volume of data, a short 10-min. Video has been compiled to illustrate the different contamination processes observed on LDEF.

Subject Categories:

  • Optical Detection and Detectors
  • Astronautics
  • Air Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE