Design Study of Ion Anti-Contamination System.
Abstract
Cryogenically-cooled, high straylight rejection, infrared sensors are currently planned for use in space surveillance applications, An investigative study was made to determine the optical contamination problem of these sensors during a four-year mission duration and the feasibility of designing an anti-contamination system that can be adapted to these sensors. The optical contamination problem is the increase in optical scatter of the telescope primary mirror due to cryodeposits of atomic oxygen (external) and water vapor (self-generated), and particulate contamination (self-generated). At sensor altitude of 1,000 Km the atomic oxygen cryodeposit on the mirror, accumulated over four years of mission life, may be a factor of 100 higher than what is considered manageable.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 07, 1984
- Accession Number
- ADA144197
Entities
People
- W. K. Wong
Organizations
- Utah State University