Share Email Print

Proceedings Paper

Particulate contaminant removal from spacecraft optical fields of view
Author(s): Arthur Timothy Chen
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Results of an investigation of four FOV particulate contaminant removal methods - photon flux, neutral molecular flux, ion flux and electrostatic field - are presented. Minimum detectable particle sizes are calculated for IR sensors operating under three different scenarios - ground-, limb-, and space-viewing. Trajectories of particles dislodged from spacecraft at several altitudes are calculated. The neutral molecular flux method is the fastest but suffers from the disadvantages of unwanted thrust and limited gas supply. The ion beam method seems effective but slower, as it requires rastering. The radiation pressure method is energy-inefficient; a large power supply is necessary. The electrostatic field method can be effective only if the altitude is above 10,000 km.

Paper Details

Date Published: 18 December 1992
PDF: 12 pages
Proc. SPIE 1754, Optical System Contamination: Effects, Measurement, Control III, (18 December 1992); doi: 10.1117/12.140738
Show Author Affiliations
Arthur Timothy Chen, Boeing Defense & Space Group (Hong Kong)

Published in SPIE Proceedings Vol. 1754:
Optical System Contamination: Effects, Measurement, Control III
A. Peter M. Glassford, Editor(s)

© SPIE. Terms of Use
Back to Top