Copyright 2001 Society of Photo-Optical Instrumentation Engineers.
This paper is in SPIE Proceeding 4495, Instruments, Methods and Missions for Astrobiology IV, edited by R. B. Hoover, G. V. Levin, R. P. Paepe, and A. Y. Rozanov, p.158-169, 2002. It is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in the paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Manuscript for SPIE Proceeding 4495 that describes part of this work (in Adobe PDF)
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