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3 October 2022 Laser based cleaning and in-situ verification of bio-loading for planetary protection (Conference Presentation)
Andrew Robbins, Sean Jergensen, Meg Abraham, Henry Helvajian
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Proceedings Volume 12224, Space Systems Contamination: Prediction, Control, and Performance 2022; 122240U (2022) https://doi.org/10.1117/12.2636318
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States
Abstract
Planetary protection requirements help protect other planets and moons from Earth’s biological matter, but restrictions on spacecraft design, compatibility with heat and chemical treatments, and the need for lengthy verification protocols drive cost and schedule. In this work we present an alternative methodology both for detecting surface microbes and for sterilizing them using a low power, pulsed UV laser-based scanning technique that can generate spectral maps of a surface. At sufficient powers, cells can also be eradicated, thus providing both detection and sterilization capabilities. We show how this tool can be practically applied to spacecraft materials to transform current practices.
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Andrew Robbins, Sean Jergensen, Meg Abraham, and Henry Helvajian "Laser based cleaning and in-situ verification of bio-loading for planetary protection (Conference Presentation)", Proc. SPIE 12224, Space Systems Contamination: Prediction, Control, and Performance 2022, 122240U (3 October 2022); https://doi.org/10.1117/12.2636318
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KEYWORDS
Microorganisms
Luminescence
Ultraviolet radiation
Infrared imaging
Infrared spectroscopy
Planetary science
Pulsed laser operation
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