Numerical study of water ice and molecular contamination build up during JWST deployment

Lubos Brieda; Marc Laugharn; Michael Woronowicz; Kelly Henderson-Nelson; Christopher May; Eve Wooldridge

doi:10.1117/12.2635238

3 October 2022 Numerical study of water ice and molecular contamination build up during JWST deployment

Lubos Brieda, Marc Laugharn, Michael Woronowicz, Kelly Henderson-Nelson, Christopher May, Eve Wooldridge

Proceedings Volume 12224, Space Systems Contamination: Prediction, Control, and Performance 2022; 1222403 (2022) https://doi.org/10.1117/12.2635238
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

This paper summarizes a recent numerical analysis of water vapor and volatile condensible material deposition on the James Webb Space Telescope from the initial orbit insertion up to 180 days post launch. The analysis utilized 17 distinct geometry files capturing observatory configuration changes during the deployment. Surface temperature was set from a time-dependent thermal analysis solution. A vapor pressure model was used to calculate the net water ice adsorption. Molecular contamination included a contribution from UV photopolymerization. The analysis predicted levels of ice and molecular accumulation were found to be within the allowable limits specified by the observatory contamination control plan.

Conference Presentation

Citation Download Citation

Lubos Brieda, Marc Laugharn, Michael Woronowicz, Kelly Henderson-Nelson, Christopher May, and Eve Wooldridge "Numerical study of water ice and molecular contamination build up during JWST deployment", Proc. SPIE 12224, Space Systems Contamination: Prediction, Control, and Performance 2022, 1222403 (3 October 2022); https://doi.org/10.1117/12.2635238

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available