Dr. John M. Alred Profile

Dr. John M. Alred

at Jet Propulsion Lab

SPIE Involvement:

Author

Publications (6)

Proceedings Article | 3 October 2022 Presentation + Paper

Particle contamination launch redistribution and effects on the low-earth-orbit infrared SPHEREx telescope

John Alred, Maxwell Martin, William Hoey, Phil Korngut, Jennifer Rocca, Carlos Soares

Proceedings Volume 12224, 122240I (2022) https://doi.org/10.1117/12.2636169

KEYWORDS: Contamination, Particles, Point spread functions, Telescopes, Light scattering, Infrared telescopes, Device simulation, Sensors, Pollution control, Particle contamination

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Proceedings Article | 3 October 2022 Presentation + Paper

Application of contaminant species separation by TGA/MS to unraveling outgassing physics and laws

Jean-François Roussel, David Lansade, John Alred, Anthony Wong, John Anderson, Carlos Soares, Delphine Faye, Guillaume Rioland

Proceedings Volume 12224, 122240N (2022) https://doi.org/10.1117/12.2634672

KEYWORDS: Diffusion, Physics, Chemical species, Data modeling, Chemical analysis, Temperature metrology, Standards development, Mass spectrometry, Epoxies, Data processing

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Proceedings Article | 3 October 2022 Presentation + Paper

Separation of contaminant species by TGA/MS in European and U.S. approaches to outgassing

David Lansade, Jean-François Roussel, John Alred, Anthony Wong, John Anderson, Carlos Soares, Delphine Faye, Guillaume Rioland

Proceedings Volume 12224, 122240M (2022) https://doi.org/10.1117/12.2634565

KEYWORDS: Molecules, Physics, Chemical species, Mass spectrometry, Spectroscopy, Data processing, Cryogenics, Diffusion, Databases, Contamination

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Proceedings Article | 3 October 2022 Presentation + Paper

Contamination control program for the Psyche asteroid mission

Maxwell Martin, John Alred, William Hoey, Cynthia Ly, Carlos Soares

Proceedings Volume 12224, 122240J (2022) https://doi.org/10.1117/12.2633861

KEYWORDS: Space operations, Contamination control, Contamination, Imaging systems, Asteroids, Nitrogen, Mirrors, Satellites, Satellite communications, Multispectral imaging

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Proceedings Article | 24 August 2020 Presentation + Paper

Space launch vehicle transient particle redistribution modeling and implications for optically sensitive payloads

John Anderson, William Hoey, John Alred, Carlos Soares

Proceedings Volume 11489, 114890D (2020) https://doi.org/10.1117/12.2567765

KEYWORDS: Particles, Atmospheric particles, Data modeling, Optics manufacturing, Contamination, Manufacturing, Particle systems, Computational fluid dynamics

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Proceedings Article | 21 August 2020 Presentation + Paper

Predicting terrestrial contamination of the Mars 2020 sample caching system with novel multispecies outgassing and transport models

John Alred, Maxwell Martin, William Hoey, Anthony Wong, Lauren White, Paul Boeder, Savannah Cofer, Adrien Dias-Ribeiro, Carlos Soares

Proceedings Volume 11489, 1148904 (2020) https://doi.org/10.1117/12.2568127

KEYWORDS: Contamination, Molecules, Diffusion, Mars, Statistical modeling, Tin, Carbon, Titanium, Oxides

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Showing 5 of 6 publications

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