Contamination control for the space infrared observatory SPICA

Naoki Isobe; Takao Nakagawa; Shun Okazaki; Yoichi Sato; Makiko Ando; Susumu Baba; Yuka Miura; Eiji Miyazaki; Yugo Kimoto; Junichiro Ishizawa; Hiroumi Tani; Kenta Maruyama; Fumitaka Urayama; Akihito Mori

doi:10.1117/12.2056009

28 August 2014 Contamination control for the space infrared observatory SPICA

Naoki Isobe, Takao Nakagawa, Shun Okazaki, Yoichi Sato, Makiko Ando, Susumu Baba, Yuka Miura, Eiji Miyazaki, Yugo Kimoto, Junichiro Ishizawa, Hiroumi Tani, Kenta Maruyama, Fumitaka Urayama, Akihito Mori

Author Affiliations +

Proceedings Volume 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave; 914348 (2014) https://doi.org/10.1117/12.2056009
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

The contamination control for the next-generation space infrared observatory SPICA is presented. The optical performance of instruments on space observatories are often degraded by particulate and/or molecular contamination. Therefore, the contamination control has a potential to produce a significant risk, and it should be investigated in the risk mitigation phase of the SPICA development. The requirements from contamination- sensitive components onborad SPICA, the telescope assembly and focal plane instruments, are summarized. Possible contamination sources inside and outside the SPICA spacecraft were investigated. Based on impact on the SPICA system design, the following contamination sources were extensively studied through simulation and measurement; (1) outgassing from the payload module surrounding the telescope mirror and focal plane instruments, (2) contamination due to the thruster plume, and (3) environmental contamination during the integration, storage and verification phases. Although the outgas from the payload module and the thruster plume were estimated to produce only a negligible influence, the environmental contamination was suggested to affect significantly the telescope and focal plane instruments. Reasonable countermeasures to reduce the environmental contamination were proposed, some of which were confirmed to be actually effective.

Citation Download Citation

Naoki Isobe, Takao Nakagawa, Shun Okazaki, Yoichi Sato, Makiko Ando, Susumu Baba, Yuka Miura, Eiji Miyazaki, Yugo Kimoto, Junichiro Ishizawa, Hiroumi Tani, Kenta Maruyama, Fumitaka Urayama, and Akihito Mori "Contamination control for the space infrared observatory SPICA", Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 914348 (28 August 2014); https://doi.org/10.1117/12.2056009

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
11 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Contamination

Space telescopes

Telescopes

Mirrors

Space operations

Contamination control

Molecules

Show All Keywords

Keywords/Phrases

Search In:

Publication Years