The Origins Space telescope cryogenic-thermal architecture (Conference Presentation)

Michael J. DiPirro

doi:10.1117/12.2311913

10 July 2018 The Origins Space telescope cryogenic-thermal architecture (Conference Presentation)

Michael J. DiPirro

Proceedings Volume 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave; 1069819 (2018) https://doi.org/10.1117/12.2311913
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The Origins Space Telescope (OST) is studied as a future Mid- and Far-Infrared Observatory. It’s scale is a NASA Astrophysics flagship mission to launch in the mid 2030’s. OST will cover the wavelength range from 6 to 600 µm. To reach the sky background for wavelengths greater than about 15 microns, it is necessary to restrict the telescope emission to temperatures lower than JWST (40 K). For 200 micron wavelengths temperatures of 4 K or lower are required. To achieve this low temperature active cooling is required, along with passive shielding and passive radiation to deep space. Currently two concepts are being studied: Concept 1 with a 9 m diameter primary and a suite of 5 extremely capable instruments providing both imaging and spectroscopy over the entire wavelength range. Concept 1 will require an SLS launch vehicle, currently in development, to reach Sun-Earth L2 (SEL2). Concept 2 is a more modest sized telescope with a collecting area equivalent to a 5 m primary, fewer deployments and 3 or 4 instruments also covering the entire wavelength range for imaging and spectroscopy, although with somewhat reduced spectroscopic resolution, and somewhat slower mapping speed. Concept 2’s mass and volume will fit into currently available rocket capabilities to reach SEL2. This paper will describe OST Concept 2’s cryogenic thermal architecture and thermal model results.

Conference Presentation

Citation Download Citation

Michael J. DiPirro "The Origins Space telescope cryogenic-thermal architecture (Conference Presentation)", Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 1069819 (10 July 2018); https://doi.org/10.1117/12.2311913

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
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Space telescopes

Imaging spectroscopy

Spectroscopes

Telescopes

Astrophysics

Image resolution

James Webb Space Telescope

Show All Keywords

Keywords/Phrases

Search In:

Publication Years