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Wednesday, July 22, 2020 | History

2 edition of Theoretical contamination of cryogenic satellite telescopes found in the catalog.

Theoretical contamination of cryogenic satellite telescopes

M Murakami

Theoretical contamination of cryogenic satellite telescopes

by M Murakami

  • 207 Want to read
  • 33 Currently reading

Published by National Aeronautics and Space Administration, Scientific and Technical Information Office, for sale by the National Technical Information Service in [Washington], Springfield, Va .
Written in English

    Subjects:
  • Telescopes,
  • Contamination (Technology)

  • Edition Notes

    StatementM. Murakami
    SeriesNASA technical paper ; 1177
    ContributionsUnited States. National Aeronautics and Space Administration. Scientific and Technical Information Office
    The Physical Object
    Pagination46 p.
    Number of Pages46
    ID Numbers
    Open LibraryOL14931991M

    This Tutorial Text provides a comprehensive introduction to the subject of contamination control, with specific applications to the aerospace industry. The author draws upon his many years as a practicing contamination control engineer, researcher, and teacher. The book examines methods to quantify the cleanliness level required by various contamination-sensitive surfaces and to predict the. The Infrared Astronomical Satellite (IRAS) has completed an unbiased all-sky survey at wavelengths from 10 to um. The design and performance of the focal plane array is described with emphasis on in-orbit measurements of the sensitivity and stability.

    Theoretical contamination of cryogenic satellite telescopes [] Murakami, M. (Masanori), [Washington]: National Aeronautics and Space Administration, Scientific and Technical Information Office ; Springfield, Va.: for sale by the National Technical Information Service, Present day satellite measurements have either good hori- zontal resolution or good vertical resolution. The Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA) instrument was developed to allow global measure- ments with increased spatial resolution in the horizontal as well as in the vertical direction.

    A cryogenic quartz crystal microbalance (CQCM) and four temperature-controlled microbalances (TQCMs) are part of this suite of contamination measuring instruments on board the satellite. This paper describes some of the flight QCM data obtained and analyzed to date. The CQCM is located internal to the SPIRIT 3 cryogenic telescope and is mounted. › Larger image GREENBELT, Md. -- Cryogenic testing is complete for the final six primary mirror segments and a secondary mirror that will fly on NASA's James Webb Space Telescope. The milestone represents the successful culmination of a process that took years and broke new ground in manufacturing and testing large mirrors.


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Theoretical contamination of cryogenic satellite telescopes by M Murakami Download PDF EPUB FB2

THEORETICAL CONTAMINATION OF CRYOGENIC SATELLITE TELESCOPES M. Murakami* Ames Research Center SUMMARY Contamination has two undesirable effects on infrared telescope systems.

First, absorption and scattering can be caused by deposition of condensible gas molecules on cooled surfaces; second, radiation emission and absorption. Optical surfaces of infrared telescopes cooled to about 20 K should be considered to be covered with at least several deposition layers of condensible molecules without any contamination controls.

The effectiveness of the purge gas method of contamination controls was by: 4. Corpus ID: Theoretical contamination of cryogenic satellite telescopes @inproceedings{MurakamiTheoreticalCO, title={Theoretical contamination of cryogenic satellite telescopes}, author={Mitsumasa Murakami}, year={} }.

Optical surfaces of infrared telescopes cooled to about 20 K should be considered to be covered with at least several deposition layers of condensible molecules without any contamination controls.

The effectiveness of the purge gas method of contamination controls was : M. Murakami. Theoretical contamination of cryogenic satellite telescopes / By M. Murakami and United States. National Aeronautics and Space Administration.

Contamination (Technology), Telescopes. Publisher: [Washington]: National Aeronautics and Space Administration, Scientific and Technical Information Office ; Springfield, Va.: For sale by the.

American Institute of Aeronautics and Astronautics Sunrise Valley Drive, Suite Reston, VA Cryogenic telescope on the Infrared Astronomical Satellite (IRAS) F. Low University of Arizona Steward Observatory Tucson, Arizona C. Beichman Jet Propulsion Laboratory California Institute of Technology MS Pasadena, California F.

Gillett Kitt Peak National Observatory Tucson, Arizona J. Houck Cornell. Annotation This practical handbook provides the reader with enough background and specific information to begin conducting thermal analysis and to participate in the thermal design of spacecraft systems.

The book is a revised and updated edition of Satellite Thermal Control Handbook, published in The name change reflects the expanded scope of this work, which now includes thermal.

Table Summary of main scientific cryogenic space programmes. Mission Science do-main Type/class Launch year Cryogenic system In-flight T/K Lifetime Orbit Status IRAS (NASA, NIVR, SERC) IR satellite (sur-veyor) 4He(λ) cryostat 3 d near polar post-ops. COBE (NASA) IR satellite (sur-veyor) 4He(λ) cryostat – d.

Analysis, Simulation and Cryogenic/Mechanical Design for ALMA Band 5 Cartridge MAGNUS STRANDBERG Department of Earth and Space Sciences Chalmers University of Technology Abstract This licentiate thesis describes the work conducted by the author during the development of the ALMA Band 5 cartridge.

Spie Press Book Selected Papers on Cryogenic Optical Systems and Martin Black S.M. Smith (in Stray Light and Contamination in Optical Systems ) 79 BRDF measurements at angstroms and micrometers of optical black surfaces for space telescopes S.M.

Pompea, D.F. Shepard, S. Anderson (in Stray Light and Contamination in Optical. Theoretical contamination of cryogenic satellite telescopes. [Washington]: National Aeronautics and Space Administration, Scientific and Technical Information Office ; Springfield, Va.: For sale by the National Technical Information Service, (OCoLC) Material Type: Government publication, National government publication: Document Type: Book.

E) for the entire range of relative collision energies studied, = eV. UCTION IN CONTAMINATION control studies for an orbiting infrared sensor, a helium purge gas flow outward through the telescope barrel has been discussed [] as a means to prevent con- tamination of the cryogenic primary mirror by deflecting impinging contaminants into the telescope walls.

The assembled components for which cryogenic operation is foreseen, should be tested rstly at 77 K, where most of thermal contraction occurs, and at K if necessary. Other materials, such as the blade material should be separately studied in cas cryogenic operation is foreseen. Some maraging steels have been tested at cryogenic temperatures.

Radio telescopes. Submillimeter and X-ray telescopes: Authors: These papers are concerned with theoretical investigations and the actual production of X-ray, submillimeter (far-IR), and radio telescopes.

possible areas for far-IR investigations, optical systems for airborne submillimeter telescopes, cryogenic systems for satellite-borne. Satellite Contamination and Materials Outgassing Knowledgebase_ An Interactive Database Reference B.D.

Green Physical Sciences, Inc., Andover, Massachusetts Prepared for Marshall Space Flight Center under Contract NAS and sponsored by The Space Environments and Effects Program managed at the Marshall Space Flight Center March Part of the A Cryogenic Engineering Conference Publication book series (ACRE, volume 41) Abstract An optical test Dewar has been constructed with the unique capability to test mirrors of diameter ≤ 1 m, f≤6, at temperatures from to 5 K with a ZYGO Mark IV/V interferometer.

Part of the Advances in Cryogenic Engineering book series (ACRE, volume 43) Abstract The Space Infrared Telescope Facility (SIRTF) Observatory will be launched in the year and will provide unprecedented sensitivity to explore the birth and evolution of the universe.

large cryogenic telescopes. In this paper we present the development of the Φ m telescope for Herschel Mission. Herschel main goal is to study how the first stars and galaxies were formed and evolved.

The Herschel Space telescope, using silicon carbide technology will be the largest space imagery telescope ever launched. The. Description. The number of satellite systems that require some form of cryogenic cooling has grown enormously over the last several years. With so many engineers, scientists, and technicians working on cryogenic systems for the first time in their careers, the need for a single resource that touched on all the technologies relevant to cryogenics was apparent.

Contamination measurements during development and testing of the SPIRIT III cryogenic infrared telescope James S. Dyer, Russell S. Mikesell, Radford L.

Perry, Tracy Mikesell, James J. Guregian.The five QCMs on board the satellite provided data that have been invaluable in characterizing contamination levels around the spacecraft and inside the SPIRIT 3 cryogenic telescope.

One of the QCMs, the CQCM, was located internal to the SPIRIT 3 cryogenic telescope and was mounted adjacent to the primary mirror.The effectiveness of gas purging to reduce contamination under thermal vacuum conditions. Author links open overlay (). ' M Murakami, Theoretical Contamination of Cryogenic Satellite Telescopes, NASA TP (April ).

' M A Hetrick and C C Pappas, AIAA/IES/ASTM 10th Space Simulation Conf Technical Paperp 87 (). 5 E R F.