Contamination control of the SABER cryogenic infrared telescope

Dyer, James S.; Brown, Steve B.; Esplin, Roy W.; Hansen, Glen; Jensen, Scott; Stauder, John L.; Zollinger, Lorin

doi:10.1117/12.481652

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…This program has been a useful tool not only to determine acceptable contaminant levels for contaminantion control plans, but has also been used to identify the cause for signal loss. These program has been useful for IR instruments at SDL including SABER (Sounding of the Atmosphere using Broadband Emission Spectroscopy) 7 and others.…”

Section: Introductionmentioning

confidence: 99%

Calculation of spectral degradation due to contaminant films on infrared and optical sensors

Gamble

Dennison

Wood³

et al. 2002

SPIE Proceedings

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Molecular surface contaminants can cause degradation of optical systems, especially if the contaminants exhibit strong absorption bands in the region of interest. Different strategies for estimation of spectral degradation responses due to uniform films for various types of systems are reviewed. One tool for calculating the effects of contaminant film thickness on signal degradation in the mid IR region is the simulation program CALCRT. The CALCRT database will be reviewed to correlate spectral n and k values associated with specific classes of organic functional groups. Various schemes are also investigated to estimate the spectral degradation in the UV-Vis region. Experimental measurements of reflectance changes in the IR to UV-Vis regions due to specific contaminants will be compared. Approaches for estimating changes in thermal emissivity and solar absorptivity will also be discussed.

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Section: Introductionmentioning

confidence: 99%

Calculation of spectral degradation due to contaminant films on infrared and optical sensors

Gamble

Dennison

Wood³

et al. 2002

SPIE Proceedings

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“…To reduce vulnerability to water outgassing and to control particulate redistribution and contamination within the FPA (which is not hermetically sealed) SABER was designed with an optimized purge and vent system (Dyer et al., 2002) as shown in Figure 9. The purge system maintained the cleanliness and optical quality for those times when SABER was not being operated or stored in vacuum.…”

Section: The Saber Instrumentmentioning

confidence: 99%

Sounding of the Atmosphere Using Broadband Emission Radiometry (SABER): Instrument and Science Measurement Description

Esplin,

Mlynczak,

Russell

et al. 2023

Earth and Space Science

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SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) is a 10‐channel infrared radiometer that is one of four instruments on the NASA TIMED (Thermosphere‐Ionosphere‐Mesosphere Energetics and Dynamics) satellite mission to study the structure, energetics, chemistry, and dynamics of the Earth's mesosphere and lower thermosphere. Each of the ten SABER channels has a unique filter over its detector. The filter passes infrared radiation within a defined spectral region that optimizes the ability to derive temperature and constituent concentrations from the infrared radiance measurements. The TIMED spacecraft was launched into a 625 km circular polar orbit (74.1° inclination) via a Boeing Delta II rocket from Vandenberg Air Force Base on 7 December 2001. SABER continues to operate nominally and collect data routinely as it has for over 21 years. Nearly 2,200 peer‐reviewed journal articles have been published worldwide using SABER data. A list of these articles is included in Supporting Information S1 accompanying this paper. This paper presents a detailed technical description of the SABER instrument including major subsystems of the instrument and technical performance parameters. This paper comprehensively describes the instrument and its components and provides final instrument design and performance parameters. The motivation for this paper is to document this information permanently for future reference. The Space Dynamics Laboratory (SDL) of Utah State University designed, fabricated, and calibrated the SABER instrument in close collaboration with NASA Langley Research Center, Hampton University, and Global Atmospheric Technologies and Science (GATS).

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“…To reduce vulnerability to water outgassing and to control particulate redistribution and contamination within the detector assembly (which is not hermetically sealed) SABER was designed with an optimized purge and vent system (Dyer et al, 2002) as shown in Figure 9. The purge system maintained the cleanliness and optical quality for those times when SABER was not being operated under or stored in vacuum.…”

Section: Saber Purge and Vent Systemmentioning

confidence: 99%

Sounding of the Atmosphere using Broadband Emission Radiometry (SABER): Instrument and Science Measurement Description

Esplin

Mlynczak

Russell

et al. 2023

Preprint

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SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) is a 10-channel infrared radiometer that is one of four instruments on the NASA TIMED (Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics) satellite mission to study the structure, energetics, chemistry, and dynamics of the Earth’s mesosphere and lower thermosphere. The TIMED spacecraft was launched into a 625 km circular polar orbit (74.1º inclination) via a Boeing Delta II rocket from Vandenberg Air Force Base on 7 December 2001. SABER continues to operate nominally and collect data routinely as it has for over 21 years. Over 2,200 peer-reviewed journal articles have been published worldwide using SABER data. A list of these articles is included in the Supporting Information accompanying this paper. The Space Dynamics Laboratory (SDL) of Utah State University designed, fabricated, and calibrated the SABER instrument in close collaboration with NASA Langley Research Center, Hampton University, and Global Atmospheric Technologies and Science (GATS). This paper provides a detailed technical description of the SABER instrument, including performance specifications and observed instrument performance.

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Contamination control of the SABER cryogenic infrared telescope

Cited by 4 publications

References 8 publications

Calculation of spectral degradation due to contaminant films on infrared and optical sensors

Calculation of spectral degradation due to contaminant films on infrared and optical sensors

Sounding of the Atmosphere Using Broadband Emission Radiometry (SABER): Instrument and Science Measurement Description

Sounding of the Atmosphere using Broadband Emission Radiometry (SABER): Instrument and Science Measurement Description

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