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Calibration of Rama...
Calibration of Raman Bandwidths on the Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) Deep Ultraviolet Raman and Fluorescence Instrument Aboard the Perseverance Rover
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- Jakubek, Ryan S. (författare)
- NASA Johnson Space Center, USA
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- Bhartia, Rohit (författare)
- Photon Systems Incorporated, USA
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- Uckert, Kyle (författare)
- California Institution of Technology, USA
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- Asher, Sanford A. (författare)
- University of Pittsburgh, USA
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- Czaja, Andrew D. (författare)
- University of Cincinnati, USA
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- Fries, Marc D. (författare)
- NASA Johnson Space Center, USA
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- Hand, Kevin (författare)
- California Institution of Technology, USA
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- Haney, Nikole C. (författare)
- NASA Johnson Space Center, USA
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- Razzell Hollis, Joseph (författare)
- The Natural History Museum, UK
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- Minitti, Michelle (författare)
- Framework, USA
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- Sharma, Shiv K. (författare)
- University of Hawaii, USA
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- Sharma, Sunanda (författare)
- California Institution of Technology, USA
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- Siljeström, Sandra (författare)
- RISE,Metodik för produktframtagning
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: Applied Spectroscopy. - : SAGE Publications Inc.. - 0003-7028 .- 1943-3530.
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this work, we derive a simple method for calibrating Raman bandwidths for the Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) instrument onboard NASA’s Perseverance rover. Raman bandwidths and shapes reported by an instrument contain contributions from both the intrinsic Raman band (IRB) and instrumental artifacts. To directly correlate bandwidth to sample properties and to compare bandwidths across instruments, the IRB width needs to be separated from instrumental effects. Here, we use the ubiquitous bandwidth calibration method of modeling the observed Raman bands as a convolution of a Lorentzian IRB and a Gaussian instrument slit function. Using calibration target data, we calculate that SHERLOC has a slit function width of 34.1 cm–1. With a measure of the instrument slit function, we can deconvolve the IRB from the observed band, providing the width of the Raman band unobscured by instrumental artifact. We present the correlation between observed Raman bandwidth and intrinsic Raman bandwidth in table form for the quick estimation of SHERLOC Raman intrinsic bandwidths. We discuss the limitations of using this model to calibrate Raman bandwidth and derive a quantitative method for calculating the errors associated with the calibration. We demonstrate the utility of this method of bandwidth calibration by examining the intrinsic bandwidths of SHERLOC sulfate spectra and by modeling the SHERLOC spectrum of olivine.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Bandwidth; Luminescence; NASA; Silicate minerals; Sulfur compounds; Chemical instruments; Deep ultraviolet Raman; Mars; Organics; Property; Raman; Raman bands; Raman bandwidths; SIMPLE method; Ultraviolet fluorescence; Calibration
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Jakubek, Ryan S.
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Bhartia, Rohit
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Uckert, Kyle
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Asher, Sanford A ...
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Czaja, Andrew D.
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Fries, Marc D.
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visa fler...
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Hand, Kevin
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Haney, Nikole C.
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Razzell Hollis, ...
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Minitti, Michell ...
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Sharma, Shiv K.
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Sharma, Sunanda
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Siljeström, Sand ...
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