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Author: thomas larason

Displaying records 21 to 30 of 38 records.
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21. Responsivity calibration methods for 365 nm irradiance meters
Published: 4/1/2001
Authors: Thomas C Larason, Steven W Brown, George P Eppeldauer, Keith R Lykke

22. Absolute Radiometric Calibration of Digital Imaging Systems, ed. by M.M. Blouke, J. Canosa, N. Sampat
Published: 1/1/2001
Authors: Steven W Brown, Thomas C Larason, C Habauzit, George P Eppeldauer, Yoshihiro Ohno, Keith R Lykke

23. Avoiding Errors in UV Radiation Measurements
Published: 1/1/2001
Author: Thomas C Larason

24. Method of Measuring Shunt Resistance of Photodiodes
Published: 1/1/2001
Authors: P R Thompson, Thomas C Larason
Abstract: A method of measuring the shunt resistance of diodes, specifically photodiodes, is examined and the procedure of how the method is implemented using LabVIEW is detailed. Rudimentary comparison with other accepted methods in industry is done. The un ...

25. Sources of Error in UV Radiation Measurements
Published: 1/1/2001
Authors: Thomas C Larason, C L Cromer

26. Sources of Uncertainty in UV Radiation Measurements
Published: 1/1/2001
Authors: Thomas C Larason, Christopher L Cromer
Abstract: Increasing commercial, scientific, and technical applications involving ultraviolet (UV) radiation has led to the demand for improved understanding of the performance of instrumentaion used to measure this radiation. There has been an effort by manu ...

27. Improved Near-Infrared Spectral Responsivity Scale
Series: Journal of Research (NIST JRES)
Published: 9/1/2000
Authors: Ping-Shine Shaw, Thomas C Larason, R Gupta, Steven W Brown, Keith R Lykke
Abstract: A cryogenic radiometer-based system was constructed at the National Institute of Standards and Technology (NIST) for absolute radiometric measurements to improve detector spectral responsivity scales in the wavelength range from 900 nm to 1800 nm. I ...

28. Realization of a spectral radiance responsivity scale with a laser-based source and Si radiance meters
Published: 1/1/1999
Authors: George P Eppeldauer, Steven W Brown, Thomas C Larason, M Racz, R Lykke k

29. Optical Characterization of Diffuser-Input Standard Irradiance Meters
Published: 9/1/1998
Authors: George P Eppeldauer, M Racz, Thomas C Larason
Abstract: Standard quality irradiance meters have been developed at the National Institute of Standards and Technology (NIST) to realize detector based spectral irradiance scale. The design criteria and the optical and radiometric characterization of diffuser ...

30. NIST Measurement Services: Spectroradiometric Detector Measurements: Part I - Ultraviolet Detectors and Part II - Visible to Near-Infrared Detectors
Series: Special Publication (NIST SP)
Report Number: 250-41
Published: 2/1/1998
Authors: Thomas C Larason, Sally Skidmore Bruce, Albert C Parr
Abstract: The National Institute of Standards and Technology (NIST) supplies calibrated photodiode standards and special tests of photodetectors for absolute spectral response from 200 nm to 1800 nm. (This service will soon to be expanded to 20 [mu]m in the i ...

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  • SP 250-XX: Calibration Services
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  • SP 300-XX: Precision Measurement and Calibration
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