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You searched on: Author: howard yoon

Displaying records 31 to 40 of 129 records.
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31. Extension of the NIST spectral responsivity scale to the infrared using improved-NEP pyroelectric detectors
Published: 6/2/2009
Authors: George P Eppeldauer, Jinan Zeng, Howard W Yoon, Boris Wilthan, Thomas C Larason, Leonard M Hanssen
Abstract: Routine NIST spectral responsivity calibrations are needed for the infrared range. Low NEP pyroelectric radiometers have been developed for traditional monochromator applications to extend the responsivity scale to the infrared. After NEP tests, the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900961

32. Radiometer standard for absolute responsivity calibrations from 950 nm to 1650 nm with 0.05% (k = 2) uncertainty
Published: 6/2/2009
Authors: George P Eppeldauer, Howard W Yoon, Yuqin Zong, Thomas C Larason, Allan W. Smith, M. Racz
Abstract: A sphere-input transfer-standard detector has been developed to calibrate detectors and radiometers for absolute spectral power, irradiance, and radiance responsivity in the near-IR range with uncertainties similar to those of silicon trap-detector c ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900973

33. Evaluation of Thermal Imaging Cameras
Published: 10/1/2008
Authors: Francine K. Amon, Andrew J. Lock, Nelson P Bryner, Joseph Paul Rice, Howard W Yoon
Abstract: Four thermal infrared cameras that were provided by Bureau of Industry and Security (BIS) to NIST were each evaluated by the NIST Optical Technology Division (OTD) for three metrics: Noise-equivalent Temperature Difference (NETD), Minimum Detectable ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900887

34. Thermodynamic-Temperature Determinations of the Ag and Au Freezing Temperatures Using a Detector-Based Radiation Thermometer
Published: 5/20/2007
Authors: Howard W Yoon, David W Allen, Charles E Gibson, Maritoni Abatayo Litorja, Robert D. Saunders, Steven W Brown, George P Eppeldauer, Keith R. Lykke
Abstract: We describe the development of a radiation thermometer calibrated for spectral radiance responsivity using cryogenic, electrical-substitution radiometry to determine the thermodynamic temperatures of the Ag- and Au-freezing temperatures. The absolut ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840978

35. AC-mode SW-IR radiation thermometers for measurement of ambient temperatures
Published: 5/10/2007
Authors: George P Eppeldauer, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104430

36. Short-wave infrared radiometers design and characterization
Published: 4/1/2007
Authors: George P Eppeldauer, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104429

37. The use of thermo-electric cooled short-wave infrared detectors in heat-seeking systems
Published: 2/14/2007
Authors: Howard W Yoon, George P Eppeldauer
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104808

38. Once is Enough in Radiometric Calibrations
Series: Journal of Research (NIST JRES)
Published: 2/1/2007
Authors: Gerald T Fraser, Charles E Gibson, Howard W Yoon, Albert C Parr
Abstract: The successful development of an Optical Technology Division quality system for optical radiation measurement services has provided the opportunity to reconsider the existing calibration procedures to improve quality and reduce costs. We have institu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841160

39. The use of thermo-electric cooled short-wave infrared detectors in heat-seeking systems
Published: 2/1/2007
Author: Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101796

40. Synchrotron Radiation Based Irradiance Calibration From 200 nm to 400 nm at SURF III
Published: 1/1/2007
Authors: Uwe Arp, Charles E Gibson, Keith R. Lykke, Albert C Parr, Robert D. Saunders, D J Shin, Ping-Shine Shaw, Zhigang Li, Howard W Yoon
Abstract: A new facility for measuring source irradiance was commissioned recently at the National Institute of Standards and Technology (NIST). The facility uses the calculable radiation from the Synchrotron Ultraviolet Radiation Facility (SURF III) as the pr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841022



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