Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Keith R. Lykke"'
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 9, Iss 7, p 070701 (2006)
We have measured the absolute radiant flux of synchrotron radiation as a function of the angle above and below the orbital plane with high accuracy at the Synchrotron Ultraviolet Radiation Facility (SURF III) at the National Institute of Standards an
Externí odkaz:
https://doaj.org/article/e2f09c9ca2d1443b8dbfba8b1f3e20f7
Autor:
Steven W. Brown, Yuqin Zong, Howard W. Yoon, Ping-Shine Shaw, Keith R. Lykke, John T. Woodward
Publikováno v:
Rev Sci Instrum
Recent developments at the National Institute of Standards and Technology’s facility for Spectral Irradiance and Radiance responsivity Calibrations using Uniform Sources (SIRCUS) are presented. The facility is predicated on the use of broadly tunab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdff2a194b561cc1ac24897833cb20bc
https://pubmed.ncbi.nlm.nih.gov/30278699
https://pubmed.ncbi.nlm.nih.gov/30278699
Autor:
David Moyer, Keith R. Lykke, Eugene Waluschka, Hassan Oudrari, Steven W. Brown, Xiaoxiong Xiong, Jeff McIntire
Publikováno v:
Applied optics. 55(27)
Polarization sensitivity is a critical property that must be characterized for spaceborne remote sensing instruments designed to measure reflected solar radiation. Broadband testing of the first Joint Polar-orbiting Satellite System (JPSS-1) Visible
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a89d2b1eef498a69c33227f9aecfcde
https://pubmed.ncbi.nlm.nih.gov/27661568
https://pubmed.ncbi.nlm.nih.gov/27661568
Publikováno v:
Metrologia. 49:S124-S129
Continuous-wave (CW) tunable lasers have been used for detector calibrations, especially for spectral irradiance and radiance responsivity, for many years at the National Institute of Standards and Technology (NIST) and other national metrology insti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71d63d1e978e99611b20d7243db50898
https://doi.org/10.1088/0026-1394/49/2/s124
https://doi.org/10.1088/0026-1394/49/2/s124
Autor:
David Moyer, Christopher C. Moeller, Kevin R. Turpie, James J. Butler, Steven W. Brown, Robert A. Barnes, Keith R. Lykke, Bruce Guenther, F. DeLuccia, Thomas Schwarting
Traditionally, satellite instruments that measure Earth-reflected solar radiation in the visible and near infrared wavelength regions have been calibrated for radiance responsivity in a two-step method. In the first step, the relative spectral respon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b948c82fd6f1dddbd3560521b82eb56c
https://europepmc.org/articles/PMC4959044/
https://europepmc.org/articles/PMC4959044/
Autor:
George P. Eppeldauer, Keith R. Lykke, Steven W. Brown, Charles E. Gibson, Howard W. Yoon, Allan W. Smith
Publikováno v:
International Journal of Thermophysics. 32:2217-2229
Using radiometry, thermodynamic temperatures can be determined by a variety of experimental techniques. Radiometers without imaging optics can be calibrated for spectral power or spectral irradiance responsivity, and radiometers with imaging optics c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ceb60d505a3499cd6164148aee98c93
https://doi.org/10.1007/s10765-011-1056-1
https://doi.org/10.1007/s10765-011-1056-1
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 222:166-169
The quantum yields for two actinometers have been determined using a tunable laser light source at the National Institute of Standards and Technology (NIST) in Gaithersburg, MD. The power of this light source has been calibrated against an absolute c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a6038260f6e1d3b2c538b8fd6d2163d
https://doi.org/10.1016/j.jphotochem.2011.05.017
https://doi.org/10.1016/j.jphotochem.2011.05.017
Publikováno v:
Metrologia. 47:429-434
In 2004, the National Institute of Standards and Technology established the ultraviolet spectral irradiance scale from 200 nm to 400 nm using the calculable irradiance of the Synchrotron Ultraviolet Radiation Facility (SURF). Since the establishment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c6d100a024aa1a7240f5e34f48c8d86
https://doi.org/10.1088/0026-1394/47/4/008
https://doi.org/10.1088/0026-1394/47/4/008
Publikováno v:
Metrologia. 46:S219-S223
Absolute stellar photometry is based on 1970s terrestrial measurements of the star Vega with instruments calibrated using the Planckian radiance from a Cu fixed-point blackbody. Significant advances in absolute radiometry have been made in the last 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1298137f1f7e0e359668f3b453edbd2d
https://doi.org/10.1088/0026-1394/46/4/s16
https://doi.org/10.1088/0026-1394/46/4/s16
Publikováno v:
Metrologia. 46:S191-S196
We report theory and measurements of a simple and absolute technique for the determination of the total emitted spectral fluorescence yield inside an integrating sphere from the sphere coating under irradiation with a monochromatic beam. This techniq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c06dda9a0b650ca26bee72f881a90645
https://doi.org/10.1088/0026-1394/46/4/s11
https://doi.org/10.1088/0026-1394/46/4/s11