Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Yana Z. Williams"'
Autor:
Yana Z. Williams, Joe Predina, Hyung R. Lee, Kory J. Priestley, Georgi T. Georgiev, Cindy Young, Christopher R. Randall, Mohan Shankar, Richard Hertel, Loren Woody
Publikováno v:
Earth Observing Systems
Radiation Budget Instrument (RBI) is a scanning radiometer that measures earth reflected solar radiance and thermal emission at the top-of-atmosphere. RBI has three radiance channels that cover 0.25-5μm, 5-100μm and 0.25-100μm spectral bands respe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::102ed201fcf980c01437ac7b332cdb41
https://doi.org/10.1117/12.2326032
https://doi.org/10.1117/12.2326032
Publikováno v:
SPIE Proceedings.
A full-spectral monitoring (FSM) system utilizing (charged coupled device) CCD array spectroradiometer and optical fiber has been developed and implemented for accelerated laboratory weathering instruments. The system provides in-situ, real-time irra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fa4aabfc158c5f80b6d4b71f9709470
https://doi.org/10.1117/12.2018960
https://doi.org/10.1117/12.2018960
Autor:
Yana Z. Williams, Kevin George Harding
Publikováno v:
SPIE Proceedings.
Phase shifting based measurements have been well established for use in both interferometry and structured light based measurements. The use of modern LCD, DLP or LCOS based projectors to create and shift projected patterns for use in phase shifting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e0ce6ad16c9cd96967f2ccd0f428c8d
https://doi.org/10.1117/12.871214
https://doi.org/10.1117/12.871214
Autor:
Feng Pan, J. E. Tkaczyk, Yanfeng Du, Tan Zhang, Kristian W. Andreini, Glenn Bindley, Henry Chen, Yana Z. Williams
Publikováno v:
IEEE Nuclear Science Symposuim & Medical Imaging Conference.
The high cost of fine spectroscopic grade CZT crystals with large gamma-ray stopping power is a limiting factor for widespread utilization in detector applications. Large volume, monolithic crystal parts suffer a lower yield because of high probabili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6758504b83339e16a3116c36fc9e0b0
https://doi.org/10.1109/nssmic.2010.5874518
https://doi.org/10.1109/nssmic.2010.5874518
Autor:
Tan Zhang, J. Eric Tkaczyk, Henry Chen, Michael Dudley, Glenn Bindley, Yana Z. Williams, Chris Nafis, Balaji Ragothomachar, Kristian W. Andreini, Jason McKenzie, Gil Abramovich, Kevin George Harding, P. J. Bednarczyk
Publikováno v:
IEEE Nuclear Science Symposuim & Medical Imaging Conference.
Widespread utilization of Cadmium Zinc Telluride (CZT) in nuclear radiation detectors is currently limited by the cost of high spectroscopic quality material. Yield of devices is limited by non-uniformity in the charge collection efficiency associate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c1f617952b38e943acffe4efa11cc63
https://doi.org/10.1109/nssmic.2010.5874497
https://doi.org/10.1109/nssmic.2010.5874497
Autor:
Wenwu Zhang, Gil Abramovich, Kristian W. Andreini, Tan Zhang, J. Eric Tkaczyk, Christopher Allen Nafis, Kevin George Harding, Yana Z. Williams
Publikováno v:
SPIE Proceedings.
Current spectroscopic detector crystals contain defects that prevent economic production of devices with sufficient energy resolution and stopping power for radioisotope discrimination. This is especially acute for large monolithic crystals due to in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e7c1bc6e80f07d3d337b6cbd568ee5b
https://doi.org/10.1117/12.865861
https://doi.org/10.1117/12.865861
Autor:
Eric R. Tkaczyk, Glenn Bindley, Christopher Allen Nafis, Henry Chen, Kristian W. Andreini, Yana Z. Williams, Gil Abramovich, Kevin George Harding
Publikováno v:
SPIE Proceedings.
CdZnTe is a high efficiency, room temperature radiation detection material that has attracted great interesting in medical and security applications. CZT crystals can be grown by various methods. Particularly, CZT grown with the Transfer Heater Metho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db8205d34903b705562e2d1069bfa713
https://doi.org/10.1117/12.861038
https://doi.org/10.1117/12.861038
Autor:
Kristian W. Andreini, Richard J. Matyi, Tan Zhang, Wen Li, Yana Z. Williams, Henry Chen, Glenn Bindley, J. Eric Tkaczyk, Jun Cui, Kevin George Harding
Publikováno v:
2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC).
A pulsed laser method is used to map the charge collection amplitude and electron mobility-lifetime product (μ e τ e ) in Cd 1−x Zn x Te (x = 0.1) pieces especially selected to include regions with crystallographic defects. Additionally, ultrasou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5eaa59622412a9a8df69dfc95eddfb90
https://doi.org/10.1109/nssmic.2009.5402247
https://doi.org/10.1109/nssmic.2009.5402247
Autor:
Eric R. Tkaczyk, Yana Z. Williams, Gil Abramovich, Kevin George Harding, Christopher Allen Nafis
Publikováno v:
SPIE Proceedings.
The fabrication of new optical materials has many challenges that suggest the need for new metrology tools. To this purpose, the authors designed a system for localizing 10 micron embedded defects in a 10-millimeter thick semitransparent medium. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0084ebd3511f2f3027130269122ab41
https://doi.org/10.1117/12.830444
https://doi.org/10.1117/12.830444