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216 Matching Results
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Development of Cdznte Radiation Detectors
Cadmium Zinc Telluride (CdZnTe or CZT) is a very attractive material for room-temperature semiconductor detectors because of its wide band-gap and high atomic number. Despite these advantages, CZT still presents some material limitations and poor hole mobility. In the past decade most of the developing CZT detectors focused on designing different electrode configurations, mainly to minimize the deleterious effect due to the poor hole mobility. A few different electrode geometries were designed and fabricated, such as pixelated anodes and Frisch-grid detectors developed at Brookhaven National Lab (BNL). However, crystal defects in CZT materials still limit the yield of detector-grade crystals, and, in general, dominate the detector's performance. In the past few years, our group's research extended to characterizing the CZT materials at the micro-scale, and to correlating crystal defects with the detector's performance. We built a set of unique tools for this purpose, including infrared (IR) transmission microscopy, X-ray micro-scale mapping using synchrotron light source, X-ray transmission- and reflection-topography, current deep level transient spectroscopy (I-DLTS), and photoluminescence measurements. Our most recent work on CZT detectors was directed towards detailing various crystal defects, studying the internal electrical field, and delineating the effects of thermal annealing on improving the material properties. In …
Date:
October 23, 2011
Creator:
Bolotnikov, A.; Camarda, G.; Hossain, A.; Kim, K. H.; Yang, G.; Gul, R. et al.
Object Type:
Article
System:
The UNT Digital Library
Jackson County Herald-Tribune (Edna, Tex.), Vol. 106, No. 48, Ed. 1 Wednesday, October 23, 2013
Weekly newspaper from Edna, Texas that includes local, state, and national news along with advertising.
Date:
October 23, 2013
Creator:
Lundstrom, Chris
Object Type:
Newspaper
System:
The Portal to Texas History
The Ennis Daily News (Ennis, Tex.), Ed. 1 Tuesday, October 23, 2012
Daily newspaper from Ennis, Texas that includes local, state and national news along with advertising.
Date:
October 23, 2012
Creator:
Todaro, Nick
Object Type:
Newspaper
System:
The Portal to Texas History
The Ennis Daily News (Ennis, Tex.), Ed. 1 Wednesday, October 23, 2013
Daily newspaper from Ennis, Texas that includes local, state and national news along with advertising.
Date:
October 23, 2013
Creator:
Todaro, Nick
Object Type:
Newspaper
System:
The Portal to Texas History
Seminole Sentinel (Seminole, Tex.), Vol. 105, No. 7, Ed. 1 Wednesday, October 23, 2013
Semiweekly newspaper from Seminole, Texas that includes local, state, and national news along with advertising.
Date:
October 23, 2013
Creator:
Wright, Dustin
Object Type:
Newspaper
System:
The Portal to Texas History
Novel Molten Salts Thermal Energy Storage for Concentrating Solar Power Generation
The explicit UA program objective is to develop low melting point (LMP) molten salt thermal energy storage media with high thermal energy storage density for sensible heat storage systems. The novel Low Melting Point (LMP) molten salts are targeted to have the following characteristics: 1. Lower melting point (MP) compared to current salts (<222ºC) 2. Higher energy density compared to current salts (>300 MJ/m3) 3. Lower power generation cost compared to current salt In terms of lower power costs, the program target the DOE's Solar Energy Technologies Program year 2020 goal to create systems that have the potential to reduce the cost of Thermal Energy Storage (TES) to less than $15/kWh-th and achieve round trip efficiencies greater than 93%. The project has completed the experimental investigations to determine the thermo-physical, long term thermal stability properties of the LMP molten salts and also corrosion studies of stainless steel in the candidate LMP molten salts. Heat transfer and fluid dynamics modeling have been conducted to identify heat transfer geometry and relative costs for TES systems that would utilize the primary LMP molten salt candidates. The project also proposes heat transfer geometry with relevant modifications to suit the usage of our molten salts …
Date:
October 23, 2013
Creator:
Reddy, Ramana G.
Object Type:
Report
System:
The UNT Digital Library
Final Report to B&W Y-12 for MPO4300089700, Rev. 1
None
Date:
October 23, 2013
Creator:
Mok, G C
Object Type:
Report
System:
The UNT Digital Library
Program Notes
None
Date:
October 23, 2013
Creator:
Xu, H
Object Type:
Report
System:
The UNT Digital Library
The Winkler County News (Kermit, Tex.), Vol. 79, No. 41, Ed. 1 Thursday, October 23, 2014
Weekly newspaper from Kermit, Texas that includes local, state and national news along with advertising.
Date:
October 23, 2014
Creator:
Parks, Phil
Object Type:
Newspaper
System:
The Portal to Texas History
Ensemble: 2013-10-23 – Trombone Choirs
Access:
Use of this item is restricted to the UNT Community
Trombone choir concert performed at the UNT College of Music Voertman Hall.
Date:
October 23, 2013
Creator:
University of North Texas. Lucas Borges Trombone Choir.
Object Type:
Sound
System:
The UNT Digital Library
The Panola Watchman (Carthage, Tex.), Vol. 141, No. 85, Ed. 1 Wednesday, October 23, 2013
Semi-weekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date:
October 23, 2013
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Examiner (Navasota, Tex.), Vol. 119, No. 12, Ed. 1 Wednesday, October 23, 2013
Weekly newspaper from Navasota, Texas that includes local, state, and national news along with advertising.
Date:
October 23, 2013
Creator:
McDonald, Scott
Object Type:
Newspaper
System:
The Portal to Texas History
Evaluating player task engagement and arousal using electroencephalography
This paper from the 6th International Conference on Applied Human Factors and Ergonomics and the Affiliated Conference, AHFE 2015 conference proceedings coordinate task engagement data with arousal-valence data for application to expressive transformations to video game play in real time by tuning different performance parameters in an Engagement-Arousal rule system.
Date:
October 23, 2015
Creator:
McMahan, Timothy; Parberry, Ian & Parsons, Thomas D.
Object Type:
Article
System:
The UNT Digital Library
Polk County Enterprise (Livingston, Tex.), Vol. 132, No. 85, Ed. 1 Thursday, October 23, 2014
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
October 23, 2014
Creator:
Peak, Greg
Object Type:
Newspaper
System:
The Portal to Texas History
Rains County Leader (Emory, Tex.), Vol. 126, No. 20, Ed. 1 Tuesday, October 23, 2012
Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date:
October 23, 2012
Creator:
Hill, Earl Clyde, Jr.
Object Type:
Newspaper
System:
The Portal to Texas History
Senior Recital: 2014-10-23 - Samuel Han, guitar and Troy Chun, bass
Access:
Use of this item is restricted to the UNT Community
A senior recital presented at the UNT College of Music Kenton Hall.
Date:
October 23, 2014
Creator:
Han, Samuel & Chun, Troy
Object Type:
Sound
System:
The UNT Digital Library
Doctoral Recital: 2014-10-23 - Chenyi Cao, piano
Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
October 23, 2014
Creator:
Cao, Chenyi
Object Type:
Sound
System:
The UNT Digital Library
Ensemble: 2014-10-23 – Symphonic Band
Access:
Use of this item is restricted to the UNT Community
Band concert performed at the UNT College of Music Winspear Hall.
Date:
October 23, 2014
Creator:
University of North Texas. Symphonic Band.
Object Type:
Sound
System:
The UNT Digital Library
Regulatory Impact Analysis for the Clean Power Plan Final Rule
This is a Regulatory Impact Analysis (RIA) as it relates to greenhouse gases and climate change.
Date:
October 23, 2015
Creator:
United States. Environmental Protection Agency. Office of Air and Radiation. Office of Air Quality Planning and Standards.
Object Type:
Report
System:
The UNT Digital Library
Environmental Protection Agency Carbon Pollution Emission Guidelines for Existing Stationary Sources: Electric Utility Generating Units, Book 2
EPA report establishes the final ruling on state guidelines for reduction of greenhouse gas emissions (specifically CO2) from existing electric generating units powered by fossil fuels. Interim emission goals are established for each state in years 2022-2029, and final goals start with years 2030-2031.
Date:
October 23, 2015
Creator:
United States. Environmental Protection Agency.
Object Type:
Report
System:
The UNT Digital Library
Electra Star-News (Electra, Tex.), Vol. 108, No. 8, Ed. 1 Thursday, October 23, 2014
Weekly newspaper from Electra, Texas that includes local, state, and national news along with advertising.
Date:
October 23, 2014
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Sweetwater Reporter (Sweetwater, Tex.), Vol. 114, No. 239, Ed. 1 Tuesday, October 23, 2012
Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date:
October 23, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Burleson Area Star (Burleson, Tex.), Vol. 48, No. 104, Ed. 1 Wednesday, October 23, 2013
Semi-weekly newspaper from Burleson, Texas that includes local, state, and national news along with advertising.
Date:
October 23, 2013
Creator:
Porter, Brian
Object Type:
Newspaper
System:
The Portal to Texas History
Crosby County News (Ralls, Tex.), Vol. 128, No. 41, Ed. 1 Friday, October 23, 2015
Weekly newspaper from Ralls, Texas that includes local, state, and national news along with advertising.
Date:
October 23, 2015
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History