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The Role of Telomere Dysfunction in Driving Genomic Instability

Description: The mechanistic role of radiation-induced genomic instability in radiation carcinogenesis is an attractive hypothesis that remains to be rigorously tested. There are few in vivo studies on which to base judgments, but work in our laboratory with mouse models of radiogenic mammary neoplasia provided the first indications that certain forms of genetically predisposed radiation-induced genomic instability may contribute to tumor development. The central goal of this research project is to more fir… more
Date: January 17, 2008
Creator: Ullrich, Robert L & Bailey, Susan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hanford External Dosimetry Technical Basis Manual PNL-MA-842

Description: The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at Hanford. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the do… more
Date: February 25, 2005
Creator: Rathbone, Bruce A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Final Report: Radiation-magnetohydrodynamic evolution and instability of conductors driven by megagauss magnetic fields

Description: We are pleased to report important progress in experimentally characterizing and numerically modeling the transformation into plasma of walls subjected to pulsed megagauss magnetic fields. Understanding this is important to Magnetized Target Fusion (MTF) because an important limitation to the metal liner approach to MTF comes from the strong eddy current heating on the surface of the metal liner. This has intriguing non-linear aspects when the magnetic field is in the megagauss regime as needed… more
Date: October 22, 2008
Creator: Bauer, Bruno, S. & Siemon, Richard, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High Exposure Facility Technical Description

Description: The High Exposure Facility is a collimated high-level gamma irradiator that is located in the basement of the 318 building. It was custom developed by PNNL back in 1982 to meet the needs for high range radiological instrument calibrations and dosimeter irradiations. At the time no commercially available product existed that could create exposure rates up to 20,000 R/h. This document is intended to pass on the design criteria that was employed to create this unique facility, while maintaining co… more
Date: February 12, 2008
Creator: Carter, Gregory L.; Stithem, Arthur R.; Murphy, Mark K. & Smith, Alex K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Japanese Nuclear Incident: Technical Aspects

Description: This report presents scientific and technical aspects of human health issues related to the damage to the Fukushima Daiichi Nuclear Power Plant (NPP) caused by the Japanese earthquake and tsunami of March 2011. It includes an appendix of useful links.
Date: April 5, 2011
Creator: Medalia, Jonathan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Application of Improved Radiation Modeling to General Circulation Models

Description: This research has accomplished its primary objectives of developing accurate and efficient radiation codes, validating them with measurements and higher resolution models, and providing these advancements to the global modeling community to enhance the treatment of cloud and radiative processes in weather and climate prediction models. A critical component of this research has been the development of the longwave and shortwave broadband radiative transfer code for general circulation model (GCM… more
Date: April 7, 2011
Creator: Iacono, Michael J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Performance Testing using Silicon Devices - Analysis of Accuracy: Preprint

Description: Accurately determining PV module performance in the field requires accurate measurements of solar irradiance reaching the PV panel (i.e., Plane-of-Array - POA Irradiance) with known measurement uncertainty. Pyranometers are commonly based on thermopile or silicon photodiode detectors. Silicon detectors, including PV reference cells, are an attractive choice for reasons that include faster time response (10 us) than thermopile detectors (1 s to 5 s), lower cost and maintenance. The main drawback… more
Date: June 1, 2012
Creator: Sengupta, M.; Gotseff, P.; Myers, D. & Stoffel, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Comparison of Different Internal Dosimetry Systems for Selected Radionuclides Important to Nuclear Power Production

Description: This report compares three different radiation dosimetry systems currently applied by various U.S. Federal agencies and dose estimates based on these three dosimetry systems for a set of radionuclides often identified in power reactor effluents. These dosimetry systems were developed and applied by the International Commission on Radiological Protection at different times over the past six decades. Two primary modes of intake of radionuclides are addressed: ingestion in drinking water and inhal… more
Date: August 1, 2013
Creator: Leggett, Richard Wayne; Eckerman, Keith F & Manger, Ryan P
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of GCM Column Radiation Models Under Cloudy Conditions with The Arm BBHRP Value Added Product

Description: The overarching goal of the project was to improve the transfer of solar and thermal radiation in the most sophisticated computer tools that are currently available for climate studies, namely Global Climate Models (GCMs). This transfer can be conceptually separated into propagation of radiation under cloudy and under cloudless conditions. For cloudless conditions, the factors that affect radiation propagation are gaseous absorption and scattering, aerosol particle absorption and scattering and… more
Date: March 14, 2010
Creator: Oreopoulos, Lazaros & Norris, Peter M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hanford External Dosimetry Technical Basis Manual PNL-MA-842

Description: The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at the U.S. Department of Energy (DOE) Hanford site. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual… more
Date: April 4, 2011
Creator: Rathbone, Bruce A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hanford External Dosimetry Technical Basis Manual PNL-MA-842

Description: The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at Hanford. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the do… more
Date: January 1, 2010
Creator: Rathbone, Bruce A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of High Proton Fluences on CZT Detectors

Description: The effects of high fluences of energetic charged particles on CdZnTecrystals and detectors including reactions within space and nuclear nonproliferation.
Date: May 4, 2009
Creator: Simos, N.; Ludewig, H.; Bolotnikov, A.; James, R.; Camarda, G.; Copeland, C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Radiation leukaemogenesis at low doses DE-FG02-05 ER 63947 Final Technical Report 15 May 2005 – 14 May 2010

Description: This report provides a complete summary of the work undertaken and results obtained under US Department of Energy grant DF-FG02-05 ER 63947, Radiation leukaemogenesis at low doses. There is ample epidemiological evidence indicating that ionizing radiation is carcinogenic in the higher dose range. This evidence, however, weakens and carries increasing uncertainties at doses below 100-200 mSv. At these low dose levels the form of the dose-response curve for radiation-induced cancer cannot be dete… more
Date: July 28, 2010
Creator: Bouffler, Simon
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Charge transport properties of CdMnTe radiation detectors

Description: Growth, fabrication and characterization of indium-doped cadmium manganese telluride (CdMnTe)radiation detectors have been described. Alpha-particle spectroscopy measurements and time resolved current transient measurements have yielded an average charge collection efficiency approaching 100 %. Spatially resolved charge collection efficiency maps have been produced for a range of detector bias voltages. Inhomogeneities in the charge transport of the CdMnTe crystals have been associated with cha… more
Date: April 11, 2012
Creator: Kim, K.; Rafiel, R.; Boardman, M.; Reinhard, I.; Sarbutt, A.; Watt, G. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

REAL-TIME IN-SITU MEASUREMENT OF MATERIAL ELASTIC PROPERTIES IN A HIGH GAMMA IRRADIATION ENVIRONMENT

Description: The first measurements of elastic vibrations of an object in-situ to a high gamma irradiation field using a laser coupled resonant ultrasound method are described. A vibration mode of an Inconel hollow capped cylinder was measured throughout a period of 170 hours as the gamma radiation field was increased to 104 Gray/hour. The vibration mode frequency was observed to change in a manner consistent with the temperature dependence of the elastic stiffness coefficients of the material. These result… more
Date: May 1, 2006
Creator: Telschow, Ken; Schley, Rob & Cottle, Dave
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Literature Review of the Effects of Radiation and Temperature on the Aging of Concrete

Description: The open literature and accessible United States Department of Energy-sponsored reports were reviewed for the effects of radiation and temperature on concrete. No effects of radiation were found for exposures less than 1010 neutron/cm2 or 1010 Gy gamma for periods less than 50 years. Reductions in compressive and tensile strength and a marked increase in volume are reported for exposures greater than 1020 neutron/cm2 or 1010 rads of gamma. There are conflicting reports of damage for doses in th… more
Date: September 1, 2004
Creator: Fillmore, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design and Expected Performance of the AGR-1 Fission Product Monitoring System (FPMS)

Description: The effluent from each test capsule of the AGR-1 experiment will be monitored by a detector system consisting of a gamma-ray spectrometer and a gross radiation detector. This collection of radiation measurement systems will be known as the AGR-1 Fission Product Monitoring System (FPMS). Proper design and functioning of the FPMS is critical to the success of the AGR-1 fuel test experiment.This document describes the AGR-1 FPMS and presents calculations indicating that this design will meet the p… more
Date: September 1, 2005
Creator: Hartwell, John K. (Jack) & Scates, Dawn M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Role of Heterozygosity in Drosophila Populations

Description: "An analysis was made of the viability effects of radiation-induced mutations in heterozygous condition in populations of Drosophila. The results of seven large experiments involving the examination of more than 9000 cultures and the counting of more than three and a quarter million flies are summarized in tabular form. Limitations of the experimental procedures and results of the experiments are discussed."
Date: unknown
Creator: Wallace, Bruce
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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