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Wireless Handheld Scanners Integrated with Waste Tracking

Description: The US Department of Energy (DOE) Idaho National Engineering and Environmental Laboratory (INEEL) has embraced mobile wireless technology to help the disposition of hazardous and mixed radiological waste. The following paper describes one application the INEEL developed to increase the data accuracy and near-real time reporting requirements for waste management. With the continuous operational demands at the "site", it was difficult to sustain an accurate, up-to-date database required for regul… more
Date: July 1, 2000
Creator: Anderson, Robert Stephen
Partner: UNT Libraries Government Documents Department
open access

Comparison Between Digital and Analog Pulse Shape Discrimination Techniques For Neutron and Gamma Ray Separation

Description: Recent advancement in digital signal processing (DSP) using fast processors and computer makes it possible to be used in pulse shape discrimination applications. In this study, we have investigated the feasibility of using a DSP to distinguish between the neutrons and gamma rays by the shape of their pulses in a liquid scintillator detector (BC501), and have investigated pulse shape-based techniques to improve the resolution performance of room-temperature cadmium zinc telluride (CZT) detectors… more
Date: November 1, 2005
Creator: Aryaeinejad, R. & Hartwell, John K.
Partner: UNT Libraries Government Documents Department
open access

Network-Oriented Radiation Monitoring System (NORMS)

Description: We have developed a multi-functional pocket radiation monitoring system capable of detecting and storing gamma ray and neutron data and then sending the data through a wireless connection to a remote central facility upon request. The device has programmable alarm trigger levels that can be modified for specific applications. The device could be used as a stand-alone device or in conjunction with an array to cover a small or large area. The data is stored with a date/time stamp. The device may … more
Date: October 1, 2007
Creator: Aryaeinejad, Rahmat & Spencer, David F.
Partner: UNT Libraries Government Documents Department
open access

Nuclear Data Measurements for 21st Century Reactor Physics Applications

Description: The United States Department of Energy (DOE), Office of Nuclear Energy (NE) has embarked on a long-term program to significantly advance the science and technology of nuclear energy. This is in response to the overall national plan for accelerated development of domestic energy resources on several fronts, punctuated by recent dramatic events that have emphasized the need for the US to reduce its dependence on foreign petroleum supplies. Key aspects of the DOE-NE agenda are embodied in the Gene… more
Date: March 1, 2003
Creator: Aryaeinejad, Rahmat; Cole, Jerald D.; Drigert, Mark W.; Jewell, James K.; McGrath, Christopher A.; Nigg, David W. et al.
Partner: UNT Libraries Government Documents Department
open access

High-Resolution Compton-Suppressed CZT Detector for Fission Products Identification

Description: Room temperature semiconductor CdZnTe (CZT) detectors are currently limited to total detector volumes of 1-2 cm3, which is dictated by the poor charge transport characteristics. Because of this size limitation one of the problems in accurately determining isotope identification is the enormous background from the Compton scattering events. Eliminating this background will not only increase the sensitivity and accuracy of measurements but also help us to resolve peaks buried under the background… more
Date: October 1, 2004
Creator: Aryaeinejd, R.; Hartwell, J. K. & Scates, Wade W.
Partner: UNT Libraries Government Documents Department
open access

Remote Laser Diffraction PSD Analyzer

Description: Particle size distribution (PSD) analysis of radioactive slurry samples were obtained using a modified "off-the-shelf" classical laser light scattering particle size analyzer. A Horiba Instruments Inc. Model La-300 PSD analyzer, which has a 0.1 to 600 micron measurement range, was modified for remote application in a "hot cell" (gamma radiation) environment. The general details of the modifications to this analyzer are presented in this paper. This technology provides rapid and simple PSD analy… more
Date: June 1, 2000
Creator: Batcheller, Thomas Aquinas; Huestis, Gary Michael & Bolton, Steven Michael
Partner: UNT Libraries Government Documents Department
open access

Silo 3 Vacuum Wand Demonstration Test Final Report

Description: Silo 3, a freestanding, pre-stressed concrete, domed cylindrical tank, located at the Fernald Closure Project near Cincinnati, Ohio, contains approximately 5,100 cubic yards of metal oxide waste generated from Fernald operations that extracted uranium from ore material. The baseline for the Silo 3 Project is to remove a portion of this material from the silo pneumatically by inserting vacuum retrieval wands and/or hoses in existing manways on the silo dome. After the loose material has been rem… more
Date: June 1, 2003
Creator: Birrer, Steve
Partner: UNT Libraries Government Documents Department
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Fast digitization and discrimination of prompt neutron and photon signals using a novel silicon carbide detector

Description: Current requirements of some Homeland Security active interrogation projects for the detection of Special Nuclear Material (SNM) necessitate the development of faster inspection and acquisition capabilities. In order to do so, fast detectors which can operate during and shortly after intense interrogation radiation flashes are being developed. Novel silicon carbide (SiC) semiconductor Schottky diodes have been utilized as robust neutron and photon detectors in both pulsed photon and pulsed neut… more
Date: April 1, 2007
Creator: Blackburn, Brandon W.; Johnson, James T.; Watson, Scott M.; Chichester, David L.; Jones, James L.; Ruddy, Frank H. et al.
Partner: UNT Libraries Government Documents Department
open access

Photon dosimetry using plastic scintillators in pulsed radiation fields

Description: Simulations and experiments have been carried out to explore using a plastic scintillator as a dosimetry probe in the vicinity of a pulsed bremsstrahlung source in the range 4 to 20 MeV. Taking advantage of the tissue-equivalent properties of this detector in conjunction with the use of a fast digital signal processor near real-time dosimetry was shown to be possible. The importance of accounting for a broad energy electron beam in bremsstrahlung production, and photon scattering and build-up, … more
Date: April 1, 2007
Creator: Chichester, David L.; Blackburn, Brandon W.; Johnson, James T. & Watson, Scott W.
Partner: UNT Libraries Government Documents Department
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Geothermal Technologies Program Geoscience and Supporting Technologies 2001 University Research Summaries

Description: The U.S. Department of Energy Office of Wind and Geothermal Technologies (DOE) is funding advanced geothermal research through University Geothermal Research solicitations. These solicitations are intended to generate research proposals in the areas of fracture permeability location and characterization, reservoir management and geochemistry. The work funded through these solicitations should stimulate the development of new geothermal electrical generating capacity through increasing scientifi… more
Date: June 1, 2002
Creator: Creed, Robert John & Laney, Patrick Thomas
Partner: UNT Libraries Government Documents Department
open access

INITIAL RESULTS FROM INVESTIGATIONS TO ENHANCE THE PERFORMANCE OF HIGH TEMPERATURE IRRADIATION-RESISTANT THERMOCOUPLES

Description: New fuel, cladding, and structural materials offer the potential for safer and more economic energy from existing reactor and advanced nuclear reactor designs. However, insufficient data are available to characterize these materials in high temperature, radiation conditions. To evaluate candidate material performance, robust instrumentation is needed that can survive these conditions. However, traditional thermocouples either drift due to degradation at high temperatures (above 1100 °C) or due … more
Date: April 1, 2007
Creator: Crepeau, John; Rempe, Joy; Wilkins, S. Curtis; Knudson, Darrell L.; Condie, Keith G. & Daw, Joshua
Partner: UNT Libraries Government Documents Department
open access

Performance comparison of four compact room-temperature detectors – two cadmium zinc telluride (CZT) semiconductor detectors, a LaCl3(Ce) scintillator, and an NaI(Tl) scintillator

Description: The performance characteristics of four compact, room-temperature detectors – two scintillators and two semiconductor detectors – have been studied. All are commercially-available detectors. The two scintillators were a Æ13mmX13mm lanthanum chloride [LaCl3(Ce)] detector and a Æ25mmX25mm sodium iodide [NaI(Tl)] detector. The two semiconductor detectors were a 10X10X3 mm3 cadmium zinc telluride (CZT) detector with a coplanar gridded anode and a 5X5X5 mm3 CZT detector with an extended cathode. The… more
Date: October 1, 2004
Creator: Hartwell, J. K.
Partner: UNT Libraries Government Documents Department
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Design and testing of a unique active Compton-suppressed LaBr3(Ce) detector system for improved sensitivity assays of TRU in remote-handled TRU wastes

Description: The US Department of Energy’s transuranic (TRU) waste inventory includes about 4,500 m3 of remote-handled TRU (RH-TRU) wastes composed of a variety of containerized waste forms having a contact surface dose rate that exceeds 2 mSv/hr (200 mrem/hr) containing waste materials with a total TRU concentration greater than 3700 Bq/g (100 nCi/g). As part of a research project to investigate the use of active Compton-suppressed room-temperature gamma-ray detectors for direct non-destructive quantificat… more
Date: October 1, 2007
Creator: Hartwell, J. K.; McIlwain, M. E. & Kulisek, J. A.
Partner: UNT Libraries Government Documents Department
open access

DESIGN OF AN ON-LINE, MULTI-SPECTROMETER FISSION PRODUCT MONITORING SYSTEM (FPMS) TO SUPPORT ADVANCED GAS REACTOR (AGR) FUEL TESTING AND QUALIFICATION IN THE ADVANCED TEST REACTOR

Description: The US Department of Energy (DOE) is embarking on a series of tests of coated-particle reactor fuel for the Advanced Gas Reactor (AGR). As one part of this fuel development program a series of eight (8) fuel irradiation tests are planned for the Idaho National Laboratory’s (INL’s) Advanced Test Reactor (ATR). The first test in this series (AGR-1) will incorporate six separate “capsules” irradiated simultaneously, each containing about 51,000 TRISO-coated fuel particles supported in a graphite m… more
Date: November 1, 2005
Creator: Hartwell, J. K.; Scates, D. M. & Drigert, M. W.
Partner: UNT Libraries Government Documents Department
open access

Installation and Final Testing of an On-Line, Multi-Spectrometer Fission Product Monitoring System (FPMS) to Support Advanced Gas Reactor (AGR) Fuel Testing and Qualification in the Advanced Test Reactor

Description: The US Department of Energy (DOE) is initiating tests of reactor fuel for use in an Advanced Gas Reactor (AGR). The AGR will use helium coolant, a low-power-density ceramic core, and coated-particle fuel. A series of eight (8) fuel irradiation tests are planned for the Idaho National Laboratory’s (INL’s) Advanced Test Reactor (ATR). One important measure of fuel performance in these tests is quantification of the fission gas releases over the nominal 2-year duration of each irradiation experime… more
Date: October 1, 2006
Creator: Hartwell, J. K.; Scates, D. M.; Drigert, M. W. & Walter, J. B.
Partner: UNT Libraries Government Documents Department
open access

DETERMINATION OF THE AGR-1 CAPSULE TO FPMS SPECTROMETER TRANSPORT VOLUMES FROM LEADOUT FLOW TEST DATA

Description: The AGR-1 experiment is a fueled multiple-capsule irradiation experiment being conducted in the Advanced Test Reactor (ATR) in support of the Advanced Gas Reactor (AGR) Fuel Development and Qualification Program. A flow experiment conducted during the AGR-1 irradiation provided data that included the effect of flow rate changes on the decay of a short-lived radionuclide (23Ne). This data has been analyzed to determine the capsule-specific downstream transport volume through which the capsule ef… more
Date: May 1, 2007
Creator: Hartwell, J. K.; Walter, J. B.; Scates, D. M. & Drigert, M. W.
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.
Partner: UNT Libraries Government Documents Department
open access

Gamma-ray Sptectrometric Characterization of Overpacked CC 104/107 RH-TRU Wastes: Surrogate Tests

Description: Development of the gamma-ray spectrometric technique termed GSAK (Gamma-Ray Spectrometry with Acceptable Knowledge) for the characterization of CC104/107 remote-handled transuranic (RH-TRU) wastes continued this year. Proof-of-principle measurements have been completed on the surrogate RH-TRU waste drums configured earlier this year. The GSAK technique uses conventional gamma-ray spectrometry to quantify the detectable fission product content of overpacked RH-TRU drums. These results are then c… more
Date: April 1, 2000
Creator: Hartwell, John Kelvin; Mc Ilwain, Michael Edward & Klann, R. T.
Partner: UNT Libraries Government Documents Department
open access

Two CdZnTe Detector-Equipped Gamma-ray Spectrometers for Attribute Measurements on Irradiated Nuclear Fuel

Description: Some United States Department of Energy-owned spent fuel elements from foreign research reactors (FRRs) are presently being shipped from the reactor location to the US for storage at the Idaho National Engineering and Environmental Laboratory (INEEL). Two cadmium zinc telluride detector-based gamma-ray spectrometers have been developed to confirm the irradiation status of these fuels. One spectrometer is configured to operate underwater in the spent fuel pool of the shipping location, while the… more
Date: April 1, 2003
Creator: Hartwell, John Kelvin; Winston, Philip Lon; Marts, Donna Jeanne; Moore-McAteer, Lisa Dawn & Taylor, Steven Cheney
Partner: UNT Libraries Government Documents Department
open access

Simultaneous Microscopic Imaging of Elastic and Thermal Anisotropy

Description: Simultaneous imaging of elastic and thermal properties of anisotropic materials with micron (lateral) and nanometer (depth) resolution is presented. This approach employs an ultrafast laser for the generation and detection of thermal and acoustic waves. Demonstrations involving the visualization of thermal waves and surface acoustic waves are presented for single crystal quartz and fused silica substrates supper coated with chromium films. These images dramatically reveal and contrast the symme… more
Date: May 1, 2006
Creator: Hurley, David H. & Telschow, Ken
Partner: UNT Libraries Government Documents Department
open access

Post-Irradiation-Examination of Irradiated Fuel Outside the Hot Cell

Description: Because of their high radioactivity, irradiated fuels are commonly examined in a hot cell. However, the Idaho National Laboratory (INL) has recently investigated irradiated U-Mo-Al metallic fuel from the Reduced Enrichment for Research and Test Reactors (RERTR) project using a conventional unshielded scanning electron microscope outside a hot cell. This examination was possible because of a two-step sample-preparation approach in which a small volume of fuel was isolated in a hot cell and shiel… more
Date: September 1, 2007
Creator: Janney, Dawn E.; Robinson, Adam B.; O'Holleran, Thomas P.; Lind, R. Paul; Babcock, Marc; Brower, Laurence C. et al.
Partner: UNT Libraries Government Documents Department
open access

Detection of Shielded Nuclear Material in a Cargo Container

Description: The Idaho National Laboratory, along with Los Alamos National Laboratory and the Idaho State University’s Idaho Accelerator Center, are developing electron accelerator-based, photonuclear inspection technologies for the detection of shielded nuclear material within air-, rail-, and especially, maritime-cargo transportation containers. This paper describes a developing prototypical cargo container inspection system utilizing the Pulsed Photonuclear Assessment (PPA) technology, incorporates inter… more
Date: June 1, 2005
Creator: Jones, J. L.; Norman, D. R.; Haskell, K. J.; Sterbentz, J. W.; Yoon, W. Y.; Watson, S. M. et al.
Partner: UNT Libraries Government Documents Department
open access

Photofission-Based, Nuclear Material Detection: Technology Demonstration

Description: The Idaho National Engineering and Environmental Laboratory (INEEL), the Los Alamos National Laboratory (LANL), and the Advanced Research and Applications Corporation (ARACOR) [Sunnyvale, California] performed a photonuclear technology demonstration for shielded nuclear material detection during August 21–22, 2002, at the LANL TA-18 facility. The demonstration used the Pulsed Photonuclear Assessment Technique (PPAT) that focused on the application of a photofission-based, nuclear material detec… more
Date: December 1, 2002
Creator: Jones, James Litton; Yoon, Woo Yong; Haskell, Kevin James; Norman, Daren Reeve; Moss, C. E.; Goulding, C. A. et al.
Partner: UNT Libraries Government Documents Department
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Fuel Handling Exclusion Zone Established to Prevent Spurious Alarms to CAS Neutron Detectors in the IFSF

Description: An experimental and calculational study has been performed to understand and prevent inadvertent activation of the criticality alarm system (CAS) from fuel-handling operations at the Irradiated Fuel Storage Facility. In conjunction with the study, the CAS neutron detectors were tested to verify the design specifications for gamma rejection capability and zero response limit. A minimum physical restrictive boundary around the CAS location was established based on a gamma ray dose rate limit of 1… more
Date: September 1, 2000
Creator: Kim, Soon Sam & Sterbentz, James William
Partner: UNT Libraries Government Documents Department
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