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Fast-Neutron Spectrometry Using a 3He Ionization Chamber and Digital Pulse Shape Analysis

Description: Digital pulse shape analysis (dPSA) has been used with a Cuttler-Shalev type 3He proportional counter to measure the fast neutron spectra of bare 252Cf and 241AmBe neutron sources. Measurements have also been made to determine the attenuated fast neutron spectra of 252Cf shielded by several materials including water, graphite, liquid nitrogen, magnesium, and tungsten. Rise-time dPSA has been employed using the common rise-time approach for analyzing n +3He ? 1H + 3H ionization events and a new … more
Date: May 1, 2010
Creator: Chichester, D. L.; Johnson, J. T. & Seabury, E. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Measurement of the Neutron Spectrum of a DD Electronic Neutron Generator

Description: A Cuttler-Shalev (C-S) 3He proportional counter has been used to measure the energy spectrum of neutrons from a portable deuterium-deuterium electronic neutron generator. To improve the analysis of results from the C-S detector digital pulse shape analysis techniques have been used to eliminate neutron recoil artifacts in the recorded data. Data was collected using a 8-GHz, 10-bit waveform digitizer with its full scale corresponding to approximately 6-MeV neutrons. The measurements were made wi… more
Date: August 1, 2010
Creator: Chichester, D. L.; Johnson, J. T. & Seabury, E. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Neutron Emission Characteristics of Two Mixed-Oxide Fuels: Simulations and Initial Experiments

Description: Simulations and experiments have been carried out to investigate the neutron emission characteristics of two mixed-oxide (MOX) fuels at Idaho National Laboratory (INL). These activities are part of a project studying advanced instrumentation techniques in support of the U.S. Department of Energy's Fuel Cycle Research and Development program and it's Materials Protection, Accounting, and Control for Transmutation (MPACT) campaign. This analysis used the MCNP-PoliMi Monte Carlo simulation tool to… more
Date: July 1, 2009
Creator: Chichester, D. L.; Pozzi, S. A.; Dolan, J. L.; Flaska, M.; Johnson, J. T.; Seabury, E. H. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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FY09 Advanced Instrumentation and Active Interrogation Research for Safeguards

Description: Multiple small-scale projects have been undertaken to investigate advanced instrumentation solutions for safeguard measurement challenges associated with advanced fuel cycle facilities and next-generation fuel reprocessing installations. These activities are in support of the U.S. Department of Energy's Fuel Cycle Research and Development program and its Materials Protection, Accounting, and Control for Transmutation (MPACT) campaign. 1) Work was performed in a collaboration with the University… more
Date: August 1, 2009
Creator: Chichester, D. L.; Pozzi, S. A.; Seabury, E. H.; Dolan, J. L.; Flaska, M.; Johnson, J. T. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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MPACT Fast Neutron Multiplicity System Prototype Development

Description: This document serves as both an FY2103 End-of-Year and End-of-Project report on efforts that resulted in the design of a prototype fast neutron multiplicity counter leveraged upon the findings of previous project efforts. The prototype design includes 32 liquid scintillator detectors with cubic volumes 7.62 cm in dimension configured into 4 stacked rings of 8 detectors. Detector signal collection for the system is handled with a pair of Struck Innovative Systeme 16-channel digitizers controlled… more
Date: September 1, 2013
Creator: Chichester, D. L.; Pozzi, S. A.; Dolan, J. L.; Kinlaw, M. T.; Thompson, S. J.; Kaplan, A. C. et al.
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Pulsed Photonuclear Assessment (PPA) Technique: CY 04 Year-end Progress Report

Description: Idaho National Laboratory (INL), along with Los Alamos National Laboratory (LANL) and Idaho State University’s Idaho Accelerator Center (IAC), are developing an electron accelerator-based, photonuclear inspection technology for the detection of smuggled nuclear material within air-, rail-, and especially, maritime-cargo transportation containers. This CY04 report describes the latest developments and progress with the development of the Pulsed, Photonuclear Assessment (PPA) nuclear material ins… more
Date: May 1, 2005
Creator: Jones, J. L.; Yoon, W. Y.; Haskell, K. J.; Norman, D. R.; Zabriskie, J. M.; Sterbentz, J. W. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pulsed Photonuclear Assessment (PPA) Technique: CY-05 Project Summary Report

Description: Idaho National Laboratory, along with Idaho State University’s Idaho Accelerator Center and Los Alamos National Laboratory, is developing an electron accelerator-based, photonuclear inspection technology, called the Pulsed Photonuclear Assessment (PPA) system, for the detection of nuclear material concealed within air-, rail-, and, primarily, maritime-cargo transportation containers. This report summarizes the advances and progress of the system’s development in 2005. The contents of this repor… more
Date: December 1, 2005
Creator: Jones, J. L.; Bennett, B. D.; Haskell, K. J.; Johnson, J. T.; Norman, D. R.; Sterbentz, J. W. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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