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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 interchangeable, well-defined, contraband shielding structures (i.e., "calibration" pallets) providing realistic detection data for induced radiation signatures from smuggled nuclear material, and provides various shielded nuclear material detection results. Using a 4.8-kg quantity of depleted uranium, neutron and gamma-ray detection responses are presented for well-defined shielded and unshielded configurations evaluated in a selected cargo container inspection configuration. © 2001 Elsevier Science. All rights reserved
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

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 inspection ystem, such as: (1) the identification of an optimal range of electron beam energies for interrogation applications, (2) the development of a new “cabinet safe” electron accelerator (i.e., Varitron II) to assess “cabinet safe-type” operations, (3) the numerical and experimental validation responses of nuclear materials placed within selected cargo configurations, 4) the fabrication and utilization of Calibration Pallets for inspection technology performance verification, 5) the initial technology integration of basic radiographic “imaging/mapping” with induced neutron and gamma-ray detection, 6) the characterization of electron beam-generated photon sources for optimal performance, 7) the development of experimentallydetermined Receiver-Operator-Characterization curves, and 8) several other system component assessments. This project is supported by the Department of Homeland Security and is a technology component of the Science & Technology Active Interrogation Portfolio entitled “Photofission-based Nuclear Material Detection and Characterization.”
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.
Partner: UNT Libraries Government Documents Department

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 report include an overview of the prototype inspection system, selected Receiver-Operator-Characteristic curves for system detection performance characterization, a description of the approach used to integrate the three major detection components of the PPA inspection system, highlights of the gray-scale density mapping technique being used for significant shield material detection, and higher electron beam energy detection results to support an evaluation for an optimal interrogating beam energy. This project is supported by the Department of Homeland Security Office of Research and Development and, more recently, the Domestic Nuclear Detection Office.
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.
Partner: UNT Libraries Government Documents Department