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in subjects: "Iaea"

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Nuclear proliferation and civilian nuclear power. Report of the Nonproliferation Alternative Systems Assessment Program. Volume II. Proliferation resistance

The purpose of this volume is limited to an assessment of the relative effects that particular choices of nuclear-power systems, for whatever reasons, may have on the possible spread of nuclear-weapons capabilities. This volume addresses the concern that non-nuclear-weapons states may be able to initiate efforts to acquire or to improve nuclear-weapons capabilities through civilian nuclear-power programs; it also addresses the concern that subnational groups may obtain and abuse the nuclear mat… more

Date: June 1, 1980

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Leach test methodology for the Waste/Rock Interactions Technology Program

Experimental leach studies in the WRIT Program have two primary functions. The first is to determine radionuclide release from waste forms in laboratory environments which attempt to simulate repository conditions. The second is to elucidate leach mechanisms which can ultimately be incorporated into nearfield transport models. The tests have been utilized to generate rates of removal of elements from various waste forms and to provide specimens for surface analysis. Correlation between constitu… more

Date: May 1, 1980

Creator: Bradley, D. J.; McVay, G. L. & Coles, D. G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

An overview of the IAEA Safety Series on procedures for evaluating the reliability of predictions made by environmental transfer models

The International Atomic Energy Agency is preparing a Safety Series publication on practical approaches for evaluating the reliability of the predictions made by environmental radiological assessment models. This publication identifies factors that affect the reliability of these predictions and discusses methods for quantifying uncertainty. Emphasis is placed on understanding the quantity of interest specified by the assessment question and distinguishing between stochastic variability and lac… more

Date: October 1, 1987

Creator: Hoffman, F. W. & Hofer, E.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Nuclear safeguards research and development. Program status report, October 1980-January 1981

This report presents the status of the Nuclear Safeguards Research and Development Program pursued by the Energy, Chemistry-Materials Science, and Operational Security/Safeguards Divisions of the Los Alamos National Laboratory. Topics include nondestructive assay technology development and applications, international safeguards systems. Also discussed are training courses, technology transfer, analytical chemistry methods for fissionable materials safeguards, the Department of Energy Computer S… more

Date: November 1, 1981

Creator: Henry, C.N. (comp.)

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Optimal allocation of International Atomic Energy Agency inspection resources

The Safeguards Department of the International Atomic Energy Agency (IAEA) conducts inspections to assure the peaceful use of a state's nuclear materials and facilities. Because of limited resources for conducting inspections, the careful disposition of inspection effort among these facilities is essential if the IAEA is to attain its safeguards goals. This report describes an optimization procedure for assigning an inspection effort to maximize attainment of IAEA goals. The procedure does not … more

Date: December 1, 1987

Creator: Markin, J.T.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Nuclear energy at the turning point

In deciding the future course of nuclear energy, it is necessary to re-examine man's long-term energy options, in particular solar energy and the breeder reactor. Both systems pose difficultiies: energy from the sun is likely to be expensive as well as limited, whereas a massive world-wide deployment of nuclear breeders will create problems of safety and of proliferation. Nuclear energy's long-term success depends on resolving both of these problems. Collocation of nuclear facilities with a sys… more

Date: July 1, 1977

Creator: Weinberg, A.M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Comparison between calorimeter and HLNC errors

This paper summarizes an error analysis that compares systematic and random errors of total plutonium mass estimated for high-level neutron coincidence counter (HLNC) and calorimeter measurements. This task was part of an International Atomic Energy Agency (IAEA) study on the comparison of the two instruments to determine if HLNC measurement errors met IAEA standards and if the calorimeter gave significantly'' better precision. Our analysis was based on propagation of error models that containe… more

Date: January 1, 1991

Creator: Goldman, A.S. (Los Alamos National Lab., NM (United States)); De Ridder, P. & Laszlo, G. (International Atomic Energy Agency, Vienna (Austria))

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Development of ITER 15 MA ELMy H-mode Inductive Scenario

The poloidal field (PF) coil system on ITER, which provides both feedforward and feedback control of plasma position, shape, and current, is a critical element for achieving mission performance. Analysis of PF capabilities has focused on the 15 MA Q = 10 scenario with a 300-500 s flattop burn phase. The operating space available for the 15 MA ELMy H-mode plasma discharges in ITER and upgrades to the PF coils or associated systems to establish confidence that ITER mission objectives can be reach… more

Date: October 16, 2008

Creator: Kessel, C. E.; Campbell, D.; Gribov, Y.; Saibene, G.; Ambrosino, G.; Casper, T. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

The US Support program to IAEA Safeguards - 2008

The U.S. Support Program to IAEA Safeguards (USSP) was established in 1977 to provide technical assistance to the IAEA Department of Safeguards. Since that time the U.S. Department of State has provided funding of over $200 million and over 900 tasks have been completed by USSP contractors on behalf of the KEA. The USSP is directed by a U.S. interagency subcommittee known as the Subgroup on Safeguards Technical Support (SSTS) and is managed by the International Safeguards Project Office (ISPO) … more

Date: June 9, 2008

Creator: Pepper,S.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Monitoring the Thermal Power of Nuclear Reactors with a Prototype Cubic Meter Antineutrino Detector

In this paper, we estimate how quickly and how precisely a reactor's operational status and thermal power can be monitored over hour to month time scales, using the antineutrino rate as measured by a cubic meter scale detector. Our results are obtained from a detector we have deployed and operated at 25 meter standoff from a reactor core. This prototype can detect a prompt reactor shutdown within five hours, and monitor relative thermal power to 3.5% within 7 days. Monitoring of short-term powe… more

Date: June 27, 2007

Creator: Bernstein, A; Bowden, N; Misner, A & Palmer, T

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Requirements for Reactor Physics Design

It has been recognized that there is a need for requirements and guidance for design and operation of nuclear power plants. This is becoming more important as more reactors are being proposed to be built. In parallel with activities in individual countries are norms established by international organizations. This paper discusses requirements/guidance for neutronic design and operation as promulgated by the U.S. Nuclear Regulatory Commission (NRC). As an example, details are given for one react… more

Date: April 11, 2008

Creator: Diamond, D. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Measurement of actinide neutron cross sections

The maintenance of strong scientific expertise is criticalto the U.S. nuclear attribution community. It is particularly importantto train students in actinide chemistry and physics. Neutroncross-section data are vital components to strategies for detectingexplosives and fissile materials, and these measurements requireexpertise in chemical separations, actinide target preparation, nuclearspectroscopy, and analytical chemistry. At the University of California,Berkeley and the Lawrence Berkeley N… more

Date: June 15, 2003

Creator: Firestone, Richard B.; Nitsche, Heino; Leung, Ka-Ngo; Perry, DaleL. & English, Gerald

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Summary report on transportation of nuclear fuel materials in Japan : transportation infrastructure, threats identified in open literature, and physical protection regulations.

This report summarizes the results of three detailed studies of the physical protection systems for the protection of nuclear materials transport in Japan, with an emphasis on the transportation of mixed oxide fuel materials1. The Japanese infrastructure for transporting nuclear fuel materials is addressed in the first section. The second section of this report presents a summary of baseline data from the open literature on the threats of sabotage and theft during the transport of nuclear fuel … more

Date: March 1, 2008

Creator: Cochran, John Russell; Ouchi, Yuichiro (Japan Atomic Energy Agency, Japan); Furaus, James Phillip & Marincel, Michelle K.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Thermal Neutron Capture Cross Sections of the PalladiumIsotopes

Precise gamma-ray thermal neutron capture cross sectionshave been measured at the Budapest Reactor for all elements withZ=1-83,92 except for He and Pm. These measurements and additional datafrom the literature been compiled to generate the Evaluated Gamma-rayActivation File (EGAF), which is disseminated by LBNL and the IAEA. Thesedata are nearly complete for most isotopes with Z<20 so the totalradiative thermal neutron capture cross sections can be determineddirectly from the decay scheme. For … more

Date: July 17, 2006

Creator: Firestone, R.B.; Krticka, M.; McNabb, D.P.; Sleaford, B.; Agvaanluvsan, U.; Belgya, T. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

CORBA-Based Distributed Software Framework for the NIF Integrated Computer Control System

The National Ignition Facility (NIF), currently under construction at the Lawrence Livermore National Laboratory, is a stadium-sized facility containing a 192-beam, 1.8 Megajoule, 500-Terawatt, ultra-violet laser system together with a 10-meter diameter target chamber with room for nearly 100 experimental diagnostics. The NIF is operated by the Integrated Computer Control System (ICCS) which is a scalable, framework-based control system distributed over 800 computers throughout the NIF. The fra… more

Date: November 20, 2007

Creator: Stout, E A; Carey, R W; Estes, C M; Fisher, J M; Lagin, L J; Mathisen, D G et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

The US Support Program to IAEA Safeguards Priority of Containment and Surveillance

The United States Support Program (USSP) priority for containment and surveillance (US) focuses on maintaining or improving the reliability and cost-effectiveness of C/S systems for IAEA safeguards, expanding the number of systems that are unattended and remotely monitored, and developing verification methods that help streamline the on-site inspection process. Existing IAEA C/S systems have evolved to become complex, integrated systems, which may include active seals, nondestructive assay (NDA… more

Date: June 13, 2008

Creator: Diaz,R.A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

The U.S. Support Program to IAEA Safeguards - Destructive Analysis

The U.S. Support Program (USSP) to IAEA Safeguards priority of destructive analysis is aimed at strengthening the IAEA's ability to use destructive analysis as a safeguards tool. IAEA inspectors bring back nuclear and environmental samples from inspections, which are first cataloged by the IAEA and then analyzed by a network of laboratories located in many Member States and the IAEA's own Safeguards Analytical Laboratory in Seibersdorf, Austria. Historically, the USSP was instrumental in introd… more

Date: July 13, 2008

Creator: Hoffheins,B.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

USSP-IAEA Workshop on Advanced Sensors for Safeguards

The IAEA Medium Term Strategy (2006-2011) defines a number of specific goals in respect to the IAEA's ability to provide assurances to the international community regarding the peaceful use of nuclear energy through States adherences to their respective non-proliferation treaty commitments. The IAEA has long used and still needs the best possible sensors to detect and measure nuclear material. The Department of Safeguards, recognizing the importance of safeguards-oriented R&D, especially ta… more

Date: November 13, 2007

Creator: Pepper,Susan; Queirolo, A.; Zendel, M.; Whichello, J.; Annese, C.; Griebe, J. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

20th International Training Course (ITC-20) on the physical protection of nuclear facilities and materials evaluation report.

The goal of this evaluation report is to provide the information necessary to improve the effectiveness of the ITC provided to the International Atomic Energy Agency Member States. This report examines ITC-20 training content, delivery methods, scheduling, and logistics. Ultimately, this report evaluates whether the course provides the knowledge and skills necessary to meet the participants needs in the protection of nuclear materials and facilities.

Date: September 1, 2008

Creator: Ramirez, Amanda Ann

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Neutron Capture gamma ENDF libraries for modeling and identification of neutron sources

There are a number of inaccuracies and data omissions with respect to gammas from neutron capture in the ENDF libraries used as field reference information and by modeling codes used in JTOT. As the use of Active Neutron interrogation methods is expanded, these shortfalls become more acute. A new, more accurate and complete evaluated experimental database of gamma rays (over 35,000 lines for 262 isotopes up to U so far) from thermal neutron capture has recently become available from the IAEA. T… more

Date: October 29, 2007

Creator: Sleaford, B

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Design and Construction Solutions in the Accurate Realization of NCSX Magnetic Fields

The National Compact Stellarator Experiment, NCSX, is being constructed at the Princeton Plasma Physics Laboratory (PPPL) in partnership with the Oak Ridge national Laboratory. The goal of NCSX is to provide the understanding necessary to develop an attractive, disruption free, steady state compact stellaratorbased reactor design. This paper describes the recently revised designs of the critical interfaces between the modular coils, the construction solutions developed to meet assembly toleranc… more

Date: September 29, 2008

Creator: Heitzenroeder, P.; Dudek, Lawrence E.; Brooks, Arthur W.; Viola, Michael E.; Brown, Thomas; Neilson, George H. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

A Review of the IAEA Vulnerability Assessment Level Scheme: Applicabiliy to DTRA and DOE Programs in the FSU

The International Atomic Energy Agency (IAEA) plans to use the Common Criteria, as the tool for developing graded and measurable evaluation criteria for information technology (IT) in safeguards systems in facilities subject to IAEA inspection. In their draft paper [ITSECSES] the IAEA defines a three-tiered Vulnerability Assessment Level (VAL) scheme. Each increased VAL level (1-3) defines additional and more stringent security and security-related requirements for the system developer, the sys… more

Date: December 6, 2001

Creator: Devaney, Mike M.; Hansen, Randy R.; Kouzes, Richard T. & Melton, Ronald B.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

U.S. and Russian Collaboration in the Area of Nuclear Forensics

Nuclear forensics has become increasingly important in the fight against illicit trafficking in nuclear and other radioactive materials. The illicit trafficking of nuclear materials is, of course, an international problem; nuclear materials may be mined and milled in one country, manufactured in a second country, diverted at a third location, and detected at a fourth. There have been a number of articles in public policy journals in the past year that call for greater interaction between the U.… more

Date: October 22, 2007

Creator: Kristo, M J

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Evaluation of the DRAGON Code for VHTR Design Analysis.

This letter report summarizes three activities that were undertaken in FY 2005 to gather information on the DRAGON code and to perform limited evaluations of the code performance when used in the analysis of the Very High Temperature Reactor (VHTR) designs. These activities include: (1) Use of the code to model the fuel elements of the helium-cooled and liquid-salt-cooled VHTR designs. Results were compared to those from another deterministic lattice code (WIMS8) and a Monte Carlo code (MCNP). … more

Date: January 12, 2006

Creator: Taiwo, T. A. & Kim, T. K.

Item Type: Report

Partner: UNT Libraries Government Documents Department