98 results on '"Idaho National Laboratory"'
Search Results
2. RELAP5-3D User Tools.
- Author
-
Forsmann, J. Hope
- Subjects
NUCLEAR reactors ,STEADY state conduction ,GRAPHICAL user interfaces ,UTILITIES (Computer programs) - Abstract
To support the functionality of RELAP5-3D for best-estimate reactor simulation code, a variety of utility programs were developed at Idaho National Laboratory. Conversion and upgrades of RELAP5-3D to FORTRAN 95 required the upgrades of these utility programs as well. Pygmalion (Pygi) and the RELAP5-3D Graphical User Interface (RGUI) are two of the utility programs that were upgraded and enhanced. Pygi creates a copy of a RELAP5-3D input file with updated initial condition information. From the restart/plot file of the RELAP5-3D run of an input deck, Pygi obtains the final conditions for each component. It creates a new input file that replaces the original input file values with updated conditions. This provides an accurate and efficient means of creating new input decks with steady-state input conditions. RGUI is an alternative to the command line interface for performing RELAP5-3D-related work. RGUI provides single-interface access to other RELAP5-3D tools such as Pygi. It is highly configurable, allowing the user to customize the environment. The interface runs on both Linux and Windows. This suite of utility programs is continually being enhanced to provide better support for RELAP5-3D users. This technical note provides details of Pygi and RGUI functionality. Future plans for enhancements are also included. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
3. Simulation of AER-DYN-002 and AER-DYN-003 Control Rod Ejection Benchmarks by RELAP5-3D/PHISICS Coupled Codes.
- Author
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Balestra, P., Parisi, C., Alfonsi, A., and Rabiti, C.
- Subjects
NUCLEAR research ,CONTROL elements (Nuclear reactors) ,STEADY state conduction ,THERMAL hydraulics ,NUCLEAR reactor cooling - Abstract
ENEA "Casaccia" Research Center is collaborating with Idaho National Laboratory performing activities devoted to the validation of the Parallel and Highly Innovative Simulation for INL Code System (PHISICS) neutron simulation code. In such framework, the AER-DYN-002 and AER-DYN-003 control rod (CR) ejection benchmarks were used to validate the coupled codes RELAP5-3D/PHISICS. The AER-DYN-002 benchmark provides a test case of a CR ejection accident in a VVER-440 at hot-zero-power and end-of-cycle conditions assuming an adiabatic fuel and taking into account only the fuel temperature feedback. The AER-DYN-003 benchmark is based on the same problem; however, the moderator density feedback and the coolant heat removal are also considered. A RELAP5-3D core channel-by-channel, thermal-hydraulic nodalization was developed and coupled, first with the RELAP5-3D internal neutronic routine NESTLE and then with the PHISICS code. Analysis of the AER-DYN-002 results shows that the steady-state solutions are in good agreement with the other participants' average solution, while some differences are shown in the transient simulations. In the AER-DYN-003 benchmark, however, both steady-state and transient results are in good agreement with the average solution. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
4. The BEPU Evaluation Model with RELAP5-3D for the Licensing of the Atucha-II NPP.
- Author
-
Petruzzi, A., Cherubini, M., Lanfredini, M., D'Auria, F., and Mazzantini, O.
- Subjects
NUCLEAR facility regulation ,HEAVY water reactors ,NUCLEAR models ,NUCLEAR power plants ,THERMAL hydraulics - Abstract
Within the licensing process of the Atucha-II pressurized heavy water reactor, the best-estimate plus uncertainty (BEPU) approach has been selected for issuing Chapter 15 of the Final Safety Analysis Report. The RELAP5-3D code developed by Idaho National Laboratory has been adopted as the best-estimate system thermal-hydraulic code to perform the accident analyses. The complexity of a nuclear power plant (NPP) and of the accident scenarios may be a challenge for a conservative analysis and may justify the choice of a BEPU approach in the licensing process. This implies two main needs: (1) the need to adopt and to prove (to the regulatory authority) an adequate quality for the computational tools and (2) the need to account for the uncertainty. The purpose of the present paper is to outline key aspects of the BEPU process aimed at the licensing of the Atucha-II (CNA-II) NPP in Argentina operated by Nucleoeléctrica Argentina (NA-SA). Among the general attributes of a methodology to perform accident analysis of a NPP for licensing purposes, the very first one should be compliance with the established regulatory requirements. A second attribute deals with the adequacy and the completeness of the selected spectrum of events that should consider the combined contributions of deterministic and probabilistic methods. The third attribute is connected to the availability of qualified tools and analytical procedures suitable for the analysis of accident conditions envisaged for the NPP of concern. The execution of the overall analysis and the evaluation of results in relation to slightly fewer than 100 scenarios revealed the wide safety margins available for the NPP of concern, which was licensed on May 29, 2014. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
5. Comparison of the PHISICS/RELAP5-3D Ring and Block Model Results for Phase I of the OECD/NEA MHTGR-350 Benchmark.
- Author
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Strydom, G., Epiney, A. S., Alfonsi, A., and Rabiti, C.
- Subjects
THERMAL hydraulics ,SIMULATION methods & models ,TRANSMUTATION (Chemistry) ,MAGNETIC flux - Abstract
The Parallel and Highly Innovative Simulation for INL Code System (PHISICS) has been under development at Idaho National Laboratory since 2010. It consists of several modules providing improved coupled core simulation capability: INSTANT (Intelligent Nodal and Semi-structured Treatment for Advanced Neutron Transport) (three-dimensional nodal transport core calculations); MRTAU (Multi- Reactor Transmutation Analysis Utility) (depletion and decay heat generation); and modules performing criticality searches, fuel shuffling, and generalized perturbation. Coupling of the PHISICS code suite to the thermal-hydraulic system code RELAP5-3D was finalized in 2013, and as part of the verification and validation effort, the first phase of the Organisation for Economic Co-operation and Development/Nuclear Energy Agency (OECD/NEA) MHTGR-350 benchmark has now been completed. The theoretical basis and latest development status of the coupled PHISICS/RELAP5-3D tool are described in more detail in a concurrent paper. This paper provides an overview of the OECD/NEA MHTGR-350 benchmark and presents the results of exercises 2 and 3 defined for phase I. Exercise 2 required the modeling of a stand-alone thermal fluids solution at the end of equilibrium cycle for the Modular High Temperature Gas-Cooled Reactor (MHTGR). The RELAP5-3D results of four subcases are discussed, consisting of various combinations of coolant bypass flows and material thermophysical properties. Exercise 3 required a coupled neutronics and thermal fluids solution, and the PHISICS/RELAP5-3D code suite was used to calculate the results of two subcases. The main focus of this paper is a comparison of results obtained with the traditional RELAP5-3D "ring" model approach against a much more detailed model that includes kinetics feedback on individual "block" level and thermal feedbacks on a triangular submesh. The higher fidelity that can be obtained by this block model is illustrated with comparison results on the temperature, power density, and flux distributions. It is shown that the ring model leads to significantly lower fuel temperatures (up to 10%) when compared with the higher-fidelity block model and that the additional model development and run-time efforts are worth the gains obtained in the improved spatial temperature and flux distributions. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
6. An Energy of Waste: Biogas Research in Idaho.
- Author
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HANSEN, JASON
- Subjects
IDAHO description & travel - Published
- 2019
7. UofU joins Idaho National Lab in energy, technology research effort.
- Author
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Wallace, Brice
- Subjects
RESEARCH & development partnership - Abstract
The article offers information on partnership agreement Strategic Understanding for Premier Education and Research (SUPER) between the University of Utah and Idaho National Laboratory (INL) on research and development collaborations and presents the views of INL Laboratory director John Wagner.
- Published
- 2022
8. Enhanced Photofission-based, Coincidence/Multiplicity Inspection Measurements.
- Author
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Jones, James L., Norman, Daren R., Haskell, Kevin J., Swinhoe, Martyn T., Tobin, Steve J., Geist, William H., Rothrock, Robert B., and Freeman, Cory R.
- Subjects
PHOTOFISSION ,MULTIPLICITY of nuclear particles ,PHOTONUCLEAR reactions ,BREMSSTRAHLUNG ,NEUTRON counters ,ELECTRON accelerators - Abstract
An enhanced active interrogation system has been developed that integrates a transportable Idaho National Laboratory (INL) photonuclear inspection system, using a pulsed bremsstrahlung source and a reconfigurable neutron detection system, with a Los Alamos National Laboratory (LANL) list-mode data acquisition system. A series of active interrogation experiments using various nuclear materials have shown enhanced nuclear material detection and identification utilizing pulsed photofission-induced, neutron coincidence/multiplicity counting between pulses of an electron accelerator operating at energies up to 10 MeV. This paper describes the integrated inspection system and presents some key shielded and unshielded nuclear material inspection results. The enhanced inspection methodology has applicability to homeland security and possible nuclear weapon dismantlement treaties. [ABSTRACT FROM AUTHOR]
- Published
- 2010
9. ACCESS TO SPECIAL NUCLEAR MATERIAL AT THE IDAHO NATIONAL LABORATORY.
- Author
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Bean, R., Brush, B., and Gerts, D.
- Subjects
NUCLEAR nonproliferation ,NUCLEAR-weapon-free zones ,NUCLEAR fuels - Abstract
Access to special nuclear material (SNM), such as enriched uranium or plutonium, is critical to the experimental validation of measurement techniques for nuclear nonproliferation applications. It is especially important that useful quantities be available for measurements in the field. However, security and safety requirements have made such access nearly impossible at many U.S. facilities. The Idaho National Laboratory (INL) has provided up to kilogram quantities of SNM for measurements in a variety of experimental conditions such as laboratories, outdoor facilities, and transfer to and from appropriate customer facilities. The INL expects to be working in the near future to make SNM more widely accessible for measurements by nuclear nonproliferation projects. [ABSTRACT FROM AUTHOR]
- Published
- 2010
10. International Data on Radiological Sources.
- Author
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Goldberg, Margaret and Finck, Martha
- Subjects
DIRTY bombs ,DATABASES ,FORENSIC ballistics ,DETONATORS - Abstract
The mission of radiological dispersal device (RDD) nuclear forensics is to identify the provenance of nuclear and radiological materials used in RDDs and to aid law enforcement in tracking nuclear materials and routes. The application of databases to radiological forensics is to match RDD source material to a source model in the database, provide guidance regarding a possible second device, and aid the FBI by providing a short list of manufacturers and distributors, and ultimately to the last legal owner of the source. The Argonne/Idaho National Laboratory RDD attribution database is a powerful technical tool in radiological forensics. The database (1267 unique vendors) includes all sealed sources and devices registered in the U.S., is complemented by data from the IAEA Catalogue, and is supported by rigorous in-lab characterization of selected sealed sources regarding physical form, radiochemical composition, and age-dating profiles. Close working relationships with global partners in the commercial sealed sources industry provide invaluable technical information and expertise in the development of signature profiles. These profiles are critical to the down-selection of potential candidates in either pre- or post- event RDD attribution. The down-selection process includes a match between an interdicted (or detonated) source and a model in the database linked to one or more manufacturers and distributors. [ABSTRACT FROM AUTHOR]
- Published
- 2010
11. Measurement and Characterization of Advanced Nuclear Fuels at the Idaho National Laboratory Through Neutron Energy Spectrum Unfolding.
- Author
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Dolan, J. L., Flaska, M., Pozzi, S. A., and Chichester, D. L.
- Subjects
GAMMA ray measurement ,RADIATION measurements ,NUCLEAR fuels ,SCINTILLATION of radio waves ,MONTE Carlo method ,NUCLEAR energy - Abstract
Results are presented on the ability to perform neutron energy spectroscopy with standard organic scintillation detectors. Well-established pulse-shape discrimination techniques are used to reject the detectors' gamma-ray signal and produce neutron pulse-height distributions. These distributions are 'unfolded' using a detector-specific response matrix to obtain the incident neutron energy spectrum. Unfolding results are introduced for the measurements and characterization of mixed-oxide fuel pins. The robust measurement system used to perform these measurements included four EJ-309 liquid scintillation detectors with a 250-MHz, 12-bit waveform digitizer. The MCNP-PoliMi Monte Carlo particle transport code was used to build the mixed-oxide fuel source and develop an anticipated neutron energy distribution. [ABSTRACT FROM AUTHOR]
- Published
- 2010
12. NGSI STUDENT ACTIVITIES IN OPEN SOURCE INFORMATION ANALYSIS IN SUPPORT OF THE TRAINING PROGRAM OF THE U.S. DOE LABORATORIES FOR THE ENTRY INTO FORCE OF THE ADDITIONAL PROTOCOL.
- Author
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Sandoval, M. Analisa, Uribe, Eva, Sandoval, Marisa N., Boyer, Brian D., and Stevens, Rebecca
- Subjects
OPEN source intelligence - Abstract
In 2008 a joint team from Los Alamos National Laboratory (LANL) and Brookhaven National Laboratory (BNL) consisting of specialists in training of IAEA inspectors in the use of complementary access activities formulated a training program to prepare the U.S. DOE laboratories for the entry into force of the Additional Protocol. In support of this activity, LANL summer interns provided open source information analysis to the BNL-LANL mock inspection team. They were a part of the Next Generation Safeguards Initiative's (NGSI) summer intern program aimed at producing the next generation of safeguards specialists. This paper describes how they used open source information to support the BNL-LANL team's effort to construct meaningful Additional Protocol Complementary Access training scenarios for each of the three DOE laboratories, Lawrence Livermore National Laboratory, Idaho National Laboratory, and Oak Ridge National Laboratory. [ABSTRACT FROM AUTHOR]
- Published
- 2009
13. Process Modeling for LEU Fuel Fabrication to Support Minimizing Use of HEU in Research Reactors.
- Author
-
Kornreich, Drew E. and Jackson, Joseph W.
- Subjects
URANIUM enrichment ,NUCLEAR reactors - Abstract
Los Alamos National Laboratory has constructed a demonstration enterprise system model for the production of low-enriched uranium (LEU) research-reactor fuel for the National Nuclear Security Administration (NNSA) NA-21 Reactor Convert Program. The model includes all major processes shown in the fabrication flowsheet proposed by the Idaho National Laboratory (INL) at the macroscopic process level (e.g., casting, coating, bonding) and includes sample material reject rates and amounts. The model is to be used to demonstrate capability to examine equipment requirements, equipment failure effects, and process reject-rate effects. The model is an original model constructed using the recently released ExtendSim™ version 7 using existing modeling concepts and using previous process evaluation work as the basis for data. [ABSTRACT FROM AUTHOR]
- Published
- 2009
14. DESIGN INFORMATION VERIFICATION FOR NUCLEAR SAFEGUARDS.
- Author
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Bean, Robert S., Metcalf, Richard R. M., and Durst, Phillip C.
- Subjects
INTERNATIONAL cooperation on nuclear nonproliferation ,INTERNATIONAL security ,NUCLEAR facilities ,ADULT education workshops - Abstract
A critical aspect of international safeguards activities performed by the International Atomic Energy Agency (IAEA) is the verification that facility design and construction (including upgrades and modifications) do not create opportunities for nuclear proliferation. These Design Information Verification activities require that IAEA inspectors compare current and past information about the facility to verify the operator's declaration of proper use. The actual practice of DIV presents challenges to the inspectors due to the large amount of data generated, concerns about sensitive or proprietary data, the overall complexity of the facility, and the effort required to extract just the safeguards relevant information. Planned and anticipated facilities will (especially in the case of reprocessing plants) be ever larger and increasingly complex, thus exacerbating the challenges. This paper reports the results of a workshop held at the Idaho National Laboratory in March 2009, which considered technologies and methods to address these challenges. The use of 3D Laser Range Finding, Outdoor Visualization System, Gamma-LIDAR, and virtual facility modeling, as well as methods to handle the facility data issues (quantity, sensitivity, and accessibility and portability for the inspector) were presented. The workshop attendees drew conclusions about the use of these techniques with respect to successfully employing them in an operating environment, using a Fuel Conditioning Facility walk-through as a baseline for discussion. [ABSTRACT FROM AUTHOR]
- Published
- 2009
15. Lessons Learned at the Idaho National Laboratory for the Entry into Force of the U.S. Additional Protocol.
- Author
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Joe, Jeffrey C. and Hoiland, Shauna A.
- Subjects
NUCLEAR facilities ,NUCLEAR fuels - Abstract
For a number of years, the Idaho National Laboratory (INL) has been preparing for the entry into force of the U.S. Additional Protocol (AP). These preparations included attending training, participating in tabletop exercises, preparing draft declarations, developing INL-specific guidance documents, preparing for and hosting a mock complementary access visit, and preparing declarations for official submittal. All of these activities, the training materials, and software developed by other U.S. DOE national laboratories (PNNL, ORNL, LANL, and BNL) were very helpful in preparing for the entry into force of the AP. As with any endeavor of this size and complexity, however, there are always instances where even the best preparations and advanced planning do not anticipate every challenge. As the DOE's lead nuclear energy research and development facility, the INL faced many unique challenges. The majority of research conducted at the INL is nuclear fuel cycle related, most of which is not exempted by the National Security Exclusion. This paper describes the lessons learned from the INL's experience of preparing for the entry into force of the AP, specifically how translating and implementing general principles into actual activities proved to be one of many challenges, and provides general suggestions on how to respond effectively and efficiently to routine annual data calls and other AP requests. [ABSTRACT FROM AUTHOR]
- Published
- 2009
16. Hourglass Sampling of Participants in the Human Reliability Program (HRP) for Drug and Alcohol (D&A) Testing.
- Author
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Thomas, Ivan R.
- Subjects
GOVERNMENT programs ,EMPLOYEE drug testing ,SAMPLING (Process) - Abstract
The article offers information on the new scheme that will comply with the Human Reliability Program (HRP), a personnel security program set up by the U.S. Department of Energy to ensure the trustiness of employees. The scheme called hourglass sampling, developed at the Idaho National Laboratory (INL), is used in selecting certified HRP employees for Drug and Alcohol (D&A) testing. It is also slated to be an effective method for integrating the features of finite sampling techniques.
- Published
- 2009
17. Neptunium Oxide Processing.
- Author
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Jordan, Jeffrey M., Watkins, Robert W., and Hensel, Stephen J.
- Subjects
NEPTUNIUM ,SAVANNAH River Site (S.C.) ,NUCLEAR fuels - Abstract
The Savannah River Site's HB-Line Facility completed a campaign in which fifty nine cans of neptunium oxide were produced and shipped to the Idaho National Laboratory in the 9975 shipping container. The neptunium campaign was divided into two parts: Part 1 which consisted of oxide made from H-Canyon neptunium solution which did not require any processing prior to conversion into an oxide, and Part 2 which consisted of oxide made from additional H-Canyon neptunium solutions which required processing to purify the solution prior to conversion into an oxide. The neptunium was received as a nitrate solution and converted to oxide through ion-exchange column extraction, precipitation, and calcination. Numerous processing challenges were encountered in order make a final neptunium oxide product that could be shipped in a 9975 shipping container. Among the challenges overcome was the issue of scale: translating lab scale production into full facility production. The balance between processing efficiency and product quality assurance was addressed during this campaign. Lessons learned from these challenges are applicable to other processing projects. [ABSTRACT FROM AUTHOR]
- Published
- 2009
18. Robotic Deployment for Facility and Hazard Mapping.
- Author
-
Few, Douglas A. and Nielsen, Curtis W.
- Subjects
ROBOTICS ,HAZARD mitigation ,ENVIRONMENTAL impact analysis ,NUCLEAR facilities - Abstract
The dispatching of robots into mission critical environments is becoming more and more commonplace as hardware evolves to a level of ruggedness demanded in these scenarios. Researchers at the Idaho National Laboratory (INL) have been working to bridge the gap between current robotic hardware readiness and its lack of efficient system deployment and usability. In 2007 the INL successfully deployed commercial off the shelf (COTS) robots targeted to Military and Hazmat Team usage outfitted with an intelligence payload in a series of chemical, biological, radiologic, nuclear, explosive (CBRNE) detection exercises. This paper examines the primitive behaviors that comprise the intelligent navigation payload used in the exercises, and discusses the experiments and the results. It also discusses how these technologies can be applied to the nuclear safeguards mission for the verification of facility floor plans and the cataloguing of sensor built maps for historical comparisons and analysis of chemical and nuclear facility activity. [ABSTRACT FROM AUTHOR]
- Published
- 2009
19. CYBER SECURITY AND RESILIENT SYSTEMS.
- Author
-
Anderson, Robert S.
- Subjects
COMPUTER security ,CYBERTERRORISM ,NUCLEAR facility security measures - Abstract
The Department of Energy (DOE) Idaho National Laboratory (INL) has become a center of excellence for critical infrastructure protection, particularly in the field of cyber security. It is one of only a few national laboratories that have enhanced the nation's cyber security posture by performing industrial control system (ICS) vendor assessments as well as user on-site assessments. Not only are vulnerabilities discovered, but described actions for enhancing security are suggested - both on a system-specific basis and from a general perspective of identifying common weaknesses and their corresponding corrective actions. These cyber security programs have performed over 40 assessments to date which have led to more robust, secure, and resilient monitoring and control systems for the US electrical grid, oil and gas, chemical, transportation, and many other sectors. In addition to cyber assessments themselves, the INL has been engaged in outreach to the ICS community through vendor forums, technical conferences, vendor user groups, and other special engagements as requested. Training programs have been created to help educate all levels of management and worker alike with an emphasis towards real everyday cyber hacking methods and techniques including typical exploits that are used. The asset owner or end user has many products available for its use created from these programs. One outstanding product is the US Department of Homeland Security (DHS) Cyber Security Procurement Language for Control Systems document that provides insight to the user when specifying a new monitoring and control system, particularly concerning security requirements. Employing some of the top cyber researchers in the nation, the INL can leverage this talent towards many applications other than critical infrastructure. Monitoring and control systems are used throughout the world to perform simple tasks such as cooking in a microwave to complex ones such as the monitoring and control of the next generation fighter jets or nuclear material safeguards systems in complex nuclear fuel cycle facilities. It is the intent of this paper to describe the cyber security programs that are currently in place, the experiences and successes achieved in industry including outreach and training, and suggestions about how other sectors and organizations can leverage this national expertise to help their monitoring and control systems become more secure. [ABSTRACT FROM AUTHOR]
- Published
- 2009
20. Measurement and Characterization of Nuclear Material at Idaho National Laboratory.
- Author
-
Dolan, J. L., Flaska, M., Pozzi, S. A., and Chichester, D. L.
- Subjects
NUCLEAR energy ,MONTE Carlo method ,RADIOACTIVE wastes ,GAMMA rays ,NUCLEAR spectroscopy ,SCINTILLATION spectrometry - Abstract
A measurement plan and preliminary Monte Carlo simulations are presented for the investigation of well-defined mixed-oxide fuel pins. Measurement analysis including pulse-height distributions and time-dependent cross-correlation functions will be performed separately for neutrons and gamma rays. The utilization of Monte Carlo particle transport codes, specifically MCNP-PoliMi, is discussed in conjunction with the anticipated measurements. Four EJ-309 liquid scintillation detectors with an accurate pulse timing and digital, offline, optimized pulse-shape discrimination method will be used to prove the dependency of pulse-height distributions, cross-correlation functions, and material multiplicities upon fuel pin composition, fuel pin quantity, and detector geometry. The objective of the measurements and simulations is to identify novel methods for describing mixed-oxide fuel samples by relating measured quantities to fuel characteristics such as criticality, mass quantity, and material composition. This research has applications in nuclear safeguards and nonproliferation. [ABSTRACT FROM AUTHOR]
- Published
- 2009
21. ENABLING INTERNATIONAL SAFEGUARDS RESEARCH AND DEVELOPMENT IN THE UNITED STATES.
- Author
-
Dwight, John E., Schanfein, Mark J., and Bjornard, Trond A.
- Subjects
NUCLEAR energy ,NUCLEAR nonproliferation ,RESEARCH & development ,INTERNATIONAL security - Abstract
Idaho National Laboratory (INL) is the lead laboratory in nuclear energy research and development within the U.S. Department of Energy national laboratory complex. INL is tasked with the advancement of nuclear energy research and development, and leadership in the renaissance of nuclear power globally. INL scientists have been central to the assessment of needs and the integration of technical programs aimed at the world-wide growth of nuclear power. One of the grand challenges of the nuclear energy resurgence is nuclear nonproliferation. Nonproliferation technology development is key to meeting this challenge. The needed advances in nonproliferation technologies are being made more difficult by the growing gap between increasing demands for nuclear materials to support technology development, and reduced availability of these materials. The gap is caused by the reduction, consolidation and more stringent lockdown of nuclear materials, made necessary by heightened and evolving security concerns, in the face of increased demand for materials to support technology development. Ironically, the increased demand for materials for technology development is made necessary by these same security concerns. The situation will continue to worsen if safeguards and security budgets remain limited for the International Atomic Energy Agency (IAEA) and many member states, while growth in global nuclear energy becomes a reality. Effective U.S. leadership in the closing of this gap is vital to homeland security and global stability. INL has taken positive steps, described in this paper, to close this gap by reestablishing a viable base for the development, testing and demonstration of safeguards and security technologies. Key attributes of this technology development base are (1) the availability of a wide variety of special nuclear materials in forms that allow for enhanced accessibility; (2) ease of access by U.S. government, national laboratory, industry and academic institution researchers; (3) openness to and ease of access by international users working through U.S. government sponsoring agencies; and (4) the availability of requisite infrastructure to support research, testing and demonstration. While there is still work to do in closing the gap between material accessibility and demand, the steps taken by INL to date begin to address this important challenge. [ABSTRACT FROM AUTHOR]
- Published
- 2009
22. Lawsuit filed over proposed spent fuel shipments.
- Subjects
ACTIONS & defenses (Law) ,TRADE associations ,SECURITY classification (Government documents) ,NUCLEAR fuels - Abstract
The article focuses on a lawsuit filed by the environmental group Advocates for the West on behalf of former Idaho governor Cecil Andrus against the U.S. Department of Energy (DOE) in an effort to force DOE to release information about the proposed shipment of commercial spent nuclear fuel to Idaho National Laboratory. Topics include the claim of the lawsuit, DOE's request for the waiver of the Batt Agreement, and the arguments of Andrus against DOE's request for a waiver.
- Published
- 2015
23. ISOTHERMAL AIR-INGRESS VALIDATION EXPERIMENTS.
- Author
-
OH, CHANG H. and EUNG SOO KIM
- Subjects
GAS cooled reactors ,COMPUTATIONAL fluid dynamics ,FLUID dynamics ,NUCLEAR reactors - Abstract
Idaho National Laboratory has conducted air-ingress experiments as part of a campaign to validate computational fluid dynamics (CFD) calculations for very high-temperature gas-cooled reactor (VHTR) analysis. An isothermal test loop was designed to recreate exchange or stratified flow that occurs in the lower plenum of VHTR after a break in the primary loop allows helium to leak out and reactor building air to enter the reactor core. The experiment was designed to measure stratified flow in the inlet pipe connecting to the lower plenum of the General Atomics gas turbine-modular helium reactor (GT-MHR). Instead of helium and air, brine and sucrose were used as heavy fluids, and water was used as the lighter fluid to create, using scaling laws, the appropriate flow characteristics of the lower plenum immediately after depressurization. These results clearly indicate that stratified flow is established even for very small density differences. Corresponding CFD results were validated with the experimental data. A grid sensitivity study on CFD models was also performed using the Richardson extrapolation and the grid convergence index method for the numerical accuracy of CFD calculations. The calculated current speed showed very good agreement with the experimental data, indicating that current CFD methods are suitable for simulating density gradient stratified flow phenomena in an air-ingress accident. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
24. IN-SITU CREEP TESTING CAPABILITY FOR THE ADVANCED TEST REACTOR.
- Author
-
Bong Goo Kim, Rempe, Joy L., Knudson, Darrell L., Condie, Keith G., and Sencer, Bulent H.
- Subjects
IRRADIATION ,NUCLEAR reactors ,STAINLESS steel ,COPPER - Abstract
An instrumented creep testing capability is being developed for specimens irradiated in pressurized water reactor coolant conditions at the Advanced Test Reactor (ATR). A test rig has been developed such that samples will be subjected to stresses up to 350 MPa at temperatures up to 370°C in pile. Initial Idaho National Laboratory (INL) efforts to develop this creep testing capability for the ATR are summarized. In addition to providing an overview of in-pile creep test capabilities available at other test reactors, this paper reports efforts by the INL to evaluate a prototype test rig in an autoclave at INL's High Temperature Test Laboratory. Data from autoclave tests with Type 304 stainless steel and copper specimens are reported. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
25. Conditioning of Chloride Salt Wastes from Pyroprocesses Through the Pressureless Consolidation Process.
- Author
-
De Angelis, Giorgio, Fedeli, Carlo, Manniello, Antonello, Da Ros, Mirko, Giacobbo, Francesca, Macerata, Elena, and Mariani, Mario
- Subjects
CHLORIDES ,SALTS ,PRESSURE ,SODALITE ,CHEMICAL synthesis - Abstract
Abstract: Sodalite has been taken into account as a matrix for conditioning chloride salt wastes coming from pyroprocesses. The present paper illustrates the research activities finalized to demonstrate the feasibility of sodalite synthesis through the Pressureless Consolidation (PC) process, proposed by Idaho National Laboratories (INL) in USA. A homogeneous powder of nepheline, chloride salts and glass frit was put into an alumina crucible and slightly pressed with another alumina crucible of a smaller diameter, inside which a stainless steel bar had been inserted. The entire assembly was introduced in a furnace inside an Argon-atmosphere glove-box and heated at 925°C for 7hours. The product obtained has then been characterized by means of density measurements, thermal analysis, stereomicroscopy observations, as well as FTIR and XRD. The latter correspond to the ones of sodalite reported in the spectral library. Leach tests under static conditions according to ASTM C1285-02 (reapproved 2008) have been carried out and successfully compared with those obtained by INL. [Copyright &y& Elsevier]
- Published
- 2012
- Full Text
- View/download PDF
26. COMPUTATIONAL MODEL OF THE MARK-IV ELECTROREFINER: TWO-DIMENSIONAL POTENTIAL AND CURRENT DISTRIBUTIONS.
- Author
-
HOOVER, ROBERT O., PHONGIKAROON, SUPATHORN, SIMPSON, MICHAEL F., TAE-SIC YOO, and LI, SHELLY X.
- Subjects
CONDUCTIVITY of electrolytes ,FUSED salts ,ELECTRIC conductivity - Abstract
A computational model of the Mark-IV electrorefiner is currently being developed as a joint project between Idaho National Laboratory, Korea Atomic Energy Research Institute, Seoul National University, and the University of Idaho. As part of this model, the two-dimensional potential and current distributions within the molten salt electrolyte are calculated for U
3+ , Zr4+ and Pu3+ along with the total distributions, using the partial differential equation solver of the commercial Matlab software. The electrical conductivity of the electrolyte solution is shown to depend primarily on the composition of the electrolyte and to average 205 mho/m with a standard deviation of 2.5 x 10-5 % throughout the electrorefining process. These distributions show that the highest potential gradients (thus, the highest current) exist directly between the two anodes and cathode. The total, uranium, and plutonium potential gradients are shown to increase throughout the process, with a slight decrease in that of zirconium. The distributions also show small potential gradients and very little current flow in the region far from the operating electrodes. [ABSTRACT FROM AUTHOR]- Published
- 2011
- Full Text
- View/download PDF
27. DEVELOPMENT OF COMPUTATIONAL MODELS FOR THE MARK-IV ELECTROREFINER-EFFECT OF URANIUM, PLUTONIUM, AND ZIRCONIUM DISSOLUTION AT THE FUEL BASKET-SALT INTERFACE.
- Author
-
Hoover, Robert O., Phongikaroon, Supathorn, Simpson, Michael F., Li, Shelly X., and Tae-Sic Yoo
- Subjects
ELECTROLYTIC reduction ,URANIUM ,PLUTONIUM ,ZIRCONIUM ,NUCLEAR fuels - Abstract
The electrochemical processing of spent metallic nuclear fuel has been demonstrated by and is currently in operation at the Idaho National Laboratory (INL). At the heart of this process is the Mark-IV electrorefiner (ER). This process involves the anodic dissolution of spent nuclear fuel into a molten salt electrolyte along with a simultaneous deposition of pure uranium on a solid cathode. This allows the fission products to be separated from the fuel and processed into an engineered waste form. A one-dimensional model of the Mark-IV ER has begun to be developed. The computations thus far have modeled the dissolution of the spent nuclear fuel at the anode taking into account uranium (U
3+ ), plutonium (Pu3+ ), and zirconium (Zr4+ ). Uranium and plutonium are the two most important elements in the system, whereas zirconium is the most active of the noble metals. The model shows that plutonium is quickly exhausted from the anode, followed by dissolution of primarily uranium, along with small amounts of zirconium. The total anode potential as calculated by the model has been compared to experimental data sets provided by INL. The anode potential has been shown to match the experimental values quite well with root-mean-square (rms) values of 2.27 and 3.83%for two different data sets, where rms values closer to zero denote better fit. [ABSTRACT FROM AUTHOR]- Published
- 2010
- Full Text
- View/download PDF
28. Measurement and Characterization of Nuclear Material at Idaho National Laboratory.
- Author
-
Dolan, Jennifer L., Flaska, M., Pozzi, S. A., and Chichester, D. L.
- Subjects
MIXED oxide fuels (Nuclear engineering) ,NEUTRON measurement ,GAMMA ray measurement ,MONTE Carlo method ,PULSE height analyzers ,LIQUID scintillation counting - Abstract
A measurement plan and preliminary Monte Carlo simulations are presented for the investigation of well-defined mixed-oxide fuel pins. Measurement analysis including pulse-height distributions and time-dependent cross-correlation functions will be performed separately for neutrons and gamma rays. The utilization of Monte Carlo particle transport codes, specifically MCNP-PoliMi, is discussed in conjunction with the anticipated measurements. Four EJ-309 liquid scintillation detectors with an accurate pulse timing and digital, offline, optimized pulse-shape discrimination method will be used to prove the dependency of pulse-height distributions, cross-correlation functions, and material multiplicities upon fuel pin composition, fuel pin quantity, and detector geometry. The objective of the measurements and simulations is to identify novel methods for describing mixed-oxide fuel samples by relating measured quantities to fuel characteristics such as criticality, mass quantity, and material composition. This research has applications in nuclear safeguards and nonproliferation. [ABSTRACT FROM AUTHOR]
- Published
- 2009
29. A Train for a Plane.
- Author
-
WAITE, THORNTON
- Subjects
NUCLEAR locomotives - Abstract
The author focuses on the use of the Test Area North nuclear locomotive in nuclear reactor research program at Idaho National Laboratory in Idaho.
- Published
- 2017
30. Nuclear waste legislation introduced in Senate.
- Subjects
NUCLEAR energy laws ,CLEANUP of radioactive waste sites - Abstract
The article offers information on various issues related to nuclear power as of August 2013. It states that four U.S. Senators have introduced a nuclear waste legislation including Dianne Feinstein, Lamar Alexander, and Ron Wyden. It mentions that CH2M-WG Idaho, nuclear waste cleanup contractor of the U.S. Department of Energy's (DOE) Idaho National Laboratory, will resume its legacy following the hazardous waste removal announcement of Idaho Governor C. L. Otter.
- Published
- 2013
31. LOST PERSON BEHAVIOR.
- Author
-
Dart, Cooper
- Subjects
RADIOACTIVE waste storage ,NUCLEAR energy - Published
- 2021
32. INL MARS "HOPPER".
- Author
-
Chung, Sandra
- Subjects
SPACE vehicle design & construction ,NUCLEAR energy ,MARTIAN geology - Abstract
The article reports on the initiative of the researchers and students at the Center for Space Nuclear Research (CSNR) at the Idaho National Laboratory (IDL) to design and develop a nuclear-powered spacecraft hopper in Mars. It indicates that the spacecraft can examine the Martian and can jump to different sites for hundreds of times. Moreover, it stresses that the Mars hopper can be able to gather Martian rock and dust samples that can be used for further examination.
- Published
- 2011
33. Mars Power.
- Author
-
McNall, Brianna
- Subjects
SPACE vehicles ,RADIOISOTOPES in astronautics ,MARTIAN exploration ,ISOTOPIC power generators - Abstract
The article features Steve Johnson, director of the Space Nuclear Systems and Technology Division of Idaho National Laboratory, and his involvement in the creation of the Radioisotope Thermoelectric Generator (RTG) in 2010. RTG is the power source for the Mars Scientific Laboratory that will be launched in 2011. He was also involved in the creation of the Space and Security Power Systems (SSPS) facility in 2003.
- Published
- 2010
34. Celebrating Robert J. Moon at 100.
- Subjects
MARTIAN exploration equipment ,ARGENTINA-Brazil relations - Abstract
The article focuses on various issues related to science and technology. It discusses the legacy of doctor Robert J. Moon in science such as his contributions in the Manhattan Project. An agreement has been signed by Brazil and Argentina in an effort to build two multi-purpose research reactors in each country. A nuclear-powered hopper has been designed by a team at the Idaho National Laboratory, which can examine Martian sites.
- Published
- 2010
35. IDAHO NATIONAL LABORATORY.
- Subjects
PLASMA gas research ,RESEARCH grants - Abstract
The article presents a study conducted by Peter Kong, technical lead for plasma processing at the Idaho National Laboratory (INL), in Idaho in 2010. Kong uses plasma to mass-produce nanoparticles, a project that secured one million dollars in federal stimulus funding. Kong is also using plasma to search ways to stock hydrogen and plans to begin a project with the use of plasma to convert natural gas to diesel.
- Published
- 2010
36. The Critical Difference.
- Author
-
Stone, Brett
- Subjects
ENGINEERS ,SAFETY - Abstract
The article features Idaho National Laboratory's nuclear criticality safety validation expert engineer J. Blair Briggs. The International Criticality Safety Benchmark Evaluation Project (ICSBEP) and the International Reactor Physics Experiment Evaluation Project (IRPhEP) are discussed. Also presented are descriptions of Brigg's family life, his education and challenges in his work.
- Published
- 2009
37. Executive Committee Meeting Minutes.
- Subjects
CONFERENCES & conventions ,SCHOLARSHIPS - Abstract
Information about the topics discussed at the Executive Committee Meeting on May 2, 2009 is presented. Topics include the Treasurer's Second-Half report from October 31, 2008 to May 2, 2009, information on the expenses acquired from October 29, 2008 to April 30, 2009, and status of Idaho Academy for Science (IAS) scholarship funds distribution. The meeting is attended by several Idaho National Laboratory (INL) officials including Mark Daily, Doug Marshall, and Ewin Filby.
- Published
- 2009
38. INL PHYSICS TEACHERS WORKSHOP.
- Author
-
Seely, Jo
- Subjects
CONFERENCES & conventions ,TEACHERS' workshops ,RENEWABLE energy sources conferences - Abstract
Information about the topics discussed at the 2009 National Physics Teachers Workshop sponsored by the Idaho National Laboratory in July 2009 is presented. Topics include the facets of energy, the importance of science and engineering in all levels of education, and on the alternative and renewable energy. The workshop features the nuclear field experts including Phillip Finck, Kathryn McCarthy, and John Gutteridge.
- Published
- 2009
39. Microorganisms Extract Rare Earth Metals from Phosphate Rock.
- Subjects
RARE earth metals ,PHOSPHOGYPSUM ,PHOSPHATE rock ,MINES & mineral resources - Abstract
The article informs that researchers at Idaho National Laboratory (INL) has developed a novel method to recover rare earth elements (REEs) from phosphogypsum, a waste product of phosphate rock mining. It mentions that rare earth elements are most commonly contained in mineral deposits buried within rock. It mentions views of David Reed, an engineer at INL, on same.
- Published
- 2019
40. CYBER WARFARE.
- Author
-
Newman-Grigg, Robin
- Subjects
CYBERTERRORISM ,WEAPONS ,INTEGRATED circuits ,CONFIDENTIAL communications - Abstract
The article offers information on cyber warfare which is gaining popularity among nations as compared to weapons and forces. It mentions that the Communications Security Establishment Canada (CSEC) detected a breach in their systems. It states that there is no mutual assured destruction (MAD) in cyber war. It offers information on the experiment called Aurora Test, conducted by the Idaho National Laboratory that depicted how cyber attack manipulate, circuit breakers.
- Published
- 2015
41. HALF-LIFE.
- Author
-
MURRI, JESSICA
- Subjects
PLUTONIUM ,LABORATORY accidents ,CHEMICAL reactors - Abstract
The article discusses the changes in the family of Ralph Stanton, one of the workers exposed in an uncontrolled release of plutonium at the Zero Power Physics Reactor (ZPPR) of the Idaho National Laboratory (INL) on November 8, 2011. Stanton recalls the incident and the condition that he and his wife, Jodi, and daughter, Marissa, suffered after the incident. The side of the INL officials regarding the incident is also provided.
- Published
- 2014
42. Idaho's waste agreement called into question.
- Subjects
RADIOACTIVE wastes ,FEDERAL government - Abstract
The article reports on revisions in the 1995 nuclear waste agreement between the state of Idaho and the federal government as mandated by the Leadership in Nuclear Energy Commission. The council was established by Idaho Governor C. L. Otter to evaluate the policies and actions of the Idaho National Laboratory. The Depertment of Energy reportedly authorizes the removal of nuclear fuel and transuranic wastes from the laboratory. INSET: Waste Management Briefs.
- Published
- 2013
43. Lifetime Achievement Award.
- Author
-
Stricker, Nicole
- Subjects
OCCUPATIONAL achievement ,PHYSICISTS ,INVENTIONS ,SPECTRUM analysis ,TECHNOLOGICAL innovations ,AWARDS - Abstract
The article reports on the career achievements of A. J. Caffrey, a physicist at the Idaho National Laboratory (INL). It says that Caffrey received the 2012 INL Lifetime Achievement Award for his contributions to the advancement of science and engineering studies. It notes that the 20th anniversary of his invention, the Portable Isotopic Neutron Spectroscopy (PINS) system, is also celebrated in the year.
- Published
- 2012
44. IDAHO NATIONAL LABORATORY.
- Author
-
Chung, Sandra
- Subjects
COMPUTER software development ,COMPUTER simulation ,THREE-dimensional imaging - Abstract
The article discusses the creation of osgBullet visualization software package by the Idaho National Laboratory engineers which was funded by the Armament Research, Development and Engineering Center (ARDEC) of the U.S. Army and the Department of Energy. It mentions that osgBullet can help design engineers to generate three-dimensional (3D) simulation. Moreover, it cites the effort of the developers to find ways on how to improve the visualization with sounds and touch information.
- Published
- 2010
45. UAV Surveys Landscape.
- Author
-
Sandra Chung
- Subjects
DRONE aircraft ,WIRELESS Application Protocol (Computer network protocol) ,SECURITY management ,AUTOMATIC pilot (Airplanes) ,AIRPLANE takeoff ,VEHICLE design & construction - Abstract
The article offers information on the Arcturus T-16 unmanned aerial vehicles (UAVs) created by the Idaho National Laboratory (INL). It says that state-of-the-art imaging and wireless technology were added to T-16s so it can rapidly survey a wide area for damage and track down security threats. Furthermore, the human pilot does the programming in a flight path and monitor the plane in the air as the onboard computer autopilot does most of the work of coordinating take-off, flying and landing.
- Published
- 2010
46. Solar System Exploration.
- Author
-
McNall, Brianna
- Subjects
EDUCATIONAL programs ,NUCLEAR research ,VISUAL programming (Computer science) ,AEROSPACE engineering - Abstract
The article reports on the 10-week Summer Fellows program offered by the Idaho National Laboratory's Center for Space Nuclear Research (CSNR) for graduate and undergraduate students in nuclear engineering, physics, mechanical and aerospace engineering, mathematics and chemistry. It states that the project is focused on planetary and surface exploration capabilities. It notes that participants are given an access to modern facilities including computer-assisted visualization environment.
- Published
- 2010
47. OTHER IDAHO ORGANIZATIONS.
- Subjects
ASSOCIATIONS, institutions, etc. ,DRAINAGE design & construction ,CAMP sites - Abstract
The article offers several information related to organizations in Idaho in 2010. The Bureau of Land Management will hold the 8th Annual Dubois Grouse Days to be held in Dubois from April 16-17. The Nature Conservancy plans to continue to concentrate its protection efforts in the Crooked Creek drainage to link the habitat within the Idaho National Laboratory. The Idaho Native Plant Society gathered at the Wildhorse Campground in Custer County to collect some wildflowers along the way.
- Published
- 2010
48. NUCLEAR IDAHO.
- Author
-
Hagadone, Zach
- Subjects
RESEARCH institutes ,NUCLEAR research - Abstract
The article focuses on the Idaho National Laboratory (INL), the largest employer in Idaho, with employing 4,100 staff. It states that it is the lead nuclear research center of the U.S. Department of Energy, which pioneered most of the technologies that harness the use of atom. It also mentions that the INL has experienced 9 percent growth during 2008-2009 and increase its business volume to 870 million dollars.
- Published
- 2010
49. "New" fuel for University of Maryland research reactor: The Maryland University Training Reactor was refueled in March with "lightly used" fuel provided by the DOE's Idaho Site.
- Subjects
RESEARCH reactors ,NUCLEAR engineering - Published
- 2017
50. NEWS OF THE INDUSTRY.
- Subjects
WELDING equipment - Abstract
The article offers news briefs related to welding equipment in the U.S. in 2010. Yaskawa America Inc. is planning to establish Motoman Robotics welding at North American facility in Ohio in June 2011. Helium Leak Testing Inc. is celebrating its 50th anniversary celebration for operating Hanford Nuclear Power Plants using mass spectrometer helium leak detector (MSHLD) in California. Idaho National Laboratory has developed a robotic material handling, welding and inspection system in Idaho.
- Published
- 2010
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