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Considerations Related To Human Intrusion In The Context Of Disposal Of Radioactive Waste-The IAEA HIDRA Project
The principal approaches for management of radioactive waste are commonly termed ‘delay and decay’, ‘concentrate and contain’ and ‘dilute and disperse’. Containing the waste and isolating it from the human environment, by burying it, is considered to increase safety and is generally accepted as the preferred approach for managing radioactive waste. However, this approach results in concentrated sources of radioactive waste contained in one location, which can pose hazards should the facility be disrupted by human action in the future. The International Commission on Radiological Protection (ICRP), International Atomic Energy Agency (IAEA), and Organization for Economic Cooperation and Development/Nuclear Energy Agency (OECD/NEA) agree that some form of inadvertent human intrusion (HI) needs to be considered to address the potential consequences in the case of loss of institutional control and loss of memory of the disposal facility. Requirements are reflected in national regulations governing radioactive waste disposal. However, in practice, these requirements are often different from country to country, which is then reflected in the actual implementation of HI as part of a safety case. The IAEA project on HI in the context of Disposal of RadioActive waste (HIDRA) has been started to identify potential areas for improved consistency in consideration …
Date:
January 9, 2014
Creator:
Seitz, Roger; Kumano, Yumiko; Bailey, Lucy; Markley, Chris; Andersson, Eva & Beuth, Thomas
System:
The UNT Digital Library
ILC Higgs White Paper
None
Date:
January 9, 2014
Creator:
Barklow, T.; Asner, D. M.; Calancha, C.; Fujii, K.; Graf, N.; Haber, H. E. et al.
System:
The UNT Digital Library
Unveiling the Nature of the Unidentified gamma-rays Sources VIII: Computing the Association Probability
None
Date:
January 9, 2014
Creator:
Massaro, F.; D'Abrusco, R.; Masetti, N.; Omodei, N.; Smith, Howard A. & Funk, S.
System:
The UNT Digital Library
Upper Bound on the First Star Formation History
None
Date:
January 9, 2014
Creator:
Inoue, Yoshiyuki; Tanaka, Yasuyuki T.; Madejski, Grzegorz M. & Dominguez, Alberto
System:
The UNT Digital Library
Web-based Tool Identifies and Quantifies Potential Cost Savings Measures at the Hanford Site - 14366
The Technical Improvement system is an approachable web-based tool that is available to Hanford DOE staff, site contractors, and general support service contractors as part of the baseline optimization effort underway at the Hanford Site. Finding and implementing technical improvements are a large part of DOE’s cost savings efforts. The Technical Improvement dashboard is a key tool for brainstorming and monitoring the progress of submitted baseline optimization and potential cost/schedule efficiencies. The dashboard is accessible to users over the Hanford Local Area Network (HLAN) and provides a highly visual and straightforward status to management on the ideas provided, alleviating the need for resource intensive weekly and monthly reviews.
Date:
January 9, 2014
Creator:
Renevitz, Marisa J.; Peschong, Jon C.; Charboneau, Briant L. & Simpson, Brett C.
System:
The UNT Digital Library
Characterization of the x-ray sensitivity of a streak camera used at the National Ignition Facility (NIF)
None
Date:
September 9, 2013
Creator:
Khan, S. F.; Lee, J. J.; Hatch, B.; Larsen, G. K.; Izumi, N.; MacPhee, A. G. et al.
System:
The UNT Digital Library
A hollow cathode ion source for production of primary ions for the BNL EBIS
N/A
Date:
September 9, 2013
Creator:
Alessi, J.; Beebe, E.; Carlson, C.; McCafferty, D.; Pikin, A. & Ritter, J.
System:
The UNT Digital Library
Passive Vector Geoacoustic Inversion in Coastal Areas Using a sequential Unscented Kalman Filter
None
Date:
September 9, 2013
Creator:
Candy, J V; Ren, Q Y & Hermand, J P
System:
The UNT Digital Library
Polarimetry at the AGS
N/A
Date:
September 9, 2013
Creator:
Poblaguev, A.; Aschenauer, E.; Atoian, G.; Basilevsky, A.; Eyser, K. O.; Huang, H. et al.
System:
The UNT Digital Library
The polarized hydrogen jet target measurements at RHIC
N/A
Date:
September 9, 2013
Creator:
A., Poblaguev; Aschenauer, E.; Atoian, G.; Basilevsky, A. Eyser, K.O.; Huang, H.; Makdisi, Y. et al.
System:
The UNT Digital Library
Radiation Safety at LCLS: The Photon Beams Maximum Capability and Material Damage Potential
None
Date:
September 9, 2013
Creator:
Bauer, J. M.; Liu, J. C.; Prinz, A. A. & Rokni, S. H.
System:
The UNT Digital Library
Measurement of the $e^+e^- \to p \bar{p}$ Cross Section in the Energy Range from 3.0 to 6.5 GeV
None
Date:
August 9, 2013
Creator:
Lees, J. P.
System:
The UNT Digital Library
Axisymmetric Simulations of the ITER Vertical Stability Coil
The ITER in-vessel coil system includes Vertical Stability (VS) coils and Edge Localized Mode (ELM) coils. There are two large VS ring coils, one upper and one lower. Each has four turns which are independently connected. The VS coils are needed for successful operation of ITER for most all of its operating modes. The VS coils must be highly reliable and fault tolerant. The operating environment includes normal and disruption Lorentz forces. To parametrically address all these design conditions in a tractable analysis requires a simplified model. The VS coils are predominately axisymmetric, and this suggests that an axisymmetric model can be meaningfully used to address the variations in mechanical design, loading, material properties, and time dependency. The axisymmetric finite element analysis described in this paper includes simulations of the bolted frictional connections used for the mounting details. Radiation and elastic-plastic response are modeled particularly for the extreme faulted conditions. Thermal connectivity is varied to study the effects of partial thermal connection of the actively cooled conductor to the remaining structure.
Date:
July 9, 2013
Creator:
Titus, Peter H.
System:
The UNT Digital Library
Dalitz Plot Analysis of B- \to D+ Pi- Pi-
None
Date:
July 9, 2013
Creator:
Karbach, T.M. & U., /Dortmund
System:
The UNT Digital Library
Development of a Process to Build Polyimide Insulated Magnets For Operation at 350C
An extensive R&D program has been conducted that has confirmed the feasibility of designing and fabricating copper alloy magnets that can successfully operate at temperatures as high as 350C. The process, originally developed for the possibility of manufacturing in-vessel resonant magnetic field perturbation (RMP) coils for JET, has been optimized for insulated magnet (and, potentially, other high temperature component) applications. One of the benefits of high temperature operation is that active cooling may no longer be required, greatly simplifying magnet/component design. These elevated temperatures are beyond the safe operating limits of conventional OFHC copper and the epoxies that bond and insulate the turns of typical magnets. This would necessitate the use an alternative copper alloy conductor such as C18150 (CuCrZr). Coil manufacture with polyimide is very similar to conventional epoxy bonded coils. Conductors would be dry wound then impregnated with polyimide of low enough viscosity to permit saturation, then cured; similar to the vacuum pressure impregnation process used for conventional epoxy bonded coils. Representative polyimide insulated coils were mechanically tested at both room temperature and 350C. Mechanical tests included turn-to-turn shear bond strength and overall polyimide adhesion strength, as well as the flexural strength of a 48-turn polyimide-bonded coil bundle. …
Date:
July 9, 2013
Creator:
Zatz, Irving J.
System:
The UNT Digital Library
Extra Dimensions at the LHC
None
Date:
July 9, 2013
Creator:
Kong, Kyoungchul; /SLAC; Matchev, Konstantin; U., /Florida; Servant, Geraldine & /Saclay, SPhT /CERN
System:
The UNT Digital Library
The Hunt for New Physics at the Large Hadron Collider
None
Date:
July 9, 2013
Creator:
Nath, Pran; Nelson, Brent D.; Davoudiasl, Hooman; Dutta, Bhaskar; Feldman, Daniel; Liu, Zuowei et al.
System:
The UNT Digital Library
LSST Science Book, Version 2.0
None
Date:
July 9, 2013
Creator:
Abell, Paul A.; Allison, Julius; Anderson, Scott F.; Andrew, John R.; Angel, J.; Roger, P. et al.
System:
The UNT Digital Library
Measurements of the Gate Tuned Superfluid Density in Superconducting LaAlO3/SrTiO3
None
Date:
July 9, 2013
Creator:
Bert, Julie A.; Nowack, Katja C.; Kalisky, Beena; Noad, Hilary; Kirtley, John R.; Bell, Chris et al.
System:
The UNT Digital Library
Physics Design of a 28 GHz Electron Heating System for the National Spherical Torus Experiment Upgrade
A megawatt-level, 28 GHz electron heating system is being designed to support non-inductive (NI) plasma current (I{sub p}) start-up and local heating and current drive (CD) in H-mode discharges in the National Spherical Torus Experiment Upgrade (NSTX-U). The development of fully NI I{sub p} start-up and ramp-up is an important goal of the NSTX-U research program. 28 GHz electron cyclotron (EC) heating is predicted to rapidly increase the central electron temperature (T{sub e}(0)) of low density NI plasmas generated by Coaxial Helicity Injection (CHI). The increased T{sub e}(0) will significantly reduce the Ip decay rate of CHI plasmas, allowing the coupling of fast wave heating and neutral beam injection. Also 28 GHz electron Bernstein wave (EBW) heating and CD can be used during the I{sub p} flat top in NSTX-U discharges when the plasma is overdense. Ray tracing and Fokker-Planck numerical simulation codes have been used to model EC and EBW heating and CD in NSTX-U. This paper presents a pre-conceptual design for the 28 GHz heating system and some of the results from the numerical simulations.
Date:
July 9, 2013
Creator:
Taylor, G.; Bertelli, N.; Ellis, R. A.; Gerhardt, S. P.; Harvey, R. W.; Hosea, J. C. et al.
System:
The UNT Digital Library
Readiness of the ATLAS Liquid Argon Calorimeter for LHC Collisions
None
Date:
July 9, 2013
Creator:
Aad, G & /Marseille, CPPM /Oklahoma U. /Barcelona, IFAE /Geneva U. /Oxford U. /Baku, Inst. Phys. /Oklahoma State U. /Michigan State U. /Tel Aviv U. /Orsay, LAL /ICTP, Trieste /INFN, Udine /Brookhaven /Hampton U. /Yale U. /Calabria U. /INFN, Cosenza /Queen Mary, U. of London /Rutherford /Brandeis U. /CAFPE, Granada
System:
The UNT Digital Library
RESEARCH AND DEVELOPMENT ACTIVITIES AT SAVANNAH RIVER SITE'S H CANYON FACILITY
The Savannah River Site's (SRS) H Canyon Facility is the only large scale, heavily shielded, nuclear chemical separations plant still in operation in the U.S. The facility's operations historically recovered uranium-235 (U-235) and neptunium-237 (Np-237) from aluminum-clad, enriched-uranium fuel tubes from Site nuclear reactors and other domestic and foreign research reactors. Today the facility, in conjunction with HB Line, is working to provide the initial feed material to the Mixed Oxide Facility also located on SRS. Many additional campaigns are also in the planning process. Furthermore, the facility has started to integrate collaborative research and development (R&D) projects into its schedule. H Canyon can serve as the appropriate testing location for many technologies focused on monitoring the back end of the fuel cycle, due to the nature of the facility and continued operation. H Canyon, in collaboration with the Savannah River National Laboratory (SRNL), has been working with several groups in the DOE complex to conduct testing demonstrations of novel technologies at the facility. The purpose of conducting these demonstrations at H Canyon will be to demonstrate the capabilities of the emerging technologies in an operational environment. This paper will summarize R&D testing activities currently taking place in H Canyon …
Date:
July 9, 2013
Creator:
Sexton, L. & Fuller, Kenneth
System:
The UNT Digital Library
The Search of Axion-Like-Particles With Fermi and Cherenkov Telescopes
None
Date:
July 9, 2013
Creator:
Sanchez-Conde, Miguel A.; Paneque, David; Bloom, Elliott D.; Prada, Francisco & Dominguez, Alberto
System:
The UNT Digital Library
Simulation of Experiments on Passive Focusing of TNSA-Produced Proton Beams
None
Date:
July 9, 2013
Creator:
Cohen, R H; Yuen, A; Belli, C; Lund, S M & Ni, P A
System:
The UNT Digital Library