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A 6.7 MeV cw RFQ linac

Description: A 6.7-MeV 350 MHz, cw Radio Frequency Quadrupole proton linac has been designed and is being fabricated for the Accelerator Production of Tritium Project at Los Alamos. This eight-meter long structure consists of four resonantly-coupled segments and is being fabricated using hydrogen furnace brazing as a joining technology. Details of the design and status of fabrication are reported.
Date: August 1, 1997
Creator: Schrage, D.; Young, L.; Clark, W.; Davis, T.; Martinez, F.; Naranjo, A. et al.
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Partner: UNT Libraries Government Documents Department
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100 Areas technical activities report -- Physics, January 1949

Description: Activities covered in this report for the month of January are as follows: (1) power coefficient test of the F Pile; (2) control rod calibration; (3) investigations into reactivity gains possible by zoning the pile for metal charging; (4) polonium production under emergency conditions: (5) analysis of process tube ion chamber failures; (6) measurements of the thermal neutron flux in various pockets of the E Test Hole of the F Pile; (7) reactivity balance of each of the operating piles at beginn… more
Date: February 15, 1949
Creator: Gast, P. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A 3He{sup +}{sup +} RFQ accelerator for the production of PET isotopes

Description: Project status of the 3He{sup +}{sup +} 10.5 MeV RFQ Linear Accelerator for the production of PET isotopes will be presented. The accelerator design was begun in September of 1995 with a goal of completion and delivery of the accelerator to BRF in Shreveport, Louisiana by the summer of 1997. The design effort and construction is concentrated in Lab G on the Fermilab campus. Some of the high lights include a 25 mA peak current 3He` ion source, four RFQ accelerating stages that are powered by sur… more
Date: May 1, 1997
Creator: Pasquinelli, R.J. & Collaboration, E887
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Partner: UNT Libraries Government Documents Department
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A1-U fuel foaming/recriticality considerations for production reactor core-melt accidents

Description: Severe accident studies for the Savannah River production reactors indicate that if coherent fuel melting and relocation occur in the absence of target melting, in-vessel recriticality may be achieved. In this paper, fuel-melt/target interaction potential is assessed, where fission gas-induced fuel foaming and melt attach on target material are evaluated and compared with available data. Models are developed to characterize foams for irradiated Al-based fuel. Predictions indicate transient foam… more
Date: January 1, 1990
Creator: Cronenberg, A.W. (Engineering Science and Analysis, Albuquerque, NM (USA)); Hyder, M.L. & Ellison, P.G. (Westinghouse Savannah River Co., Aiken, SC (USA))
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Partner: UNT Libraries Government Documents Department
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Accelerator production of tritium 700 MHz and 350 MHz klystron test results

Description: The Accelerator Production of Tritium project (APT) utilizes a 1,700 MeV, 100 mA proton Linac. The radio frequency (RF) power is provided by 244 continuous wave (CW) klystron amplifiers at 350 MHz and 700 MHz. All but three of the klystrons operate at a frequency of 700 MHz. The 350 MHz klystrons have a nominal output power of 1.2 MW at a DC-to-RF conversion efficiency of 65%. They are modulating-anode klystrons and operate at a beam voltage and current of 95 kV and 20 A. The design is based on… more
Date: December 31, 1998
Creator: Rees, D.; Lynch, M. & Tallerico, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Accelerator production of tritium plant design and supporting engineering development and demonstration work

Description: Tritium is an isotope of hydrogen with a half life of 12.3 years. Because it is essential for US thermonuclear weapons to function, tritium must be periodically replenished. Since K reactor at Savannah River Site stopped operating in 1988, tritium has been recycled from dismantled nuclear weapons. This process is possible only as long as many weapons are being retired. Maintaining the stockpile at the level called for in the present Strategic Arms Reduction Treaty (START-I) will require the Dep… more
Date: November 1, 1997
Creator: Lisowski, Paul W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Accelerator Production of Tritium Programmatic Environmental Impact Statement Input Submittal

Description: The Programmatic Environmental Impact Statement for Tritium Supply and Recycling considers several methods for the production of tritium. One of these methods is the Accelerator Production of Tritium. This report summarizes the design characteristics of APT including the accelerator, target/blanket, tritium extraction facility, and the balance of plant. Two spallation targets are considered: (1) a tungsten neutron-source target and (2) a lead neutron-source target. In the tungsten target concep… more
Date: February 1, 1996
Creator: Miller, L. A.; Greene, G. A. & Boyack, B. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Accelerator Production of Tritium Waste Characterization and Certification Challenges

Description: This paper summaries the processes and methods APT used for the identification and classification of the waste streams, the characterization and certification of the waste streams, and waste minimization.
Date: June 1, 1998
Creator: Ades, M. J.; England, J. L.; Nowacki, P. L.; Hane, R.; Tempel, K. L.; Pitcher, E. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Accident progression event tree analysis for postulated severe accidents at N Reactor

Description: A Level II/III probabilistic risk assessment (PRA) has been performed for N Reactor, a Department of Energy (DOE) production reactor located on the Hanford reservation in Washington. The accident progression analysis documented in this report determines how core damage accidents identified in the Level I PRA progress from fuel damage to confinement response and potential releases the environment. The objectives of the study are to generate accident progression data for the Level II/III PRA sour… more
Date: June 1, 1990
Creator: Wyss, G. D.; Camp, A. L.; Miller, L. A.; Dingman, S. E.; Kunsman, D. M. & Medford, G. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An Account of Oak Ridge National Laboratory's Thirteen Research Reactors

Description: The Oak Ridge National Laboratory has built and operated 13 nuclear reactors in its 66-year history. The first was the graphite reactor, the world's first operational nuclear reactor, which served as a plutonium production pilot plant during World War II. It was followed by two aqueous-homogeneous reactors and two red-hot molten-salt reactors that were parts of power-reactor development programs and by eight others designed for research and radioisotope production. One of the eight was an all-m… more
Date: August 1, 2009
Creator: Rosenthal, Murray Wilford
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Acoustic emission monitoring of HFIR vessel during hydrostatic testing

Description: This report discusses the results and conclusions reached from applying acoustic emission monitoring to surveillance of the High Flux Isotope Reactor vessel during pressure testing. The objective of the monitoring was to detect crack growth and/or fluid leakage should it occur during the pressure test. The report addresses the approach, acoustic emission instrumentation, installation, calibration, and test results.
Date: August 1, 1992
Creator: Friesel, M. A. & Dawson, J. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Acoustics and voiding dynamics during SLSF simulations of LMFBR undercooling transients

Description: The SLSF is the largest U.S. in-reactor test vehicle for steady-state and transient experiments in an environment typical of a LMFBR core. The SLSF experiment program, sponsored by the Department of Energy, contributes to the LMFBR safety assurance program by providing data on key phenomena that occur during postulated reactor accidents. This paper describes completed SLSF experiments, in-core instrumentation used, and methods of data interpretation to determine sodium boiling and voiding dynam… more
Date: January 1, 1978
Creator: Anderson, T. T.; Kuzay, T. M.; Marr, W. W.; Miles, K. J.; Pedersen, D. R.; Thompson, D. H. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Actinide production from xenon bombardments of curium-248

Description: Production cross sections for many actinide nuclides formed in the reaction of /sup 129/Xe and /sup 132/Xe with /sup 248/Cm at bombarding energies slightly above the coulomb barrier were determined using radiochemical techniques to isolate these products. These results are compared with cross sections from a /sup 136/Xe + /sup 248/Cm reaction at a similar energy. When compared to the reaction with /sup 136/Xe, the maxima in the production cross section distributions from the more neutron defici… more
Date: January 1, 1985
Creator: Welch, R.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Actinide production in /sup 136/Xe bombardments of /sup 249/Cf

Description: The production cross sections for the actinide products from /sup 136/Xe bombardments of /sup 249/Cf at energies 1.02, 1.09, and 1.16 times the Coulomb barrier were determined. Fractions of the individual actinide elements were chemically separated from recoil catcher foils. The production cross sections of the actinide products were determined by measuring the radiations emitted from the nuclides within the chemical fractions. The chemical separation techniques used in this work are described … more
Date: August 1, 1985
Creator: Gregorich, K.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Activation caused by proton beam losses in Accelerator Production of Tritium LINAC

Description: A variety of accelerator designs are being considered for the Accelerator Production of Tritium (APT) project at Alamos National Laboratory. Because activation of the structural components of the accelerator is considered a major radiation protection issue, we have developed a computational methodology to estimate quantitatively radionuclide inventories and gamma dose rates resulting from accelerator operation. The work presented here illustrates the use of our computational methodology by focu… more
Date: March 1, 1996
Creator: Beard, C. A.; Eaton, S. L.; Daemen, L. L.; Waters, L. S. & Wilson, W. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Additional measurements of the radiation environment at the Los Alamos Spallation Radiation Effects Facility at LAMPF

Description: Foil activation dosimetry experiments were conducted in a ''rabbit'' system at the completed Los Alamos Spallation Radiation Effects Facility (LASREF). The ''raffit'' system contains four tubes spaced radially outward 0.12, 0.18, 0.27, and 0.38 meters off beam centerline. Foils were irradiated for 3 to 62 hours to measure the neutron flux and energy spectrum radially from beam centerline, along the beamline, and the effect of the Isotope Production (IP) target loadings on the neutron flux in th… more
Date: January 1, 1986
Creator: Davidson, D. R.; Reedy, R. C.; Greenwood, L. R.; Sommer, W. F. & Wechsler, M. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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