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  Partner: UNT Libraries Government Documents Department
 Decade: 1960-1969
Decommissioning of the Special Metallurgical Building at Mound Laboratory

Decommissioning of the Special Metallurgical Building at Mound Laboratory

Date: December 31, 1965
Creator: Harris, W. R.; Kokenge, B. R. & Marsh, G. C.
Description: The Special Metallurgical Building at Mound Laboratory, a building of 18,515 sq ft of floor space, was decommissioned. This decommissioned facility formerly housed 238PU processes for the fabrication of radioisotopic fueled heat sources. The 238PU work was conducted in 585 linear ft of gloveboxes occupying approximately 12,600 sq ft of the building. All of the gloveboxes, process services, building services, interior walls, and ceilings were removed to the point of exit at the roof. Eighty-five percent of the filter banks occupying 700 sq ft of floor space was also removed. Special procedures and special equipment were used to reduce the amount of 238PU in the building from approximately 100,000 Ci at the start of the effort to less than 0.3 Ci without a significant release to the environment.
Contributing Partner: UNT Libraries Government Documents Department
ORGDP Container Test and Development Program Fire Tests of UF6-Filled Cylinders

ORGDP Container Test and Development Program Fire Tests of UF6-Filled Cylinders

Date: January 12, 1966
Creator: A.J., Mallett
Description: Fire tests of bare, UF{sub 6}-filled shipping cylinders were conducted at the ORGDP Rifle Range during October 1965 as part of the AEC-ORO Container Test and Development Program presently under way at the ORGDP. The multi purpose effort was to determine if the cylinders would hydrostatically or explosively rupture; the time available for fire fighting before either incident occurred; and the degree of contamination as related to the type of UF{sub 6} release, wind velocity, and terrain. In addition to the cylinder fire tests, other tests were made for further evaluation of the fire-resistant BOX foam plastic. These included a newly designed shipping drum for 5-in.-diam cylinders, and 15B-type wood shipping boxes for small containers. In one case, the latter contained a UF{sub 6}-filled Harshaw cylinder. The test times ranged from 45 to 95 min. In no instance did temperatures exceed 200 F These tests are discussed under Part B. Our Nuclear Engineering Department was responsible for site preparation and the test program. The Safety and Health Physics Departments Mr. A. F. Becher, head, provided primary assistance in the conductance of the tests and was additionally responsible for the environmental monitoring and sampling. Personnel of the Plant Shift Operations and ...
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LAWRENCE RADIATION LABORATORY COUNTING HANDBOOK

LAWRENCE RADIATION LABORATORY COUNTING HANDBOOK

Date: October 1, 1966
Creator: Group, Nuclear Instrumentation
Description: The Counting Handbook is a compilation of operational techniques and performance specifications on counting equipment in use at the Lawrence Radiation Laboratory, Berkeley. Counting notes have been written from the viewpoint of the user rather than that of the designer or maintenance man. The only maintenance instructions that have been included are those that can easily be performed by the experimenter to assure that the equipment is operating properly.
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NOTE ON TRANSISTORS FOR AVALANCHE-MODE OPERATION

NOTE ON TRANSISTORS FOR AVALANCHE-MODE OPERATION

Date: March 1, 1962
Creator: Miller, Harold W. & Kerns, Quentin A.
Description: We have found that selected Motorola transistors of the MM-486, MM-487, and MM-488 type are quite useful for avalanche-mode operation. Figure 1 shows a circuit used in conjunction with a traveling-wave oscilloscope for selecting avalanche units. The output of the line-type pulse generator is 40 to 60 volts (either polarity of output pulse is available), and the rise time is less than 0.5 nsec. Figure Z shows a plot of the static V-I characteristics of the collector-to-emitter junction for various units, avalanching and nonavalanching. A transistor that avalanches will do 80 over the entire flat portion of the V-I characteristic. One can expect that 10 to 30% of the transistors will avalanche. There is some indication that the low-beta type (MM-486) give the best yield. There is a time delay of a few nanoseconds between application of a trigger pulse and the rise of the main avalanche current. Figures 3 and 4 shows this delay, measured between the 50% point of the trigger-voltage waveform and the 50% point of the avalanche output waveform, as a function of trigger-voltage amplitude (Fig. 3) and static-collector current (Fig. 4). The negative-resistance region (such as that in Fig. 2) should be avoided if time ...
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NOTE ON TRANSISTORS FOR AVALANCHE-MODE OPERATION

NOTE ON TRANSISTORS FOR AVALANCHE-MODE OPERATION

Date: May 23, 1962
Creator: Miller,Harold W. & Kerns, Quentin A.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
SOME THOUGHTS ON STABILITY IN NONLINEAR PERIODIC FOCUSING SYSTEMS

SOME THOUGHTS ON STABILITY IN NONLINEAR PERIODIC FOCUSING SYSTEMS

Date: September 5, 1967
Creator: McMillan, Edwin M.
Description: A brief discussion is given of the long-term stability of particle motions through periodic focusing structures containing lumped nonlinear elements. A method is presented whereby one can specify the nonlinear elements in such a way as to generate a variety of structures in which the motion has long-term stability.
Contributing Partner: UNT Libraries Government Documents Department
SPARK-GAP-TRIGGER AMPLIFIER

SPARK-GAP-TRIGGER AMPLIFIER

Date: October 20, 1964
Creator: Kerns, Q.A. & Miller, H.W.
Description: Short over-all time delay, low time jitter, and excellent long-term reliability are among the desirable features designed into a pulse generator that produces a 2-MW output pulse 30 nsec after the application of a 1-V signal at its 50-ohm input connector. The 10-kV output pulse can be used to trigger simultaneously several spark gaps of the type used in spark-chamber pulse modulators. The 10{sup 8} power gain of the spark-gap-trigger amplifier is achieved by four stages of amplification packaged in a 5-1/4 inch rack-mount chassis that operates directly from a 117-V line. The individual stages, each selected to give minimum time delay for a given power gain at their respective power levels are: avalanche transistors, planar triode, grounded-grid planar triode, and a triggered-spark gap. The techniques used for the last stage, a spark gap triggered by a corona light, are of particular interest since the same techniques are applicable to obtaining short time delays and long-term reliability from the larger spark gaps that the amplifier was designed to trigger. During 10 months of operation, there have been no failures and no adjustments necessary in any of the seven spark-gap trigger amplifiers used in various spark-chamber experiments at the Lawrence Radiation ...
Contributing Partner: UNT Libraries Government Documents Department
A SPARK-GAP TRIGGER SYSTEM

A SPARK-GAP TRIGGER SYSTEM

Date: August 6, 1963
Creator: Schrank, Glen E.; Henry, George R.; Kerns, Quentin A. & Swanson, Robert A.
Description: The construction and operation of a trigger system designed to fire a 30-kV 5000 A spark gap with a minimum delay following the arrival of a small signal pulse is described. In this particular experiment a 150-MeV/c muon is detected with scintillators on three 6199 phototubes, and the output pulse of the attached tunnel-diode triple-coincidence circuit is amplified and used to trigger the gap. Approximately 32 nanoseconds are needed from passage of the muon to the coincidence output, and approximately 25 nanoseconds are required from the coincidence output to the time of complete breakdown of the gap. These delays represent the shortest times that we could achieve with the particular boundary conditions under which the circuit had to operate. Sufficient detail is given to show how additional savings of nanoseconds could be made under different operating conditions.
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FAST BEAM CHOPPERS FOR THE ELECTRON-RING ACCELERATOR

FAST BEAM CHOPPERS FOR THE ELECTRON-RING ACCELERATOR

Date: February 7, 1969
Creator: Faltens, Andris & Kerns, Cordon.
Description: Two beam choppers were constructed which produce an approximately square, 20-ns pulse of 3+-MeV electrons out of the best portion of the 300-ns Astron beam or an 8-{micro}s microwave electron linac beam for injection into the electron-ring accelerator (ERA) compressor. The choppers are impedance-matched traveling-wave devices which deflect the beam with equal strength electric and magnetic forces, and are powered with either three-electrode spark gaps or thyratrons and a 20-ns pulse line. The electron beam is biased out of the beam-transport system with a dc magnetic field, and switched into it with the chopper.
Contributing Partner: UNT Libraries Government Documents Department
Trip Report. Industrial Health Survey of Mound Laboratory

Trip Report. Industrial Health Survey of Mound Laboratory

Date: October 24, 1964
Creator: Davis, C.E. & Shaykin, J.D.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Tungsten Cladding of Tungsten-Uranium Dioxide (W-UO2) Composites by Deposition from Tungsten Hexafluoride (WF6)

Tungsten Cladding of Tungsten-Uranium Dioxide (W-UO2) Composites by Deposition from Tungsten Hexafluoride (WF6)

Date: February 15, 1965
Creator: Lamartine, J.T. & Hoppe, A.W.
Description: A program is being conducted to develop a process for cladding tungsten and tungsten cermet fuels with tungsten deposited from the vapor state by the hydrogen reduction of tungsten hexafluoride. Early work was performed using recrystallized, high purity, commercial tungsten as the substrate material. Temperatures in the range 660 to 12950F (350 to 1700°C) and pressures from 10 to 350 mm Hg were investigated. Hydrogen to WF 6 ratios of 10: 1 to 150: 1 were utilized. Efforts were directed toward optimizing deposition process parameters to attain control of qualities such as coating thickness, uniformity, density, impurity content, and surface quality. Substrate penetration methods have been investigated in the interest of completely eliminating the interface between the fueled substrate and cladding. In addition, the effects of process parameters and post-cladding heat treatments on the fuel retention properties of clad composites at 4500 degrees F (2480 degrees C) in hydrogen for 2 hours have been evaluated. As a result of work performed during the first phase of the program it has been shown that the rate of deposition of tungsten from WF 6 and the uniformity of the deposit can be varied in a predictable and reproducible manner by exercising control ...
Contributing Partner: UNT Libraries Government Documents Department
Trip Report, Solar aircraft, May 26, 1960

Trip Report, Solar aircraft, May 26, 1960

Date: June 10, 1960
Creator: Henry, D.L.
Description: Discussions held with A. S. Stetson, General George Gordes and W. Compton going over technical aspects of Contract NO-S-935 for the research and development studies on coating materials for SNAP reactors.
Contributing Partner: UNT Libraries Government Documents Department
Trip Report. Industrial Health Survey of Mound Laboratory (Deleted Version)

Trip Report. Industrial Health Survey of Mound Laboratory (Deleted Version)

Date: July 6, 1961
Creator: Davis, C.E.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Trip Report Industrial Health Survey of Mound Laboratory

Trip Report Industrial Health Survey of Mound Laboratory

Date: March 19, 1963
Creator: Davis, C.E.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Mound Laboratory Progress Report for December, 1964

Mound Laboratory Progress Report for December, 1964

Date: December 21, 1964
Creator: EIchelberger, J.F.; Grove, G.R. & Jones, L.V.
Description: This monthly report has the following sections: (1) Radioelements - Uranium-234, Hydrolytic Separations of Protactinium, Polonium-208 and Polonium-209; (2) Isotope Separation and Purification - Carbon-13, Helium, Neon, Argon, Krypton, Xenon, Thermal Diffusion Research, and Helium Research; (3) Analytical and Instrumentation - Neptunium Analysis, Cobalt Analysis, Analysis of Enriched Uranium-234 for Comparison Purposes, Analysis of Stearic Acid in Silver Powder, Nuclear Magnetic Resonance Studies, Semiconductor Radiation Detectors, and Calorimetry.
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Mound Logbook(303,901-303,950)(Deleted Version)

Mound Logbook(303,901-303,950)(Deleted Version)

Date: January 1, 1964
Creator: none
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Conceptual Mechanical Design for a Fast Energy Spectrum Nuclear Rocket Engine

Conceptual Mechanical Design for a Fast Energy Spectrum Nuclear Rocket Engine

Date: June 18, 1965
Creator: Hussey, C. C.; Woike, O. G. & Zwick, J. W.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The Decontamination and Recovery of Precious Meatals. Quarterly Progress Report Period from April 1, 1960 to July 1, 1960,

The Decontamination and Recovery of Precious Meatals. Quarterly Progress Report Period from April 1, 1960 to July 1, 1960,

Date: January 1, 1960
Creator: none
Description: This report is the first quarterly report under Contract AT(30-1)-2528 for the decontamination and recovery of precious metals from contaminated scrap. This program encompasses the recovery of gold, platinum, iridium, rhodium and palladium from scrap and contaminated laboratory ware, equipment, etc. which may be contaminated by alpha emitters (i.e., uranium, plutonium and possibly polonium or combinations of these), beta-gamma emitters such as fission products or all three sources of radiation. In addition the scrap can be chemically contaminated by base metals, graphite or other contaminants. Osmium, ruthenium or silver are not to be recovered. Since the scrap can exist in such a great variety of forms such as platinum-rhodium laboratory crucibles, graphite crucibles containing platinum-base metal alloys derived from vacuum fusion baths, insulated thermocouple wires, reactor liners, porous platinum filters, alloys such as Baker alloy 413 (60 Au, 25 Pd, 15 Pt) it may be necessary to devise specific methods for a given type of scrap. Nevertheless the basic chemistry is the same and information and methods applicable to single systems will apply directly to the more complicated ones. Accordingly the relatively simple systems would be investigated first and the more complicated ones later in the program. An essential and ...
Contributing Partner: UNT Libraries Government Documents Department
Artificial Heart Pump (Additional Endogenous Heat) Program

Artificial Heart Pump (Additional Endogenous Heat) Program

Date: January 27, 1969
Creator: Davis, N. E.; Davenport, C. H. & Kelly, D. P.
Description: Three plutonium-238 radioisotope-powered heat sources were developed and fabricated at Mound Laboratory for use by Thermo Electron Engineering Corporation (TEECO) in the Artificial Heart Pump (Additional Endogenous Heat) Program. These sources contained doubly encapsulated plutonum-238 metal; two had a thermal power of 15(+2-0) W and one had 25(+0-2) W. Details of the design, fabrication, and testing of the heat sources are given in this report. Two of the heat sources (one 15-W and one 25-W) were shipped to TEECO for use with special heat exchangers in implantation experiments on dogs at Boston City Hospital. These tests have been under way since July, 1967. The third heat source (15-W) was fabricated for in-house testing at Mound Laboratory.
Contributing Partner: UNT Libraries Government Documents Department
Fabrication of Tungsten-UO 2 Hexagonal-Celled Fuel-Element Configurations

Fabrication of Tungsten-UO 2 Hexagonal-Celled Fuel-Element Configurations

Date: December 4, 1964
Creator: Goetsch, R.R.; Cover, P.W.; Gripshover, P.J. & Wilson, W.J.
Description: The gas-pressure-bonding process is being evaluated as a means of fabricating tungsten-UO 2 hexagonal-celled fuel geometries. A two-part study was initiated to optimize the fuel materials and to develp the required fixturing and loading techniques. Production of fueled tungsten-coated UO 2 particles in in progress so that geometries embodying coated particles or coated particles plus fine tungsten powder can be evaluated. Tests to data have shown the rquirement for a pretreatment in which a gaseous oxide phase is removed. Initial loading and fixturing procedures were proven satisfactory by the fabrication of a 19-cylindrical-hole hexagonal-type composite.
Contributing Partner: UNT Libraries Government Documents Department
Health Physics Manual

Health Physics Manual

Date: January 26, 1967
Creator: none
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Industrial Health Survey of Mound Laboratroy. June 7-8, 1961

Industrial Health Survey of Mound Laboratroy. June 7-8, 1961

Date: January 11, 1962
Creator: Scott, D.L.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Development of Uranium Dioxide - Tungsten Cermet fuel Specimens for Thermionic Applications

Development of Uranium Dioxide - Tungsten Cermet fuel Specimens for Thermionic Applications

Date: July 1, 1968
Creator: Gripshover, P.J. & Peterson, J.H.
Description: The Lewis Research Center of the National Aeronautics and Space Administration initiated a project at Battelle Memorial Institute for the purpose of fabricating clad fuel pellet containment vessel assemblies. These assemblies house clad fuel pellets containing enriched fuel. Irradiation studies of these assemblies in the NASA Plum Brook Reactor will provide data required for the desigi of thermionic converter reactors being considered by NASA. Three major objectives were defined at the initiation of this project at Battelle. These were (1) to provide containment vessel assemblies for irradiation studies, (2) to identify the best fuel dispersion/cladding combination for the fueled pellets, and (3) to identify and optimize the most promising fabrication technique to the extent necessary to provide reproducible specimens. In addition to these major objectives, other goals were defined in relation to supporting studies required for the successful conclusion of this program. The approach for accomplishing these objectives involved the cooperation of various research and research support groups at Battelle. These groups contributed to the overall program by involvement in the following areas: (1) Preparation or procurement of various types of UO{sub 2} fuel particles; (2) Application of tungsten coating to the fuel particles; (3) Development of various powder-consolidation techniques ...
Contributing Partner: UNT Libraries Government Documents Department
Precision Grinding of Diallyl Phthalate Thermosetting Plastic

Precision Grinding of Diallyl Phthalate Thermosetting Plastic

Date: April 4, 1969
Creator: Weeks, J. E. & Osborne, J. M.
Description: A semiautomatic grinder was designed and built at Mound Laboratory to grind molded plastic detonator heads to close tolerances. It uses a vertical spindle, dry grinding technique to decrease grinding time of some diallyl phthalate (DAP) detonator heads with wire inserts and to eliminate the problem of error in repeatability which is characteristic of the manual grinding process. The semiautomatic grinder is essentially air-operated with electrical control and was primarily designed using standard components for ease of manufacture and maintenance. As development of the semiautomatic grinder progressed, DAP detonator heads with wire inserts ground using the manual surface grinder were evaluated along with the same type of detonator heads ground using the semiautomatiac grinder. Also, a time study was conducted to determine the cost savings of grinding miniature DAP detonator heads with wire inserts using the semiautomatic grinder. Inspection and analytical results and radiographic sections of ground detonator head surfaces from each grinding technique indicated that the semiautomatic grinding technique provides acceptable ground DAP detonator heads with wire inserts at a cost savings of 83.5% and a significant reduction in grinding time.
Contributing Partner: UNT Libraries Government Documents Department
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