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323,116 Matching Results

Start Over Decade 1960-1969

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prev Results: 49 - 72 of 323,116 next
Best Match Title Creator Date Created (Newest) Date Created (Oldest) Date Added (Newest) Date Added (Oldest)
DEEP SEA RADIOISOTOPE-FUELED THERMOELECTRIC GENERATOR POWER SUPPLY SYSTEM. SNAP-21B PROGRAM, PHASE I. Final Summary Report. (open access)

DEEP SEA RADIOISOTOPE-FUELED THERMOELECTRIC GENERATOR POWER SUPPLY SYSTEM. SNAP-21B PROGRAM, PHASE I. Final Summary Report.

None
Date: January 1, 1966
Creator: Benson, D.; Panneman, R. & Yanisch, V. Jr.
Object Type: Report
System: The UNT Digital Library
Fission Product Energy Release and Inventory From $sup 239$Pu Fast Fission. (open access)

Fission Product Energy Release and Inventory From $sup 239$Pu Fast Fission.

None
Date: January 1, 1967
Creator: Battat, M. E.; Dudziak, D. J. & Hicks, H. R.
Object Type: Report
System: The UNT Digital Library
Evaluation of Carbon Transport Phenomena in HTGR Systems. (open access)

Evaluation of Carbon Transport Phenomena in HTGR Systems.

None
Date: January 1, 1968
Creator: Burnette, R. D.; Bell, W. E.; Zumwalt, L. R. & Perry, C. A.
Object Type: Report
System: The UNT Digital Library
ELECTRON PARAMAGNETIC RESONANCE STUDIES OF RADIATION EFFECTS IN SOLIDS AND CHEMICAL COMPOUNDS. Technical Progress Report, June 1, 1968--May 31, 1969. (open access)

ELECTRON PARAMAGNETIC RESONANCE STUDIES OF RADIATION EFFECTS IN SOLIDS AND CHEMICAL COMPOUNDS. Technical Progress Report, June 1, 1968--May 31, 1969.

None
Date: January 1, 1969
Creator: Kim, Y W
Object Type: Report
System: The UNT Digital Library
The Electrical Resistivity of Molten and Solid Thorium-Magnesium Eutetic (open access)

The Electrical Resistivity of Molten and Solid Thorium-Magnesium Eutetic

Electrical resistivity properties of polycrystalline 39 wt % thorium-- magnesium eutectic are reported for the solid from room temperature to its melting point at 589 deg C and as a liquid from its melting point to 900 deg C. The electrical resistivity of the eutectic at the melting point was 69.5 microhm- centimeters; it decreased to a value of 64.8 microhm-centimeters at 900 C. Tantalum tubing was used to contain the alloy in the molten state. (auth)
Date: May 1, 1962
Creator: Provow, D. M. & Fisher, R. W.
Object Type: Report
System: The UNT Digital Library
Sodium Chemistry, Fission Product Contamination. (open access)

Sodium Chemistry, Fission Product Contamination.

None
Date: October 31, 1969
Creator: Silberberg, M.; Guon, J. & Zwetzig, G.
Object Type: Report
System: The UNT Digital Library
Optical Processing of Radionuclide Images. (open access)

Optical Processing of Radionuclide Images.

None
Date: 1969~
Creator: Beck, Robert N.; Charleston, Donald B.; Harper, Paul V. & Yasillo, Nicholas J.
Object Type: Report
System: The UNT Digital Library
Oscillating Vertical Magnetic Dipole Above a Conducting Half-Space (open access)

Oscillating Vertical Magnetic Dipole Above a Conducting Half-Space

The electromagnetic field produced by a vertical oscillating magnetic dipole above a plane conducting earth is obtained in integral form. An exact solution in closed form is obtained for the case in which the dipole and the point of observation are both located on the surface of the earth. (auth)
Date: April 1, 1961
Creator: Wesley, J. P.
Object Type: Report
System: The UNT Digital Library
ORR Operations for Period April 1961 to April 1962 (open access)

ORR Operations for Period April 1961 to April 1962

A summary of the activities in the 4th operational year is presented for the ORR. On-stream time at 30 Mw was relatively steady with 75.4 and 83.7% representing the lowest and highest quarters. Modification of the ball-latch mechanism of the shim-rod-drives is in progress. The primary cooling system bypass control valve was modified and a d-c pony motor was added at the No. 3 primary pump. This addition was made to increase the reliability of adequate water flow for afterheat cooling. A study of coreboiling detection is being conducted. (J.R.D.)
Date: October 16, 1962
Creator: Binford, F.T.; Casto, W.R. & Colomb, A.L.
Object Type: Report
System: The UNT Digital Library
Thermodynamic Data Program Involving Plutonia and Urania at High Temperatures. Quarterly Report No. 6. (open access)

Thermodynamic Data Program Involving Plutonia and Urania at High Temperatures. Quarterly Report No. 6.

None
Date: January 1, 1969
Creator: Aitken, E. A. & Evans, S. K.
Object Type: Report
System: The UNT Digital Library
Mixing and Evaporation in a Packed Vessel (open access)

Mixing and Evaporation in a Packed Vessel

In connection with an evaluation of the operability of a 36-inch diameter remote evaporator at the Idaho Chemical Processing Plant that was to be packed with a corrosionresistant neutron-poison packing for criticality control, an investigation in a 30-inch diameter vessel proved that air sparging effectively mixes solutions. The data showed that at similar spar;e rates the presence of the packing caused an increase in the time needed for complete mixing. The investigation showed that solutions are readily evaporated in spite of the presence of packing in the tank. (auth)
Date: September 20, 1961
Creator: Cederberg, C. K. & Buckham, J. A.
Object Type: Report
System: The UNT Digital Library
Reactor Development Program. Progress Report, December 1967 (open access)

Reactor Development Program. Progress Report, December 1967

None
Date: December 31, 1968
Creator: unknown
Object Type: Report
System: The UNT Digital Library
In- Phantom Dosimetry of 147 Pm2 0 3 Heat Source in Relations to Circulatory Support Systems (open access)

In- Phantom Dosimetry of 147 Pm2 0 3 Heat Source in Relations to Circulatory Support Systems

None
Date: January 1, 1969
Creator: Cross, F. T. & Sheppard, J. C.
Object Type: Report
System: The UNT Digital Library
Cost Function Studies for Power Reactors (open access)

Cost Function Studies for Power Reactors

A function to evaluate the cost of electricity produced by a nuclear power reactor was developed. The basic equation, revenue = capital charges + profit + operating expenses, was expanded in terms of various cost parameters to enable analysis of multiregion nuclear reactors with uranium and/or plutonium for fuel. A corresponding IBM 704 computer program, which will compute either the price of electricity or the value of plutonium, is presented in detail. (auth)
Date: November 1, 1961
Creator: Heestand, J. & Wos, L.T.
Object Type: Report
System: The UNT Digital Library
AN EVALUATION OF ADVANCED CONVERTER REACTORS. (open access)

AN EVALUATION OF ADVANCED CONVERTER REACTORS.

None
Date: January 1, 1969
Creator: unknown
Object Type: Report
System: The UNT Digital Library
EVALUATION OF ULTIMATE DISPOSAL METHOD FOR LIQUID AND SOLID RADIOACTIVE WASTES. PART I. INTERIM LIQUID STORAGE (open access)

EVALUATION OF ULTIMATE DISPOSAL METHOD FOR LIQUID AND SOLID RADIOACTIVE WASTES. PART I. INTERIM LIQUID STORAGE

As the first part of a study to evaluate the economics of the various steps leading to and including the permanent disposal of high-activity liquid and solid radioactive waste, costs of interim liquid storage of acid and alkaline Purex and Thorex wastes were estimated for storage times of 0.5 to 30 years. A 6- ton/day plant was assumed, processing 1500 tons/year of uranium converter fuel at a burnup of 10,000 Mwd/ton and 270 tons/year of thorium converter fuel at a burnup of 20,000 Mwd/ton. Tanks of Savannah River design were assumed, with stainless steel construction for acid wastes and mild steel construction for neutralized wastes. The operating cycle of each tank was assumed to consist of equal filling and emptying periods plus a full (or dead) period. With interim storage time defined as filling time plus full time, tank costs were minimum when full time was 40 to 70% of the interim storage time, using present worth considerations. For waste storage times of 0.5 to 30 years, costs ranged from 2.2 x 10/sup -3/ to 9.5 x 10/sup -3/ mill/kwh/sub e/ for acid wastes and from 1.7 x 10/sup -3/ to 5.1 x 10/sup -3/ mill/kwh/sub e/ for neutralized wastes. …
Date: August 22, 1961
Creator: Bradshaw, R.L.; Perona, J.J.; Roberts, J.T. & Blomeke, J.O.
Object Type: Report
System: The UNT Digital Library
AEC UNCLASSIFIED PROGRAMS. Quarterly Technical Progress Report, January-- March 1968 (open access)

AEC UNCLASSIFIED PROGRAMS. Quarterly Technical Progress Report, January-- March 1968

None
Date: July 1, 1968
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Discovery and History of $sup 252$Cf. (open access)

Discovery and History of $sup 252$Cf.

None
Date: October 31, 1969
Creator: Fields, P. R.
Object Type: Report
System: The UNT Digital Library
Diffusion of Slow Electrons in Gases (open access)

Diffusion of Slow Electrons in Gases

The properties of electrons in a gas and an external electric field, e.g., agitation velocity, free path, energy lost per collision, and collision cross sections, were determined for electrons of energy less than 2 ev in a large number of gases. The computations were made from previously measured values for Townsend's energy factor or the ratio of electron agitation energy to molecule thermal energy. Results are presented for hydrogen, nitrogen, carbon dioxide, methane, ethylene, cyclopropane, and argon. (D.L.C.)
Date: October 24, 1961
Creator: Forester, D. W. & Cochran, L. W.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The 1965 Arpa--Aec Joint Lightning Study at Los Alamos. Volume 3. Comparison of the Lightning Spectrum as Measured by All-Sky and Narrow-Field Detectors. Propagation of Light From Lightning Into All-Sky Detectors. (open access)

The 1965 Arpa--Aec Joint Lightning Study at Los Alamos. Volume 3. Comparison of the Lightning Spectrum as Measured by All-Sky and Narrow-Field Detectors. Propagation of Light From Lightning Into All-Sky Detectors.

None
Date: January 1, 1968
Creator: Connor, T. R. & Barasch, G. E.
Object Type: Report
System: The UNT Digital Library
NEUTRON CROSS-SECTION MEASUREMENTS. Summary Report, March 1, 1968-- February 28, 1969. (open access)

NEUTRON CROSS-SECTION MEASUREMENTS. Summary Report, March 1, 1968-- February 28, 1969.

None
Date: January 1, 1969
Creator: Fricke, M.P.; Lopez, W.M.; Costello, D.J.; Friesenhahn, S.J. & Carlson, A.D.
Object Type: Report
System: The UNT Digital Library
A Study of the Kinetic and Mechanical Properties of a Stabilized Beta Phase Plutonium Alloy (open access)

A Study of the Kinetic and Mechanical Properties of a Stabilized Beta Phase Plutonium Alloy

The elements Sn, Mg, Ti, Zr, Hf, Si, Cd, and U were alloyed with plutonium to determine their effect on stabilization of the beta phase. Zirconium was found to be the ' most effective. Kinetic studies were conducted on Pu-Zr alloys having 0.24, 0.65, and 1.7 at.% Zr contents. The beta to alpha transformation in the Pu-Zr alloys was somewhat similar to that in unalloyed plutonium. The main difference being that time, temperature, transformation curves of the alloys were shifted to the right as the zirconium concentration increased. It was determined that the amount of beta phase retained at room temperature increased as the zirconium concentration increased. The minimum amount of Zr needed to stabilize the beta phase of plutonium at room temperature was determined to be 2.0 at.%. A 2.4 at.% Zr addition stabilized the beta phase of plutonium at atmospheric pressure from room temperature to 265 deg C. During mechanical property testing it was determined that the stabilized beta Pu-2.4 at.% Zr alloy was brittle from room temperature to 230 deg C. Both tensile and compression strengths of the beta stabilized alloy were greater than the unalloyed beta phase of plutonium. A brittle-ductile transition was noted between 130 …
Date: January 1, 1962
Creator: Taylor, J. M.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
PATHFINDER ATOMIC POWER PLANT STEAM SEPARATOR DEVELOPMENT (open access)

PATHFINDER ATOMIC POWER PLANT STEAM SEPARATOR DEVELOPMENT

Development of a steam separator the Pathfinder Reactor is reported. A full-scale separator model was developed through the combination of scale-model testing and the application of principles associated with the existing theory of centrifugal separation. This model was put through full-scale air-water tests which led to modifications and a final design which meets Pathfinder requirements. Design data are included for the reactor and the steam separator. (J.R.D.)
Date: June 15, 1962
Creator: Kutsch, G. C.; Swanson, D. H. & Yant, H. W.
Object Type: Report
System: The UNT Digital Library
UNION CARBIDE DUAL-HEAD INSPECTION POST PROCESSOR. (open access)

UNION CARBIDE DUAL-HEAD INSPECTION POST PROCESSOR.

None
Date: January 1, 1969
Creator: Schellinger, W.V.
Object Type: Report
System: The UNT Digital Library