Geophysical and geochemical models of the Earth's shields and rift zones (open access)

Geophysical and geochemical models of the Earth's shields and rift zones

This report summarizes a collection of, synthesis of, and speculation on the geophysical and geochemical models of the earth's stable shields and rift zones. Two basic crustal types, continental and oceanic, and two basic mantle types, stable and unstable, are described. It is pointed out that both the crust and upper mantle play a strongly interactive role with surface geological phenomena ranging from the occurrence of mountains, ocean trenches, oceanic and continental rifts to geographic distributions of earthquakes, faults, and volcanoes. On the composition of the mantle, there is little doubt regarding the view that olivine constitutes a major fraction of the mineralogy of the earth's upper mantle. Studies are suggested to simulate the elasticity and composition of the earth's lower crust and upper mantle.
Date: February 25, 1977
Creator: Chung, D. H.
System: The UNT Digital Library
LMFBR safety program. Quarterly technical progress report, October-December 1976 (open access)

LMFBR safety program. Quarterly technical progress report, October-December 1976

Information related to sodium fires and fission products in LMFBR type reactors is presented concerning SOMIX code development; sodium jet dispersal tests; aerosol leakage; high temperature-concentration aerosol tests; aerosol source term size; and properties of high temperature fuel mixtures.
Date: February 25, 1977
Creator: Heisler, M. P.; Johnson, R. P.; Nelson, C. T.; Vaughan, E. U.; Guderjahn, C. & Eytel, L.
System: The UNT Digital Library
Tank study committee report (open access)

Tank study committee report

Six major problem areas have surfaced in the past twenty-five years concerning the use of plutonium tankage. The most significant of these involves the use of borosilicate glass as a neutron absorber. Approximately thirty recommendations and criteria resulted from a study of these problem areas. Not all of the criteria and recommendations are unanimously supported by all members of the committee. The committee agrees that problem areas that can be handled on a short-term basis are being pursued expeditiously. Most of the criteria presented will apply to new tankage to be installed. The committee also noted fourteen accomplishments in the last 1/sup 1///sub 2/ years directed to the application of the criteria.
Date: February 25, 1977
Creator: unknown
System: The UNT Digital Library
Building 003 decontamination and disposition. Final report (open access)

Building 003 decontamination and disposition. Final report

The decontamination and disposition (D and D) of the contaminated facilities in Building 003 are complete. The Hot Cave, the building radioactive exhaust system, the radioactive liquid waste system, and the fume hoods were removed. The more significant D and D activities are summarized, special techniques are noted, and problems and their resolution are discussed. Results of the radiological monitoring are presented. (auth)
Date: February 25, 1976
Creator: Ureda, B. F.
System: The UNT Digital Library
Development of optimum conditions for drying ion exchange resin in a fluidized bed dryer (open access)

Development of optimum conditions for drying ion exchange resin in a fluidized bed dryer

Drying of Amberlite IRC-72 ion exchange resin in a fluidized bed dryer was investigated. Resin water content was measured as a function of drying time for various drying temperatures, bed loadings, and air flow rates. An incomplete equation for the induction period and complete model for constant rate drying were developed. Further development of an induction period model requires installation of an accurate air flow measurement device. A drying temperature of 200/sup 0/F results in the shortest drying time with no resin damage. Optimization of the process with regard to other process parameters requires development of a complete drying model. (auth)
Date: February 25, 1976
Creator: Vora, J. N.; Michaels, S. L. & Stiros, P.
System: The UNT Digital Library
DT fusion neutron irradiation of ANL electron microscopy samples, LLL ''tritium-tricked'' niobium, LLL Al/sub 2/O/sub 3/, SiC, and B/sub 4/C, and an LLL sputtering experiment (open access)

DT fusion neutron irradiation of ANL electron microscopy samples, LLL ''tritium-tricked'' niobium, LLL Al/sub 2/O/sub 3/, SiC, and B/sub 4/C, and an LLL sputtering experiment

The experimental procedure for irradiating the above specimens is given. No results are presented. (MOW)
Date: February 25, 1976
Creator: MacLean, S. C.
System: The UNT Digital Library
KEWB facilities decontamination and disposition. Final report (open access)

KEWB facilities decontamination and disposition. Final report

The decontamination and disposition of the KEWB facilities, Buildings 073, 643, 123, and 793, are complete. All of the facility equipment, including reactor enclosure, reactor vessel, fuel handling systems, controls, radioactive waste systems, exhaust systems, electrical services, and protective systems were removed from the site. Buildings 643, 123, and 793 were completely removed, including foundations. The floor and portions of the walls of Building 073 were covered over by final grading. Results of the radiological monitoring and the final survey are presented. 9 tables, 19 figures. (auth)
Date: February 25, 1976
Creator: Ureda, B. F.
System: The UNT Digital Library
Nuclear technician manpower in the Western United States (open access)

Nuclear technician manpower in the Western United States

None
Date: February 25, 1974
Creator: unknown
System: The UNT Digital Library
Costs of magnets for large fusion power reactors: Phase I, cost of superconductors for dc magnets (open access)

Costs of magnets for large fusion power reactors: Phase I, cost of superconductors for dc magnets

None
Date: February 25, 1972
Creator: Powell, J.R.
System: The UNT Digital Library
Effects of random errors in coil locations in a high-field superconducting accelerator (open access)

Effects of random errors in coil locations in a high-field superconducting accelerator

None
Date: February 25, 1972
Creator: Parzen, G.
System: The UNT Digital Library
Dimensional Stability of Heavy Walled Incoloy 800 Cladding Tubes, Data (open access)

Dimensional Stability of Heavy Walled Incoloy 800 Cladding Tubes, Data

The effects of SCB coating, thermal shock and hermal scak on the dimensional stability of four heavy walled Incolcy 800 cladding tubes, ranging in thickness from 20 to 44 mils, was investigated. The results of the study were summarized in TI-759-240-029. This report serves as a repository for the detailed data and profilometer traces used in the preparation of that summary.
Date: February 25, 1971
Creator: Roberts, J.T.
System: The UNT Digital Library