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PREPARATION OF THORIUM OXIDE FROM ORNL THOREX THORIUM NITRATE
Thorium nitrate, removed from irradiated Th metal processed in the Thorex pilot plant, was converted to the oxide and then to the fluoride in one pilot-plant-scale and two laboratory-scale runs. Activity distributions, decontamination factors, and safety of the process are treated. (D.L.C.)
Date:
February 13, 1957
Creator:
McDuffee, W.T. & Yarbro, O.O.
Object Type:
Report
System:
The UNT Digital Library
METALLOGRAPHIC EXAMINATION OF ORNL NO. 1, SHE NO. 2
Small Heat Exchanger ORNL No. I, type SHE No. 2, was removed from test stand B after 2071 hours of operation; 1041 hours were under 4 T conditions. The heat exchanger contatned 20 Inconel tubes having an outside diameter of 0.25 in. and a wall thickness of 0.025 in. The outside of these tubes was exposed to the fluoride mixture NaF contained NaK (44% Na--56% K). During o degradation t T conditions, the fluoride temperature entering the heat exchanger was 1310 tained F and on leaving was 1235 tained F. The temperature of the NaK entering the heat exchanger was 1050 tained F and at the exit was 1290 tained F. During isothermal operation, the temperature of both the NaK and fluoride circuits was 1300 tained F. Thirtysix termperature transitions from isothermal to o degradation t T conditions were made during the course of operation. An examination of the resistance heater used in conjunction with this heat exchanger also was made: the results are reported. (auth)
Date:
February 1, 1957
Creator:
VanCleve, J. E.; DeVan, J. H. & Crouse, R. S.
Object Type:
Report
System:
The UNT Digital Library
Decay Properties of Pu235, Pu237, and a New Isotope Pu233
None
Date:
February 1, 1957
Creator:
Thomas, T. Darrah; Vandenbosch, Robert; Glass, Richard A. & Seaborg, Glenn T.
Object Type:
Report
System:
The UNT Digital Library
A STUDY OF ERROR EFFECTS IN MEASURING CYCLIC-TEMPERATURE HEAT-TRANSFER COEFFICIENTS
None
Date:
February 15, 1957
Creator:
Dingee, D.A. & Chastain, J.W.
Object Type:
Report
System:
The UNT Digital Library
Neutron-Induced Fission Cross Section of Pu$sup 240$
The fission cross section of Pu/sup 240/ was determimed from Pu/sup 240/U/sup 235/ ratio for neutron energies between threshold and 8.1 Mev. U/sup 235/ cross section values were essentially those given in a recent compilation in ''Progress in Nuclear Energy.'' The technique used was to mount the two foils back-to-back in a double ionization chamber and to irradiate them in a neutron flux of variable energy. (A.C.)
Date:
February 1, 1957
Creator:
Henkel, R. L.; Nobles, R. A. & Smith, R. K.
Object Type:
Report
System:
The UNT Digital Library
SPECTROGRAPHIC ANALYSIS OF NORMAL HUMAN TISSUE FROM DALLAS, TEXAS
None
Date:
February 28, 1957
Creator:
Tipton, I.H.; Cook, M.J.; Steiner, R.L.; Foland, J.M.; McDaniel, K.K. & Fentress, S.D.
Object Type:
Report
System:
The UNT Digital Library
CONTROL SYSTEM FOR HRT COOLING WATER
None
Date:
February 11, 1957
Creator:
Moore, R.L.
Object Type:
Report
System:
The UNT Digital Library
RADIOLOGICAL PHYSICS DIVISION SEMIANNUAL REPORT FOR JULY THROUGH DECEMBER 1956
None
Date:
February 1, 1957
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
ZIRCONIUM HAZARDS RESEARCH. Progress Report No. 1 for September 1, 1956 to February 28, 1957
None
Date:
February 28, 1957
Creator:
Herickes, J.A. & Richardson, P.A.
Object Type:
Report
System:
The UNT Digital Library
Fuel costs in batch- and continually-processed homogeneous reactors
None
Date:
February 1, 1957
Creator:
Kasten, P. R. & Aven, R. E.
Object Type:
Report
System:
The UNT Digital Library
PHYSICS DIVISION SUMMARY REPORT FOR SEPTEMBER THROUGH DECEMBER 1956
None
Date:
February 1, 1957
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
CALCULATION OF WALL-SCATTERED GAMMA RADIATION ESCAPING THROUGH A SHIELD OPENING--APPLICATION TO THE HRT
None
Date:
February 19, 1957
Creator:
Claiborne, H.C. & Fowler, T.B.
Object Type:
Report
System:
The UNT Digital Library
Effects of High Temperature on the Performance of Alnico V and Alnico VI Permanent Magnets
The effect of temperatures up to 600 d C and the combined effect of temperature and vibration on the magnetic performance of Alnico V and Alnico VI magnet were investigated. (auth)
Date:
February 1, 1957
Creator:
Roberts, W.H. & Mitchell, D.L.
Object Type:
Report
System:
The UNT Digital Library
Effect of Pressure Differentials on Deflection of the Outer Fuel Plates of Brazed APPR Fuel Elements
None
Date:
February 1, 1957
Creator:
Erwin, J. H. & Beaver, R. J.
Object Type:
Report
System:
The UNT Digital Library
STUDIES OF MIXING IN THE LOWER PLENUM OF A QUARTER-SCALE FLOW MODEL OF THE PWR REACTOR
None
Date:
February 22, 1957
Creator:
Hazard, H.R. & Rotkowitz, A.
Object Type:
Report
System:
The UNT Digital Library
20-MW Dâ‚‚O-Moderated Experimental Boiling Water Reactor Design Studies
None
Date:
February 1957
Creator:
Iskenderian, H. P.
Object Type:
Report
System:
The UNT Digital Library
EFFECTIVENESS OF REACTOR CONTROL ABSORBERS SENSITIVE TO NEUTRONS OF ALL ENERGIES
None
Date:
February 1, 1957
Creator:
Nowak, M.J.
Object Type:
Report
System:
The UNT Digital Library
THERMAL CONDUCTIVITY OF BERYLLIUM: LITERATURE SURVEY
None
Date:
February 12, 1957
Creator:
Powers, W.D.
Object Type:
Report
System:
The UNT Digital Library
Uranium Alloy Newsletter
None
Date:
February 1, 1957
Creator:
Epremian, E. ed.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
INERT ATMOSPHERES IN NON-VACUUM CHAMBERS FOR WELDING APPLICATIONS
None
Date:
February 1, 1957
Creator:
Leonard, W.J.
Object Type:
Report
System:
The UNT Digital Library
ENVIRONMENTAL RADIOACTIVITY AT ARGONNE NATIONAL LABORATORY. Report for the Year 1955
None
Date:
February 1, 1957
Creator:
Sedlet, J.
Object Type:
Report
System:
The UNT Digital Library
TIME BEHAVIOR OF FUEL CONCENTRATIONS IN SINGLE-REGION REACTORS CONTAINING U- 233, U-235, Th-232 AND FISSION PRODUCT POISONS
None
Date:
February 26, 1957
Creator:
Gilbert, N. & Kasten, P. R.
Object Type:
Report
System:
The UNT Digital Library
EXTRACTION OF METAL IONS WITH Di-2-ETHYLHEXYL PHOSPHORIC ACID
None
Date:
February 1, 1957
Creator:
White, J.C.
Object Type:
Report
System:
The UNT Digital Library
High-Temperature Oxidation and Contamination of Niobium
None
Date:
February 19, 1957
Creator:
Klopp, W. D.; Sims, C. T. & Jaffee, R. I.
Object Type:
Report
System:
The UNT Digital Library