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Report for General Research for December 11, 1950 to April 2, 1951. (Radium Volume)
The work presented in this volume concludes the research on methods for the recovery of purified radium from K-65 residues. The completion of a final report and an engineering study of the proposed process are underway. The preliminary treatment of the K-65 residues with 15% sodium hydroxide was checked and found to give 84% removal of lead and 40% removal of silica. The combined sodium hydroxide, sodium carbonate treatment for removing additional amounts of lead and achieving a preliminary conversion of the radium-barium silfates to carbonates has been studied at 170 deg C under pressure as well as at 100 deg C as previously used. A marked improvemont was found with the use of higher temperatures. Alternate methods were studied for removing the residual lead content in place of precipitation with hydrogen sulfide. Precipitation of insoluble hydroxides was found to remove about 90% of the lead present. The over-all recovery of radium in the residues treatment has been checked and found to be better than 98%. The work on the separation of radium from barium by fractional precipitation of the chromates has shown that in actual practices the results are in good agreement with the results calculated from the observed …
Date:
May 1, 1951
Creator:
unknown
System:
The UNT Digital Library
Materials Testing Reactor Project Handbook
None
Date:
May 1, 1951
Creator:
Buck, J. H. & Leyse, C. F.
System:
The UNT Digital Library
Life Test of Liquid Metal Lubricated Thrust Bearing
None
Date:
May 1, 1951
Creator:
Vail, D. B.
System:
The UNT Digital Library
The Behavior of Graphite Under Alternating Stress
This report is based on studies conducted for the Atomic Energy Commission.
Date:
May 1, 1951
Creator:
Green, L.
System:
The UNT Digital Library
NUCLEAR SHELL STRUCTURE AND $beta$-DECAY I. ODD A NUCLEI II. EVEN A NUCLEI
A systematics is given of all transitions for odd A nuclei for which sufficiently reliable data are available. The allowed or forbidden characters of the transitions are correlated with the positions of the initial and final odd nucleon groups in the nuclear shell scheme. The nuclear shells show definite characteristics with respect to parity of the ground states. The latter is the same as the one obtained from known spins and magnetic moments in a one-particle interpretation.
Date:
May 1, 1951
Creator:
Mayer, M.G.; Moszkowski, S.A. & Nordheim, L.W.
System:
The UNT Digital Library
ENGINEERING PROPERTIES OF HIGH-DENSITY CONCRETES
None
Date:
May 1, 1951
Creator:
Snyder, M.J.; Burkart, C.A. & Clegg, J.W.
System:
The UNT Digital Library
Report for General Research for December 11, 1950 to April 2, 1951. (Actinium Volume)
Studies were continued on processes for the separation and purification of Ac/sup 227/ from neutron-irradiated Ra and for the deposition of Ac on various metal surfaces. (For preceding period see MLM-519.) (C.W.H.)
Date:
May 1, 1951
Creator:
unknown
System:
The UNT Digital Library
Semi-annual progress report in metallurgy for the period October 1, 1950- March 31, 1951
None
Date:
May 1, 1951
Creator:
Wilhelm, H. A.
System:
The UNT Digital Library
Analyses required for the slag and crucible recovery program
This summary from the analytical research section, May 1, 1951, briefly describes the analytical method to be utilized in the recovery of plutonium from crucibles program.
Date:
May 1, 1951
Creator:
Groot, C. & Hill, O.F.
System:
The UNT Digital Library
Analysis of Heat Transfer, Burnout, Pressure Drop and Density Date for High Pressure Water
This report is the descriptive summary Analysis of Heat Transfer, Burnout, Pressure Drop and Density Date for High Pressure Water.
Date:
May 1, 1951
Creator:
Jens, W. H. & Lottes, P. A.
System:
The UNT Digital Library