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1,627
PHYSICS DIVISION SEMIANNUAL REPORT FOR NOVEMBER 1957 THROUGH APRIL 1958
None
Date:
May 29, 1958
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
PHYSICS DIVISION SUMMARY REPORT FOR AUGUST 1954 THROUGH FEBRUARY 1955
None
Date:
May 1, 1956
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
PHYSICS DIVISION SUMMARY REPORT FOR MARCH AND APRIL 1955
None
Date:
May 1, 1956
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
PROBLEMS OF LEACHING AND DIGESTION OF URANIFEROUS SLAGS AND ALLOYS. Progress Report No. 12 for April 1952
None
Date:
May 20, 1952
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Process tube purging during pile operation
None
Date:
May 28, 1952
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Progress Report No. 54 for the Period through April 30, 1959
This is the fifty-fourth progress report of the Laboratory for Nuclear Science at the Massachusetts Institute of Technology. Progress reported covers the period for Physics and Chemistry through April 30,1959. Progress is reported on: (1) Chemistry of the fission elements group, (2) Nuclear chemistry (inorganic) group, (3) Nuclear chemistry (organic) group, (4) Cosmic ray group, (5) High energy accelerator physics group, (6) Bubble chamber group, (7) Liner acceleratory group, (8) Rockefeller generator group, (9) ONR generator group, (8) Radioactivity group, (9) Cyclotron group, (10) Theoretical group, (11) Personnel listing.
Date:
May 1, 1959
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
QUARTERLY SUMMARY RESEARCH REPORT IN METALLURGY FOR OCTOBER, NOVEMBER, DECEMBER 1953
Progress is reported on the following investigations: separation of Nb and Ta by solvent extraction; separation of Ti and Nb with TBP, and of Hf from Zr with methyl ethyl ketone; preparation of HfF/sub 4/, CeF/sub 3/, LaF/sub 3/, ThCl/ sub 4/, and V chlorides; preparation of Ce, La, V, Nb, anf Hf; phase studies of U- -Zr, U--Ag, U--Nb, V--Al, V--Ta, Th--Mg, Zr - Zn, and Ta alloys; corrosion of high-melting metals and alloys by liquid U-Cr and Mg--Th alloys; casting U into U- Zr alloy cans; coating and electroplating of U; reactions of U with Al-Si alloys at high temperatures; corrosion of U - Zr--Nb alloys in water; crystal structure of sodium tungsten bronze; physical properties of Dy; and phase studies of CaO- CaF/sub 2/ systems. (C.W.H.)
Date:
May 25, 1954
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
RADIOLOGICAL PHYSICS DIVISION SEMIANNUAL REPORT FOR JULY THROUGH DECEMBER 1958
ABS>Progress is reported in the following studies: the decay time of irradiated scintillation solutions; the performance of twin scintillation detectors for measuring neutrons in the presence of gamma radiation; the measurement of cosmic ray neutron background with a twin scintillation fast neutron spectrometer; the diffusion and absorption of gases in plastic-walled ionization chambers; calculations of the drift velocity and the energy distribution of electrons of helium, neon, argon, and nitrogen under the action of a uniform electric field; the development of equipment for tracer studies of atmospheric diffusion; the deposition and retention of isotopes of actinium, radon, radium, and thorium in bone; the effects of age on calcium metabolism in bone,; the development of a mathematical theory of the retention of radioactive elements by bone; the development of a reproducible method for directly determining individual alpha activities in mixtures; the design of a flow-gas Geiger counter; a survey of the natural radioactivity of a number of municipal water supplies; measurements of activity in individuals by means of the human spectrometer; measurements of the cesium-l37 content of human subjects; measurements of the atmospheric content of cesium-137 as a function of time; a comparison of background radioactivity at the Laboratory and a …
Date:
May 1, 1959
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
RADIUM AND MESOTHORIUM POISONING AND DOSIMETRY AND INSTRUMENTATION TECHNIQUES IN APPLIED RADIOACTIVITY. Annual Progress Report
The study of the toxicity of radium and radium decay products was continued. Special emphasis was placed on the acquisition of data on patients selected by record of exposure. Data are tabulated on the radium body burden of about 40 individuals. About half the measurements were made on living persons and about half on tooth or bone specimens. Case history summaries and all available medical data are summarized for persons under study. An investigation of the gamma shielding properties of dunite was continued. Design modifications and calibration of radiation detection instruments are discussed. (For preceding period see AECU-3504.) (C.H.)
Date:
May 1, 1958
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Reactor Safety Bibliography. Selected Unclassified References
This is a revision of the Reactor Safety Bibliography prepared for the Reactor Safety Conference held at New York City on Oct. 31, 1957. It is not an exhaustive review of the published material on reactor safety but includes 223 selections from reports and published literature as a guide to some of the more recent and relevant material. (J.E.D.)
Date:
May 1, 1957
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Reactor Steam Power Plants: Economics
Economic study covering several classes of cycles of reactor steam power plants.
Date:
May 25, 1954
Creator:
unknown
Object Type:
Report
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
Object Type:
Report
System:
The UNT Digital Library
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
Object Type:
Report
System:
The UNT Digital Library
Report of the Sodium Heavy-Water Reactor Task Force: May 1959
"The sodium-heavy-water reactor concept was evaluated on the basis of (1) its technical feasibility and (2) its potential for the economical production of electric power."
Date:
May 1959
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Savannah River Plant 100 Area reactors monthly report, April 1956
This monthly report details activities of the Manufacturing Division for the month of April 1956.
Date:
May 15, 1956
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Savannah River Plant, Works Technical Department progress report, April 1959
This progress report by the Atomic Energy Division of the Savannah River Plant covers: Reactor Technology; Separation Technology; Engineering Assistance; Health Physics; and General Laboratory Work.
Date:
May 18, 1959
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
SEMI-ANNUAL SUMMARY RESEARCH REPORT IN METALLURGY FOR JULY-DECEMBER, 1955
None
Date:
May 29, 1956
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
TECHNICAL PROGRESS REPORT. PART I. HIGHSPEED COMPUTER PROGRAM. PART II. MATHEMATICAL METHODS. PART III. SWITCHING CIRCUIT THEORY. PART IV. ILLIAC USE AND OPERATION-GENERAL LABORATORY INFORMATION
Work on circuits for high-speed computers, iterative methods for linear equations, hydrodynamic flow problems, and switching circuit theory are reported. The operation and use of ILLIAC for May are summarized. (For preceding period see AECU-3760.) (T.R.H.)
Date:
May 1, 1958
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Valve Operating System System Description No. 10
A description is given of the valve operating system for the PWR. The valves served by this system are a component pant of the following systems: reactor coolant system; pressurizer and pressure relief system; coolant discharge and vent system; and failed element detection and location system. (W.L.H.)
Date:
May 1, 1957
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library