States

Solid residue (open access)

Solid residue

This document is a letter written February 24, 1944, concerning solids found when evaporating water from the Columbia River.
Date: February 24, 1944
Creator: Greenewalt, C. H.
Object Type: Report
System: The UNT Digital Library
C-616 UF$sub 6$ HYDROLYSIS FUMES (open access)

C-616 UF$sub 6$ HYDROLYSIS FUMES

Experiments were carried out to determine how fast the concentration of suspended material decreases in fumes produced by the hydrolysis of UF/sub 6/ vapor in damp air. The rate of aggregation is a function chiefly of the number of particles per unit gas volume, but depends also on the chemical composition, size and shape of the particles, the temperature and pressure, and the degree of agitation. The rate of settling depends on the weight and shape of the particles and the viscosity of the gas. (W.L.H.)
Date: January 24, 1945
Creator: Fisher, M. & Cines, M.R.
Object Type: Report
System: The UNT Digital Library
METALLURGY DIVISION PROGRESS REPORT FOR MARCH 17 TO MARCH 24, 1945 (open access)

METALLURGY DIVISION PROGRESS REPORT FOR MARCH 17 TO MARCH 24, 1945

None
Date: March 24, 1945
Creator: Foote, F.; Brugmann, E. W. & Chapin, J. H.
Object Type: Report
System: The UNT Digital Library
Preliminary Investigation Employing a Rotating Kiln for the Preparation of RF4 by Reaction of RO3 and "Freon-114" (C2F4Cl2) at Elevated Temperatures (open access)

Preliminary Investigation Employing a Rotating Kiln for the Preparation of RF4 by Reaction of RO3 and "Freon-114" (C2F4Cl2) at Elevated Temperatures

None
Date: March 24, 1945
Creator: Kraus, C. A.
Object Type: Report
System: The UNT Digital Library
Report on production test No. 313-69-M: Effect of straightening rods before outgassing upon warped slugs (open access)

Report on production test No. 313-69-M: Effect of straightening rods before outgassing upon warped slugs

Strains are introduced into bars by cold working in the straightening operation. If no treatment is applied to relieve the strains after the straightening operation, it is conceivable that they may be relieved in the canning process and cause warped slugs. The purpose of this test was to see if fewer non-seats would occur among slugs machined from bars that were outgassed after straightening. Seven hundred and thirty-five slugs from bars that were straightened before outgassing were caned by the standard procedure. One percent non-seats and 1.9% wrinkled cans were noted at the canning pot. It is recommended that all rods which are to be straightened be passed through the straightening operation before outgassing.
Date: April 24, 1945
Creator: Eubank, L. D.
Object Type: Report
System: The UNT Digital Library
Technical Department report on Production Test No. 313-70-M: Behavior of Paul and Beekman cans washed and unwashed (open access)

Technical Department report on Production Test No. 313-70-M: Behavior of Paul and Beekman cans washed and unwashed

None
Date: April 24, 1945
Creator: Eubank, L. D.
Object Type: Report
System: The UNT Digital Library
The Melting and Casting of Uranium in Sulfide Crucibles (open access)

The Melting and Casting of Uranium in Sulfide Crucibles

Uranium was successfully cast at temperatures as high as 1900 to 2000 deg C in crucibles made from CeS, CeS/sub 1.38/, ThS, ThS/sub 1.75/, and ThU/sub 0.7/S/sub 2/ with the sulfur pickup in all cases less than 0.15 wt.%, in some cases at low temperatures being less than 0.005%. A summary of actual sulfur absorption for different experimental temperatures and crucible types is given. The effect of the molten mixture of U and UBr/sub 3/(Br/U =2) upon some sulfide refractories was investigated. The results indicate that only ThS/sub 2/ and divalent sulfides like ThUS/sub 2/, US, ThS, etc., would withstand the U--UBr/sub 3/ mixture. Uranium may be separated from metal salt mixtures (CaCl/sub 2/, SrBr/ sub 2/, BaI/sub 2/, etc.) by distillation of the salt and fusion of the U in a sulfide crucible. (auth)
Date: July 24, 1945
Creator: Eastman, E. D.; Brewer, Leo; Bromley, LeRoy A.; Gilles, Paul W. & Lofgren, Norman L.
Object Type: Report
System: The UNT Digital Library
Supplementary Report on the Preparation of Large Magnesia Crucibles. Supplement to Report CT-3373 (open access)

Supplementary Report on the Preparation of Large Magnesia Crucibles. Supplement to Report CT-3373

None
Date: April 24, 1946
Creator: Cunningham, F.; Lundell, K. & Zais, A.
Object Type: Report
System: The UNT Digital Library
100 Areas: (For technical progress letter No. 98), May 14--May 20 (open access)

100 Areas: (For technical progress letter No. 98), May 14--May 20

This technical progress report details 100 Area activities for the time period of May 14 through May 20, 1946.
Date: May 24, 1946
Creator: Jordan, W. E.
Object Type: Report
System: The UNT Digital Library
Hanford Engineer Works technical progress letter No. 146, April 13--19 (open access)

Hanford Engineer Works technical progress letter No. 146, April 13--19

Further data on the changes in length and weight of expanded graphite samples which were exposed in the pile in atmospheres of oxygen, carbon dioxide, and helium show that all three gases produce roughly the same shrinkage and weigh loss. This result is unexpected in that there is no precedent for such behavior in a helium atmosphere; however, it was found that water vapor had entered the helium stream by some unknown means and had condensed on the plugs at the inlet end of the tube. This opens the possibility that the graphite in the helium-filled tube was attacked by the reaction C + H{sub 2}O = CO + H{sub 2}. This experiment is to be repeated. The data are tabulated in this report. The expansion of the graphite before the experimental exposure was in all cases very nearly 0.6% per 1000 MD/CT. Both the D and the F Piles were scrammed by a power surge on April 14. Eight of the vertical rods did not drop into the D Pile. These and subsequent rod difficulties delayed the start up to such an extent that the reactivity losses associated with the build up of xenon poison and the cooling of …
Date: April 24, 1947
Creator: unknown
Object Type: Report
System: The UNT Digital Library
River water sampling Columbia and Yakima River water, T tests (open access)

River water sampling Columbia and Yakima River water, T tests

Data acquired form the sampling of Yakima River water-t Tests is presented. The sampling took place on June 24, 1947. The samples were analyzed for ph value, alkalinity, chlorine, harness, NH(sub 3), NO(sub 3), biological oxygen demand, dissolved oxygen, and turbidity.
Date: July 24, 1947
Creator: Butler, B. F.
Object Type: Report
System: The UNT Digital Library
River water sampling Columbia River water: Analysis of variance (open access)

River water sampling Columbia River water: Analysis of variance

Data acquired from the sampling of Columbia River water July 24, 1947, is presented. The water was analyzed for temperature, hardness, turbidity, dissolved oxygen, chlorine, ph value, NO{sub 3}, NH{sub 3}, total solids, and alkalinity.
Date: July 24, 1947
Creator: Butler, B. F.
Object Type: Report
System: The UNT Digital Library
River water sampling, Yakima River water: Analysis of variance (open access)

River water sampling, Yakima River water: Analysis of variance

Data acquired form the sampling of Yakima River water July 24, 1947, is presented. The water was analyzed for hardness, turbidity, dissolved oxygen, ph value, alkalinity, chlorine, NH(sub 3), NO(sub 3), and total solids.
Date: July 24, 1947
Creator: Butler, B. F.
Object Type: Report
System: The UNT Digital Library
River water sampling Yakima River water, work sheets (open access)

River water sampling Yakima River water, work sheets

Data acquired from the sampling of Yakima River water on June 24, 1947, is presented. The water was analyzed for temperature, hardness, turbidity, dissolved oxygen, chlorine, alkalinity, NO(sub 3), NH(sub 3), and ph value.
Date: July 24, 1947
Creator: Butler, B. F.
Object Type: Report
System: The UNT Digital Library
Discussion of questions concerning specification letters 234-1, 236-1, 234-2 and 234-3 (open access)

Discussion of questions concerning specification letters 234-1, 236-1, 234-2 and 234-3

This memorandum confirms previous verbal answers to the questions presented by the 234-5 Design group for clarification regarding Specification Letters 234-1, 235-1, 234-2 and 234-3. Testing, plutonium concentration in air, equipment modifications and process control are among items addressed.
Date: November 24, 1947
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Degradation of Isotopic Lactate and Acetate (open access)

Degradation of Isotopic Lactate and Acetate

A scheme of glucose degradation has been validated by the use of intermediates of known isotopic composition. In this scheme: glucose {yields} lactic acid {yields} CO{sub 2} (C-3,4) + acetic acid {yields} CO{sub 2} (C-2,5) + acetone {yields} iodoform (C-1,6) + acetate (C-1,6; 2,5), it was found that (a) in the oxidation of lactic acid, approximately 4.7% of the acetic acid was oxidized to CO{sub 2}; and (b) under the conditions prescribed, BaCO{sub 3} from the degradation of Ba acetate contained approximately 1.5% of the activity of the methyl group.
Date: February 24, 1948
Creator: Aronoff, S.; Haas, V. A. & Fries, B. A.
Object Type: Article
System: The UNT Digital Library
The Half-Lives of Aluminum25 and Aluminum26 (open access)

The Half-Lives of Aluminum25 and Aluminum26

The availability of separated isotopes of Mg makes it easy to determine the half life of Al{sup 26}, a member of the Wigner series which has long been suspected to have a half life of approximately 7 seconds, but which has not been confirmed because of the masking 7 second activity of Al{sup 26}. Mg{sup 24}, Mg{sup 25} and Mg{sup 26} (in the form of MgO) have been bombarded with protons from the Berkeley Linear Accelerator, with the following results: (1) Mg{sup 24} yields an activity of approximately 23 seconds half life, presumably due to Na{sup 21} from the reaction Mg{sup 24}(p,a)Na{sup 21}; (2) the Mg{sup 25} yields an activity of approximately 8 seconds half life, which they assign to the reaction Mg{sup 25}(p,n)Al{sup 25}; and (3) The Mg{sup 26} yields an activity of approximately 6 seconds half life, assigned to Al{sup 26} according to a similar reaction. It seems probable therefore that the 7 seconds half life normally given for Al{sup 26} is a mixture of these two activities.
Date: April 24, 1948
Creator: Bradner, Hugh & Gow, J.D.
Object Type: Report
System: The UNT Digital Library
High Voltage Pulsar For 184-inch Cyclotron Electric Deflector (open access)

High Voltage Pulsar For 184-inch Cyclotron Electric Deflector

This paper describes a high voltage pulse generator developed to deflect the beam of the 184-inch cyclotron at Berkeley, California. The apparatus develops a deflecting potential of 200 kilovolts that rises from 10% to 90% of peak value in 0.1 microseconds. The unit employs two similar 100 kilovolt water cooled pulse transformers connected symmetrically about ground to the electric deflector bars. Water-cooled General Electric pulse capacitors are discharged through the two turn primary windings of the pulse transformers by triggering a battery of 16 paralleled Kuthe 5022 hydrogen thyratrons. Output voltages are developed across the 17 turn secondary winding of the pulse transformer. The transformer is mounted in an oil filled lucite case that provides both insulation and compact design.
Date: April 24, 1948
Creator: Kerns, Q. A.; Baker, W. R.; Edwards, R. F. & Farly, G. M.
Object Type: Report
System: The UNT Digital Library
Medical and Health Divisions quarterly report, January, February, March 1948 (open access)

Medical and Health Divisions quarterly report, January, February, March 1948

This quarterly progress report describes four programs namely (1) The Metabolic Properties of Plutonium and Allied Materials (2) Biological studies of radiation effects, (3) Biological effects of radiation from external and internal sources, and (4) Health Physics and Chemistry. Progress for each program has been separately indexed and abstracted for the database.
Date: May 24, 1948
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Graphite contaminant tests for DR&H piles (C-206A, HW24, C-165A, HW24) (open access)

Graphite contaminant tests for DR&H piles (C-206A, HW24, C-165A, HW24)

This report outlines plans for tests of the graphite stack during lay up in the pile structures. Measurements are planned upon completion of layers 20, 60, and 102, which will require not more than 16 hours each. The test method will require restriction of Construction personnel from the areas immediately adjacent to the pile. Precise boundaries will be set up in collaboration with H I Division personnel prior to the test.
Date: June 24, 1948
Creator: Burns, J. A.
Object Type: Report
System: The UNT Digital Library
Shielding studies at Mound Laboratory (open access)

Shielding studies at Mound Laboratory

Neutron shielding is done to protect workers from excessive radiation and to keep a low neutron background for research in neutron counting. To meet health standards the total neutron flux allowable is 150 n/cm/sec per eight hours, or 50 n/cm/sec per twenty-four hours. Literature values for the absorption coefficients of paraffin and water are considered, and some experimental data is presented which approximately confirm them. A description of barriers at Mound Laboratory is given. Plans for future work on slowing-down of fast nautrons and capture of slow neutrons are included.
Date: August 24, 1948
Creator: Bradley, J.E. & Richmond, J.L.
Object Type: Report
System: The UNT Digital Library
Additional design tasks for 234-5 Project (open access)

Additional design tasks for 234-5 Project

None
Date: September 24, 1948
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Hanford Works monthly report, August 1948 (open access)

Hanford Works monthly report, August 1948

This document details activities at the Hanford Works during the month of August 1948. (JL)
Date: September 24, 1948
Creator: Muir, R. C.
Object Type: Report
System: The UNT Digital Library
RECOVERY OF URANIUM FROM GRAPHITE SHAPES BY ELECTROLYTIC GRAPHITE DISINTEGRATION IN NITRIC ACID (open access)

RECOVERY OF URANIUM FROM GRAPHITE SHAPES BY ELECTROLYTIC GRAPHITE DISINTEGRATION IN NITRIC ACID

None
Date: February 24, 1949
Creator: Fromm, L.W.
Object Type: Report
System: The UNT Digital Library