Angular Distribution of Fragments from Neutron-Induced Fission (open access)

Angular Distribution of Fragments from Neutron-Induced Fission

The angular distribution of fission fragments from the neutron-induced fission of several isotopes has been studied. Distributions were observed for thermal neutrons on U233 and U235, Lady Godiva leakage neutrons on U235 and U238, and 14 Mev neutrons on U233, U235, U238, Th232, and Np237. No anisotropy was observed for thermal neutron fission, whereas for Lady Godiva neutrons and 14 Mev neutrons the probability of fission along the axis of the neutron beam was determined to be higher than for fission in the orthogonal direction. Experimental results are given on pages 10 and ll.
Date: May 7, 1953
Creator: Brolley, John Edward, 1919- & Dickinson, W. C.
System: The UNT Digital Library
Beta In Line Monitor for RCU Stream (open access)

Beta In Line Monitor for RCU Stream

Interest has been expressed in continuously monitoring the beta activity of the uranyl nitrate solution pumped to the RCU receiver tank, to facilitate operation at higher flow rates and with younger feeds. A beta scintillation detector has been developed which should make this feasible, and it is proposed that it be tested on stream for this use.
Date: May 1953
Creator: Leboeuf, M. B. & Connally, R. E.
System: The UNT Digital Library
Chemical Engineering Division Summary Report : January, February, And March 1953 (open access)

Chemical Engineering Division Summary Report : January, February, And March 1953

Dissolution of the large number of samples obtained from the natural uranium blanket of the Experimental Breeder Reactor after approximately 485,000 kw.-hr. of operation has been completed, and analysis of these samples for uranium consumed and plutonium formed is well along. An attempt is being made to distinguish quantitatively between uranium-238 and uranium-235 fission in the blanket area by determining the ratio of ruthenium-106 to cesium-137 in the fission products.
Date: May 12, 1953
Creator: Lawroski, Stephen & Stevenson, C. E.
System: The UNT Digital Library
Creep Strength of Uranium Alloys at 1500 and 1800 F (open access)

Creep Strength of Uranium Alloys at 1500 and 1800 F

Abstract:"The creep resistance of various uranium binary alloys was investigated at 1500 and 1800 F in vacuum. Tests were made on alloys of uranium with beryllium, columbium, molybdenum, tantalum, titanium, and zirconium and on molybdenum-UO2 composites. Of the alloys examined, those of the uranium-molybdenum system exhibited the best creep resistance. At 1500 F, creep rates of about 0.005%/hr were produced in uranium-molybdenum alloys by a stress of 2500 psi and, at 1800 F, similar creep rates were obtained in composites of 90 wt % molybdenum-10 wt % UO2 by a stress of 12,000 psi."
Date: May 28, 1953
Creator: Saller, Henry A.; Stacy, J. T.; Eddy, N. S. & Klebanow, H. L.
System: The UNT Digital Library
Decontamination of Portable Instruments (open access)

Decontamination of Portable Instruments

The decontamination of portable instruments by the Calibration Unit has presented a problem for some time. Most of the contamination is in the 100 to 500 c/m or 500 to 2000 d/m range. Higher levels of contamination can usually be reduced to these levels, but further cleaning proves quite difficult
Date: May 22, 1953
Creator: Unruh, C. M.
System: The UNT Digital Library
Development of a Process to Produce Zirconium Hanford Type Process Tubing by Roll Forming And Inert Arc Welding (open access)

Development of a Process to Produce Zirconium Hanford Type Process Tubing by Roll Forming And Inert Arc Welding

The development of methods which were successful in producing zirconium Hanford type process tubing by roll forming and inert are welding (He) flat strip to which appropriate rails had ben previously attached by resistance welding is described in this report. Grade 2 drip arc melted crystal bar material was used.
Date: May 1, 1953
Creator: Noland, R. A. & O'Keefe, G. B.
System: The UNT Digital Library
Employment of the Spiral Orbit Spectrometer to Measure PIon Production Ratios by Proton Bombardment (open access)

Employment of the Spiral Orbit Spectrometer to Measure PIon Production Ratios by Proton Bombardment

Plus-minus ratios for pion production by 340-Mev proton bombardment were measured at 13 Mev, 18 Mev, and 42 Mev with the use of the spiral orbit spectrometer.
Date: May 26, 1953
Creator: Sagane, Ryokichi, 1905-1969
System: The UNT Digital Library
Energy Per Fission and Power of the Bulk Shielding Reactor (open access)

Energy Per Fission and Power of the Bulk Shielding Reactor

Due to some lack of knowledge of the energy per fission, there has been some uncertainty over the absolute power of the Bulk Shielding Reactor. This report analyzes measurements to state the absolute power of the BSR within a few percent.
Date: May 12, 1953
Creator: Meen, J. L.; Johnson, E. B. & Hungerford, H. E.
System: The UNT Digital Library
Full Scale 48 MC Cavity For Sparking Tests of Gaps Corresponding to 0.45 To 4.5 Mev Beam Energy (open access)

Full Scale 48 MC Cavity For Sparking Tests of Gaps Corresponding to 0.45 To 4.5 Mev Beam Energy

It is proposed to test gaps corresponding to deuteron energies in the range of 0.45 to 4.5 Mev. The accelerator to be modeled is a 48 mc/sec cylindrical cavity in the TM010 mode with [formula] repeat length, [formula] gap, 0.25 megavolt per cavity foot peak r.f. gradient and strong focusing magnets alternating polarity at each drift tube.
Date: May 19, 1953
Creator: Unnam, Craig S.
System: The UNT Digital Library
The Furnace Spectrum of Plutonium (open access)

The Furnace Spectrum of Plutonium

Abstract: "The spectrum of plutonium has been observed over the temperature range of 2000 to 2600 C and a wavelength coverage of 3476 to 6888 A. The spectrum was excited in a modified King furnace."
Date: May 12, 1953
Creator: Conway, John G.
System: The UNT Digital Library
A Hanford Works Vacuum System (open access)

A Hanford Works Vacuum System

The remodeling, fabrication, and instrumentation of a high vacuum system are described. The faults encountered with the old system and their solution are outlined. Tests were made on diffusion pump oils and on the reduction of pump oil back diffusion. The measurement of high vacuum pressures by a cold cathode ionization gage at various points on a vacuum system are discussed.
Date: May 28, 1953
Creator: Holdreth, N. T.
System: The UNT Digital Library
Identification of Reaction Products Formed During Magnesium Reduction of Uranium Tetrafluoride: Report (open access)

Identification of Reaction Products Formed During Magnesium Reduction of Uranium Tetrafluoride: Report

Abstract: "This report describes the results of X-ray diffraction examination of reaction products from a series of experiments performed by Mallinckrodt Chemical Works as an acid in understanding the process of bomb reduction of UF4. UF4 is initially reduced to UF3 by magnesium at 560 C., and subsequently to metal at 600 C. MgF2 from the initial reaction forms a coating on the magnesium which retards the final spontaneous reaction."
Date: May 15, 1953
Creator: Schwartz, C. M. & Vaughan, D. A.
System: The UNT Digital Library
The Identification of the Angular Inclusions Present in Rolled Uranium (open access)

The Identification of the Angular Inclusions Present in Rolled Uranium

Hanford uranium contains minute angular inclusions which affect the microstructure, reactivity, and other important factors controlling the serviceability of the metal. Small quantities of the inclusions have been isolated by chemical means, and the x-ray diffraction patterns and chemical analyses of the isolated materials have been determined. As a first step in the identification of the inclusions present in rolled uranium, a search was made for a chemical method of separating the inclusions from the matrix metal.
Date: May 15, 1953
Creator: Scott, F. A.
System: The UNT Digital Library
The Isolation and Purification of Neptunium-237 Obtained From Hanford Wastes (open access)

The Isolation and Purification of Neptunium-237 Obtained From Hanford Wastes

Through the efforts of the Hanford Engineer Works a quantity of neptunium-237 was separated from uranium waste solutions by a modification of the standard plutonium precipitation process, This material, as concentrates, was shipped to Argonne for final isolation and purification of the neptunium.
Date: May 6, 1953
Creator: Hindman, J. C.; Wehner, Philip, 1917-; Sullivan, J. C. & Cohen, Donald
System: The UNT Digital Library
Limitations on Bore, Entering Beam, and Voltage Gradients in the Strong Focusing Linear Accelerator (open access)

Limitations on Bore, Entering Beam, and Voltage Gradients in the Strong Focusing Linear Accelerator

Engineering notes on limiting bore diameter, angular divergence in a linear accelerator.
Date: May 1, 1953
Creator: Good, Myron L. & Smith, Lloyd
System: The UNT Digital Library
Liquid-Liquid Extraction (open access)

Liquid-Liquid Extraction

Abstract: "Extraction equipment of the multistage mixer-settler type has been found useful for providing the intensive contact between phases that is required in processes involving complex compounds of the heavy metals. In this report, the factors of mixer-settler design and operation are discussed with reference to the known types of mixer-settler units. Following this review, a detailed description is given of mixer-settler units constructed and installed in this laboratory."
Date: May 1953
Creator: Davis, Milton Wickers, Jr.; Hicks, Thomas E. & Vermeulen, Theodore
System: The UNT Digital Library
Materials Handbook : Part V - Properties of Thorium (open access)

Materials Handbook : Part V - Properties of Thorium

"These notes are intended to serve as a summary of the current knowledge of properties of materials. In the future some need may exist for related information on methods od testing, design and fabrication. This issue presents information on thorium with subdivisions..."
Date: May 6, 1953
Creator: Wendell, George E.; Majors, Harry, Jr.; Wallace, R. H. & Webster, R. T.
System: The UNT Digital Library
Monthly Progress Report No. 120 - March 15, 1953 To April 15, 1953 (open access)

Monthly Progress Report No. 120 - March 15, 1953 To April 15, 1953

Progress on projects on experimental physics, theoretical physics, MTA Target-Physics Program, accelerator construction and operation, chemistry, biology and medicine, plant and equipment.
Date: May 1, 1953
Creator: University of California Radiation Laboratory
System: The UNT Digital Library
Neutron Streaming in Steel: The Dependence of the Streaming on the Nickel Content of the Steel (open access)

Neutron Streaming in Steel: The Dependence of the Streaming on the Nickel Content of the Steel

The following report analyzes whether there is a difference between the neutron streaming in the "armor plate" and 347 stainless steel.
Date: May 25, 1953
Creator: Schamberger, Robert D. & Shore, Ferdinand J.
System: The UNT Digital Library
Outgassing Tests of Uranium Slugs (open access)

Outgassing Tests of Uranium Slugs

During the canning of slugs for Production Test 313-105-3-M, a high number of rejects were caused by gas voids in the A1-S1 bonding layer. Since the heat treatment of the slugs in a molten salt bath resulted in a chemically altered surface, an investigation was made to determine the volume of gas evolved from salt-bath heat-treated slugs as compared to other types of slugs. This test was designed as a preliminary test to determine if there were a significant differences.
Date: May 27, 1953
Creator: Johnson, H. A.
System: The UNT Digital Library
The Propagation of Spherical Shock Waves (open access)

The Propagation of Spherical Shock Waves

This technical report is a summary of unclassified theoretical work on propagation of one-dimensional shock waves and on the propagation of spherical shock waves in gases.
Date: May 4, 1953
Creator: Ungar, Eric E.
System: The UNT Digital Library
Refractive Indices of the Systems Uranium Hexafluoride-Bromine Trifluoride and Uranium Hexafluoride-Bromine Pentafluoride (open access)

Refractive Indices of the Systems Uranium Hexafluoride-Bromine Trifluoride and Uranium Hexafluoride-Bromine Pentafluoride

A spectrometer has been used with a hollow prism electrically heated to 70 C to measure the refractive indices of solutions of uranium hexafluoride in bromine trifluoride and uranium hexafluoride in bromine pentafluoride. The refractive indices of the two binary systems have been expressed as a function of composition.
Date: May 25, 1953
Creator: Stein, Lawrence & Vogel, Richard C.
System: The UNT Digital Library
Remarks on Reactivity Control in Light Water Moderated Reactors (open access)

Remarks on Reactivity Control in Light Water Moderated Reactors

Report discussing the effects of thermal diffusion length and certain details in the design of light water moderated reactors and their effect on reactivity.
Date: May 28, 1953
Creator: Stoker, R. L.
System: The UNT Digital Library
Removal of the Compound Layer From Decanned Hanford Uranium Slugs by the Use of Sodium Hydroxide (open access)

Removal of the Compound Layer From Decanned Hanford Uranium Slugs by the Use of Sodium Hydroxide

About twenty-five to thirty per cent of the uranium slugs canned in the Metal Preparation Section do not meet specifications and are rejected. These rejected slugs are recovered by a chemical process and prepared for re-canning. The current recovery process consists essentially of a sodium hydroxide-sodium nitrate bath for chemically removing the aluminum can and the bonding medium, followed by hydrofluoric acid and nitric acid baths to remove the remaining compound layer and to pickle the slugs before they are returned to the process canning line. Recent studies have indicated the possibility of using a more economical means of recovery. this includes the mechanical removal of the aluminum can and most of the bonding medium, followed by a chemical removal of the residual compound layer by a solution of sodium hydroxide.
Date: May 15, 1953
Creator: Brandt, H. L.
System: The UNT Digital Library