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Radiation Effects in Circular Electron Accelerators (open access)

Radiation Effects in Circular Electron Accelerators

"The effects of radiation emission on the motion of electrons in high energy synchrotrons are analyzed. The damping rates and quantum excitation of the three principal modes of oscillation are derived for strong focusing and constant gradient accelerators. Methods for correcting the radiation effects for strong focusing accelerators are discussed."
Date: January 6, 1958
Creator: Robinson, Kenneth W.
System: The UNT Digital Library
Dynamic Response of Reactor Plant to Load Changes. Section I. First Performance. Core I, Seed 1. Test Results DL-S-251 (T-612390) (open access)

Dynamic Response of Reactor Plant to Load Changes. Section I. First Performance. Core I, Seed 1. Test Results DL-S-251 (T-612390)

The purpose of the test was to determine the responses of the plant when subjected to load transients exceeding the design magnitudes, and to determine the maximum load changes, positive or negative, that the plant can sustain. The reactor plant responded satisfactorily to all load transients. The only limits exceed were the pressurizer high and low level alarm points. The magnitude of the transients and the time required for the plant to return to equilibrium was dependent upon the size of the the load change. The pressurizer spray was effective in reducing reactor coolant pressure positive surges; however, this resulted in larger negative surges than when the spray valve was closed.
Date: November 6, 1959
Creator: Gentry, George
System: The UNT Digital Library
A Numerical Integration Scheme for Problems Involving Contour Representations (open access)

A Numerical Integration Scheme for Problems Involving Contour Representations

The definition of the Lebesgue integral is used to develop a numerical integration method in which the integral is evaluated directly from a contour plot of the function. It is useful in working from weather maps, potential surfaces, etc., but was particularly designed to assist in reducing blast diffraction space-time diagrams to simple, meaningful quantities.
Date: July 6, 1955
Creator: Hudson, C. C.
System: The UNT Digital Library
A Comparison of the Neutron Yields from Low-Voltage Sources (open access)

A Comparison of the Neutron Yields from Low-Voltage Sources

The description of the thick-target neutron yields from the D(t,n)He4 and the D(d,n)He3 reactions is calculated as a function of the energy of the bombarding particles. For 60-kev particles the ratio is 108. I increases to 168 at 100 Kev and to 194 for 120-kev particles. A qualitative discussion of the yields from various deuterium target leads to the conclusion that the greatest yield would come from the target which has the lowest stopping cross section per deuterium atom.
Date: October 6, 1954
Creator: Cooper, John N.
System: The UNT Digital Library
An Investigation of Scaling of Zirconium at Elevated Temperatures Quarterly Status Report no. 9.June 2, 1955 to Sept. 2, 1955 (open access)

An Investigation of Scaling of Zirconium at Elevated Temperatures Quarterly Status Report no. 9.June 2, 1955 to Sept. 2, 1955

To obtain a better understanding of the mechanism involved in scaling behavior of zirconium, kinetic studies were made of the weight pickup in air after the following pretreatments; (1) exposure to oxygen or nitrogen, (2) exposure to air, oxygen or nitrogen and removal of the resulting surface compounds.
Date: September 6, 1955
Creator: Green, H. M.; Tuchschmid, Heinrich Eugen, 1922- & Baldwin, W. M., Jr.
System: The UNT Digital Library
Gas Plated Coatings on Metals and Alloys : Progress Report No. 5 (open access)

Gas Plated Coatings on Metals and Alloys : Progress Report No. 5

The object of the work done during the month of June has been to assure that deposition of chemically pure chromium metal by gas plating, both by itself, or as a component of nickel-chronium and/or other alloys.
Date: July 6, 1953
Creator: Nack, Herman; Bulloff, Jack J. & Whitacre, John R.
System: The UNT Digital Library
Diffusion of Iron, Cobalt, and Nickel in Gold, Report No. 5 (open access)

Diffusion of Iron, Cobalt, and Nickel in Gold, Report No. 5

"The diffusivities of Fe, Co, and Al in otherwise pure Au were determined by a residual activity technique. It was found that the frequency factors and activation energies of the transition elements into Au are normal relative to the values for Au self-diffusion, and suggest that lattice diffusion is operative, in contrast to the corresponding situation for the diffusion of these elements in Al. This difference in behavior is explained in terms of the marked difference in solid solubilities in the two series."
Date: June 6, 1962
Creator: Duhl, David N.; Hirano, Ken-ichi & Cohen, Morris
System: The UNT Digital Library
Diffusion in Cobalt-Nickel Alloys, Report No. 4 (open access)

Diffusion in Cobalt-Nickel Alloys, Report No. 4

The self-diffusivities of Co60 and Ni63 in cobalt--nickel solid solutions exhibit a greater activation energy below the Curie temperature (T/sub c/) than above. Values of DELTA Q = Q (ferromagnetic) -- Q (paramagnetic) are approximately equal to RT/sub c/. This observation is interpreted to indicate that the increment in activation energy arises from an increase in the formation energy of a vacancy in the ferromagnetic lattice, with the additional binding energy arising from the interaction of a spin with the Weiss field."
Date: June 6, 1962
Creator: Hirano, Ken-ichi; Agarwala, R. P.; Averbach, B. L. & Cohen, Morris
System: The UNT Digital Library
The Precipitation of Lanthanum from Solution in the Presence of Radiation (open access)

The Precipitation of Lanthanum from Solution in the Presence of Radiation

Abstract. In order to anticipate radiation - chemical effects in solutions of active lanthanum, various solutions and suspensions containing lanthanum were irradiated with an electron beam. Separation of lanthanum from barium by the alcoholic HCl method is not rendered less efficient by radiation, although considerable gas evolution occurs. Suspensions of lanthanum as hydroxide and as ferrocyanide are not appreciably solubilized by radiation. Lanthanum oxalate is decomposed by radiation, is partially thrown into solution, and finally dissolves completely when all the excess oxalate ion in the solution has been destroyed.
Date: April 6, 1945
Creator: Penneman, R. A. (Robert Allen), 1919-; Ghormley, J. A.; Gordon, S.; Leaf, B. & Allen, A. O. (Augustine O.)
System: The UNT Digital Library
The Effect of Radiation on the Corrosion of Metals by Water (open access)

The Effect of Radiation on the Corrosion of Metals by Water

Technical report. Long-time tests have been made on the effect of various types of radiation on the corrosion of 2S aluminum in simulated W water. In no case was any acceleration of corrosion by the radiation observed; the effect of radiation, if any, appeared to be a protective one. Deuteron irradiation did accelerate the corrosion of mild steel at low flow rates in hot water of pH 6 to 7, but no appreciable effect was observed with copper, stainless steel, or tuballoy. The general theory of the effect of radiation on corrosion is discussed, with the conclusion that no acceleration of corrosion by radiation is to be expected in most cases of practical interest.
Date: July 6, 1944
Creator: Allen, A. O. (Augustine O.); Bowman, M. C.; Goldowski, Nathalie; Larson, R. G. & Treiman, L.
System: The UNT Digital Library
FMPC Solvent Treatment Area - Process Design (open access)

FMPC Solvent Treatment Area - Process Design

This memorandum presents the process design for the solvent reast area of the Feed Materials Production Center. The purpose ofthe transmittal is to provide the basis for the detailed mechanical design and layout of this section of the refinery. Drawings, flowsheets, and specifications are included.
Date: July 6, 1951
Creator: Pfeiffer, Carl & Maerker, John B.
System: The UNT Digital Library
Geological investigations report of the Trachyte District, Henry Mountains, Utah (open access)

Geological investigations report of the Trachyte District, Henry Mountains, Utah

Report of geological investigations of the Trachyte District of the Henry Mountains in Utah
Date: December 6, 1951
Creator: Brooke, Gerald L.; Shirley, Raymond F. & Swanson, Melvin A.
System: The UNT Digital Library
Preliminary petrographic study of rock from Nevada Test Site - Basalt Mesa (open access)

Preliminary petrographic study of rock from Nevada Test Site - Basalt Mesa

Discussing photographs of rocks from Basalt Mesa
Date: May 6, 1960
Creator: Anderson, E. E.
System: The UNT Digital Library
Uranium deposits in the Pryor-Big Horn Mountains, Carbon County, Montana, and Big Horn County, Wyoming (open access)

Uranium deposits in the Pryor-Big Horn Mountains, Carbon County, Montana, and Big Horn County, Wyoming

Discussing the occurrence of uranium deposits in the Pryor-Bighorn Mountains.
Date: February 6, 1959
Creator: Hart, Olin M.
System: The UNT Digital Library
Diamond drilling recommendations for the Four Aces prospect, White Canyon, Utah (open access)

Diamond drilling recommendations for the Four Aces prospect, White Canyon, Utah

Discussing recommendations for diamond drilling in the four aces prospect in White Canyon, Utah.
Date: August 6, 1952
Creator: Frankovich, Frank J.
System: The UNT Digital Library
Radioactive Isotopes of Bismuth (open access)

Radioactive Isotopes of Bismuth

Five isotopes of bismuth occur in nature. Using particle accelerators providing helium ions up to 40 Mev in energy and deuterons up to 20 Mev in energy, it was possible to produce and identify two artificial radioactive isotopes. With the advent of the 184-inch Berkeley syncho-cyclotron and its hundreds of Mev energies, it was possible to form highly neutron-deficient bismuth isotopes extending more than ten mass units below stable Bi(209).
Date: April 6, 1950
Creator: Neumann, H. M.
System: The UNT Digital Library
Transient Temperatures in Flat Plates (open access)

Transient Temperatures in Flat Plates

Calculations presented were done to determine what maximum temperature gradients and stresses would be in typical designs of flat thorium plates, 100 mils thick and coolled on both sides by NaK.
Date: April 6, 1951
Creator: Hanson, Donald N.
System: The UNT Digital Library
Report No. EC-2, Dated from March 24, 1943 to November 5, 1943, Contained in the Engineer's Log Book (open access)

Report No. EC-2, Dated from March 24, 1943 to November 5, 1943, Contained in the Engineer's Log Book

This technical report consists of day by day experimental data reported in Engineer's Log book, Electro-Chemistry Department, supporting Report No. EC-11 dated November 15, 1944, by W. L. Grube, Research Laboratories Division, General Motors Corporation.
Date: November 6, 1943
Creator: Grube, William L.
System: The UNT Digital Library
Stability of Florothene Under Exposure to Gamma Radiation (open access)

Stability of Florothene Under Exposure to Gamma Radiation

The stability of fluorothene (polytrifluorochloroethylene, Kel-F) to gamma radiation has been investigated to estimate the probable life expectancy of fluorothene equipment exposed to Purex process solutions. Samples of fluorothene were exposed to total gamma radiation dosages up to 10 degree R. The results of these tests substantiate the findings reported by Sisman and Bopp in their compilation of data on the affects of radiation on plastics.
Date: July 6, 1956
Creator: Adler, K. L.
System: The UNT Digital Library
The Chemical Effects of Nuclear Transformations (open access)

The Chemical Effects of Nuclear Transformations

This technical report is divided into two sections addressing two different chemical effects of nuclear transformations. The first section discusses the beta decay of lanthanum to cerium. The second section discusses the beta decay of selenium to bromine.
Date: June 6, 1946
Creator: Coryell, Charles D. (Charles Du Bois), 1912-1971; Gest, H.; Edwards, R. R. & Davies, T. H.
System: The UNT Digital Library
Cation Exchange Separation of Divalent Metal Ions From Rare Earths (open access)

Cation Exchange Separation of Divalent Metal Ions From Rare Earths

From abstract: "The divalent metal ions of calcium, magnesium, nickel, and strontium are eluted from a cation exchange column with 1.5M nitric acid and separated from trivalent rare earths, aluminum and yttrium. Prior sequential elution of other metal ions with hydrochloric acid in acetone-water or with dilute hydrofluoric acid does not interfere with the present separation method."
Date: June 6, 1962
Creator: Fritz, James S. (James Sherwood), 1924- & Garralda, Barbara B.
System: The UNT Digital Library
Acid-Base Equilibria in Tertiary Butyl Alcohol (open access)

Acid-Base Equilibria in Tertiary Butyl Alcohol

From abstract: "The dissociation of acids in tertiary butyl alcohol has been studied by potentiometric, spectrophotometric, and conductimetric methods. Values for the over-all dissociation of perchloric and picric acids and several tetrabutylammonium salts were estimated by the Fuoss-Kraus treatment of conductance data. Potentiometric studies were carried out at constant ionic strength in order to minimize activity coefficient variations. An acidity scale was established from potentiometric measurements at a glass electrode, and conductance values of dissociation constants. A method was developed for the evaluation of the over-all dissociation constant of weak acids using potentiometric data for hydrogen ion activities and conductance data for the corresponding anion activities. Over-all dissociation constants are reported for perchloric acid, picric acid, 2,4-dinitrophenol, and benzoic acid. Apparent dissociation constants from potentiometric measurements at a constant ionic strength were determined for hydrobromic, nitric, hydrochloric, picric, and p-toluenesulfonic acids."
Date: August 6, 1962
Creator: Marple, Leland & Fritz, James S. (James Sherwood), 1924-
System: The UNT Digital Library
Corrosion Effects of Lowering the pH in TBP Waste Storage Tanks (open access)

Corrosion Effects of Lowering the pH in TBP Waste Storage Tanks

Large savings in waste storage space may be realized by lowering the pH at which TBP waste is stored. Additional savings in neutralizing chemicals and operating time would also increase the monetary gain from such a process change. However, before such a change could be made, the corrosive effect of TBP waste at a lower pH on the mild steel waste storage tanks had to be determined.
Date: April 6, 1954
Creator: Groves, N. D.
System: The UNT Digital Library
Maximum Temperature in Thin Rectangular Uranium Wafers (open access)

Maximum Temperature in Thin Rectangular Uranium Wafers

Temperature calculations have been made to aid in planning a production test for low level irradiation of the thin rectangular uranium wafers. These uranium wafers, under irradiation in the outer fringe sone, are expected to have a maximum temperature which is less than 10 C above the local water temperature.
Date: January 6, 1954
Creator: McNutt, C. R.
System: The UNT Digital Library