250 Matching Results

Search Results

Results: 1 - 24 next
open access

Electroplates on Thorium

Description: Abstract: "The protection of thorium in hot water was studied. Copper electrocladding on thorium offers promising protection against hot water. The corrosion of thorium in 95 C water was reduced appreciably by a thorium phosphate film. The results of this abbreviated investigation offer a basis for the development of a method of protecting thorium at elevated temperatures in corrosive media."
Date: January 9, 1953
Creator: Beach, John G.; Schickner, W. C.; Vaaler, L. E. & Faust, Charles L.
Partner: UNT Libraries Government Documents Department
open access

Mineralogical Examination of Pitchblende Concentrates and Nitric Acid Digest Residues

Description: This report has two parts to it discussing mineralogical examination of pitchblende concentrates and nitric acid digest residues. Part I gives the results of a cursory examination with the petrographic microscope of samples of pitchblende concentrates and residues to see if there is a relationship between the mineral composition of the samples and the filterability of the residue. Part II gives a revaluation of the data in Report BMI-241 on the mineral composition of two residues from the nitri… more
Date: February 9, 1951
Creator: Scott, D. W.; Tangel, O. F. & Richardson, A. C.
Partner: UNT Libraries Government Documents Department
open access

Composition of vapors from boiling nitric acid solutions

Description: From abstract: "The composition of vapors from aqueous nitric acid solutions boiling at 200 mm mercury total pressure is established for solutions containing between - and 67.5 w/o nitric acid. The volatility characteristics of low concentrations of chloride in the same concentration range of nitric acid have been measured in solutions boiling at 200 mm mercury. The effects of chloride concentration and pressure of boiling are evaluated. A spectrophotometric method of the determination of chlor… more
Date: February 9, 1955
Creator: Crooks, R. C.; Wilson, R. Q.; Bearse, A. E. & Filbert, Robert B.
Partner: UNT Libraries Government Documents Department
open access

Solid-Phase-Reaction Studies of Control-Rod Materials

Description: Report discussing experiments on the interaction of neutron-absorber materials and metal matrix materials used in the fabrication of control rods, such as "boron, cadmium, and some of the rare-earth elements such as gadolinium and europium...In order to evaluate the reactions that might occur during fabrication and use, experiments were carried out in which combinations of the various control materials were heated in intimate contact with the several matrices at elevated temperatures."
Date: March 9, 1956
Creator: Gerds, Arnold F. & Mallett, Manley William, 1909-
Partner: UNT Libraries Government Documents Department
open access

The Corrosion of Hot-Pressed, Extruded, and Vacuum Cast Beryllium in Simulated Cooling Water for the Materials Testing Reactor

Description: Technical report covering the technology of hot-pressed beryllium production and its rapid advancement toward the end of 1949. Part I is devoted to corrosion studies made on hot-pressed and vacuum cast extruded metal which was considered representative of production. Part II is concerned with the results of tests made on special cast and hot-pressed beryllium which contained added impurities. [From Introduction]
Date: January 9, 1953
Creator: Reed, James
Partner: UNT Libraries Government Documents Department
open access

Shielding Reactor Corrosion Studies

Description: Technical report outlining the investigation of corrosion on MTR type fuel elements for the Shielding Reactor in filtered water. Report includes two basic types of protection: element pretreatment by either anodizing or alodizing, and solution control using nitric acid to maintain a pH of 5.5 to 6.5 or the addition of 60 ppm sodium chromate as an inhibitor. [From Abstract]
Date: July 9, 1951
Creator: Olsen, Arnold R.
Partner: UNT Libraries Government Documents Department
open access

Aircraft Nuclear Propulsion Project Quarterly Progress Report: Period Ending September 10, 1951

Description: The first part of this quarterly progress report details reactor theory and design, discussing the aircraft reactor experiment, experimental reactor engineering, reactor physics, and critical experiments. The second part of this report is not included. The third part of this quarterly progress report details materials research, discussing corrosion research, physical properties and heat-transfer research, metallurgy and ceramics, chemistry of high-temperature liquids, and radiation damage. The … more
Date: January 9, 1952
Creator: Briant, R. C.; Ellis, C. B. & Cottrell, William B.
Partner: UNT Libraries Government Documents Department
open access

Review of oxide facilities: 224-U Bldg.

Description: No Description Available.
Date: February 9, 1953
Creator: Rohrmann, C. A. & Ludlow, J. O.
Partner: UNT Libraries Government Documents Department
open access

Particle Trajectories in Homogeneous Magnetic Field with Linear Time Dependence

Description: Abstract: "Formulas are derived for the trajectory of a charged particle in a magnetic field which is a linear function of time. Graphs of certain functions are presented, by means of which a trajectory with given initial position and velocity may be plotted."
Date: August 9, 1955
Creator: Gardner, Clifford S.
Partner: UNT Libraries Government Documents Department
open access

Influence of Fluorine Substitution on the Properties of Metal Chelate Compounds

Description: From introduction: "This is the first of three articles dealing with the influence of fluorine substitution in the ligand on the properties of metal chelate compounds. Although the primary purpose of this project was to study the influence of fluorine substitution on the properties -- particularly light absorption -- of uranyl compounds, copper chelates were chosen for preliminary study as model substances, because they are easily prepared."
Date: June 9, 1955
Creator: Belford, R. Linn; Martell, Arthur E. & Calvin, Melvin, 1911-1997
Partner: UNT Libraries Government Documents Department
open access

The Technology of Large Mercury-Pumped Vacuum Systems

Description: From Abstract: "This paper deals with the vacuum design considerations of large systems involving the application of 8-inch through 32-inch mercury diffusion pumps. The selection, rating, and optimization of pumps are discussed along with the closely allied problem of baffling the pumps. The materials of construction and methods of fabrication to avoid subsequent system contamination are dealt with in detail. System interlocking and its associated instrumentation are illustrated by referral to … more
Date: November 9, 1955
Creator: Smith, Hugh R.
Partner: UNT Libraries Government Documents Department
open access

Suggested Uses of Cycloidal-Trajectory Particle Spectrometers in Nuclear Research

Description: From abstract: "The motion of a charged particle in a region of crossed electric and magnetic fields is discussed... Possible applications of such a system to various problems in nuclear research are suggested and it is shown to be possible in principle to measure the kinetic energy, mass, and ionic charge of various nuclear-reaction products and to separate various short-lived products for rapid examination. Two different devices are proposed. The application of the technique to investigation … more
Date: March 9, 1955
Creator: Stevenson, Peter Cooper
Partner: UNT Libraries Government Documents Department
open access

{open_quotes}O{close_quotes} ring sealed process tube, Phase II, test project

Description: The {open_quotes}O{close_quotes} ring seal has been proposed to replace the van stone flange and the bellows thermal expansion assembly currently used on the existing Hanford piles to achieve water and gas seals, respectively. Possible advantages of the {open_quotes}O{close_quotes} ring seal are: (1) simplification of component parts and elimination of van stone corrosion; (2) simplification of maintenance; (3) lower costs of initial erection; (4) increased strength. This test supplements Test … more
Date: April 9, 1951
Creator: Johnson, R. E.
Partner: UNT Libraries Government Documents Department
open access

Temperature Measurement in Operating Reactors: In-Reactor Temperature Measurement Associated With Fuel Element Testing

Description: The Fuel Development operation at Hanford uses a variety of in-reactor facilities to test experimental and prototypical fuel elements. High pressure-high temperature water loops in constant use are the 6 in. {times} 9 in. ETR core facility, the 3 in. {times} 3 in. ETR reflector facility and four front-to-rear loops in the 100-K East reactor at Hanford. Low pressure water cooled test facilities in use are located in the MTR the various Hanford reactors. Stainless steel sheathed the thermocouples… more
Date: December 9, 1959
Creator: Wheeler, R. G.
Partner: UNT Libraries Government Documents Department
open access

PT IP-205-A: Irradiation of Zircaloy-2 jacketed rod-and-tube elements in the KER Loops

Description: The objective of the production test is detailed in this report is to obtain information about the behavior of Zircaloy-2 jacketed rod-and-tube fuel elements during irradiation at high coolant temperatures specifically, this test should provide information about fuel element dimensional stability, suitability of the rod and tube support system, and behavior of the uranium--Zircaloy-2 bond. Four co-extended Zircaloy-2 jacketed rod-and-tube elements, two with welded tube end closure and two with … more
Date: October 9, 1958
Creator: Kratzer, W. K.
Partner: UNT Libraries Government Documents Department
open access

Irradiation performance of enriched uranium clad in stainless steel: PT-IP-123-A. Final report

Description: Early in the development of an extended surface fuel element for use in the NPR, several 7-rod cluster fuel elements were irradiated to determine the dimensional stability of such geometries at high burnups. These elements were fabricated from small diameter uranium rods clad unbonded in stainless steel tubes and assembled in a rod cluster geometry by various support devices. Zircaloy clad fuel rods were not yet available, the stainless steel clad rods therefore served as a suitable material wh… more
Date: June 9, 1959
Creator: Claudson, T. T.
Partner: UNT Libraries Government Documents Department
open access

Report of trip to Los Alamos, Albuquerque Operations Office, and ACF Industries, September 17--19, 1956

Description: This report describes travel to Los Alamos Scientific Laboratory September 17, and 19, ALOO and ACF Industries, Inc. At Los Alamos the principal subjects discussed were reservoir design, and reservoir shipping specifications. In Albuquerque a meeting was held with Albuquerque Operations Office personnel to discuss design and procurement of shipping containers, followed by discussions with ACF of reservoir fabrication and testing.
Date: October 9, 1956
Creator: Crawley, J. E. Jr.
Partner: UNT Libraries Government Documents Department
open access

Venturi throat diameter and process tube connector cavitation analysis CG-654

Description: When a ``K`` type process tube is operated without a slug column, damage may take place in the connector because of the cavitation that originates in the venturi. Reported here is a study of this cavitation problem as related to CG-654 operating conditions. A series of curves were developed to present the effect of the venturi diameter on the venturi {Delta}P for instrument operation and on the cavitation problem at the higher flows which are experienced when the tube is operated without a slug… more
Date: July 9, 1956
Creator: Morris, W. J.
Partner: UNT Libraries Government Documents Department
open access

Technical Progress Letter

Description: It was agreed at the February, 1951 meeting of the Atomic Energy Commission Technical Information Panel that, wherever practical, progress reports should periodically include a list of previous reports issued in the same series. Such a list would greatly facilitate servicing by installation document rooms since requests are frequently received for reports in a specific series. This report lists the Technical Progress Letters from 1944 to date, and is distributed to recipients of the Letters in … more
Date: October 9, 1951
Creator: Linkous, I. G.
Partner: UNT Libraries Government Documents Department
open access

AEC research programs in support of Savannah River

Description: In the reference letter and later letters the author made recommendations pertaining to the programs of AEC National Laboratories and other AEC contractors in direct support of the Savannah River project during FY-1956. He believes that these recommendations should now be revised in view of schedule changes ad in the light of accumulated experience. The estimated cost of the programs recommended earlier totaled $2,083,000 for FY-1956. The estimated cost of programs currently recommended total $… more
Date: December 9, 1955
Creator: Worthington, H.
Partner: UNT Libraries Government Documents Department
open access

Waste tank scheduling for B and T Plants

Description: Prior to fiscal year 1955 waste tank scheduling for Separations Plants included the assumptions that T Plant would cease operations in March, 1955 and B Plant would nto be reactivated. At the beginning of the fiscal year these were changed to the assumptions that T Plant would operate through June, 1958 and B Plant, after reactivation, would operate July, 1955 through June, 1957. It has been necessary to alter waste tank scheduling accordingly. The letter of July 23, 1954, {open_quotes}B Plant … more
Date: December 9, 1954
Creator: Peterson, D. E.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen