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Calculation and Measurement of the Transient Temperature in a Low- Enrichment UO$sub 2$ Fuel Rod During Large Power Excursions

Description: The results of Spert I in-pile transient tests of a rodtype, low- enrichment UO/sub 2/ fuel element are presented. The tests were performed to investigate the possibility of damage to such long thermal-time-constant fuel rods when subjected to short-period power excursions, and to test the effectiveness of an instrumentation technique for measurement of UO/sub 2/ fuel temperatures within the rods. In an initial series of power excursion tests, in which the range of reactor periods was from appr… more
Date: May 18, 1962
Creator: Houghtaling, J. E.; Quigley, T. M. & Spano, A. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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RADIOISOTOPE AND RADIATION APPLICATIONS. Quarterly Progress Report

Description: The study of the formation mechanism of free radicals in polymeric materials was continued. Emphasis was placed on an examination of the effect of structural factors on the efficiency of free-radical site formation in acrylate polymers. Site measurements as a function of dose were made for polymethacrylamide and repeated for polymethacrylic acid. The volatile products from the irradiation of polyacrylic acid. polymethacrylic acid, poly-ter- butylmethacrylate. and polycyclohexyl methacrylate wer… more
Date: July 18, 1961
Creator: Sunderman, D.N. ed.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Magnetic Determination of Impurities in Uranium Fuel Slugs

Description: A technique has been devised for the non-destructive determination of the uranium hydride and/or iron content in uranium fuel slugs of Hanford size. The technique, an adaptation of the Gouy method for measuring magnetic susceptibilities, is based on the ferromagnetic properties of the hydride below 173 deg K. A large electromagnet and a pain balance are utilized in measuring the magnetic forces on a vertically suspended slug at liquid nitrogen temperatures and at room temperature. It was found … more
Date: June 18, 1956
Creator: Wahl, D. & Liboff, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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RMF MEASUREMENTS ON MTR-IRRADIATED EUROPIUM OXIDE

Description: Aluminum capsules with Al inserts and He atmospheres and containing 4 strips of Eu/sub 2/O/sub 3/-stainless steel were measured in the Reactivity Measurement Facility at MTR, both before and after irradiation. (T.R.H.)
Date: January 18, 1957
Creator: Henscheid, J.W. & Fast, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Production and Decay of the K<Sup>0</Sup> Meson

Description: This paper was previously abstracted irom the original language and appears in NSA Vol. 11, as abstract No. 13429. l9565 Selection rules, which occur ln the annihilation of a found nueleon-antinucleon system were examined. The decay of neutral K mesons with allowance for the conservation of combined parity was also investigated. (auth)
Date: May 18, 1959
Creator: Parker, Sherwood
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Fission Spectrum

Description: Measurements of the spectrum of the fission neutrons of 25 are described, in which the energy of the neutrons is determined from the ionization produced by individual hydrogen recoils. The slow neutrons producing fission are obtained by slowing down the fast neutrons from the Be-D reaction of the Stanford cyclotron. In order to distinguish between fission neutrons and the remaining fast cyclotron neutrons both the cyclotron current and the pusle amplifier are modulated. A hollow neutron contain… more
Date: August 18, 1943
Creator: Bloch, F. & Staub, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermionic Properties of Uranium Wire

Description: Three independent measurements of the work function of uranium have been reported. The values obtained were were made with uranium wire and since, as shown by the authors, uranium is very readily oxidized at pressures of 10/sup -7/ mm Hg to give a relatively non-volatile oxide, one surmises that some of these determinations were subject to error because of vacuum conditions. Attempting to investigate the validity of this criticism, the authors have measured the thermionic properties of a uraniu… more
Date: August 18, 1955
Creator: Rauh, E. G. & Thorn, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurements Through a Hot Cell Window Using Optical Tooling

Description: S>Optical tooling has been evaluated for the measurement of physical dimensions of radioactive parts through hot cell windows. Instruments were set up outside of a four foot thick lead glass window and by means of a grid plate which had been accurately scribed, a ''contour map'' or calibration chart of the window variations was recorded. Although the window was not specially selected, the readings were within 1.0% of the true dimension without using correction factors. One of the calibration ch… more
Date: July 18, 1958
Creator: Abbatiello, A. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

HRT COOLING-WATER SYSTEM. HRT Engineering Test Procedures VI A-2, 3, 4, 5 B-1, a, b B-2 and B-3

Description: Experimental procedures for testing the HRT coolingwater system and its components are presented. The cooling-water system is a closed system consisting of three parallel circuits fed by a single circulating pump fed from a forced draft cooling tower and supply reservoir. In the event of radioactive contamination of the cooling-water system the tower supply lines are equipped with block valves that confine the solutions to the reactor cell, and after shutdown heat may be removed by discharging … more
Date: April 18, 1956
Creator: Brooksbank, R.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Direct Maintenance Practices for the Homogeneous Reactor Test

Description: The Homogeneous Reactor Test is designed for maintenance to be performed while the parts of the reactor are partinlly or completely submerged in water to reduce radiation levels. Tools with long handles permit the operator, standing above the equipment, to disconnect flanged joints, air lines, electrical and instrument leads, etc., in a minimum time. The techniques and tools employed to accomplish these various operations and to minimize intermixing of the contaminated process fluids with the s… more
Date: April 18, 1958
Creator: Beall, S. E. & Jurgensen, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Fast, Wide-Range Time-to-Height Conversion System

Description: A time-to-height conversion system was developed which is useful for measuring time intervals from 10 psec to 200 mu sec. When driven by a mercury- relay pulse generator through appropriate fixed delays, the resolution of the system, FWHM, is 6 psec, the apparent time shift with temperature is less than 2 psec/ deg C, and the integral linearity is within plus or minus 1%. The apparent time distribution through a type 58 AVP photomultiplier tube driven by a mercury-relay pulser was less than 0.3… more
Date: September 18, 1962
Creator: Wieber, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Density of Uranyl Sulfate Solutions and the Determination of Uranium Concentration by Density Measurements

Description: A study of the density of aqueous uranyl solutions is described which was had as its primary purpose the development of an analytical method for the determination of uranium in relatively dilute solutions of this salt. These solutions contain trace amounts of contaminating elements. The presence of small amounts of free sulfuric acid and moderate variations in the temperature at which density measurements are made can be compensated for by the use of equations provided for the calculation of ur… more
Date: June 18, 1952
Creator: Lee, J. E., Jr.; Rowan, R., Jr.; Susano, C. D. & Menis, O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

PROPOSAL FOR AN EXPERIMENTAL STUDY OF THERMAL GRADIENT MASS TRANSFER IN A THERMAL CONVECTION LOOP

Description: S>A proposal is presented to design, construct, and operate a thermal gradient mass transfer loop to provide data on rates of solution and deposition as functions of time. Operation of the hot solution zone under controlled isothermal conditions is planned. It is felt that data obtained in such a loop would be of value in assessing the validity of presently proposed mecharisms for thermal gradient transfer or in devising new ones. The thermal and forced convection loops appear to offer moat pro… more
Date: February 18, 1958
Creator: Prados, J.W. & Scott, J.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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