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Analysis of Vanadium in Milk Powder by Neutron Activation Analysis Using a Rapid Radiochemical Separation of 3.77-Minute Vanadium-52

Description: A procedure is described for the activation determination of V in powdered milk using 3.77-min V/sup 52/. The quantity of V in the sample is obtained by comparing the V/sup 52/ radioactivity found in the test sample with the V/sup 52/ radioactivity in a V comparator sample that is treated in the same manner as the test sample. The procedure can also be used for the determination of V in a variety of materials. (P.C.H.)
Date: November 15, 1963
Creator: Molinski, V. J.; Wahl, W. H. & Strain, W. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

INSTRUMENT FOR DETERMINING CRUSHING STRENGTH OF PARTICLES

Description: An instrument for crushing-strength determinations of uncoated and pyrolytic-carbon-coated fuel particles (50 to 500 mu in diameter) was developed to relate the crushing strength of the particles to their fabricability. The instrument consists of a loading mechanism, load cell, and a power supply-readout unit. The information that can be obtained by statistical methods of the data analysis is illustrated by results on two batches of fuel particles. (auth)
Date: November 29, 1963
Creator: Hallerman, G. & Gray, R.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Organic Coolant Research Summary Report, July 1, 1960-March 31, 1963

Description: : : 7 : ; : = : : 9 ; 8 : ; / he use of organic liquids as reactor moderator-coolants is presented. A major part of the study was devoted to the mechanism of radiolytic damage to coolants. A mathematical treatment for handling information on the relative reactivity of different positions on an aromatic ring was developed in some detail. Determinations on products from the radiolysis of terphenyls, biphenyl, and mixtures of these with benzene indicate that free radicals may be the main reactive … more
Date: October 1, 1963
Creator: Hillyer, J.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

PAPERS PRESENTED AT THE EIGHTH ANNUAL MEETING ON BIO-ASSAY AND ANALYTICAL CHEMISTRY, AUGUSTA, GEORGIA, OCTOBER 18-19, 1962

Description: Nine papers are included which treat the determination of cesium, tritium, americium-241, plutonium, thoron, and other radionuclides under a variety of conditions. One treats the preparation of standard alpha sources. Separate abstracts were prepared for six of the papers; the reraaining three papers were previously abstracted in NSA. (D.L.C.)
Date: October 31, 1963
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Experimental Investigation of Two-Phase, Two-Component Flow in a Horizontal, Converging-Diverging Nozzle

Description: A discussion is presented of an investigation of the flow characteristics in a horizontal, converging-diverging nozzle for a two-phase, air- water system. The primary consideration, to determine the effects of accelerating the liquid phase by the gaseous phase, was measured in terms of nozzle exit water velocity, exit slip ratio, and exit acceleration factor. A gamma-ray-attenuation technique was used to determine these values by determining the average cross-sectional void fraction, the ratio … more
Date: July 1, 1963
Creator: Vogrin, J. A., Jr.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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PHYSICS DIVISION SUMMARY REPORT, NOVEMBER-DECEMBER 1962

Description: The error in an approximation relating an equivalent local potential to a nonlocal potential in optical-model calculations was investigated. The differential cross section and polarization for neutrons scattered from Cd at 0.45 Mev were calculated by the nonlocal optical modei and two forms of the local optical model. Agreement of one local mode curve with the noniocal curve was far better than for the other that used different well-depth parameters. Elastic proton scattering from Cu/sup 63/, C… more
Date: October 31, 1963
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

METHODS OF PREDICTING THE PERFORMANCE OF SEMICONDUCTOR ELECTRONIC CIRCUITS AND SYSTEMS IN A NUCLEAR ENVIRONMENT

Description: The performance of electronic circuits and systems in a radiation environment can be determined if the radiation induced component changes are known and if system performance as a function of component changes can be determined. The most economical way of determining alterations of system performance caused by radiation combines analysis with an experimental technique intended for laboratory use. The analytical method requires that the performance of the system be expressed mathematically in te… more
Date: July 1, 1963
Creator: Rogers, S.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A STATISTICAL DETERMINATION OF THE REDUCED PROMPT NEUTRON GENERATION TIME,$lambda$//anti $beta$/, IN THE SPERT IV REACTOR

Description: An experimental determination of the reduced prompt neutron generation time LAMBDA / BETA in the Spert IV reactor utilizing a technique based on the statistical behavior of the neutron population is described. A mathematical model including the effects of delayed neutrons that relates the statistic variance-to-mean ratio of the count rate as a function of counting time'' to integral reactor parameters is derived. This model is used in conjunction with subcritical counting measurements from the … more
Date: August 1, 1963
Creator: Johnson, R.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A NEW METHOD TO DETERMINE VARIOUS FREE ENERGY STATES OF SILVER OXIDE ON SILVER METAL

Description: The solubility of silver oxide on silver metal is not the same as that of the bulk oxide. The differences in solubility were investigated by shaking silver powder in deaerated solutions of various concentrations of ammonia and in buffers of ammonia and ammonium nitrate at a constant temperature of 25 deg C. These solutions were shaken in an atmosphere of N/sub 2/ in a stoppered bottle and in the absence of light. The concentration of silver ion in these solutions was measured potentiometrically… more
Date: October 31, 1963
Creator: van'; t Riet, B & Watt, W J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

BEVATRON OPERATION AND DEVELOPMENT. XXXIII. Period Covered February- April 1962

Description: Experimental work consisted of one new run started and completed this quarter, and the completion of one of the three continuing runs. Of the scheduled operating time, the beam was on for 69.4% of the time, 2.3% of the time was used for experimental setup, and equipment outage took 29.3% of the time. There were two scheduled and two impromptu shutdowns. During one of the scheduled shutdowns the external-beam extraction magnets were installed in the east and south tangent tanks. The other schedu… more
Date: February 12, 1963
Creator: Crebbin, K.C.; Wenzel, W.A.; Lothrop, F.H.G. & Johnson, R.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

UPTAKE AND TRANSFER OF FALLOUT I$sup 131$ IN PREGNANT WOMEN

Description: Levels of I/sup 131/ in pregnant women and controls were determined by whole-body counting with a scintillation crystal placed over the thyroid. No detectable levels of I/sup 131/ were found. Ten fetal thyroids and milk samples were also negative for I/sup 131/. In a second series counted during Oct. through Dec. 1962, levels of I/sup 131/ in pregnant women ranged from 0 to 160 pC. In 5 of the offspring of these women measured from 18 to 34 days after birth, no significant levels of I/sup 131/ … more
Date: October 31, 1963
Creator: Cohn, S.H. & Gusmano, E.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

GAS-COOLED REACTOR PROGRAM. Semiannual Progress Report for Period Ending September 30, 1962

Description: Investigations carried out in support of the Experimental Gas-cooled Reactor included: performance analysis, structural studies, component development and testing, materials development, irradiation testing of components and materials, and development of experimental facilities. Design and development studies, system analyses, and determination of heat transfer anf fiuid fiow in packed sphere beds were carried out for the Pebble-Bed Reactor Experiment. Progress is also reported on investigation… more
Date: February 1, 1963
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ULTRASONIC ATTENUATION IN LEAD

Description: The absorption of longitudinal ultrasonic waves was studied as a function of transverse magnetic field in pure single crystals of lead at 1.2 deg K. The results were found to be generally consistent with the Fermi surface of lead suggested by Gold. In particular a detailed study of the magneto-acoustic oscillations, as a function of sample orientation and field direction, allowed the determination of some of the dimensions of the hole surface in the second Brillouin zone and revealed a number o… more
Date: January 1, 1963
Creator: Mackintosh, A.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

EVALUATION OF SURFACE ATTACHED THERMOCOUPLES DURING FORCED CONVECTION HEAT TRANSFER

Description: Metal-clad thermocouples with a flat (spade) tip were used to measure the temperature of a 0.030-in.-thick metal plate acting as a forced convection heat transfer surface. The thermocouples were found to change the temperature of the plate at the point of attachment by 40 percent of the temperature difference between fluid and plate. This value was found to be independent of fluid velocity, heat flux, and fluid temperature. A heat transfer model of the thernrocouple was developed and analyzed t… more
Date: June 17, 1963
Creator: Oetken, E.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Equipment for Hardness Testing at Elevated Temperatures

Description: The design and testing procedures of two elevatedtemperature hardness testers are described. One device uses a Rockwell tester with a large vertical capacity and a load range of 15 to 150 kg. The tester is equipped with a 900 deg C heating chamber which maintains an argon atmosphere over the specimen and can be laterally displaced by a cross-feed mechanism to allow repeated hardness readings to be made on the same specimen. The second instrument is a microindentation hardness tester for hardnes… more
Date: July 31, 1963
Creator: Hallerman, G. & Gray, R.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stress-Rupture Properties of Type 304 Stainless Steel Tubing

Description: A single heat of type 304 stainless steel tubing was burst tested in air to determine its stress-rupture properties at temperatures ranging from 1100 to 2200 c- F and times up to 4000 hr. The data are presented in graphic form showing log stress vs log time-to-rupture and log strain vs log time- to-rupture. The effect of specimen size on stressrupture behavior was examined as was the effect of testing in an atmosphere of 90 vol% He, 8 vol% N/sub 2/, 2 vol% O/sub 2/. Correlation of the data up t… more
Date: June 1, 1963
Creator: Venard, J. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Burnout Conditions for Nonuniformly Heated Rod in Annular Geometry. Water at 1000 PSIA

Description: Tests were run to determine the burnout conditions for a nonuniformly heated rod in an annular geometry. Two special electrically heated rods were used; the cosine rod, which gave an approximate cosine axial heat flux distribution; and the truncated cosine rod, identical to the cosine, except for one end cut short. The rod to be tested was placed in a circular tube test section to form the annular flow path for the water coolant. Only the rod was heated; the outer surface (tube) was essentially… more
Date: June 1, 1963
Creator: Janssen, E. & Kervinen, J.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DEVELOPMENT OF PLUTONIUM-BEARING FUEL MATERIALS. Progress Report, July 1 through September 30, 1962

Description: Characterization and sintering results indicate significant differences between UO/sub 2/--35 wt% PuO/sub 2/ and the compositions containing lesser (<20 wt %) amounts of PuO/sub 2/. PuO/sub 2/ has now also been prepared by plutonium hydroxide precipitation. Sintering studies have shown that satisfictory density is readily attained with these PuO/sub 2/ materials. Development of analytical chemistry procedures required for support of the fuel cycle program is continuing. The x-ray emission proce… more
Date: October 31, 1963
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tests of High-Efficiency Filters and Filter Installations at ORNL

Description: High-efficiency filters are used in air-handling systems as the primary means of minimizing the amount of radioactive particulate matter released to the atmosphere. The filtration efficiency is successfully measured in situ using an aerosol of dioctyl-phthalate and a forward light scattering photometer. Tests are made to determine the linearity of the Naval Research Laboratory type photometer, the precision of filter efficiency determinations, the effect of prolonged exposure to aerosol on filt… more
Date: June 1, 1963
Creator: Parrish, E.C. & Schneider, R.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Study to Determine Effects of Fission Product Gamma Radiation on Electronic Parts and Equipment. Progress Report No. 4, December 1, 1962-February 28, 1963

Description: The effects of gamma radiation on semiconductor digital circuit cards from the Naval Tactical Data System Shipboard Computer and associated equipment were investigated. During this reporting period five types of circuit cards were tested in a gamma ray environment up to 3 x 10/sup 5/ r/hr, and up to total exposures of 1.5 x 10/sup 4/ r. A total of twelve circuit card types were tested in this radiation environment during the contract period. No significant radiation effects were observed on the… more
Date: March 1, 1963
Creator: Magee, R. M. & Courtois, D. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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