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Compilation of Techniques Used By Vallecitos Radioactive Materials Laboratory (open access)

Compilation of Techniques Used By Vallecitos Radioactive Materials Laboratory

Equipment and techniques for remote examination of irradiated fuel assemblies applicable to the Maritime Program are described. The following subjects are covered: visual and photographic examination, dimensional measurements, gamma activity scanning, fission gas release and fuel rod void volume determinations, density measurements, metallographic examination, and radiochemical burnup analysis.
Date: February 1961
Creator: Brandt, F. A.; Mathay, P. W. & Zimmerman, D. L.
Object Type: Report
System: The UNT Digital Library
Pressure Drop Along a Fuel Cycle Fuel Assembly - Various Orifice Configurations (open access)

Pressure Drop Along a Fuel Cycle Fuel Assembly - Various Orifice Configurations

The objective is to establish, from test results, the relationship between pressure loss and orifice configuration, mass rate, and steam quality, for a Fuel Cycle fuel assembly.
Date: May 22, 1961
Creator: Janssen, E. (Engineer) & Kervinen, J. A.
Object Type: Report
System: The UNT Digital Library
Maritime Loop Irrradiation Program - Savannah I Fuel Irradiation: Progress Report First and Second Quarters, July, 1960-January, 1961 (open access)

Maritime Loop Irrradiation Program - Savannah I Fuel Irradiation: Progress Report First and Second Quarters, July, 1960-January, 1961

The General Electric Company is proceeding with an irradiation program to proof test a representative array of Savannah I fuel rods. Irradiation of a test assembly containing Savannah I fuel rods has begun and it is proposed that the results of this irradiation will permit an advance evaluation of the fuel performance and fuel burnup in the Savannah I reactor. This report covers the first two quarters of the reporting period. All aspects of the subject program have been consolidated and applicable portions are discussed in some detail.
Date: February 13, 1961
Creator: Marburger, I. L.
Object Type: Report
System: The UNT Digital Library
Large High Power Density Core - Interim Report I: Physics Description of Reference Design (open access)

Large High Power Density Core - Interim Report I: Physics Description of Reference Design

A reference design of a large high power density core has been established representing the available technology as of August, 1960. Reference core performance and cost should improve considerably after incorporation of improvements now under study.
Date: February 3, 1961
Creator: Miller, C. L.
Object Type: Report
System: The UNT Digital Library
VARI-II (open access)

VARI-II

Writing the VARI-II Program was motivated by the need for a method of analyzing the results for the Absorber Burn-Up Experiment in progress at the Vallecitos Atomic Laboratory.
Date: March 10, 1961
Creator: Russell, J. L. (John L.), Jr.
Object Type: Report
System: The UNT Digital Library
Preliminary Hazards Summary Report For The Vallecitos Superheat Reactor (open access)

Preliminary Hazards Summary Report For The Vallecitos Superheat Reactor

This Preliminary Hazards Summary Report has been prepared for submission to the United States Atomic Energy Commission in compliance with Part 50 of the regulations governing the licensing of production or utilization facilities, pursuant to the Atomic Energy Act of 1954, as amended, and contains the general information required by 10 CFR 50.34.
Date: February 1, 1961
Creator: General Electric Company
Object Type: Report
System: The UNT Digital Library
Swaging Over Unground Pellets (open access)

Swaging Over Unground Pellets

This study was designed to determine how swaging stainless steel over unground pellets will affect the integrity of fuel rods, and to find maximum pellet diameter variation that can be tolerated.
Date: January 25, 1961
Creator: Brown, R. L.
Object Type: Report
System: The UNT Digital Library
Low Frequency Amplifier IH-130-1 (open access)

Low Frequency Amplifier IH-130-1

A tranistorized d.c. coupled amplifier having very good gain stability, as well as very low drift of the output d.c. level, has been designed. Low frequency input signals with an amplitude of .04 to 2 volts peak-to-peak, approximately, coming from a low impedance source (voice soil of a speaker system) are amplified to an approximate peak-to-peak amplitude of 4 volts. The output is intended to drive a load of the order of 100 kohm.
Date: October 23, 1961
Creator: Llacer, Jorge
Object Type: Report
System: The UNT Digital Library
Magnetic Measurement of AGS Experimental Magnets (open access)

Magnetic Measurement of AGS Experimental Magnets

This is a preliminary report on the magnetic measurements taken to date on the AGS experimental magnets. It mainly summarizes the results which were necessary for the setting up of the proton separated beam in August 1961. A few curves on information obtained since then are included. When the study is finished, a complete report on all phases of the work, including the methods used, will be forthcoming.
Date: December 26, 1961
Creator: Danby, Gordon T.
Object Type: Report
System: The UNT Digital Library
Internal Bunching in the Alternating Gradient Synchrotron (AGS) (open access)

Internal Bunching in the Alternating Gradient Synchrotron (AGS)

Four methods of rebunching protons within Brookhaven's AGS are discussed. The first method involving switching off the old r-f and switching on the new r-f simultaneously with the new r-f increasing adiabatically seems impractical. Two other methods utilize gradual removal of the old r-f voltage and introduction of the new r-f voltage, or the reverse. Removal of the old r-f voltage followed by introduction of the new seems to give the best results. Several phase diagrams are included. (D.C.W.)
Date: January 16, 1961
Creator: Robertson, D. S.
Object Type: Report
System: The UNT Digital Library
Computations for AGS Experimental Beams: Description of Computer Program (open access)

Computations for AGS Experimental Beams: Description of Computer Program

Description of a computer program which optimizes the locations and strengths of magnets for experimental beams at the Brookhaven AGS written for the IBM 7090 computer. Layout, method, and routines are given particular attention, and representative data cards are shown.
Date: December 15, 1961
Creator: Baker, Winslow F.
Object Type: Report
System: The UNT Digital Library
Non-Linear Bunch Motion at Transition (open access)

Non-Linear Bunch Motion at Transition

A summary of the dynamic behavior of the proton bunches in the Brookhaven Alternating Gradient Synchrotron (AGS) has been given previously. In these reports, the usual linearization of the differential equations involved has been made and the theory was restricted to well bunched beams. The linearized approach is no longer valid at transition where the actual phase angle of the bunch can differ appreciably for a short time from the stable phase angle Φ₀. In this report the non-linearity of the differential equations for phase oscillations will no longer be neglected. At transition the beam is slow enough so that the electronics of the bootstrap system can be considered as being ideal and the radius servo loop can be characterized by one time constant. Under these assumptions the analysis can be carried out in a two-dimensional phase plane. The essential new result will be the short existence of a stable equilibrium point for the bunch motion not coinciding with Φ₀. The results here derived have been tested experimentally and at least a qualitative agreement was found. However, the conclusions are no more valid if debunching takes place since we have still neglected the finite bunch width.
Date: December 4, 1961
Creator: Hahn, Harald
Object Type: Report
System: The UNT Digital Library
Servo System for Magnetic Controlled Constant Intensity Flat Top Beam Spill-Out (open access)

Servo System for Magnetic Controlled Constant Intensity Flat Top Beam Spill-Out

A uniform intensity flat top spill-out cannot be obtained by manual control for two reasons: 1. The horizontal density of the internal beam of the Cosmotron is far from uniform. As a result, a manually controlled linear motion of the internal beam into a target will result in a non-uniform spill-out intensity. 2. Stability requirements of the Cosmotron magnet voltage are not easily met without feedback because of inherent component stability. The proposed servo system will sense the external beam intensity, and correct the magnet voltage to keep this intensity constant. This servo must operate through the transfer function of the main ignitron system and the flat top filter. Both of those transfer functions impose special problems.
Date: November 21, 1961
Creator: Cottingham, J. G.
Object Type: Report
System: The UNT Digital Library
Dynamics of Radiation Damage: A Report on Recent Results at BNL (open access)

Dynamics of Radiation Damage: A Report on Recent Results at BNL

A brief review of work on radiation damage in metals at low and moderate energies is presented. Work on a model representing Cu is discussed along with damage in a model of ordered Cu/sub 3/Au. The work is being extended to a model of Fe. (J.R.D.)
Date: 1961
Creator: Vineyard, George H.
Object Type: Report
System: The UNT Digital Library
Chemistry of Anhydrous Systems Containing Hydrogen Fluoride and Nitrogen Oxides (open access)

Chemistry of Anhydrous Systems Containing Hydrogen Fluoride and Nitrogen Oxides

Nitrosyl and fluoride ions are formed in liquid anhydrous hydrogen fluoride when nitric oxide, nitrogen sesquioxide, nitrogen tetroxide, or nitrosyl fluoride, are dissolved. Vapor infrared analysis was used to study the solution composition and gaseous reaction products. These solutions react with metallic uranium, plutonium, zirconium, iron, and aluminum, as well as ceramic uranium oxide and uranium carbide, forming soluble nitrosyl metal fluoride complexes and liberating nitric oxide. The uranium compound identified as nitrosylium hexafluorouranate, NOUF₆, was made volatile by passing nitrosyl fluoride gas over the dry salt at 500 deg C.
Date: 1961
Creator: Horn, Frederick, L.; Bartlett, Charles, B. & Tivers, Richard, J.
Object Type: Report
System: The UNT Digital Library
Effects of Insulin of Hepatic Glucose Metabolism and Glucose Utilization by Tissues (open access)

Effects of Insulin of Hepatic Glucose Metabolism and Glucose Utilization by Tissues

The mechanism whereby insulin lowers the blood glucose concentration is currently under extensive investigation. Despite the general agreement that the addition of insulin increases glucose uptake by various isolated tissues, the question has been raised whether administered insulin produces its blood sugar lowering effect in vivo primarily in increasing glucose uptake. Furthermore, it has been suggested that physiologically-released insulin may not exert the same effects as are produced by administered insulin. Attention has also been focused on whether insulin (exogenous or endogenous) exerts its action mainly or entirely on the liver and to what extent insulin influences glucose uptake and glucose production by the liver. The studies to be reported are a continuation of earlier work and are concerned with the effects of insulin, both exogenous and endogenous, on glucose utilization by the tissues and glucose production by the liver under various dietary condition in the unanethetized, intact dog, using C¹⁴ glucose.
Date: [..1961]
Creator: de Bodo, R. C.; Steele, R.; Altszuler, N.; Dunn, A. & Bishop, J. S.
Object Type: Report
System: The UNT Digital Library
The Application of Inert Fluidized Beds to the Volatility Reprocessing of Reactor Fuels (open access)

The Application of Inert Fluidized Beds to the Volatility Reprocessing of Reactor Fuels

In the reprocessing of spent solid fuels from nuclear reactors by direct volatilization, one of the major problems is the removal of heat from the highly exothermic gas-solid reactions. The use of fluidized beds of inert granular material as heat transfer media to control these exothermic reactions forms the basis of one approach to volatile reprocessing which is under development at BNL The engineering scale work carried out under this development program is discussed.
Date: 1961
Creator: Regan, W. H.; Reilly, J. J.; Wirsing, E. & Hatch, L. P.
Object Type: Report
System: The UNT Digital Library
"Crud" Scrubbing with a Purex-Type Zebra Cartridge (open access)

"Crud" Scrubbing with a Purex-Type Zebra Cartridge

Entrained solids have in the past been one of the major factors limiting solvent extraction fission product decontamination. These solids are known to be surface active, to absorb fission products, and to form interfacial films or "cruds". A major step in eliminating these cruds was taken when the Purex columns were modified to operate with the interfaces at the waste ends of the columns rather than the product ends. This type of operation tended to flush the solids out with the waste rather than the product streams.
Date: October 17, 1961
Creator: Richardson, G. L
Object Type: Report
System: The UNT Digital Library
The Recovery of Fission Product Rare Earth Sulfates from Purex LWW (open access)

The Recovery of Fission Product Rare Earth Sulfates from Purex LWW

A research and development program aimed at devising processes for the economical recovery of the potentially valuable long-lived fission products from Purex waste has been under wat at Hanford for several years. When this work has begun, the concentrated waste was primarily a nitric acid solution (6 to 10 M HNO3) containing the fission products and relatively small concentrations of iron, sulfate, and other corrosion products. Flowsheets based on classical separation schemes and rather similar to processes used by the Isotopes Division at the AEC's Oak Ridge operation served to separate the desired fission products from one another and from the corrosion products (1,2,3).These separation schemes employed careful step-wise pH adjustment to precipitate first the iron and then to separate the desired fission products from one another. The flowsheets were demonstrated on a pilot-plant scale with full-level plant waste. However, since the earlier work was complete, plant operations have been modified....
Date: May 10, 1961
Creator: Wheelwright, E. J. & Swift, W. H.
Object Type: Report
System: The UNT Digital Library
Effect of Gamma Radiation on the Physical Properties of Elastics (open access)

Effect of Gamma Radiation on the Physical Properties of Elastics

This article presents data on the effects of gamma radiation on the physical properties of a number of different classes of plastics materials of construction which were screened to determine their capabilities and limitations for service in applications where ionizing radiation exists. The irradiations were carried out in air at ambient temperature at normal atmospheric pressure to various gamma radiation doses up to 1*10^9 r depending upon the stability of the materials to radiation exposure. The different classes of materials and materials within a class are compared.
Date: January 20, 1961
Creator: Harrington, Robert
Object Type: Report
System: The UNT Digital Library
Power Tests for PRT Reactor (open access)

Power Tests for PRT Reactor

Startup and testing of the PRTR has been divided into three parts, Design Tests, Critical Tests and Power Tests. This document is the third of the series and describes the performance tests which will be made under nuclear power and the general schedule of operation. Responsibility for the startup of the reactor has been assigned to the PRTR Startup Council. The Power Test Sub-Council, which has done the planning of the initial power operation, was established by the Startup Council. Operation of the reactor will be the responsibility of the PRTR Operation (PRTRO).
Date: April 1, 1961
Creator: Lewis, W. R.; Atwood, J. M.; Dunn, R. E.; Evans, E. A.; Fox, J. C.; Peterson, R. E. et al.
Object Type: Report
System: The UNT Digital Library
Elastic Scattering of 31-Mev He3 Ions From Several Elements (open access)

Elastic Scattering of 31-Mev He3 Ions From Several Elements

The absolute differential cross sections for elastic scattering of 31-Mev He3 ions on Be, Al, Cu, Sn(nat), Sn120, and Bi have been measured in the angular range of approximately 10 to 120 deg in the center-of-mass system. Thin self-supporting foil targets were chosen to span the parameter A 1/3, where A is the target mass number. The first excited states of the isotopes of the above elements had sufficient energy separation from the ground state to enable elastic scattering to be resolved from inelastic scattering. The detection system, consisting of Cal(Tl) scintillation crystals, was capable of 3%pulse-height resolution and 1 degree angular resolution. Characteristically, the light-element angular distributions show strong diffraction effects. The differential cross section divided by the Rutherford cross section decreases exponentially at large angles for the heavy elements, and the differential cross sections break away from Rutherford behavior at angles which increase almost linearly with increase of atomic number of the target nucleus. A comparison of the results for natural tin, and tin enriched to 85% in Sn120, indicated that within the experimental uncertainties over the measured angular interval, there were no pronounced isotopic effects. The data are presented both in tabular and graphical form to allow …
Date: December 31, 1961
Creator: Igo, George; Markowitz, Samuel S. & Vidal, Jose G.
Object Type: Report
System: The UNT Digital Library
The Neutron-Deficient Yttrium Isotopes Y82, Y83, And Y84 (open access)

The Neutron-Deficient Yttrium Isotopes Y82, Y83, And Y84

The neutron-deficient yttrium isotopes Y82, Y83, and Y84 have been produced by irradiations with the Berkeley heavy-ion linear accelerator. Where possible, identifications were made by establishing genetic relationships with known daughter or granddaughter activities. The half-life of Y84 determined by direct decay is 39+-1 min. By a series of timed chemical separations, the following half-lives have been established: Y82, 9+-3 min; Y83, 8+-2 min. No information pertaining to the radiations emitted in the decay of three yttrium isotopes, other than Y84, has been obtained. The gamma-ray spectra of Y84 and Sr83 are shown.
Date: December 1961
Creator: Maxia, V.; Kelly, W.H. & Horen, D.J.
Object Type: Report
System: The UNT Digital Library
A Solution of the Distributional Error Problem in Cytophotometry (open access)

A Solution of the Distributional Error Problem in Cytophotometry

Use of that portion of the characteristic curve of photographic film in which transmission is linear with log exposure eliminates the distributional error and thus makes possible the assessment of total mass of an inhomogeneously distributed cell consistent without scanning or measuring the cell's projected area. Measurement consists of obtaining the difference in output of a photocell receiving the total light transmitted by a photomicrograph of the cell, and a photomicrograph of the microscope field illumination against which the cell was photographed. A method of making such measurements is given, and its basis is described.
Date: December 19, 1961
Creator: Adams, Lawrence R. & Sondhaus, Charles A.
Object Type: Report
System: The UNT Digital Library