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Atomic Energy Commission Reports
243
NACA Research Memorandums
189
AEC research and development report
79
Hanford Works Reports
65
North American Aviation Reports
56
HW (Series)
52
NACA Technical Reports
41
General Electric Company Atomic Power Reports
38
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Note on Power Recovery From Warm Water
Several studies of power recovery from Hanford pile effluents have been made, from which the conclusion can be drawn that, while recovery of power is feasible, it is costly because of the large volume of vapor which must be handled per kilowatt-hour of energy provided. This note is to call attention to the possibility of developing cheaper machinery than the conventional low-pressure turbine stages considered in previous studies through use of a water expansion cycle.
Date:
November 15, 1956
Creator:
Wood, E. C.
Object Type:
Report
System:
The UNT Digital Library
Pilot Plant Dissolution of Unjacketed Fuel Elements
In the fall of 1952, a pilot plant batch dissolution study was carried out to obtain the data required for the design of the Purex Plant dissolvers. Particular emphasis was placed on the rate of dissolution and the efficiency of nitrogen oxide recovery from the dissolver off-gas. The results are presented in this report.
Date:
October 15, 1956
Creator:
Evans, T. F.
Object Type:
Report
System:
The UNT Digital Library
Effects on the Inhour Equation for Reactors Fueled with Mixtures of Fissionable Material
The determination of various parameters such as thermal utilization, resonance escape probability, control rod calibrations and etc. is often accomplished by the measurement of the pile period due to some given perturbation. With the present thoughts being directed towards plutonium fueled reactors, it was felt worthwhile to discuss a few of the basic differences in pile neutron behavior due to the smaller fraction of delayed neutrons per fission of Pu239 and the larger fraction of delayed neutrons per fast fission of U238 than occurs from fission of U235 alone.
Date:
June 15, 1956
Creator:
Astley, E. R.
Object Type:
Report
System:
The UNT Digital Library
NO₂ Exposures from Operations in the 224 U Building
As recommended in a previous report a study of the NO₂ and HNO₃ exposures of plant personnel in the 224 U Building has been made. Concentrations of NO₂ and HNO₃ from the 224 U roof stack, in the concentrator cells, and in the calcining pot rooms have been determined. The problems have been outlined and recommendations have been made for its alleviation.
Date:
May 15, 1956
Creator:
Gill, W. E.
Object Type:
Report
System:
The UNT Digital Library
Absorption by Soil of Strontium From 216-S Crib Waste
A preliminary soil column experiment with a waste sample from the 207-S-11 well, which monitors the 216-S cribs, indicated that cesium was absorbed almost completely by the soil but that strontium breakthrough to ground water in the near future seemed likely. Accordingly, it was suggested that the 216-S wastes be discharged to a new disposal site, and that samples of the wastes which are currently being discharged to the 216-S cribs be obtained for soil absorption tests. The primary purpose of these tests was to obtain data which could be used to suggest ways and means of improving the absorption of strontium by soil from the process condensate stream (D-2_ and the cell drainage stream (D-1), both of which have been discharged to the 216-S cribs for the past several months.
Date:
February 15, 1956
Creator:
Rhodes, D. W.
Object Type:
Report
System:
The UNT Digital Library
A Simultaneous Scaler Control System
The primary purpose of this writeup is to present a description of the electrical and mechanical features of the developed system for use in maintenance and operation of a simultaneous scaler control unit.
Date:
August 15, 1955
Creator:
Tomlinson, R. L.
Object Type:
Report
System:
The UNT Digital Library
The Study of a Method of Assaying the Approximate Isotopic Ratio in Uranium
A method for determining the appropriate isotopic content of uranium-235 in uranium slugs has been investigated. In the conduct of the experiment it was found that there was a background counting rate several times the counting rate of the phenomena under study. Methods are suggested for improving the counting rate and reducing the background. The conclusions at this time are that reactivity determinations will provide the most rapid and precise measure of U-235 content in uranium.
Date:
July 15, 1955
Creator:
Thiele, A. W.
Object Type:
Report
System:
The UNT Digital Library
Final Report Production Test 105-585-A Functional Testing of Teflon Flexible Connector, 105-C Type
A new type of flexible hose connector consisting of a Teflon tube enclosed in a stainless steel wire braid sheath was proposed for use on 105-C rear face in late 1954. A test was initiated to determine the suitability of Teflon, and specifically Fluoroflex Teflon compound for rear face application. Probable useful life limit is estimated at 10⁶ R, which would be attained in about three years in contact with fresh effluent.
Date:
July 15, 1955
Creator:
Cooke, J. P.
Object Type:
Report
System:
The UNT Digital Library
Feasibility Report 100-DR WAPD Test Loop
The purpose of this report is to present a HAPO proposal for the design and construction of a high-temperature, high-pressure light water recirculation test facility for the Westinghouse Electric Corporation, Atomic Power Division This report does not attempt to justify the feasibility of site location nor does it attempt to elaborate on such technical considerations as permissible test specimen heat generation and enrichment requirements which have been covered in an earlier document. Instead, detail information is developed on the proposed design with major emphasis on detail descriptions of the proposed loop and auxiliaries, design and construction scheduling and costs, and operating costs.
Date:
March 15, 1955
Creator:
Engineering Department, Hanford Atomic Products Operation, General Electric Company
Object Type:
Report
System:
The UNT Digital Library
The Alpha Half-Life of the Isotope Pu-241
A plutonium solution of known Pu-241 content was purified by solvent extraction techniques to remove uranium and americium impurities. Portions of this purified solution were then analyzed for U-237 as a function of time. Since the growth of U-237 occurs directly by the alpha decay of Pu-241, these measurements provided sufficient data for calculation of the Pu-241 alpha half-life, which was found to be 2.91 ± 0.50 x 10⁵ years.
Date:
February 15, 1955
Creator:
Gift, M. W.
Object Type:
Report
System:
The UNT Digital Library
The Flame Photometric Determination of Tributylphosphate
The study of the flame photometric method for determining the concentration of tributylphosphate (TBP) in a hydrocarbon diluent was undertaken because it showed promise of being economically competitive and subject to fewer interferences than the existing methods. The determination of TBP in the hydrocarbon solutions throughout the range 0.01 to 80 per cent TBP may be performed using the flame photometer. The principal conclusions resulting from the study found a that there was higher precision in the one to two percent TBP rang than the 45 per cent TBP level due to error in reproducing narrow slit width in the higher range, 2) nitric acid, uranyl nitrate, and thorium nitrate all interfere if present but can be eliminated by contacting the solution with water or sodium carbonate solution. 3) a single determination may be made in 15 minutes, multiple determinations can be made at a rate of one to two minutes per determination, and 4) a modification of an existing method makes possible the application of this method to the determination of TBP dissolved in aqueous samples. A relative precision of plus of minus five per cent (95 per cent confidence level) is obtained.
Date:
December 15, 1954
Creator:
Brite, D. W.
Object Type:
Report
System:
The UNT Digital Library
Stratospheric Monitoring Program
"Results of the continuing stratospheric flight test evaluation program for the Del Model I Electrostatic Precipitator Sampler and the Del Electrical Discharge Altimeter are described and discussed. Only one of four balloon launches reached floating altitude. The altimeter obtained an altitude recording consistent with concurrent aneroid barocoder readings. The reported gross gamma concentration for the precipitator sampler was approximates 25 and 80% higher than those of the two simultaneous direct flow filter samples. The completion of the design and construction of two prototype units of the Del Electrical Discharge Altimeter and their laboratory evaluation are described. A preliminary design concept is presented for an operational high volume electrostatic precipitator sampler to operate with high collection efficiency at an ambient flowrate of 500 cfm throughout the altitude range 100,000 to 150,000 ft."
Date:
March 15, 1963
Creator:
Cravitt, S.; Lilienfeld, P.; Foldes, A. & Lippmann, M.
Object Type:
Report
System:
The UNT Digital Library
Interpretation of Westwood, New Jersey Rainfall Data
"Progress is reported in an evaluation of fission product concentration in rain as a function of time, location, and meteorological setting. Data on rainfall collected at Westwood, N. J., were analyzed for information on the mechanisms of fallout deposition, seasonal variations in fallout, the stratospheric residence time of W/sup 185/ resulting from Operation Hardtack, and the accuracy of pot samplers for sample collection. Data from other collection stations were also analyzed for consistency with Westwood data."
Date:
September 15, 1959
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Motion of a Charged Particle Near a Zero Field Point
"The behavior of charged particles in a plasma-free cusp field, or in a cusp field where there is very little plasma, is studied. The numerical computations described may provide a valid picture of the behavior of particles outside such a body of plasma or in the early stages of creation of such a cusped plasma in the low- beta limit. The computations provide a striking illustration of orbits which neither have constant magnetic moment nor behave so irregularly as to defy explanation."
Date:
July 15, 1961
Creator:
van Norton, Roger
Object Type:
Report
System:
The UNT Digital Library
The Effect of Temperature on the Width of a Small-Amplitude, Solitary Wave in a Collision-Free Plasma
"Adlam and Allen and Davis, Lust, and Schluter have studied nonlinear plane-waves, propagating normal to the magnetic field, in a cold plasma. One solution of particular interest is a solitary wave, or single pulse. We present a method for solving the analogous problem for a plasma with finite temperature, in the limiting case where the amplitude of the wave is small and where, consequently, the width of the waver is very large."
Date:
March 15, 1961
Creator:
Gardner, Clifford S.
Object Type:
Report
System:
The UNT Digital Library
On the Green's Function for Two-Dimensional Magnetohydrodynamic Waves. II
"As an extension of an earlier paper the Green's function is evaluated for the Lundquist equation linearized about uniform magnetic field, constant matter density, and zero flow velocity. It is assumed that all quantities are functions of two space variables and time only. In the general magnetic field configuration considered here a pure Alfvén disturbance no longer exists; there is instead a wave with properties of both the Alfvén and fast‐slow disturbance."
Date:
December 15, 1960
Creator:
Weitzner, Harold
Object Type:
Report
System:
The UNT Digital Library
An Algorithm for Construction Feasible Schedules and Computing Their Schedule Times
"An algorithm for the generation of feasible schedules and the computation of the completion times of the job operations of feasible schedule is presented. Using this algorithm, the distribution of schedule times over the set of feasible schedule—or a subset of feasible schedules—was determined for technological orderings that could occur in a general machine shop. These distributions are found to be approximately normal. Biasing techniques corresponding to “first come first serve,” random choice of jobs ready at each machine and combinations of these two extremes were used to compute distributions of schedule times."
Date:
November 15, 1960
Creator:
Heller, Jack & Logemann, George
Object Type:
Report
System:
The UNT Digital Library
Some Problems in Linear Graph Theory That Arise in the Analysis of the Sequencing of Jobs Through Machines
"The problems of sequencing jobs through machines are discussed in a linear graph framework. The construction of feasible schedules from given technological orderings is related to the construction of transitive graphs from given component graphs. Methods of constructing transitive graphs are given and bounds on the number of different transitive graphs constructed from given components are determined. A recursive convex function defined on the transitive graphs-the job operation completion time and schedule time-is studied. Bounds on the number of different values that the schedule time can attain is obtained. Examples of multiprogramming, flow shop and machine shop scheduling are studied."
Date:
October 15, 1960
Creator:
Heller, Jack
Object Type:
Report
System:
The UNT Digital Library
The Numerical Solution of a Parabolic System of Differential Equations Arising in Shallow Water Theory
"A finite difference approximation to a non-linear set of parabolic differential equations arising in shallow water theory is given. These difference equations were used to determine the shape and rate of propagation of a hum of fluid down a channel of constant depth. The hump of fluid was found to spread instead of steepen, as is the case in the usual shallow water theory."
Date:
October 15, 1960
Creator:
Heller, Jack & Isaacson, Eugene
Object Type:
Report
System:
The UNT Digital Library
Theory of Cusped Geometries
"The loss of particles through a cusp of a particular containment geometry utilizing cusped magnetic field lies is considered. A velocity space loss criterion analogous to the loss cone in the mirror machine is derived. The effect of a uniform longitudinal magnetic field perpendicular to the containing field is considered and a loss criterion is derived. The effect of the longitudinal field is to decrease cusp losses.
Date:
November 15, 1960
Creator:
Kileen, John
Object Type:
Report
System:
The UNT Digital Library
Equilibrium Configuration of a Plasma in the Guiding Center Limit
"We compute the equilibrium configuration of a collision-free plasma contained in an axially symmetric magnetic field. The plasma is characterized by a non-scalar pressure tensor which is obtained from a microscopic distribution function in a form suggested b the guiding center approximation. The solution is calculated in the limit where the ratio of the width to the length of the plasma region and the ratio of the gas to the magnetic pressure are both small. Boundary values at the midplane as well as the shape of the plasma appear as arbitrary parameters in the solution. We give the solution to a corresponding scalar pressure problem for comparison."
Date:
September 15, 1960
Creator:
Oppenheim, Alan
Object Type:
Report
System:
The UNT Digital Library
Utilization of Radiactive Isotpoes in Coal Process Research
"This is the third quarterly report on Task II dealing with Methods Development for Radio-Tracing of Coal Product Hydrocarbons With Tritium. The problem of accurate low-level tritium assay for tagged hydrocarbons has been resolved and attention is now primarily directed at the questions of tritium mobility and radio-chemical purity in tagged tracers."
Date:
February 15, 1961
Creator:
Yavorsky, P. M. & Gorin, E.
Object Type:
Report
System:
The UNT Digital Library
Utilization of Radiactive Isotpoes in Coal Process Research
"With careful attention to details, tritium assays of satisfactory accuracy have been achieved on low activity standard samples by dry combustion and liquid scintillations counting of the product water.This method is faster, more accurate and dependable than the zinc fusion-ion chamber method fro low level tritium assays. At 380 degrees C, tritium loses from hydrocarbon tracers by isotopic exchange is significant and must be corrected for in tracer measurements at this elevated temperature."
Date:
November 15, 1960
Creator:
Yavorsky, P. M. & Gorin, E.
Object Type:
Report
System:
The UNT Digital Library
Utilization of Radiactive Isotpoes in Coal Process Research
"This is the first quarterly report on Task II of the subject Utilization of Radioactive Isotopes in Coal Process Research. There were two separate projects on Tank I; I. methods Development for Tritium Labeling of Coal Product Hydro-carbons, and II. Applications of Radio-Tracer Techniques to the Study of Fluidized Particle Mechanics. The following extended work on Task II concerns only Methods Development of Radio-Tracing With Tritium."
Date:
August 15, 1960
Creator:
Yavorsky, P. M. & Gorin, E.
Object Type:
Report
System:
The UNT Digital Library