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Aerothermodynamic analysis of the SNAP-27 fuel cask
An aerothermodynamic analysis of the SNAP-27 LEM fuel cask is presented for each of three mission aborts. Aerodynamic models for point mass and six degree-of-freedom trajectories are used, and the fuel cask heating rates and temperature responses are predicted for these trajectories. A survey of analytical and experimental studies of separated flow is related to the fuel cask, and a shock tunnel test program is outlined for further fuel cask analyses.
Date:
September 1, 1966
Creator:
McAlees, S., Jr.; Klett, R. D.; Pearce, B. E.; Larson, D. W.; Stephens, J. T. & Spahr, H. R.
System:
The UNT Digital Library
HAFEVER: An Inelastic Scattering Code for the IBM 704 Computer
Report issued by the APDA over HAFEVER, a code developed for the IBM 704 computer. As stated in the introduction, "HAFEVER is an IBM 704 code which calculates the energy exchange inelastic scattering cross section" (p. 3). Descriptions of the code and the theory behind the code are discussed. This report includes tables.
Date:
September 1960
Creator:
Friedman, M. A. & Zweifel, P. F.
System:
The UNT Digital Library
Conceptual design of an in-pile package loop for sodium-cooled thermal reactor fuel testing
Report issued by the APDA over a design study "of a facility for testing sodium-cooled thermal reactor fuel assemblies in the Advanced Test Reactor" (p. 5). The results are presented and discussed. This report includes tables, and illustrations.
Date:
September 15, 1961
Creator:
Blessing, W. G.
System:
The UNT Digital Library
Monthly report of activities: September 1, 1968
None
Date:
September 1, 1968
Creator:
unknown
System:
The UNT Digital Library
BIO-ORGANIC CHEMISTRY QUARTERLY REPORT. June through August,1962
This report covers the following titles: (1) Synthesis of compounds from {sup 14}CO{sub 2} by Chlorella in the dark following preillumination; (2) The effect of oxygen on formation of glycolic acid and other products during photosynthesis by Chlorella; (3) Phosphatase action on phosphoglycolic, 3-phosphoglyceric, and phosphoenolpyruvic acids in spinach chloroplast fragments in the presence and absence of high concentrations of methanol; (4) Absorption spectra of scattering samples. I. An evaluation of three different spectrophotometric techniques using Chlorella; (5) Absorption spectra of scattering samples. II. Scattered transmission spectra of leaves, chloroplasts, and quantasomes of spinach; (6) The effect of sonication of spinach chloroplasts on photosynthetic phosphorylation; (7) Concerning the occurrence of {alpha},{alpha}-tocopherol and {alpha}-tocopherylquinone in chloroplasts and quantasomes; (8) Effects of ultraviolet and gamma radiation of thymine in frozen aqueous solution and in the solid state; and (9) A rapid method for the identification of small quantities of lipid-soluble vitamins and quinones in biological material.
Date:
September 26, 1962
Creator:
unknown
System:
The UNT Digital Library
MEASUREMENT OF POLARIZATION IN pi- p ELASTIC SCATTERING FROM 229TO 3 90 MeV
The polarization parameter in elastic {pi}{sup -}p scattering has been measured, at the Berkeley 184 synchrocyclotron,l with the use of a polarized proton target. At 318, 337 and 390 Mev incident pion kinetic energy, the angular range from 70{sup o} to 180{sup o} in the center of mass system was covered. At 229 Mev polarization measurements were made in the angular range 150{sup o} to 180{sup o}. Phase shift analyses using these and other published data were made at the two lowest energies.
Date:
September 1, 1967
Creator:
Arens, John F.; Chamberlain, Owen; Dost, Helmut E.; Hansroul,Michel J.; Holloway, Leland E.; Johnson, Claiborne K. et al.
System:
The UNT Digital Library
CHEMICAL EVOLUTION OF LIFE AND SENSIBILITY
None
Date:
September 1, 1966
Creator:
Calvin, Melvin
System:
The UNT Digital Library
The Republic Of China: Political and Economic Development, 1969
This report
Date:
September 2, 1969
Creator:
Colwell, Carolyn K.
System:
The UNT Digital Library
The Strike of the United Farm Workers Organizing Committee in Delano, California: Background and its Relationship to Legislative Efforts to Organize Farm Workers.
This report addresses the Strike of the United Farm Workers Organizing Committee in Delano, California,Background and its Relationship to Legislative Efforts to Organize Farm Workers.
Date:
September 20, 1968
Creator:
Guy, Kent
System:
The UNT Digital Library
Equilibrium panel surface temperatures in the SNAP-2 instrument compartment
By equating net radiation to space to I/sup 2/R heating in the SNAP-2 instrument compartments, and neglecting internal radiation between compartments, the panel surface equilibrium temperatures were computed for hot and cold temperature extremes. These extremes are defined by: (1) cold - pre-start phase in the shade, (2) hot - full power phase facing the sun. The results of the heat balances for hottest and coldest cases are presented graphically. These figures relate the equilibrium surface temperatures to the I/sup 2/R heat load dissipated by the panel surface for hot and cold orbits before and after startup. Included as parameters are effective panel area (dependent on Agena-interface design details) and the ..cap alpha../epsilon ratio for the surface coating. If ..cap alpha../epsilon = .3/.9 and A = 1 ft/sup 2/, the extremes of temperatures suffered are from -191/sup 0/F to +212/sup 0/F. This study shows that the normal R/C surface coating (..cap alpha../epsilon = .3/.9) is acceptable regarding allowable maximum surface temperatures, if the effective panel area is not less than 1 ft/sup 2/. It also indicates that further work is warranted regarding internal radiative distribution of heat in order to limit the lowest temperatures to -65/sup 0/F.
Date:
September 14, 1962
Creator:
Gresho, P. M.
System:
The UNT Digital Library
Aerospace nuclear safety report for August 1967
The AEC Safety Branch advised that the present outlook for a potential mission using four modified SNAP-3 type generators is rather negative. Drop tests of four SNAP-19 intact reentry heat source capsules were conducted at the Tonopah Test Range. A preliminary GE SNAP-27 safety analysis was reviewed. Three arc tunnel tests were conducted at low heat fluxes. Debris were collected on downrange impactors from all tests. The rapid helium depressurization test on fuel microspheres was conducted by Battelle; preliminary examination of the fuel revealed no obvious change in microsphere characteristics.
Date:
September 1, 1967
Creator:
Illing, R.G. (comp.)
System:
The UNT Digital Library
Power source frequency considerations
None
Date:
September 1, 1962
Creator:
Faught, H. F.
System:
The UNT Digital Library
Post-irradiation examination of in-pile stress-rupture specimens (ORR S-2 and ORR S-3)
Hastelloy-N fuel cladding tube specimens were stress-rupture-tested in-pile at the Oak Ridge National Laboratory. Two cladding heats were tested at 1400/sup 0/F; hoop stresses ranged from 8000 psi to 26,000 psi. The tubes were then shipped to the Atomics International Hot Laboratory where cladding visual examination, dimensional measurement, and metallographic analysis were performed. Average cladding creep ductility was 1.2%. Cladding failures were intergranular, with some secondary cracking noted. Both cladding ductility and rupture life were reduced by irradiation.
Date:
September 29, 1967
Creator:
Johnson, L. L.
System:
The UNT Digital Library
Evaluation of Beta Radiation as a Hydrogenation Catalyst: Interim Technical Status Report for the Period March 1, 1962 to October 31, 1963
From abstract: The concept of using high intensity beta radiation from an isotopic source, Sr-90, inside a high temperature, high pressure chemical reactor has been developed for potential radiation chemical processes. Distinct advantages include high utilizable intensity from a relatively small source with a minimum of shielding against external radiation.
Date:
September 11, 1964
Creator:
Yavorsky, P. M. & Gorin, E.
System:
The UNT Digital Library
Feasibility Study of a New Mass Flow System : Quarterly Report No. 5 Covering the Period from June 1, 1961 to August 31, 1961
This is the fifth quarterly report that documents a system of mass flow that can record measurements of homogeneous flow, slurries, highly corrosive fluids and multiphase fluids, additionally considering pressure drops, measuring external to the flow, ruggedness and reliability.
Date:
September 20, 1961
Creator:
Haffner, J. W. & Genthe, William K.
System:
The UNT Digital Library
Feasibility Study of a New Mass Flow System : Quarterly Report No. 1 Covering the Period From June 1 to September 1, 1960
The following report describes a mass flow system that can measure homogeneous flow, slurries, highly corrosive fluids and multiphase fluids, with the addition of considering pressure drops, measuring external to the flow, ruggedness and reliability.
Date:
September 21, 1960
Creator:
Burgwald, G. M. & Genthe, William K.
System:
The UNT Digital Library
Leakage Neutron Spectrum of U²³³ Critical Assembly
Abstract: "The leakage neutron spectrum of a U²³³ spherical critical assembly (Jezebel) has been measured using nuclear emulsions as radiator and detector. The spectrum obtained is compared with similar measurements on the U-235 and Pu-239 analogues of Jezebel U²³³; it is found to agree closely with that of the Pu-239 assembly and to be harder than that of the U-235 assembly. All three spectra are compared with theoretical spectra obtained from a numerical approximation to the neutron transport equation."
Date:
September 1962
Creator:
Bobisud, Larry E.
System:
The UNT Digital Library
A Monte Carlo Calculation of the Neutron Detection Efficiency of a Hydrogen Bubble Chamber
Abstract: "The calculation of the efficiency of the Los Alamos hydrogen bubble chamber for detection of neutrons in the energy range 5 to 35 MeV has been done using a "Monte Carlo" technique. The detection efficiency is calculated as a function of energy of the neutron and angle of the proton recoil."
Date:
September 1962
Creator:
Wooten, J. K. & Bryant, H. C.
System:
The UNT Digital Library
A Study of Desalting Plants (15 to 150 mgd) and Nuclear Power Plants (200 to 1500 MWt) for Combined Water and Power Production: Final Report
From foreword: This study is concerned with the technology of producing fresh potable water from the seas.
Date:
September 1964
Creator:
Catalytic Construction Company
System:
The UNT Digital Library
Determination of uniaxial mechanical properties of unirradiated and irradiated Hastelloy-N bar and biaxial stress-rupture properties of chromized and coated unirradiated Hastelloy-N
Short-time tensile tests were conducted on irradiated (2 x 10/sup 20/ nvt) and unirradiated Hastelloy-N bar from heats 5911 and 6252. No significant difference in mechanical properties was noted between the two heats. The 1200/sup 0/F ultimate tensile strength was decreased by irradiation from 65 to 80 ksi and 48 to 52 ksi. The 1400/sup 0/F ultimate tensile strength was decreased from 45 to 51 ksi to 32 to 34 ksi. The yield strength was not greatly affected by irradiation at either 1200 or 1400/sup 0/F. The 1200/sup 0/F elongation at fracture was decreased from 15 to 45% to 5 to 11%. The 1400/sup 0/F ductility was decreased from 8 to 26% to 1 to 1-1/2%. Unirradiated uniaxial stress-rupture tests were conducted at both AI and ORNL. No definite difference in stress-rupture properties between heats was noted at either 1200 or 1400/sup 0/F in ORNL tests, although some of the 1400/sup 0/F stress-rupture tests indicated that heat 6252 exhibited greater ductility. The AI verification tests showed a definite ductility difference, with heat 6252 exhibiting greater ductility. This phenomenon was attributed to an inhibition in crack propagation due to microsegregation.
Date:
September 8, 1967
Creator:
Stearns, J.D.
System:
The UNT Digital Library
Low-cycle fatigue testing of irradiated Hastelloy-N (ORR S-2)
Hastelloy-N strip specimens were irradiated in the Oak Ridge Research Reactor at temperatures of 1330 to 1390/sup 0/F, to neutron doses of 1.8 to 2.6 x 10/sup 20/ nvt thermal, l.4 to 2.0 x 10/sup 19/ nvt fast. Twelve irradiated specimens were selected for testing from each of two heats, 0143 (0.010 in. thick) and 5911 (0.015 in.). Six specimens in each heat were as-received, the other six were as-processed. Processing steps included chromizing, a simulated coating firing cycle, diffusion treatment, and straining to simulate tube straightening. In-cell fatigue tests were performed by reverse-bend cycling over mandrels of opposing radii at one cycle per minute, in helium, at 1400/sup 0/F. The twelve specimens tested at strain ranges of 0.61 to 0.75% had an average fatigue life of 97 cycles. Only seven of the specimens tested at strain ranges of 0.31 to 0.37% failed; five remained intact after 25,000 cycles. The average fatigue life for all 0.31 to 0.37% specimens was 15,840 cycles, with no weighting factor used for intact specimens. Experimental results were four times greater than the predicted fatigue life at the higher strain range, fifty times greater at the lower. The Manson method for prediction of Hastelloy-N fatigue …
Date:
September 28, 1967
Creator:
Krupp, W. E. & Johnson, L. L.
System:
The UNT Digital Library
Outline of Geology of the U12j and U12j.01 Tunnels, Nevada Test Site
Description and outline of the geology of the U12j and U12j.01 tunnels in the Survey Butte Member of the Piapi Canyon Formation in Nevada.
Date:
September 1962
Creator:
Laraway, W. H. & Houser, F. N.
System:
The UNT Digital Library
Geologic Map of the Timber Mountain Quadrangle, Nye County, Nevada
Map of the Timber Mountain Quadrangle in Nye County, Nevada.
Date:
September 1964
Creator:
Carr, Wilfred James & Quinlivan, W. D.
System:
The UNT Digital Library
Gamma-Radioactivity Investigations Related to Waste Disposal, Jackass Flats, Nevada Test Site
From introduction: Under the general supervision of the Health Division of the Los Alamos Scientific Laboratory, the U.S. Geological Survey is participating in geologic and hydrologic studies of the tile field constructed in Jackass Flats in the southwestern part of the Nevada Test Site as related to waste disposal, M. D. Shutler rendered valuable assistance in obtaining and evaluating portions of the data in this report. These investigations were done on behalf of the U.S. Atomic Energy Commission and were supported by the Division of Reactor Development and by the Albuquerque Operations Office.
Date:
September 1962
Creator:
Bunker, C. M. & Bradley, W. A.
System:
The UNT Digital Library