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Lens Opacification in Mice Exposed to Monoenergetic Fast Neutrons

Description: The degree of lens opacification was studied as a function of age and time following exposure of mice to low and fractionated doses of monoenergetic fast neutrons, x radiation, and gamma radiation. A slit-lamp microscope was employed for visualization of the lens in the immobilized head of the mouse after the irises were dilated with 1% homatropine. The technique of lens examination is described and illustrated. Data collected at 26 weeks posttreatment indicate that 0.43-Mev neutrons are slight… more
Date: September 20, 1963
Creator: Bateman, J. L.; Bond, V. P. & Rossi, H. H.
Partner: UNT Libraries Government Documents Department
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RHOBURN: A NUCLEAR REACTOR CODE FOR CALCULATING BURNUP AND OPERATIONAL PARAMETERS FOR THE LPTR

Description: The RHOBURN program that determines various parameters for the Livermore Pool Type Reactor using a matrix of 840 cells, stored in two-dimensional form, is described. The code calculates the burnup of U/sup 235/on the basis of the megawatt days run during a fuel cycle and as a function of the neutron flux and fuel inventory in each of the 840 homogeneous cells in the reactor core. The thermal utilization and various other parameters for each core, and values for calculating the reactivity change… more
Date: August 20, 1963
Creator: Pefley, G.V. Jr.
Partner: UNT Libraries Government Documents Department
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HIGH-TEMPERATURE BERYLLIUM CORROSION PROTECTION. Phase Report, Coating Development and Evaluation Phase, September 22, 1961 to May 15, 1962

Description: Several coating techniques were studied with the objective of protecting beryllium neutron reflectors from oxidation during long-time grounnd testing of a SNAP-8 experimental reactor. The techniques include enameling, metallic slurry coating, and pack-cementation conversion coating. In addition, several commercial coatings for beryllium were evaluated. Based on screening and comparative oxidation evaluation studies an anodic coating was selected as being capable of affording the necessary prote… more
Date: March 20, 1963
Partner: UNT Libraries Government Documents Department
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Deflection of an Aluminum Sheet Into a Depression in a Graphite Block

Description: The purpose of this test was to determine the amount of deflection which could occur into the graphite cavity with a .032" thick sheet of 2219-T31 aluminum alloy.
Date: April 20, 1963
Creator: Schreiber, J.J. & Skoff, R.
Partner: UNT Libraries Government Documents Department
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Fuel element binder studies

Description: No Description Available.
Date: September 20, 1963
Creator: Yeoman, F. & Boltax, A.
Partner: UNT Libraries Government Documents Department
open access

Models for Fission-Gas Release From Coated Fuel Particles

Description: Mathematical relations are presented for estimating the release fractions of gaseous fission products from coated fuel particles and fuel elements containing them. The relations are based on simplified models of the release process, with particular emphasis on the following mechanisms: recoil, diffusion from fuel, diffusion through particle coating, and diffusion through fuel element matrix. The characteristics of fission-gas release by these mechanisms, acting singly and in combination, are co… more
Date: June 20, 1963
Creator: Prados, J.W. & Scott, J.L.
Partner: UNT Libraries Government Documents Department
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Spert Project Quarterly Technical Report, January-March 1963

Description: Additional data from the 3.2-msec-period destructive test were analyzed. Recovery and cleanup operations in the Spert I area were completed. Each of the 270 highly enriched, aluminum-clad fuel plates in the core was found to have experienced melting to some degree. The available data on the nature of the pressure pulse and on the condition of the core fuel plates at the time of the pulse are consistent with the hypothesis that the observed destructive effects were produced by a self-propagating… more
Date: May 20, 1963
Creator: Schroeder, F. ed.
Partner: UNT Libraries Government Documents Department
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Pathfinder Atomic Power Plant. Butterfly Valve Cavitation Test

Description: Tests were made on butterfly vaives similar to those used in the discharge leg of each of the three external recirculation loops of the Pathfinder reactor in order to determine the critical values of a dimensionless cavitation number ( /occurred in pu ) used to specify the limits of operation for reactor valves, at incipient cavitation. The experimentally determined values of the cavitation number were used to determine the cavitation-free control range of the Pathfinder valves. The tests showe… more
Date: March 20, 1963
Creator: Grimm, N.P.
Partner: UNT Libraries Government Documents Department
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Catalytic Hydrocracking of High Boiler in Nuclear Reactor Coolant

Description: Selective hydrocracking of total coolant was found to be an efficient and economic method for reconstitution of high boiler in the coolant to usable product. Such a process could eliminate the expense of vacuum distillation and disposal of high boilers produced in a nuclear reactor power plant. The selective conversion was possible since polyphenyls were found to be more susceptible towards hydrocracking as the phenyl chain length increased. Both cobalt molybdate on alumina and nickel oxide on … more
Date: May 20, 1963
Creator: Gardner, L.E.
Partner: UNT Libraries Government Documents Department
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SNAP Aerospace Safety Program Quarterly Technical Progress Report, July- September 1962

Description: Statements are presented concerning project objectives, major accomplishments in FY 1962, progress during the report period, evaluation of effort to date, and next report period activities. The subject material covers reactor separation and fuel element ejection, reactor transient and excursion tests, reactor end-of-life shutdown devices, fission product release studies, critical configuration tests, mechanical and thermochemical effects, and fuel element burnup and fission products dispersal. … more
Date: March 20, 1963
Partner: UNT Libraries Government Documents Department
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A PRELIMINARY REPORT OF BERYLLIUM DAMAGE OBSERVED IN THE MTR REFLECTOR

Description: Evidence of bowing was observed in an MTR beryllium shim rod section during the Cycle 184 shutdown. Inspection and measurements of this and other selected beryllium lattice pieces confirmed this observation. Preliminary measurements were made along a vertical transverse between the north and south reflector walls with some bowing again noted. An inspection of the north wall revealed cracking and spalling of the beryllium sections, primarily in the vicinity of the HB-2 thimble. (auth)
Date: June 20, 1963
Creator: Dykes, J.W. & Ford, J.D.
Partner: UNT Libraries Government Documents Department
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