Reactor radiation shielding
Design and analysis of radiation shields for nuclear rocket systems
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Design and analysis of radiation shields for nuclear rocket systems
Programs manual for one-dimensional and two- dimensional steady state models of catalyzed hydrazine decomposition reaction chambers
Thermal conductivity of neutron irradiated copper at low temperature noting lattice defects
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Discussing monitors for determining burnup rate of enriched uranium 235 fuel in fast neutron environment
Calculated estimates of gas core nuclear rocket engine weights for specific impulses ranging from 3000 to 7000 seconds and for engine thrusts ranging from 4400 to 440,000 newtons
Feasibility analysis of open-cycle gas-core nuclear rocket engine
Mathematical model for computerized evaluation of Sabatier reaction kinetics in oxygen recovery from carbon dioxide
Heavy-atom model parameter change, seed gas addition, and reflective end-wall effects on nuclear light bulb engine calculations of fuel region radiation emission spectra
Radio frequency induction heating plasma generator design and fiber optic scanner for simulation of nuclear light bulb engines
Criticality experiments using spherical gas core to provide benchmark results for cold conditions of typical nuclear rocket concept
Quantitative measurements of liquid hydrazine residence times as function of absorbed gas condition of catalyst and liquid hydrazine/catalyst temperature
Criticality study of ZPR-1 and ZPR-2 with 25.4-cm diameter cylindrical stainless steel cores
Numerical analysis of effects of transient response in catalytic ignition system to promote hydrogen-oxygen combustion
Design and operation of split fueled cores with axial heat pipes for 350 kwe out-of-core thermionic power converter system
Tabulated data are presented on the costs, schedules, and technical characteristics for the space station phases C and D program. The work breakdown structure, schedule data, program ground rules, program costs, cost-estimating rationale, funding schedules, and supporting data are included.
Heating rate measurements made in a mock-up of a BeO heat shield for a gas core nuclear rocket engine yields results nominally a factor of two greater than calculated by two different methods. The disparity is thought to be caused by errors in neutron capture cross sections and gamma spectra from the low cross-section elements, D, O, and Be.
A constricted sliding spark discharge is used to generate a high density, high temperature uranium plasma. Uranium particle densities up to 10 to the 20th power per cu cm are obtained over a temperature range of 30,000 to 50,000 K. The device consists of a capillary discharge channel lined with pressed and sintered UO2. A 250 joule capacitor bank is discharged into the channel, producing a plasma of 10-20 microsec duration. Spectroscopic observations are made over the spectral range of 1300 to 2500 A.