Study of heat sensitive radioisotopes for temperature measurement application Final report
Heat sensitive radioisotopes for temperature measurements in rocket nose cones
RADIOACTIVE ISOTOPE↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Properties of radioisotope heat sources, part I Final report, 25 Mar. - 31 Aug. 1965
Nuclear, chemical, and physical properties of SNAP radioisotopes with annotated bibliography
ISOTOPE↗
Radioisotope heating of contact ionizers
Radioisotopes for heating ionizers in contact ionization thrustors
IONIC PROPULSION↗
Preliminary design and vehicle integration of a Pu-238 radioisotope Brayton-cycle power system for MORL.
Plutonium-238 radioisotope Brayton cycle power system design and vehicle integration
BRAYTON CYCLE↗
Measurement of blood flow by external monitoring of radioisotopes.
Measurement of blood flow by external monitoring of radioisotopes
MONITOR↗
Parametric analysis of radioisotope thermionic generators
Parametric analysis of radioisotope thermionic generators
POWER GENERATOR↗
Dynamic testing of SNAP III radioisotope thermoelectric generator
Dynamic method of measuring output power characteristics of radioisotope thermoelectric generator
OUTPUT↗
Projected large scale use of radioisotopes by NASA
Projected large-scale use of radioisotopes by NASA
RADIOACTIVE ISOTOPE↗
Radioisotope heating of contact ionizers
Radioisotope heating of ionizers in contact ionization thrustor in primary electric propulsion systems
RADIOACTIVE ISOTOPE↗
Some reliability/efficiency aspects of low input voltage inversion/conversion from radioisotopic thermoelectric generator power sources
Reliability and efficiency of low input voltage inversion/conversion from radioisotopic thermoelectric generator power sources
RADIOACTIVE ISOTOPE↗
A program for calculating optimum dimensions of alpha radioisotope capsules exposed to varying stress and temperature
Method and computer program for calculating creep and optimizing dimensions of capsules filled with alpha-emitting radioisotopes and exposed to varying stress and temperature
CREEP↗
Brayton-cycle radioisotope heat-source design study. Phase II /preliminary design/ report
Brayton cycle radioisotope heat source design
RADIOACTIVE ISOTOPE↗
Brayton-cycle radioisotope heat source design study. Phase I - /Conceptual design/ report
Conceptual designs for radioisotope heat source systems to provide 25 kW thermal power to Brayton cycle power conversion system for space applications
ELECTRIC POWER CONVERSION↗
Radioisotope and radiation techniques for terrestrial and planetary gas and solid measurements.
Radioisotope and radiation techniques for terrestrial and planetary gas and solid measurements
RADIATION MEASUREMENT↗
Feasibility tests of a radioisotope-type ablation-measuring system.
Feasibility of making continuous measurements of ablation of spacecraft heat shield by use of radioisotopes embedded in heat shield
RADIOACTIVE ISOTOPE↗
Some reliability/efficiency aspects of low input voltage inversion/conversion from radioisotopic thermoelectric generator power sources.
Voltage transformation and power/energy utilization of radioisotopic thermoelectric generator source /RTG/ for space applications, analyzing components, inverter/converter circuits, etc
RADIOACTIVE ISOTOPE↗
Radioisotope heating for contact ionization thrustors.
Radioisotope heating for ionizer temperature of contact ionization thrustors for satellite attitude control and stationkeeping, studying power source mass saving
RADIOACTIVE ISOTOPE↗
Program for calculating optimum dimensions of alpha radioisotope capsules exposed to varying stress and temperature
A method and computer program were developed for calculating the creep and optimizing the dimensions of capsules filled with alpha-emitting radioisotopes. The method solves an integral equation that was developed assuming linear accumulation of partial creep lives and relating life to time-dependent stress and temperature using the Larson-Miller parameter. The computer program, CAPSUL, is written in Fortran language for the IBM 360/75 computer. The program makes a least squares fit of the creep life function using conventional constant stress, constant temperature creep data. Dimensions of capsules having maximum thermal power per unit of weight, volume, or area are calculated for a given creep life and pressure-temperature history using a numerical Lagrange Multiplier formulation. The program also calculates the life to a prescribed strain for capsules of given dimensions and pressure-temperature history. The method has been used to analyze creep data for the alloys 304 stainless steel, Hastelloy N, Cb-1% Zr, FS-85, and T-222.
J. P. Nichols↗