A simple method for determination of fission gases trapped in irradiated fuel forms
Fission gases trapped in fuel particles, cladding and matrix of irradiated refractory metal-uranium oxide cermets determined by gamma counting
Sheibley, D. W.↗
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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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Some fuel loss rate and weight estimates of an open-cycle gas-core nuclear rocket engine
Engine weight estimation for showing effect on thrust, specific impulse and uranium loss rate for open cycle gas fueled nuclear rocket engine
Ragsdale, R. G.↗
Ejection and electronic excitation of foil particles by heavy-ion impact
Uranium ion impact ejection and electronic excitation of thin foil particles, observing optical spectra of Be, carbon and Al atoms and ions
Radziemski, L. J., Jr.↗
Least-squares analysis of experimental alpha spectra
Least squares analyses of uranium and thorium alpha spectra
Trivedi, B. M. P.↗
Synthesis, characterization, and fabrication of UN
Synthesis, characterization, and fabrication of uranium nitride powders
Godfrey, T. G.↗
Lunar sample analysis program. High sensitivity isotopic analysis - Apollo 11 and 12. Isotopic abundances of actinide elements in Apollo 12 samples Final technical report
Abundance of uranium, thorium, and plutonium isotopes in Apollo 12 soil and breccia samples
Diamond, H.↗
A preliminary shield design for a SNAP-8 power system
SNAP 8 reactor layered lithium hydride and depleted uranium shield design for space applications
Clark, M. R.↗
Preliminary evaluation of T-111 clad UN fuel specimens from 2500 hour 1040 C /1900 F/ lithium loop test
Metallographic and ductility effects of lithium on tungsten-lined titanium alloy clad uranium mononitride cylinders after long term exposure
Watson, G. K.↗
B.3 mass spectroscopy determination for U, Th, and Pb concentrations and Pb, U, and Th isotope abundances Final report
Mass spectroscopy of lunar samples to determine uranium, thorium, and lead content
Tatsumoto, M.↗
Relationship between engine parameters and the fuel mass contained in an open cycle gas core reactor
Cavity diameter, reactor pressure, engine thrust, and hydrogen to uranium flow rate ratio of open cycle, gas core, reactor rocket engine
Ragsdale, R. G.↗
Generation of a fissioning plasma
Measurements of radiation emission properties of uranium plasma
Kylstra, C. D.↗
A study of thermal radiation absorption processes in gas core reactors
Analysis of thermal emission spectrum from uranium plasma in propellant region of gas core reactor
Celment, J. D.↗
Radiation hazard from backflow of fission fragments from the plume of a gas core nuclear rocket
Calculation of crew radiation dosage from uranium gas nuclear rocket engine exhaust backflow of fission products
Masser, C. E.↗
UO2 venting and redistribution
Out-of-pile experiment for measuring uranium dioxide fuel redistribution rates, determining vent hole plugging time and thermal cycling
Phillips, W. M.↗
Summary of the performance characteristics of the nuclear light bulb engine
Nuclear light bulb engine based on thermal radiation energy transfer from gaseous uranium fuel through internally cooled transparent wall to seeded hydrogen
Latham, T. S.↗
Materials technology program for a compact fast reactor for space power
Materials technology of Ta-W-Hf clad uranium mononitride fuel for lithium cooled compact fast space power reactor, including irradiation tests
Gluyas, R. E.↗
The measurement of radiation exposure of astronauts by radiochemical techniques
Gamma analyses of the neutron-activated fecal samples from the Apollo 12 and 13 missions were completed, and the data are being evaluated. Samples of the exposed Apollo 12 solar wind composition foil and blank foils were obtained for analysis of the Po-2/0 (Pb-210, Rn-222) content. It is expected that the determination of the Po-210 content of these foils will yield the concentration of radon atoms incident on the foil while exposed to the lunar atmosphere, and this indirectly will permit an estimate of the average uranium concentration of the lunar surface. Proposals to measure the cosmic-ray intensity and energy spectra inside and outside of late Apollo and Project Skylab spacecraft by exposing and subsequently analyzing pure metal foils, and to measure the elemental mass balance in Project Skylab astronauts by instrumental neutron activation analysis of the intake and excreta are summarized.
Brodzinski, R. L.↗
The POPOP4 library and codes for preparing secondary gamma-ray production cross sections
The POPOP4 code for converting secondary gamma ray yield data to multigroup secondary gamma ray production cross sections and the POPOP4 library of secondary gamma ray yield data are described. Recent results of the testing of uranium and iron data sets from the POPOP4 library are given. The data sets were tested by comparing calculated secondary gamma ray pulse height spectra measured at the ORNL TSR-II reactor.
Ford, W. E., III↗