Physics progress report, 1 October 1965 - 1 October 1966
Particle interaction measurements and calculations, astronomical measurements, and radioactive isotope detection
Source record↗
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Results for “RADIOACTIVITY”
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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Projected large scale use of radioisotopes by NASA
Use, hazards, and comparison of radioactive isotopes for space power systems
English, R. E.↗
A thermometric film simulator and an application to the film mount of the Arcasonde 1A sensor Progress report
FORTRAN computer program for calculating time dependent temperature distribution over planar thin plates with arbitrary distribution of conductive, convective, and radioactive data
Kikkawa, S.↗
Feasibility tests of a radioisotope type ablation measuring system
Reentry shielding ablation measured by imbedded radioactive isotopes with radiation dector
Le Bel, P. J.↗
Radiography. Volume 1 - Origin and nature of radiation
Origin and nature of X rays and gamma rays and their properties, radioactive materials, and absorption and scattering - programmed textbook on nondestructive testing using radiography
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Hermetic seal evaluation for electronic components Final report
Leakage rate limits of hermetically sealed spacecraft electronic components, and correlation of radioactive gas and helium mass spectrometer detection methods
Guyton, R. D.↗
Induced radionuclides in astronauts Second quarterly activity report, 1 Oct. 1967 - 1 Jan. 1968
Tissue irradiated with protons and thermal/fast neutrons to study induced radioactive isotope production in astronauts
Perkins, R. W.↗
NAC - Neutron activation code
Computer coding program for neutron activation analysis of gamma ray radioactivity for composite materials
Weinstein, S. T.↗
Properties of selected radioisotopes. A bibliography, part 1 - Unclassified literature
Nuclear, chemical, and physical properties of nine radioactive isotopes - annotated bibliography
Epstein, J.↗
Physics Progress report, 1 Oct. 1966 - 1 Oct. 1967
Research project summaries on cosmic rays, accelerator physics, linear accelerators, nuclear spectroscopy and structure, cyclotrons, radioactivity, and nuclear physics theory
Source record↗
Early thermal history of the terrestrial planets.
Temperature profiles of primitive terrestrial planets, discussing gravitational energy, radioactive isotope, internal heat redistribution and radiative transfer effects
Anderson, D. L.↗
Super 40 Ar- super 40 K ages of silicate inclusions in iron meteorites.
Argon and potassium in silicate inclusions of iron meteorites analyzed, determining radioactive age
Bogard, D.↗
DNA degradation by decay from incorporated tritium compounds in Escherichia coli.
DNA degradation by radioactive decay from incorporated tritium and carbon labeled E. coli cells
Person, S.↗
An improved flow counter for detecting beta-emitting radioisotopes.
Flow type detector for beta emitting radioisotopes produces linear response and rapid radioactivity washout
Martin, J. K.↗
Nondispersive X-ray emission analysis for geochemical exploration
Nondispersive X-ray emission technique uses lightweight, and rugged X-ray fluorescence units. The X-ray pulse-height spectra is excited by radioactive isotope sources. The technique is applicable for quantitative and qualitative analyses on complex chemical systems, and satisfies the goals for a lunar geochemical exploration device.
Adler, I.↗
Monte Carlo direct view factor and generalized radiative heat transfer programs
Computer programs find the direct view factor from one surface segment to another using the Monte carlo technique, and the radioactive-transfer coefficients between surface segments. An advantage of the programs is the great generality of problems treatable and rapidity of solution from problem conception to receipt of results.
Mc Williams, J. L.↗
Remote balance weighs accurately amid high radiation
Commercial beam-type balance, modified and outfitted with electronic controls and digital readout, can be remotely controlled for use in high radiation environments. This allows accurate weighing of breeder-reactor fuel pieces when they are radioactively hot.
Eggenberger, D. N.↗
New shield for gamma-ray spectrometry
Gamma-ray shield that can be evacuated, refilled with a clean gas, and pressurized for exclusion of airborne radioactive contaminants effectively lowers background noise. Under working conditions, repeated evacuation and filling procedures have not adversely affected the sensitivity and resolution of the crystal detector.
Brar, S. S.↗