The propagation of very heavy primary cosmic ray particles
Very heavy primary cosmic ray particles propagation calculation, using fragmentation parameters
Friedlander, M. 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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Primary electric propulsion in the evolving automated space transportation propulsion program
Primary solar electric propulsion for automated space transportation propulsion program, considering performance and technology readiness
Edgecombe, D. S.↗
Summary of primary results of the lifting body program
This summary paper will point out results of the lifting body program that have a bearing on the design of a large space shuttle vehicle. The initial program objectives, the primary program results, and the pertinence of these results to the shuttle will be outlined, as will the future direction of the program.
Garrison P Layton, Jr.↗
High energy density primary batteries Interim report, 20 Jun. 1969 - 30 Jun. 1970
Electrical properties of copper fluoride/lithium hexafluoroarsenate in methyl formate/lithium high energy primary batteries
Beck, W. R.↗
Transfer function determination of the primary loop of a conceptual nuclear Brayton space powerplant
Transfer functions for primary loop of conceptual nuclear Brayton space power plant
Kieffer, A. W.↗
Influence of degassing from lava on the primary colonization by organisms - A hypothesis
Investigating effects of lava outgassing on primary colonization by organisms
Linskens, H. F.↗
Operating characteristics of the primary flow loop of a conceptual nuclear Brayton space powerplant
Steady state and transient operating characteristics of lithium cooled primary flow loop of nuclear Brayton space power plant
Kieffer, A. W.↗
A supersonic inlet-engine control using engine speed as a primary variable for controlling normal shock position
Supersonic inlet engine control using engine speed as primary variable for controlling normal shock position
Hagedorn, R. E.↗
Low input voltage conversion from unconventional primary /RTG'S/ and secondary /battery/ sources
Voltage converter/regulator for primary and secondary power sources in deep space missions
Pasciutti, E. R.↗
Application of beryllium to orbiter primary structure
Reduction of overall program costs for reusable space shuttle by use of beryllium as primary structural material
Harvey, T. J.↗
Determination of Primary-zone Smoke Concentrations from Spectral Radiance Measurements in Gas Turbine Combustors
Measurement of smoke concentration in primary zone of gas turbine combustor at high ambient pressures by spectral radiance technique
Norgren, Carl T.↗
High pressure performance of combustor segments utilizing pressure-atomizing fuel nozzles and air swirlers for primary-zone mixing
Primary and secondary mixing performance of combustors under high inlet air pressures
Ingebo, R. D.↗
Study to establish criteria for a solar cell array for use as a primary power source for a lunar-based water electrolysis system, phase 4
Establishing solar cell array criteria for use as primary power source in lunar-based water electrolysis system
Boretz, J. E.↗
Electron impact promoted fragmentation of alkyl-N-(1-Phenylethyl)-carbamates of primary, secondary and tertiary alcohols
Mass spectra of alkyl carbamates derived from primary, secondary, and teriary alcohols by use of deuterium labeling and high resolution mass spectroscopy
Pereira, W. E.↗
High energy primary cosmic ray program of Goddard Space Flight Center
High energy primary cosmic ray program of Goddard Space Flight Center involving charge composition and energy spectra studies in balloon and satellite experiments
Balasubrahmanyan, V. K.↗
An experiment to study the nuclear component of primary cosmic rays
An apparatus has been designed and is being fabricated to study the charge composition, fluxes, and energy spectra of light nuclei in the energy region from 1 GeV to 100 GeV. The apparatus essentially consists of an array of a large number of particle detectors operated in coincidence and serving as a charged particle telescope. A mosaic silicon semiconductor detector, a plastic scintillation counter and a lucite Cerenkov detector are used to measure the charges of the incident nuclei. Two one-inch thick CsI detectors are used to study low energy particles. An ionization spectrometer is utilized to measure primary energies in the 1 to 100 GeV energy interval. A gas Cerenkov counter is being designed to distinguish between electrons and protons. It is planned to calibrate the apparatus at an accelerator using particles of known energy.
Paul, J. M.↗
Primary and secondary particle contributions to the depth dose distribution in a phantom shielded from solar flare and Van Allen protons
Calculations have been made using the nucleon-meson transport code NMTC to estimate the absorbed dose and dose equivalent distributions in astronauts inside space vehicles bombarded by solar flare and Van Allen protons. A spherical shell shield of specific radius and thickness with a 30-cm-diam. tissue ball at the geometric center was used to simulate the spacecraft-astronaut configuration. The absorbed dose and the dose equivalent from primary protons, secondary protons, heavy nuclei, charged pions, muons, photons, and positrons and electrons are given as a function of depth in the tissue phantom. Results are given for solar flare protons with a characteristic rigidity of 100 MV and for Van Allen protons in a 240-nautical-mile circular orbit at 30 degree inclination angle incident on both 20-g/sq cm-thick aluminum and polyethylene spherical shell shields.
Santoro, R. T.↗
Attitude-referenced radiometer study. Part 2: Primary calibration system
A primary calibration system, PCS, for infrared radiometers has been developed, built, and tested. The system allows radiometers to be calibrated with less than 1 percent error for use in earth coverage horizon measurements, earth resources surveys, and synoptic meteorological measurement. The final design, fabrication and test of the PCS are reported. A detailed description of the PCS construction is presented, along with the results of a complete series of functional tests. Test to verify the source thermal characteristics, collimator reflectance, and output beam characteristics are described and their results presented.
Williamson, W. R.↗