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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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Developmental densitometer system for cryogenic liquids uses two balanced ionization chambers containing xenon gas, with X rays as the radiation source. The X rays are heavily filtered with a lead shield to make the energy spectrum much less dependent on the voltage applied to the X ray tube.
Two rotating wheels in orthogonal relationship with helicoidal reflecting surfaces mounted on their outer rims achieve a linear speed without normal time loss in their return motion. The pitch of the helicoidal surfaces equals the displacement that the mirrors must traverse.
Construction technique for welded cordwood electronic module fabrication
Mass spectrometric study of products obtained from rapid cryogenic quenching of reactions involving hydrogen and oxygen atoms
Drag sphere anemometers for ground wind velocity measurements and spacial correlation of gusts
Thin film thermal radiation detector noting construction, calibration, performance, error sources and advantages of pyroelectric over thin film gauges
Current transducer for measuring current pulses in kiloampere range and suitable for laser research applications
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Proportional control circuit supplies a heater with full current, from a pulsating dc source, to a present temperature and then switches to proportional control for fine temperature regulation. Two resistors and a diode are added to the existing circuit. The circuit can be adapted to control other functions.
Switched amplifier, mode control circuit for ASTRAC II iterative differential analyzer
Time-channel response function for time of flight spectrometer to measure monoenergetic secondary neutrons in 2 to 100 MeV energy region
Comparison and descriptions of slitless spectrographs for low-light-level research
Thin film thermal radiation detector noting construction, calibration, performance, error sources and advantages of pyroelectric over thin film gauges
Exact expression for line profile of stigmatic spectrograph without vignetting, noting results with foil-excited ions as light source
Reentry trajectory optimization by repetitive computations of impulse response functions and state equations solution