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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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At least 541 records · Page 30

All sources NASA NTRS DOE OSTI

NASA NTRS1968

An adaptive threshold gate using a tunnel diode memory.

Five input adaptive threshold logic gate using tunnel diode analog memory

Bargainer, J. D., Jr.↗

NASA NTRS1968

Thin-film CdS diodes heat treated in various ambients.

Thin film Au-CdS-Cr diodes interfacial barrier height after heat treatment in sulfurized silicone oil and various gaseous ambients, noting photoresponse

Learn, A. J.↗

NASA NTRS1968

Build tunnel-diode pulse generators.

Pulse generators using tunnel diodes as output switching elements driven by on-off current sources

Garrahan, N. M.↗

NASA NTRS1968

Versatile low-power-drain hybrid tunnel diode pulse generator.

Low power drain hybrid tunnel diode pulse generator for delay circuits, gated oscillators, frequency limiters and leading and trailing edge discriminators

Cancro, C. A.↗

NASA NTRS1968

Thin film CdS-CdTe heterojunction diodes.

CdTe layer formation at CdS-Te interface during fabrication of thin film, Au-CdS-Te heterojunction diodes by vapor deposition

Dutton, R. W.↗

NASA NTRS1968

Electrical properties of xenon-filled thermionic diodes in the radiation field of a nuclear reactor.

Electrical properties of Xe-filled thermionic diodes in nuclear reactor core radiation, obtaining I-V curves in radiation induced plasma between electrodes

Forman, R.↗

NASA NTRS1968

Generation of high microwave power using arrays of varactor diodes.

Microwave power generation using arrays of varactor diodes, noting distributed heat sources and technique for preventing spurious parametric oscillations

Grayzel, A. I.↗

NASA NTRS1967

Dosimetry of proton beams using small silicon diodes.

Use of small silicon diodes as radiation dosimeters in proton beams

SILICON JUNCTIONS↗

NASA NTRS1969

Ge-diode detector combined with crystal-diffraction spectrometer permits high-resolution gamma ray spectroscopy

Crystal-diffraction spectrometer, combined with a lithium-drifted Ge-diode detector, performs high-resolution gamma ray spectroscopy on the complicated neutron-capture gamma ray spectra. The system is most useful in the 1-3 MeV energy range and improves the signal to background ratio.

Namenson, A. I.↗

NASA NTRS1969

Device for diode tuning in a stripline varactor harmonic multiplier

Stripline varactor harmonic multiplier uses a device for positioning the varactor diode with respect to the stripline circuit to obtain series resonance. The device also reduces detuning effects, due to thermal expansion, over a wide temperature range.

Steele, K. P.↗

NASA NTRS1969

Improved method of fabricating planar gallium arsenide diodes

Improved method fabricates electroluminescent planar P-N gallium arsenide diodes. GaAs is masked with silicon monoxide to allow P-type impurities to be diffused into unmasked portions of GaAs to form P-N junctions.

Roy, M. M.↗

NASA NTRS1969

Miniature backward-diode pressure sensor features stability and low power consumption

Backward-diode pressure transducer retains the advantages of a tunneling mechanism, requires no shunting resistor, operates at a low voltage level, and consumes little power.

Garfein, A.↗

NASA NTRS1968