A 2.5-K GM/J-T cooler for maser low-noise amplifiers
This paper describes a 2.5 K cooler intended for microwave Maser low noise amplifier cooling applications.
Maser J-T J-T/GM 2.5 K cooler↗
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Results for “MASER”
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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Superconductor magnets used for stagger-tuning traveling-wave maser
Superconducting materials reduce size and weight of magnets used for stagger-tuning individual traveling-wave maser crystals. The invention is useful in microwave communication systems requiring a high information rate.
Source record↗
Brillouin scattering in liquids excited by the he-ne maser.
Brillouin scattering in liquids excited by He-Ne maser and observed by Fabry-Perot interferometer, noting acoustic wave velocity and line broadening
ACOUSTIC VELOCITY↗
Theory of magnetic effects in optical maser amplifiers and oscillators.
Model for behavior of optical maser in static magnetic field of arbitrary strength in Z direction and in electromagnetic field composed of traveling waves
ELECTROMAGNETIC FIELD↗
Quantum theory of an optical maser.
Density operator of optical maser quantized by radiation, with application to laser oscillators
RADIATION FIELD↗
Hydrogen maser as a highly stable frequency reference
Hydrogen maser is stable short-term and long-term frequency reference for precision tracking systems. Its resettability is expressed as the rms deviation from the mean.
Vanier, J.↗
The travelling wave maser amplifier in the Goonhilly radio station
The design and performance of the 4170 Mc/s travelling wave maser at present installed at the GPO Radio Station, Goonhilly Downs, is described. Means of increasing the bandwidth of the device are discussed.
COMMUNICATION SYSTEM↗
Improved traveling wave maser amplifier
Traveling Wave Maser /TWM/ that operates at S-band frequencies is characterized by a greatly improved gain-bandwidth product with relatively low equivalent-noise temperature. Tests indicate that its performance exceeds that of any other type of S-band amplifier.
Clauss, R. C.↗
Atomic hydrogen maser for space vehicle application, phase 1 Final report, 1 Mar. 1966 - 31 Mar. 1968
Design and development of atomic hydrogen maser for space vehicle application
Levine, M. W.↗
Lasers and masers A continuing bibliography with indexes, Apr. - Dec. 1967
Bibliographic citations, abstracts, and indexes on laser and maser research and development
Source record↗
Quantum theory of an optical maser. II - Spectral profile.
Quantum theory of optical maser, calculating laser radiation spectrum from two time correlation function derived from equations of motion
Lamb, W. E., Jr.↗
X-band traveling wave maser.
Traveling wave maser providing 41.5 db net gain when installed in closed cycle helium refrigerator, measuring input noise temperature
Clauss, R. C.↗
Relaxation in rubidium-87 and the rubidium maser.
Rubidium 87 maser power output dependence on cavity Q, density and light intensity, discussing spin relaxation
Vanier, J.↗
36 GHz travelling wave maser.
Traveling wave maser with 6 db amplification at 36 GHz, using Cr ion doped rutile as active material and superconducting magnet for DC magnetic field
Hagen, J. P.↗
A new wideband traveling-wave maser system.
Wideband traveling wave maser SHF preamplifier system with high gain and low noise temperature operating in closed cycle liquid He refrigerator
Johnson, C. C.↗
Progress in the development of hydrogen masers.
Self contained atomic hydrogen maser frequency standard design and development, discussing AC power requirement, control circuitry, operating parameters and stability
Baker, M. R.↗
Energy requirements and mechanisms for OH galactic masers.
Anomalously intense Galactic hydroxyl microwave emission characteristics explained as maser action, discussing pumping energy requirements and mechanism
Holtz, J. Z.↗
Power density spectrum of the hydrogen maser.
Power density and frequency spectrum of hydrogen masers
Sward, A.↗