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Beam brightness of patchy temperature-limited cathodes

IEEE Transactions on Electron Devices, 1987
The beam brightness B of smooth thermionic cathodes is examined in the temperature-limited regime as affected by work-function patchiness. Beam brightness is expressed in terms of the autocorrelation function of the work function nonuniformity in the laminar approximation. The dependence on extraction field strength and other factors is discussed.
R.F. Greene, C.R.K. Marrian
openaire   +1 more source

Hurricane Imaging Radiometer (HIRAD) brightness temperature validation

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
The Hurricane Imaging Radiometer (HIRAD) is an experimental C-band airborne microwave radiometer developed by NASA Marshall Space Flight Center (MSFC) to provide hurricane's surface wind speed and rain rate. It is intended to expand the current NOAA and US Air Force hurricane surveillance capability by extending the operational Stepped Frequency ...
Sahawneh, Saleem, Jones, Linwood
openaire   +2 more sources

Low temperature confocal spectroscopy in bright nanodiamonds

2022
While colour centres in diamond have numerous exciting room-temperature applications, it remains important to be able to study and control their properties at cryogenic temperatures where crystal phonon activity is suppressed. A cryogenic confocal microscope has been developed using galvanometer beam scanning and a closed-cycle helium cold-finger ...
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SMOS brightness temperature measurements - performance and evolution

2023
Living Planet Symposium, 23-27 May 2022, Bonn ...
Oliva, Roger   +16 more
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True Temperature and Brightness Temperature

Journal of the Optical Society of America, 1961
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Lunar Brightness Temperature and Radiometer Design

55th AIAA Aerospace Sciences Meeting, 2017
Sakshi Namdeo   +4 more
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The Cygnus Radio Loop: Temperature and Brightness

2009
Observations of the continuum radio emission at 1420, 820 and 408 MHz enabled estimations of the brightness of the Cygnus Loop supernova remnant (SNR). We calculated the mean brightness temperatures and surface brightnesses of this loop at the three frequencies.
Borka Jovanović, Vesna, Urosevic, D.
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Temperature dependence of the electroluminescence brightness

Soviet Physics Journal, 1969
V. L. Rabotkin   +2 more
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