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The Potentialities of PhotoElectronic Imaging Devices for Astronomical Observa
Image Tube Research at Yerkes Observatory By W A Hiltner and Peter Pesch
An Image Intensifier with a Thin EndWindow By B Zacharov and S Dowden
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aluminum amplifier anode background barrier-membrane brightness C.P.S. Emitron camera cascaded cathode potential cesium iodide channel charge contrast curve dark current density detector device diameter dielectric layer dynode electron beam électronique emitted emulsion energy exposure factor fibers field emission film fluctuations fluorescent screen flux focused glass grid image converter image orthicon image tube incident increase insulation integration intensity Laboratories lens light levels limited luminescent chamber luminophor magnetic maximum measured mesh method mosaic multiplier noise obtained operation optical system output oxide phosphor phosphor screen photocathode photoconductive photoelectrons photographic photons pick-up tube picture element plaques possible produced pulse quantum efficiency radiation reduced regenerative image intensifier resolution scanning scintillation secondary electrons secondary emission selenium sensitivity shot noise shown in Fig signal current signal plate signal-plate signal-to-noise ratio spectral stage storage tube surface target television temperature thickness thin vidicon voltage volts X-ray image X-ray image intensifier