Effects of energetic particles on photomultipliers in earth orbits up to 1500 km
Effects of energetic particles on photomultipliers in earth orbits up to 1500 km
Blamont, J. E.↗
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Results for “PHOTOMULTIPLIERS”
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Photomultiplier area sensitivity measurements using a multicolor display technique.
Color coded area sensitivity maps of photomultiplier tubes by multicolor display technique, noting focus electrode voltage
Youngbluth, O., Jr.↗
Quantitative schlieren measurements by the photomultiplier technique.
Quantitative density data from schlieren measurements by photomultiplier technique for axisymmetric flow outside diffraction bands
Dale, R. G., Jr.↗
Theoretical study of the mechanisms of fatigue in photomultipliers, phase 2 Final report
Fatigue testing of photomultipliers with gallium phosphide dynodes
Martinelli, R. U.↗
Precision timing with photomultipliers at the single photoelectron level Interim report
Precision timing with photomultipliers at single photoelectron level
Poultney, S. K.↗
Effect of photocathode light transmission on photomultiplier time response
Photocathode internal light scattering effect on photomultiplier time response
Grant, G. R.↗
Photometric error analysis. IX - Optimum use of photomultipliers
Photometric error analysis and optimum use of photomultipliers, discussing pulse-height spectra, detection and weighting systems
Young, A. T.↗
Fatigue effects on the area sensitivity, dynode gain and anode output for several end-on photomultipliers
Fatigue effects of incident illumination on area sensitivity, dynode gain stability and anode output for end-on photomultipliers
Youngbluth, O., Jr.↗
Single electron pulse height distribution of photomultipliers
Photomultipliers single electron response by measuring electron pulse height distribution
Sandor, T.↗
Quantum efficiencies greater than 50 percent from commercially available photomultipliers
Photomultiplier tubes high quantum efficiency attainment by optical enhancement techniques
Grant, G. R.↗
Canopus detector including automotive gain control of photomultiplier tube Patent
Photomultiplier detector of Canopus for spacecraft attitude control
Errett, D. D.↗
Direct measurement of the quantum counting efficiency of RCA C31000E/F photomultipliers at 6328 A
Quantum counting efficiency of commercial photomultiplier at 0328 A by direct measurements, including signal and background dependence
Lakes, R. S.↗
Use of photomultiplier tubes for photon counting
Critique on photomultiplier tube for photon counting, considering pulse height distribution, SNR and electron collection efficiency errors
Young, A. T.↗
Change in photomultiplier area sensitivity map with wavelength of illumination
Illumination wavelength effect and supply voltage dependence of photomultiplier area sensitivity map
Youngbluth, O., Jr.↗
Optical enhancement of photomultipliers at ultraviolet wavelengths
Optical enhancement of photomultipliers extended to UV wavelengths, using suprasil and spectrosil fused silica with high flat transmission curves as optical materials
Grant, G. R.↗
Photomultiplier blanking circuit
Circuit for protecting photomultiplier equipment from current surges which occur when exposed to brilliant illumination is discussed. Components of circuit and details of operation are provided. Circuit diagram to show action of blanking pulse on zener diode is included.
Mcclenahan, J. O.↗
Color-coded area sensitivity maps of photomultipliers
Technique was devised specifically for testing photomultipliers and other photodetectors, but it could also be used to color code any type of mapping data, such as weather or topographical maps, thermal or pressure distributions on reentry surfaces, or any other three-dimensional data to be displayed in two-dimensional form.
Youngbluth, O., Jr.↗
Photomultiplier circuit including means for rapidly reducing the sensitivity thereof
A simple, reliable and inexpensive control circuit is described for rapidly reducing the bias voltage across one or more of the dynode stages of a photomultiplier, to substantially decrease its sensitivity to incoming light at those times where excess light intensity might damage the tube. The control circuit comprises a switching device, such as a silicon controlled rectifier (SCR), coupled between a pair of the electrodes in the tube, preferably the cathode and first dynode, or the first and second dynodes, the switching device operating in response to a trigger pulse applied to its gate to short circuit the two electrodes. To insure the desired reduction in sensitivity, two switching stages, the devices be employed between two of the electrode stages, the devices being operated simultaneously to short circuit both stages.
Mcclenahan, J. O.↗