The Amplitude Effect of Point-Source Blooming as a Function of Background Level in Ebsicon-Type Camera Tubes
MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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A laboratory experiment is described in which the amplitude effect of point-source blooming in an ebsicon-type i.e., intensified silicon-diode array camera tube is demonstrated as a function of uniform background level. At very low background levels, the signal required for constant video signal-to-noise ratio, as measured on an A-scope, is approximately constant at intermediate levels, it varies approximately as the one-half power of the background level and, at high background levels, the power law exceeds unity. An amplitude- degradation function, f, obtained from the measurements, is presented. The importance of the f-function in point-source measurements using an A-scope is discussed.
- Electrooptical and Optoelectronic Devices
- Solid State Physics