The effects of phosphor decay on time-modulated measurements made with image-tube systems

Details The effects of phosphor decay on time-modulated measurements made with image-tube systems The effects of phosphor decay on time-modulated measurements made with image-tube systems

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pasp...91..399s&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 91, June-July 1979, p. 399-404.

Astronomy and Astrophysics

Astronomy

3

Astronomical Photometry, Image Intensifiers, Image Tubes, Phosphorescence, Spectrophotometry, Contamination, Signal To Noise Ratios, Time Dependence

Scientific paper

The interpretation of time-modulated astronomical measurements performed with image-tube systems is complicated by the effects of time decay of the intensifier's phosphors. Contamination of any one measurement by phosphor output from prior measurements can be severe for a typical intensifier and modulation rates in excess of a few Hz. However, the effects of phosphor decay contamination on the net SNR of a time-modulated measurement are relatively minor due to the manner in which the dominant source of noise (the input photon noise) propagates through the decay period.

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