Dynamic background subtraction circuit

Details Dynamic background subtraction circuit Dynamic background subtraction circuit

1977-01-03

1978-03-07

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

250252, G01T 100

Patent

active

040781780

ABSTRACT:
A dynamic background subtraction circuit is disclosed which improves the display resolution of radiation energy spectra, such as X-ray energy spectra in an X-ray energy spectrometer. In this circuit, the number of radiation events (counts) occurring at a reference or background energy level is subtracted from the number of radiation events (counts) occurring at a second energy level under study. The output of this circuit is a real-time (dynamic) approximation of the count rate at the energy level under study, but with resolution improved by subtraction of the background counts.

REFERENCES:
patent: 3581087 (1971-05-01), Brinkerhoff et al.
patent: 3612876 (1971-10-01), Grant

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