Signal processing

Constant fraction discriminator

A constant fraction discriminator (CFD) is an electronic signal processing device, designed to mimic the mathematical operation of finding a maximum of a pulse by finding the zero of its slope. Some signals do not have a sharp maximum, but short rise times . Typical input signals for CFDs are pulses from plastic scintillation counters, such as those used for lifetime measurement in positron annihilation experiments. The scintillator pulses have identical rise times that are much longer than the desired temporal resolution. This forbids simple threshold triggering, which causes a dependence of the trigger time on the signal's peak height, an effect called time walk (see diagram). Identical rise times and peak shapes permit triggering not on a fixed threshold but on a constant fraction of the total peak height, yielding trigger times independent from peak heights. (Wikipedia).

Constant fraction discriminator
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From playlist Discriminant of a Quadratic Equation

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๐Ÿ‘‰ Learn all about the discriminant of quadratic equations. A quadratic equation is an equation whose highest power on its variable(s) is 2. The discriminant of a quadratic equation is a formula which is used to determine the type of roots (solutions) the quadratic equation have. The disc

From playlist Discriminant of a Quadratic Equation | Learn About

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From playlist Discriminant of a Quadratic Equation | Learn About

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๐Ÿ‘‰ Learn how to determine the discriminant of quadratic equations. A quadratic equation is an equation whose highest power on its variable(s) is 2. The discriminant of a quadratic equation is a formula which is used to determine the type of roots (solutions) the quadratic equation have. T

From playlist Discriminant of a Quadratic Equation

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From playlist Discriminant of a Quadratic Equation | Learn About

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From playlist Discriminant of a Quadratic Equation

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From playlist Discriminant of a Quadratic Equation

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From playlist Discriminant of a Quadratic Equation

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From playlist Mathematics

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From playlist HIM Lectures: Trimester Program "Non-commutative Geometry and its Applications"

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From playlist Discriminant of a Quadratic Equation | Learn About

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