Photomultiplier: Difference between revisions

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Electrons produced following collision of an ion with a [[conversion dynode]] strike a phosphorous screen to produce a burst of photons.  Cascade amplification of these photons, in a manner similar to electron amplification within an electron multiplier results in an increased signal that is converted into a measurable current.  Photomultiplier are sealed units that prevent contamination and hence increase the lifetime of the unit.
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[[Category:Detection]]
[[Category:Detection]]

Revision as of 01:08, 5 December 2005

DRAFT DEFINITION
Photomultiplier

Electrons produced following collision of an ion with a conversion dynode strike a phosphorous screen to produce a burst of photons. Cascade amplification of these photons, in a manner similar to electron amplification within an electron multiplier results in an increased signal that is converted into a measurable current. Photomultiplier are sealed units that prevent contamination and hence increase the lifetime of the unit.

Considered between 2004 and 2006 but not included in the 2006 PAC submission
This is an unofficial draft definition presented for information and comment.

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