Photomultiplier: Difference between revisions
From Mass Spec Terms
No edit summary |
No edit summary |
||
| Line 2: | Line 2: | ||
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. | 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. | ||
}} | }} | ||
== Related Terms == | |||
*[[Dynode]] | |||
== External Links == | |||
*[[Wikipedia:Photomultiplier]] | |||
[[Category:Detection]] | [[Category:Detection]] | ||
Revision as of 00:46, 20 January 2006
| 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. |
