Photomultiplier
From Mass Spec Terms
| 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. |
