| PM | after death (Lat. post mortem); after noon [Lat. post meridiem]; mean pressure; pacemaker; pantomogr... |
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| PMT | parent management training; phenol O-methyltransferase; photomultiplier tube; Porteus maze test; pre... |
| photomultiplier tube | A detector which amplifies a signal (by as much as 106) of electromagnetic radiation by an acceleration of electrons released from a photocathode through a series of dynodes; as each electron strikes a dynode stage, 3 to 4 electrons are liberated and accelerated to the subsequent dynode. (05 Mar 2000) |
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| photomultiplier tube |
a vacuum tube that converts electromagnetic radiation signals into electrical pulses, consisting of a light-sensitive surface that emits electrons when light is incident on it, the electrons then passing through successive stages with electron multiplication at each stage.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| photomultiplier tube |
An electron tube that produces electrical signals in response to light. In the tube, the signal is amplified to produce a measureable output current from very small quantities of light.
Ãâó: history.nasa.gov/EP-95/glossary.htm
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| photomultiplier t. |
a vacuum tube that converts electromagnetic radiation signals into electrical pulses, consisting of a light-sensitive surface that emits electrons when light is incident on it, the electrons then passing through successive stages with electron multiplication at each stage.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| photomultiplier tube |
An instrument in which electrons released by photoelectric emission are multiplied in successive stages by dynodes which produce secondary emission in order to amplify an image to see smaller details.
Ãâó: www.astro.virginia.edu/~rjp0i/museum/glossary.html
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