dynode


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dynode

[dī′nōd]
one of a series of platelike elements that amplify electron pulses in a photomultiplier tube. Each electron that strikes a dynode causes several secondary electrons to be emitted. The dynode gain is the ratio of the number of secondary electrons to the number of incident electrons.
References in periodicals archive ?
Among the breakthrough claims of the patent is the application of an engineered thin film dynode layer applied to microchannel plates which enhance their performance in many key areas including higher gain, lower dark noise, and longer effective lifetime.
High sensitivity conversion dynode detector with active gating for increased life time and for positive/negative detection.
One of these is Active Dynode Control, which prevents the nonlinear signal response so often associated with conventional resistive dynode dividers.
last dynode output connector (optional - can provide or not provide).
QUEZALES UNTIDILY ACHROMIC FLEABANE FERMENTS (81) HAPHAZARD AQUILEGIA SUCCORING TAEKWONDO (77) SCOFFLAWS HYPEREMIA AMATIVELY HALAZONES (77) HAMADA EXEQUY MIZUNA PLEACH YESSES (76) SNIPPER NONHOME EIDOLIC ESERINE ZONATED EMETINE RESECTS (75) HARIJAN ATOMIZE WASABIS EXIGENT DYNODES (74) PRELATE SEMILOG HEEZING ACTABLE WHIRLER SYNDETS (74) REPAST EXARCH DUNKER EVZONE FIESTA YAREST (73)
6] s between the corresponding signals from the last-but-one dynodes of the lifetime PM tubes, an approach that cuts efficiently random coincidence noise.
The noise is then reduced to unavoidable dark currents due to the amplifying voltage between the cathode and the dynodes.
Night vision systems intensify reflected light that reach their dynodes, and require at least some ambient light to function, It is a simplification but generally correct to say that night vision systems are suitable for navigation and targeting for distances m easured in hundreds of yards, while FLIR enables pilots and gunners to pick out targets many kilometers away.
The electrons are amplfied (caused to increase in number) by a chain of dynodes in process called "stimulated emission," producing a "shower" of electrons that makes an electrical pulse.