H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 49/10 (2006.01) H01J 49/26 (2006.01)
Patent
CA 2668550
An ion source includes structure having separate first and second ion volumes therein, and electron source structure having first and second portions that selectively supply electrons to the first and second ion volumes, respectively. The electron source structure has a first operational mode in which the second portion substantially prevents a supply of electrons to the second ion volume and in which electrons are supplied to the first ion volume under control of the first portion, and has a second operational mode in which the first portion substantially prevents a supply of electrons to the first ion volume and in which electrons are supplied to the second ion volume under control of the second portion.
Source ionique comprenant une structure possédant des premier et second volumes ioniques séparés et une structure de source d'électrons possédant des première et seconde parties qui acheminent sélectivement des électrons à chacun des premier et second volumes ioniques. La structure de source d'électrons a, d'une part, un premier mode de fonctionnement, au cours duquel la seconde partie empêche sensiblement l'alimentation en électrons du second volume ionique et des électrons sont fournis au premier volume ionique sous la commande de la première partie et, d'autre part, un second mode de fonctionnement au cours duquel la première partie empêche sensiblement l'alimentation en électrons du premier volume ionique et des électrons sont fournis au second volume ionique sous la commande de la seconde partie.
Mccauley Edward B.
Quarmby Scott T.
Freedman Gordon
Thermo Finnigan Llc
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