EP 0430812 B1 19950802 - Charged particle convergence device.
Title (en)
Charged particle convergence device.
Title (de)
Konvergenzeinrichtung für geladene Teilchen.
Title (fr)
Dispositif de convergence pour particules chargées.
Publication
Application
Priority
JP 31217489 A 19891130
Abstract (en)
[origin: EP0430812A2] The present invention relates to a charged particle convergence device provided with a plurality of even-numbered substantially prolongated poles (1, 2, 3, 4) arranged along a central axis (z) of a transport path of charged particles. Each pair of the poles (1, 2, 3, 4) are opposed to each other in a symmetrical manner with respect to the central axis (z) of the transport path. With keeping the opposing relation, the plurality of even-numbered prolongated poles spiral around the central axis (z) of the transport path. The same-polarized electric or magnetic potential is applied to each pair of the opposing poles while the reverse-polarized electric or magnetic potential is applied to the adjacent pair of the poles. This device may be applied for transporting charged particles generated, for example, in an ion injection machine. <IMAGE>
IPC 1-7
IPC 8 full level
G21K 1/08 (2006.01); G21K 1/087 (2006.01); H01J 37/141 (2006.01); H01J 49/42 (2006.01); H05H 7/00 (2006.01); H05H 7/08 (2006.01); H05H 9/04 (2006.01); H05H 15/00 (2006.01)
CPC (source: EP)
H05H 7/08 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0430812 A2 19910605; EP 0430812 A3 19911127; EP 0430812 B1 19950802; DE 69021339 D1 19950907; DE 69021339 T2 19960418; JP 2893767 B2 19990524; JP H03172800 A 19910726
DOCDB simple family (application)
EP 90403404 A 19901129; DE 69021339 T 19901129; JP 31217489 A 19891130