EP 2198432 B1 20110309 - CHOPPER FOR A PARTICLE BEAM
Title (en)
CHOPPER FOR A PARTICLE BEAM
Title (de)
CHOPPER FÜR EINEN TEILCHENSTRAHL
Title (fr)
HACHEUR POUR UN FAISCEAU DE PARTICULES
Publication
Application
Priority
- DE 2008001539 W 20080912
- DE 102007046739 A 20070928
Abstract (en)
[origin: WO2009039832A1] The invention relates to a chopper for a particle beam, comprising an annular guiding element (11) and a control element (13) for the intensity of the particle beam. According to the invention, the control element is mounted up against the guiding element in such a way that at least one contact point on the control element can run around the circumference of the guiding element. Mounting along a circumference makes it possible with the same bearing force to compensate for much greater disturbing torques than mounting at the axis of rotation. It also makes it possible to dispense entirely with the axis of rotation, and so the control element can for example be formed as a ring. In comparison with prior-art chopper wheels, this brings about a considerable weight saving, which results in greater circumferential speeds being possible, and consequently greater modulation frequencies for the particle beam being possible, with at the same time increased operational reliability.
IPC 8 full level
G21K 1/04 (2006.01)
CPC (source: EP US)
G21K 1/04 (2013.01 - EP US); G21K 1/043 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009039832 A1 20090402; AT E501513 T1 20110315; CN 101809676 A 20100818; CN 101809676 B 20130814; DE 102007046739 A1 20090723; DE 502008002832 D1 20110421; EP 2198432 A1 20100623; EP 2198432 B1 20110309; JP 2010540912 A 20101224; JP 5431332 B2 20140305; US 2010294959 A1 20101125; US 8324590 B2 20121204
DOCDB simple family (application)
DE 2008001539 W 20080912; AT 08801331 T 20080912; CN 200880109650 A 20080912; DE 102007046739 A 20070928; DE 502008002832 T 20080912; EP 08801331 A 20080912; JP 2010526159 A 20080912; US 73349608 A 20080912