EP 2909840 A1 20150826 - BAND-SHAPED CHOPPER FOR A PARTICLE BEAM
Title (en)
BAND-SHAPED CHOPPER FOR A PARTICLE BEAM
Title (de)
BANDFÖRMIGER CHOPPER FÜR EINEN TEILCHENSTRAHL
Title (fr)
HACHEUR EN FORME DE BANDE POUR FAISCEAU DE PARTICULES
Publication
Application
Priority
- DE 102012020636 A 20121020
- DE 2013000533 W 20130919
Abstract (en)
[origin: WO2014075649A1] The invention relates to a band-shaped chopper for a particle beam (2). Said chopper comprises at least one control element (2), which is divided into at least two regions A and B, wherein region B has a lower transparency for the particle beam than region A, and at least one drive source ((3), (4)) for conveying the control element through the particle beam in such a manner that the particle beam is incident on the regions A and B alternately in time. According to the invention the control element is designed in the shape of a band and lies in frictional engagement against the outer circumference of at least one element that can be caused to rotate by the drive source. According to the invention designing the control element as a band-shaped element enables a considerably more compact configuration of the chopper than wheel-shaped or annular choppers according to the prior art to date. In particular, the drive source, which is bulky compared with the control element, can be arranged spatially separate from the beam path, owing to the fact that the band itself transmits the force of the drive source.
IPC 8 full level
G21K 1/04 (2006.01)
CPC (source: EP US)
G21K 1/043 (2013.01 - EP US)
Citation (search report)
See references of WO 2014075649A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102012020636 A1 20140424; DE 112013005055 A5 20150702; EP 2909840 A1 20150826; EP 2909840 B1 20210331; JP 2015533414 A 20151124; JP 6261597 B2 20180117; US 2015279494 A1 20151001; US 9330802 B2 20160503; WO 2014075649 A1 20140522
DOCDB simple family (application)
DE 102012020636 A 20121020; DE 112013005055 T 20130919; DE 2013000533 W 20130919; EP 13801464 A 20130919; JP 2015537141 A 20130919; US 201314434612 A 20130919