EP 2442348 B1 20130731 - Photomultiplier tube
Title (en)
Photomultiplier tube
Title (de)
Photovervielfacherröhre
Title (fr)
Tube photomultiplicateur
Publication
Application
Priority
EP 10187891 A 20101018
Abstract (en)
[origin: EP2442348A1] The photomultiplier tube 1 is provided with an electron multiplying part 33 having a plurality of stages of dynodes 33a to 331 arrayed along a direction at which electrons are multiplied on an inner surface 40a of a casing 5 and a photocathode 41 and an anode part 34 installed so as to be spaced away form the electron multiplying part 33 inside the casing 5. Each of the dynode 33c to 33e is provided with a plurality of columnar parts 51c to 51e where secondary electron emitting surfaces 53c to 53e are formed, thereby forming electron multiplying channels C between adjacent columnar parts. An opposing surface 54e which opposes a columnar part 51d which is a previous stage at a columnar part 51e which is a subsequent stage is formed in such a manner that both end parts 56e, 57e in a direction along the inner surface 40a of the opposing surface 54e project to the first end side from a site 55e which opposes the end part of the second end side on the secondary electron emitting surface 53d of the columnar part 51d.
IPC 8 full level
H01J 43/22 (2006.01)
CPC (source: EP)
H01J 43/22 (2013.01)
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
DOCDB simple family (publication)
DOCDB simple family (application)
EP 10187891 A 20101018