Patent ID: 7285783
Filing Date: 2007-10-23
Classification: H01J

Abstract:
1. A multi-anode type photomultiplier tube comprising: a faceplate made from glass and having a first surface and a second surface opposite to each other; a hollow side tube made from glass, the side tube extending along a tube axis that is substantially perpendicular to the faceplate, the side tube including: a photocathode that is provided on the first surface of the faceplate at its area inside the tube head and that emits photoelectrons in response to incidence of light on the faceplate from the second surface; a plurality of electron multiplying portions provided inside the tube main body in one-to-one correspondence with a plurality of regions on the photocathode; and a plurality of anode electrodes provided inside the tube main body in one-to-one correspondence with the plurality of electron multiplying portions.