Electron multiplier plate with controlled multiplication
AssigneeU.S. Philips Corporation
InventorGilbert Eschard
Life of this patent
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Abstract
Electron multiplier plate with controlled multiplication, multiplier element comprising the said plate, multiplier device comprising the said element and application of the said device to a photomultiplier tube. Secondary emission electron multiplier plate (10) of the "aperture plate" type, comprising multiplier apertures (11), each having an input side (12), an output side (13), and an efficacious multiplier partition (14) having emissive power. Multiplier plate (10) has at least one elementary multiplier pattern (15) comprising a plurality of multiplier apertures, at least the said efficacious multiplier partitions (14a) of the peripheral multiplier apertures (11a) of the pattern (15) being oriented towards the interior of the said pattern.
Claims10
A secondary emission electron multiplier plate of the "apertured plate" type, comprising an elementary multiplier pattern having a plurality of multiplier apertures, said apertures lying in concentric arrays about the interior of said pattern, each aperture having an input side, an output side, and an efficacious multiplier partition having emissive power therebetween, the partitions of the apertures in the peripheral array being oriented so that electrons received at their input sides are directed toward the interior of the pattern through the output side.
Dependencies are inferred from the claim text.