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Photomultiplier apparatus having a multi-layer unitary ceramic housing

  • US 5,581,151 A
  • Filed: 11/06/1995
  • Issued: 12/03/1996
  • Est. Priority Date: 07/30/1993
  • Status: Expired due to Term
First Claim
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1. A photomultiplier tube comprising:

  • a photocathode receiving photons and responsively releasing electrons, a microchannel plate disposed to receive said electrons and providing a proportionate electron shower, and an anode disposed to receive said electron shower and to produce a signal current therefrom, said photomultiplier tube including a unitary multi-layer base member substantially formed of ceramic material, said base member defining a recess and a peripheral rim portion circumscribing said recess, said recess partially bounding an evacuated chamber;

    said evacuated chamber receiving said photocathode, said microchannel plate, and said anode; and

    window means cooperating with said base member at said peripheral rim portion to completing the bounding of said evacuated chamber.

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