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Luminous body, electron beam detector using the same, scanning electron microscope, and mass analysis device

  • US 7,910,895 B2
  • Filed: 04/07/2005
  • Issued: 03/22/2011
  • Est. Priority Date: 04/08/2004
  • Status: Active Grant
First Claim
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1. An electron beam detector, comprising:

  • a light-emitting body that emits fluorescence in response to incidence of electrons, said light-emitting body comprising;

    a substrate;

    a nitride semiconductor layer having a quantum well structure formed on one of faces of said substrate;

    a cap layer formed on said nitride semiconductor layer, said cap layer having an electron incidence face; and

    a metal backing layer formed on the cap layer; and

    wherein a thickness of said cap layer is not more than 10 nm.

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