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MOSSBAUER SPECTROMETER

  • US 20100158189A1
  • Filed: 05/14/2008
  • Published: 06/24/2010
  • Est. Priority Date: 05/15/2007
  • Status: Abandoned Application
First Claim
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1. A Mossbauer spectrometer, comprising:

  • a sample stage for holding a sample containing a target substance under Mossbauer spectrometry;

    γ

    -ray irradiating means, having a γ

    -ray source for supplying measurement γ

    rays having a predetermined energy and used for spectrometry, for irradiating the sample with the measurement γ

    rays along a predetermined irradiation axis;

    converging means, placed between the γ

    -ray irradiating means and the sample stage, for irradiating the sample with the measurement γ

    rays in a converging manner;

    electron detecting means, placed between the converging means and the sample stage, having an opening through which the measurement γ

    rays from the converging means are passed, and configured so that a surface on a side of the sample stage is used as an electron incident surface, for detecting internal conversion electrons emitted from the target substance in the sample in which the measurement γ

    rays are absorbed in resonance by the Mossbauer effect;

    irradiation position moving means for two-dimensionally moving an irradiation position of the measurement γ

    rays with respect to the sample within a plane perpendicular to the irradiation axis; and

    energy selecting voltage applying means for selecting energy of the electrons detected by the electron detecting means, out of the electrons from the sample, by applying an energy selecting voltage to the electron incident surface of the electron detecting means so that a potential of the electron incident surface is a negative potential with respect to the sample on the sample stage.

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