4.4 Article

Novel data evaluation algorithm for Coincident Doppler Broadening Spectroscopy

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2014.01.066

Keywords

Defect characterization; Doppler Broadening Spectroscopy; Data evaluation

Funding

  1. BMBF(Bundesministerium fur Bildung und Forschung)
  2. CDBS

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In Coincident Doppler Broadening Spectroscopy(CDBS) the sum energy of the annihilation photons is checked to be 1022 keV, to validate the measurement of an undisturbed two- gamma electron- positron decay event. The events are stored in a two- dimensional acquisition matrix. A new algorithmis presented, which optimizes the extraction of the one- dimensional CDBS spectrum from this matrix by enhanced background suppression by the use of variable size bins. (C) 2014 ElsevierB.V.All rights reserved.

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