Doppler broadening of positron annihilat
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E. do Nascimento; O. Helene; C. Takiya; V.R. Vanin
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Article
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2005
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Elsevier Science
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English
β 577 KB
The profile of the annihilation radiation in aluminum using positrons from a 22 Na source was observed in a two-HPGe-detectors arrangement. The coincidence photon energy spectrum was fitted using a model function, accounting for both Doppler broadening and detector system response. Intensities of th