Monte Carlo analysis of germanium detector performance in slow positron beam experiments

J. Heikinheimo (Corresponding Author), R. Tuominen, F. Tuomisto

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

Abstract

Positron annihilation Doppler broadening spectroscopy is one of the most popular positron annihilation vacancy characterization techniques in experimental materials research. The measurements are often carried out with a slow positron beam setup, which enables depth profiling of the samples. The key measurement devices of Doppler broadening spectroscopy setups are high-purity germanium detectors. Since Doppler broadening spectroscopy is one of the standard techniques in defect characterization, there is a demand to evaluate different kinds of factors that might have an effect on the results. Here we report the results of Monte Carlo simulations of detector response in different geometries and compare the data to experiments.

Original languageEnglish
Article number012023
JournalJournal of Physics: Conference Series
Volume674
Issue number1
DOIs
Publication statusPublished - 26 Jan 2016
MoE publication typeA4 Article in a conference publication
EventInternational Workshop on Positron Studies of Defects 2014, PSD 2014 - Kyoto, Japan
Duration: 14 Sep 201419 Sep 2014

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positrons
germanium
positron annihilation
detectors
spectroscopy
purity
defects
geometry
simulation

Cite this

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Monte Carlo analysis of germanium detector performance in slow positron beam experiments. / Heikinheimo, J. (Corresponding Author); Tuominen, R.; Tuomisto, F.

In: Journal of Physics: Conference Series, Vol. 674, No. 1, 012023, 26.01.2016.

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

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