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Benchmarking the evaluated proton differential cross sections suitable for the EBS analysis of natSi and 16O

Kokkoris, M.; Dede, S.; Kantre, K.; Lagoyannis, A.; Ntemou, E.; Paneta, V.; Preketes-Sigalas, K.; Provatas, G.; Vlastou, R.; Bogdanović Radović, Ivančica; Siketić, Zdravko; Obajdin, N. (2017) Benchmarking the evaluated proton differential cross sections suitable for the EBS analysis of natSi and 16O. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 405 . pp. 50-60. ISSN 0168-583X

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Abstract

The evaluated proton differential cross sections suitable for the Elastic Backscattering Spectroscopy (EBS) analysis of natSi and 16O, as obtained from SigmaCalc 2.0, have been benchmarked over a wide energy and angular range at two different accelerator laboratories, namely at N.C.S.R. ‘Demokritos’, Athens, Greece and at Ruder Boškovic´ Institute (RBI), Zagreb, Croatia, using a variety of high-purity thick targets of known stoichiometry. The results are presented in graphical and tabular forms, while the observed discrepancies, as well as, the limits in accuracy of the benchmarking procedure, along with target related effects, are thoroughly discussed and analysed. In the case of oxygen the agreement between simulated and experimental spectra was generally good, while for silicon serious discrepancies were observed above Ep, lab = 2.5 MeV, suggesting that a further tuning of the appropriate nuclear model parameters in the evaluated differential cross-section datasets is required.

Item Type: Article
Uncontrolled Keywords: p–EBS ; Silicon ; Oxygen ; differential cross section ; benchmarking
Subjects: NATURAL SCIENCES > Physics
Divisions: Division of Experimental Physics
Depositing User: Ivančica Bogdanović Radović
Date Deposited: 25 Aug 2017 13:18
Last Modified: 25 Aug 2017 13:18
URI: http://fulir.irb.hr/id/eprint/3545
DOI: 10.1016/j.nimb.2017.05.021

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