Benchmarking experiments for the proton backscattering on 23Na, 31P and natS up to 3.5 MeV

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:328

Article

Paneta, V.^1,2  Colaux, J. L.³  Gurbich, A. F.^3,4  Jeynes, C.³  Kokkoris, M.² 

[1] NCSR Demokritos, Inst Nucl & Particle Phys, Tandem Accelerator Lab, Athens 15310, Greece

[2] Natl Tech Univ Athens, Dept Phys, Athens 15780, Greece

[3] Univ Surrey, Ion Beam Ctr, Guildford GU2 7XH, Surrey, England

[4] Inst Phys & Power Engn, Obninsk 249033, Russia

关键词: Sodium;    Phosphorus;    Sulphur;    EBS;    Benchmarking;    Validation;   

DOI  :  10.1016/j.nimb.2014.02.010

来源: Elsevier

【 摘 要 】

The benchmarking procedure in IBA (Ion Beam Analysis) regards the validation of charged-particle differential cross-section data via the acquisition of EBS (Elastic Backscattering Spectrometry) spectra from uniform thick target of known composition followed by their detailed simulation. In the present work such benchmarking measurements have been performed for the elastic scattering of protons on Na-23, P-31 and S-nat in the energy range of 1-3.5 MeV in steps of 250 key at three backward angles, at 120.6 degrees, 148.8 degrees and 173.5 degrees in an attempt to validate the corresponding existing evaluated cross-section datasets from SigmaCalc and to facilitate their extension at higher energies. The EBS spectra acquired were compared with simulated ones using the DataFurnace code, along with an a posteriori treatment of the surface roughness. All the experimental parameters were thoroughly investigated and the results obtained and the discrepancies found are discussed and analyzed. (C) 2014 Elsevier B.V. All rights reserved.

【 授权许可】

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