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Consistency checks of results from a Monte Carlo code intercomparison for emitted electron spectra and energy deposition around a single gold nanoparticle irradiated by X-rays

Rabus, H.; Li, W. B.; Nettelbeck, H.; Schuemann, J.; Villagrasa, C.; Beuve, M.; Di Maria, S.; Heide, B. 1; Klapproth, A. P.; Poignant, F.; Qiu, R.; Rudek, B.
1 Karlsruher Institut für Technologie (KIT)

Abstract:

Organized by the European Radiation Dosimetry Group (EURADOS), a Monte Carlo code intercomparison exercise was conducted where participants simulated the emitted electron spectra and energy deposition around a single gold nanoparticle (GNP) irradiated by X-rays. In the exercise, the participants scored energy imparted in concentric spherical shells around a spherical volume filled with gold or water as well as the spectral distribution of electrons leaving the GNP. Initially, only the ratio of energy deposition with and without GNP was to be reported. During the evaluation of the exercise, however, the data for energy deposition in the presence and absence of the GNP were also requested. A GNP size of 50 nm and 100 nm diameter was considered as well as two different X-ray spectra (50 kVp and 100 kVp). This introduced a redundancy that can be used to cross-validate the internal consistency of the simulation results. In this work, evaluation of the reported results is presented in terms of integral quantities that can be benchmarked against values obtained from physical properties of the radiation spectra and materials involved. The impact of different interaction cross-section datasets and their implementation in the different Monte Carlo codes is also discussed.


Verlagsausgabe §
DOI: 10.5445/IR/1000136980
Veröffentlicht am 08.09.2021
Originalveröffentlichung
DOI: 10.1016/j.radmeas.2021.106637
Scopus
Zitationen: 2
Web of Science
Zitationen: 2
Dimensions
Zitationen: 3
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nukleare Entsorgung (INE)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 09.2021
Sprache Englisch
Identifikator ISSN: 1350-4487, 1879-0925
KITopen-ID: 1000136980
HGF-Programm 32.11.02 (POF IV, LK 01) Predisposal
Erschienen in Radiation Measurements
Verlag Elsevier
Band 147
Seiten Art.-Nr.: 106637
Vorab online veröffentlicht am 30.07.2021
Nachgewiesen in Scopus
Dimensions
Web of Science
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