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Fast model of electron transport for radiographic spectrum simulation
- Correctly modeling the continuous photon spectrum of X-ray tubes requires detailed knowledge of the probability distribution of electron properties at the time of X-ray photon creation, in particular electron energy, depth within the target, and direction of movement. Semi-analytical X-ray spectrum models frequently assume a very simplified or even uniform distribution of electron direction. In the case of thick targets and small deviations from normal incidence this is a useful approximation. For thin targets or large deviations from normal incidence the correct distribution of electron directions becomes more important. As calculation speed is an important aspect of semi-analytical models compared to Monte Carlo simulations, fast evaluation of the distribution of electron properties is highly desirable. The approach presented here numerically evaluates the evolution of a discrete probability distribution of electron properties due to single electron scatter interactions within aCorrectly modeling the continuous photon spectrum of X-ray tubes requires detailed knowledge of the probability distribution of electron properties at the time of X-ray photon creation, in particular electron energy, depth within the target, and direction of movement. Semi-analytical X-ray spectrum models frequently assume a very simplified or even uniform distribution of electron direction. In the case of thick targets and small deviations from normal incidence this is a useful approximation. For thin targets or large deviations from normal incidence the correct distribution of electron directions becomes more important. As calculation speed is an important aspect of semi-analytical models compared to Monte Carlo simulations, fast evaluation of the distribution of electron properties is highly desirable. The approach presented here numerically evaluates the evolution of a discrete probability distribution of electron properties due to single electron scatter interactions within a plane target. This allows capturing the important aspects of the electron distribution while achieving runtimes of a few seconds up to a minute on a standard office PC.…
Autor*innen: | Andreas Deresch, Carsten BellonORCiD, Gerd-Rüdiger Jaenisch, Uwe Ewert |
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Persönliche Herausgeber*innen: | D.E. Chimenti, L.J. Bond |
Dokumenttyp: | Beitrag zu einem Tagungsband |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | 41st Annual review of progress in quantitative nondestructive evaluation (Proceedings) |
Jahr der Erstveröffentlichung: | 2015 |
Herausgeber (Institution): | American institute of physics (AIP) |
Verlag: | AIP Publishing |
Jahrgang/Band: | 1650 |
Erste Seite: | 579 |
Letzte Seite: | 585 |
Freie Schlagwörter: | Modeling; Radiography; Spectrum; Valildation |
Veranstaltung: | 41st Annual review of progress in quantitative nondestructive evaluation |
Veranstaltungsort: | Boise, Idaho, USA |
Beginndatum der Veranstaltung: | 20.07.2014 |
Enddatum der Veranstaltung: | 25.07.2014 |
DOI: | 10.1063/1.4914656 |
ISBN: | 978-0-7354-1292-7 |
Bemerkung: | Serientitel: AIP conference proceedings – Series title: AIP conference proceedings |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 20.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 23.04.2015 |