Experimental consolidation and absolute measurement of the nat C(p,x)11 C nuclear activation cross section at 100 MeV for particle therapy physics

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dc.contributor.authorBäcker, Claus Maximilian
dc.contributor.authorHorst, Felix
dc.contributor.authorAdi, Wihan
dc.contributor.authorBäumer, Christian
dc.contributor.authorGerhardt, Marcel
dc.contributor.authorJentzen, Walter
dc.contributor.authorKazek, Sandra Laura
dc.contributor.authorKröninger, Kevin
dc.contributor.authorSchuy, Christoph
dc.contributor.authorVerbeek, Nico
dc.contributor.authorWeingarten, Jens
dc.contributor.authorWulff, Jörg
dc.contributor.authorTimmermann, Beate
dc.date.accessioned2022-03-23T17:03:30Z
dc.date.available2022-03-23T17:03:30Z
dc.date.issued2021-08-02
dc.description.abstractThe natC(p,x)11C reaction has been discussed in detail in the past [EXFOR database, Otuka et al. (Nuclear Data Sheets 120:272–276, 2014)]. However, measured activation cross sections by independent experiments are up to 15% apart. The aim of this study is to investigate underlying reasons for these observed discrepancies between different experiments and to determine a new consensus reference cross section at 100 MeV. Therefore, the experimental methods described in the two recent publications [Horst et al. (Phys Med Biol https://doi.org/10.1088/1361-6560/ab4511 [Titel anhand dieser DOI in Citavi-Projekt übernehmen] , 2019) and Bäcker et al. (Nuclear Instrum Methods Phys Res B 454:50–55, 2019)] are compared in detail and all experimental parameters are investigated for their impact on the results. For this purpose, a series of new experiments is performed. With the results of the experiments a new reference cross section of (68±3) mb is derived at (97±3) MeV proton energy. This value combined with the reliably measured excitation function could provide accurate cross section values for the energy region of proton therapy. Because of the well-known gamma-ray spectrometer used and the well-defined beam characteristics of the treatment machine at the proton therapy center, the experimental uncertainties on the absolute cross section could be reduced to 3%. Additionally, this setup is compared to the in-beam measurement setup from the second study presented in the literature (Horst et al. 2019). Another independent validation of the measurements is performed with a PET scanner.en
dc.identifier.urihttp://hdl.handle.net/2003/40825
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-22682
dc.language.isoende
dc.relation.ispartofseriesThe European physical journal / A;Bd 57. 2021, Heft 8, Artikel-ID 248
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject.ddc530
dc.titleExperimental consolidation and absolute measurement of the nat C(p,x)11 C nuclear activation cross section at 100 MeV for particle therapy physicsen
dc.typeTextde
dc.type.publicationtypearticlede
dcterms.accessRightsopen access
eldorado.secondarypublicationtruede
eldorado.secondarypublication.primarycitationThe European physical journal / A. Vol. 57. 2021, Heft 8, Artikel-ID 248en
eldorado.secondarypublication.primaryidentifierhttps://doi.org/10.1140/epja/s10050-021-00557-xde

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