دورية أكاديمية
SAXS data modelling for the characterisation of ion tracks in polymers.
| العنوان: | SAXS data modelling for the characterisation of ion tracks in polymers. |
|---|---|
| المؤلفون: | Wang X; State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China.; Department of Materials Physics, Research School of Physics, Australian National University, Canberra ACT 2601, Australia. patrick.kluth@anu.edu.au., Dutt S; Department of Materials Physics, Research School of Physics, Australian National University, Canberra ACT 2601, Australia. patrick.kluth@anu.edu.au., Notthoff C; Department of Materials Physics, Research School of Physics, Australian National University, Canberra ACT 2601, Australia. patrick.kluth@anu.edu.au., Kiy A; Department of Materials Physics, Research School of Physics, Australian National University, Canberra ACT 2601, Australia. patrick.kluth@anu.edu.au., Mota-Santiago P; Australian Synchrotron, ANSTO, 800 Blackburn Rd, Clayton, Victoria 3168, Australia., Mudie ST; Australian Synchrotron, ANSTO, 800 Blackburn Rd, Clayton, Victoria 3168, Australia., Toimil-Molares ME; GSI Helmholtzzentrum für Schwerionenforschung (GSI), Planckstr. 1, D-64291, Darmstadt, Germany., Liu F; State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China.; Center for Quantitative Biology, Peking University, Beijing 100871, People's Republic of China., Wang Y; State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China., Kluth P; Department of Materials Physics, Research School of Physics, Australian National University, Canberra ACT 2601, Australia. patrick.kluth@anu.edu.au. |
| المصدر: | Physical chemistry chemical physics : PCCP [Phys Chem Chem Phys] 2022 Apr 20; Vol. 24 (16), pp. 9345-9359. Date of Electronic Publication: 2022 Apr 20. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Royal Society of Chemistry Country of Publication: England NLM ID: 100888160 Publication Model: Electronic Cited Medium: Internet ISSN: 1463-9084 (Electronic) Linking ISSN: 14639076 NLM ISO Abbreviation: Phys Chem Chem Phys Subsets: PubMed not MEDLINE; MEDLINE |
| أسماء مطبوعة: | Original Publication: Cambridge [England] : Royal Society of Chemistry, c1999- |
| مستخلص: | Here, we present new models to fit small angle X-ray scattering (SAXS) data for the characterization of ion tracks in polymers. Ion tracks in polyethylene terephthalate (PET), polycarbonate (PC), polyimide (PI) and polymethyl methacrylate (PMMA) were created by swift heavy ion irradiation using 197 Au and 238 U with energies between 185 MeV and 2.0 GeV. Transmission SAXS measurements were performed at the Australian Synchrotron. SAXS data were analysed using two new models that describe the tracks by a cylindrical structure composed of a highly damaged core with a gradual transition to the undamaged material. First, we investigate the 'Soft Cylinder Model', which assumes a smooth function to describe the transition region by a gradual change in density from a core to a matrix. As a simplified and computational less expensive version of the 'Soft Cylinder Model', the 'Core Transition Model' was developed to enable fast fitting. This model assumes a linear increase in density from the core to the matrix. Both models yield superior fits to the experimental SAXS data compared with the often-used simple 'Hard Cylinder Model' assuming a constant density with an abrupt transition. |
| تواريخ الأحداث: | Date Created: 20220406 Latest Revision: 20220421 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1039/d1cp05813d |
| PMID: | 35383785 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 1463-9084 |
|---|---|
| DOI: | 10.1039/d1cp05813d |