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Linearity studies of HD-810 dosimeters by light ion beams
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SYSNO ASEP 0523919 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Linearity studies of HD-810 dosimeters by light ion beams Author(s) Torrisi, Alfio (UJF-V) RID, ORCID
Havránek, Vladimír (UJF-V) RID, SAI, ORCID
Cutroneo, Mariapompea (UJF-V) ORCID, RID, SAI
Vacík, Jiří (UJF-V) RID, ORCID, SAI
Torrisi, L. (IT)Number of authors 5 Source Title Radiation Effects and Defects in Solids. - : Taylor & Francis - ISSN 1042-0150
Roč. 175, 3-4 (2020), s. 383-393Number of pages 11 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords dosimetry ; HD-810GafChromatic (TM) film ; ion beam ; ion dose ; optical spectroscopy ; radiation ; radiochromic film Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders OECD category Nuclear physics R&D Projects LM2015056 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA19-02482S GA ČR - Czech Science Foundation (CSF) EF16_013/0001812 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UJF-V - RVO:61389005 UT WOS 000522130000015 EID SCOPUS 85082686791 DOI 10.1080/10420150.2019.1701469 Annotation Radiochromic films (RCF), also called GafChromic (TM) films, represent a performant material for accurate quantitative radiation dosimetry. Their compositions allow high dose sensitivity and fewer environmental dependence, giving a good feedback to the absorbed dose value and to the active media absorption, turning color upon being irradiated. The RCF take into account their reduced response near the Bragg peak due to a high linear energy transfer (LET). HD-810 GafChromic (TM) films are tissue-equivalent, have easy optical readings and can be employed for ion dosimetry in radio diagnostic and therapy and for industrial applications. Such dosimeters were employed at Tandetron-Nuclear Physics Institute (Rez, Czech Republic) to study the responses of helium, proton and carbon beams, commonly employed in radiotherapy and microelectronics. The sensitivity of the detector is low enough to measure multiple-beam exposures. The induced effects by the ions in the energy range of 600 keV to 2.0 MeV were investigated in terms of optical absorbance, measured in the irradiated active region of the polymer. The employed ion dose range was between 40 Gy and 2.5 kGy. The experimental results show that the absorbance increases with the irradiation time (i.e. with the absorbed dose). The absorbance induced in the radio chromic film was measured at 673 nm, at which is observed the highest sensitivity of the films. Such data, together with the dose linearity and the dependence on the ion stopping power will be presented and discussed. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2021 Electronic address https://doi.org/10.1080/10420150.2019.1701469
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