Reusable radiochromic hackmanite with gamma exposure memory.

Autor: Vuori S; Department of Chemistry, University of Turku, FI-20014 Turku, Finland. miklas@utu.fi.; University of Turku Graduate School (UTUGS), Doctoral Programme in Physical and Chemical Sciences (PCS), FI-20014 Turku, Finland., Colinet P; Laboratoire de Chimie, University of Lyon, ENS de Lyon, CNRS, Université Lyon 1, UMR 5182, Lyon, France. tangui.le_bahers@ens-lyon.fr., Lehtiö JP; University of Turku Graduate School (UTUGS), Doctoral Programme in Physical and Chemical Sciences (PCS), FI-20014 Turku, Finland.; Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland., Lemiere A; Photonics Laboratory, Tampere University, FI-33720 Tampere, Finland., Norrbo I; Department of Chemistry, University of Turku, FI-20014 Turku, Finland. miklas@utu.fi., Granström M; FOI, Swedish Defence Research Agency, SE-90182 Umeå, Sweden., Konu J; Department of Chemistry, University of Jyväskylä, FI-40014 Jyväskylä, Finland., Ågren G; FOI, Swedish Defence Research Agency, SE-90182 Umeå, Sweden., Laukkanen P; Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland., Petit L; Photonics Laboratory, Tampere University, FI-33720 Tampere, Finland., Airaksinen AJ; Department of Chemistry, Turku PET Centre, University of Turku, FI-20521 Turku, Finland., van Goethem L; Mineralogical Society of Antwerp, Boterlaarbaan 225, 2100 Deurne, Belgium., Le Bahers T; Laboratoire de Chimie, University of Lyon, ENS de Lyon, CNRS, Université Lyon 1, UMR 5182, Lyon, France. tangui.le_bahers@ens-lyon.fr., Lastusaari M; Department of Chemistry, University of Turku, FI-20014 Turku, Finland. miklas@utu.fi.
Jazyk: angličtina
Zdroj: Materials horizons [Mater Horiz] 2022 Oct 31; Vol. 9 (11), pp. 2773-2784. Date of Electronic Publication: 2022 Oct 31.
DOI: 10.1039/d2mh00593j
Abstrakt: Radiochromic films are used as position-sensitive dose meters in e.g. medical physics and radiation processing. The currently available films like those based on lithium-10,12-pentacosdiynoate or leucomalachite green are either toxic or non-reusable, or both. There is thus a great need for a sustainable solution for radiochromic detection. In the present work, we present a suitable candidate: hackmanite with the general formula Na 8 Al 6 Si 6 O 24 (Cl,S) 2 . This material is known as a natural intelligent material capable of changing color when exposed to ultraviolet radiation or X-rays. Here, we show for the first time that hackmanites are also radiochromic when exposed to alpha particles, beta particles (positrons) or gamma radiation. Combining experimental and computational data we elucidate the mechanism of gamma-induced radiochromism in hackmanites. We show that hackmanites can be used for gamma dose mapping in high dose applications as well as a memory material that has the one-of-a-kind ability to remember earlier gamma exposure. In addition to satisfying the requirements of sustainability, hackmanites are non-toxic and the films made of hackmanite are reusable thus showing great potential to replace the currently available radiochromic films.
Databáze: MEDLINE
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