Detection of X-Ray Doses with Color-Changing Hackmanites: Mechanism and Application

: Vuori Sami, Colinet Pauline, Norrbo Isabella, Steininger Ralph, Saarinen Timo, Palonen Heikki, Paturi Petriina, Rodrigues Lucas CV, Göttlicher Jörg, Le Bahers Tangui, Lastusaari Mika

Publisher: WILEY-V C H VERLAG GMBH

: 2021

: Advanced Optical Materials

: ADVANCED OPTICAL MATERIALS

: ADV OPT MATER

: ARTN 2100762

: 13

: 2195-1071

DOI: https://doi.org/10.1002/adom.202100762

: https://research.utu.fi/converis/portal/detail/Publication/66506604

Hackmanites, a variety of sodalite with the general formula Na8Al6Si6O24(Cl,S)(2), are a family of nature-based smart materials having the ability for reversible photochromism upon UV or X-ray exposure. Being nontoxic, cheap, and durable, hackmanite would be an optimal material for the visual detection of the presence of X-rays in simple portable systems. However, its X-ray-induced coloring abilities are so far known only qualitatively. In this work, a combination of experimental and computational methods is used to reveal the mechanism of X-ray-induced color changing in these materials. Finally, their use is demonstrated both in color intensity-based X-ray dosimetry and photochromic X-ray imaging.

adom.202100762.pdf