Isomerization behavior of fulgide-type photochromic compounds upon X-ray irradiation

Ichiro Kawamura, Masanori Koshimizu, Yutaka Fujimoto, Hiroki Kawamoto, Keisuke Asai

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


We fabricated poly(methyl methacrylate)-besed films containing Aberchrome 670 (Ab670) and investigated the isomerization behavior of the Ab670 upon X-ray irradiation with the aim of developing a tissue-equivalent and non-disposable radiation imaging element. The effect of the addition of the organic phosphor 2-(4-tert-butylphenyl)-5-(4-biphenylyl)-1,3,4-oxadiazole was also studied. The absorption peak around 520 nm increased upon UV irradiation and that around 490 nm increased upon X-ray irradiation, while an additional irreversible reaction was also observed. These results suggest that the photochromic reaction and the other reaction proceeded simultaneously, triggered by X-ray irradiation.

Original languageEnglish
Article number022003
JournalJapanese Journal of Applied Physics
Issue number2
Publication statusPublished - 2019


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