Directional Dependence of Gafchromic LD-V1

Gafchromic LD-V1 (LD-V1) is a highly sensitive radiochromic film used as a radiation measurement technique that can be applied to the surface of an object because of its flexibility. However, if radiation is incident on the film from an angle other than perpendicular, the film’s sensitivity may change depending on the angle of incidence. In this study, we investigated the directional dependence of LD-V1 on the surface of an acrylic phantom. The relative sensitivity at the angle of perpendicular incidence of X-rays on the film was 54.5%, while the relative sensitivity at other angles exceeded 90%. The LD-V1 can perform measurements at angles other than perpendicular X-ray incidence.

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Publication Details

Journal
Journal of Medical Physics
Published
2025-04-01
DOI
https://doi.org/10.4103/jmp.jmp_154_24
Primary Topic
Photoreceptor and optogenetics research
Type
article
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article

Directional Dependence of Gafchromic LD-V1

Hidetoshi Yatake, Nobuyoshi Tanki, Rumi Gotanda, Shinnosuke Nishihara et al.
4 links
Journal of Medical Physics
Photoreceptor and optogenetics research
article

Directional Dependence of Gafchromic LD-V1

Hidetoshi Yatake, Nobuyoshi Tanki, Rumi Gotanda, Shinnosuke Nishihara, Toshizo Katsuda, Takuya Akagawa, Tomoyuki Hasuo, Tatsuhiro Gotanda, Shinya Imai, Yasuyuki Kawaji
article en

Abstract

Gafchromic LD-V1 (LD-V1) is a highly sensitive radiochromic film used as a radiation measurement technique that can be applied to the surface of an object because of its flexibility. However, if radiation is incident on the film from an angle other than perpendicular, the film’s sensitivity may change depending on the angle of incidence. In this study, we investigated the directional dependence of LD-V1 on the surface of an acrylic phantom. The relative sensitivity at the angle of perpendicular incidence of X-rays on the film was 54.5%, while the relative sensitivity at other angles exceeded 90%. The LD-V1 can perform measurements at angles other than perpendicular X-ray incidence.

Journal of Medical PhysicsVol. 50(2)
Morinomiya University of Medical Sciences (JP), Junshin Gakuen University (JP), Tokushima Red Cross Hospital (JP), Osaka International Cancer Institute (JP), Takarazuka City Hospital (JP), Kawasaki University of Medical Welfare (JP)
Openalex Percentile: Top 83%
Photoreceptor and optogenetics research
DOIOpen Access PDFOpenAlex
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Directional Dependence of Gafchromic LD-V1 — Hidetoshi Yatake, Nobuyoshi Tanki, et al. · Journal of Medical Physics (2025) | TGRS Research Map | TGRS