TY - JOUR
T1 - Fiber Optic Plate Coupled Pb-Free Perovskite X-ray Camera Featuring Low-Dose-Rate Imaging toward Dental Diagnosis
AU - Yang, Zhi
AU - Wang, Tianchi
AU - Xu, Xuhui
AU - Yao, Jisong
AU - Xu, Leimeng
AU - Wang, Shalong
AU - Xu, Yadong
AU - Song, Jizhong
N1 - Publisher Copyright:
© 2023 American Chemical Society.
PY - 2023/1/19
Y1 - 2023/1/19
N2 - Copper-based halide perovskites have been considered as promising scintillators. However, they still cannot meet the requirement of low-dose-rate X-ray imaging in medical diagnosis. Herein, we design a fiber optic plate (FOP) coupled perovskite X-ray camera to reduce the dose rate toward dental X-ray imaging. Tl doped Cs3Cu2I5 prepared via molten salt reaction has a high light yield of 72,000 photons/MeV, resulting from Tl10/Tl20-self-trapped hole emissions. After FOP coupling, the pulp cavity, root canal, dentin and root canal file can be clearly observed under a low dose rate as low as 3 μGyair s-1, which is absolutely lower than the required 5.5 μGyair s-1 for commercial intraoral dental sensors. The realization of such a low dose rate is attributed to the high coupling efficiency of 75% for the FOP and the high brightness of 262 lm m-2 for the scintillation screen. This designed portable X-ray camera shows its huge potential in intraoral dental X-ray imaging.
AB - Copper-based halide perovskites have been considered as promising scintillators. However, they still cannot meet the requirement of low-dose-rate X-ray imaging in medical diagnosis. Herein, we design a fiber optic plate (FOP) coupled perovskite X-ray camera to reduce the dose rate toward dental X-ray imaging. Tl doped Cs3Cu2I5 prepared via molten salt reaction has a high light yield of 72,000 photons/MeV, resulting from Tl10/Tl20-self-trapped hole emissions. After FOP coupling, the pulp cavity, root canal, dentin and root canal file can be clearly observed under a low dose rate as low as 3 μGyair s-1, which is absolutely lower than the required 5.5 μGyair s-1 for commercial intraoral dental sensors. The realization of such a low dose rate is attributed to the high coupling efficiency of 75% for the FOP and the high brightness of 262 lm m-2 for the scintillation screen. This designed portable X-ray camera shows its huge potential in intraoral dental X-ray imaging.
UR - http://www.scopus.com/inward/record.url?scp=85146164313&partnerID=8YFLogxK
U2 - 10.1021/acs.jpclett.2c03586
DO - 10.1021/acs.jpclett.2c03586
M3 - 文章
C2 - 36603192
AN - SCOPUS:85146164313
SN - 1948-7185
VL - 14
SP - 326
EP - 333
JO - Journal of Physical Chemistry Letters
JF - Journal of Physical Chemistry Letters
IS - 2
ER -