An optical fiber X-ray sensing array for small-field radiotherapy

被引：0

作者：

He, Bo ^{[1
]}

Chen, Ziyin ^{[1
]}

Wang, Jingjing ^{[1
]}

Wang, Libin ^{[2
]}

Hao, Wenjing ^{[1
]}

Yang, Haojie ^{[1
]}

Wang, Shengjia ^{[1
]}

Geng, Tao ^{[1
]}

Song, Yushou ^{[2
]}

Lewis, Elfed ^{[3
]}

Sun, Weimin ^{[1
]}

机构：

[1] Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R China

[2] Harbin Engn Univ, Coll Nucl Sci & Technol, Harbin, Peoples R China

[3] Univ Limerick, Opt Fiber Sensors Res Ctr, Limerick, Ireland

来源：

OPTICS IN HEALTH CARE AND BIOMEDICAL OPTICS XIII | 2023年 / 12770卷

关键词：

small-field radiotherapy; fiber sensors; optical fiber X-ray sensor array; optical switch;

D O I：

10.1117/12.2689094

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The small-field radiotherapy is a developing technique because it can reduce the damage to normal tissues. However measurement of the dose distributions of small radiation fields in radiotherapy is a challenge. In this work, we designed and produced an optic fiber X-ray sensor array with high spatial resolution. The sensing array includes 7 sensing probes connecting to an 8-channel optical switch and a photon counting detector (PCD). To verify the practicality of the system, these sensors were measured under a 10x10 cm(2) field of a medical linear accelerator. For the small-field application, the dose distribution of radiotherapy fields 1x1 cm(2) and 0.8x0.8 cm(2) were measured. The distribution of these small radiotherapy fields were given based on the experimental results.

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