Development of simple high-precision two-dimensional dose-distribution measurement method for proton beam therapy using imaging plate and EBT3

2016 ◽  
Vol 39 (3) ◽  
pp. 687-696
Author(s):  
Yutaro Mori ◽  
Tomonori Isobe ◽  
Yoshiki Yamaguchi ◽  
Hideyuki Takei ◽  
Satoshi Kamizawa ◽  
...  
Keyword(s):  
Proton Beam ◽  
High Precision ◽  
Dose Distribution ◽  
Measurement Method ◽  
Proton Beam Therapy ◽  
Imaging Plate ◽  
Two Dimensional ◽  
Distribution Measurement

Computational evaluation of dose distribution for BNCT treatment combined with X-ray therapy or proton beam therapy

2020 ◽  
Vol 165 ◽  
pp. 109295
Author(s):  
Kenta Takada ◽  
Hiroaki Kumada ◽  
Akira Matsumura ◽  
Hideyuki Sakurai ◽  
Takeji Sakae
Keyword(s):  
Proton Beam ◽  
Dose Distribution ◽  
Proton Beam Therapy ◽  
X Ray ◽  
Computational Evaluation

Two-dimensional high-precision non-contact automatic measurement method based on image corner coordinates

2021 ◽  
pp. 095440622098112
Author(s):  
Maoyue Li ◽  
Yonghao Xu ◽  
Zengtao Chen ◽  
Kangsheng Ma ◽  
Lifei Liu
Keyword(s):  
High Precision ◽  
Measurement Method ◽  
Low Cost ◽  
Automatic Measurement ◽  
Detection Algorithm ◽  
Contour Detection ◽  
Two Dimensional ◽  
High Precision Measurement ◽  
Standard Size ◽  
Actual Size

Aiming at some shortcomings of the existing non-contact two-dimensional high-precision measurement methods, this paper proposes a two-dimensional high-precision non-contact automatic measurement method based on the corner coordinates of the image. Firstly, this paper designs a set of simple image acquisition device and explains the advantages of the Canny operator used in the image contour detection algorithm. Subsequently, this paper proposes a dimension calibration algorithm based on image corner coordinates, which can convert the pixel size to the actual size, and achieves the function of the algorithm by hierarchical, multi-step processing of the image. Finally, in order to realize the intelligent positioning and selection of the standard size workpiece position, an automatic measurement and positioning system is designed, which can convert the actual size signal into the pulse time control signal. The experimental results show that the measurement method proposed in this paper has the advantages of fast measurement speed, high robustness, low cost and high degree of automation. When using a black-and-white checkerboard paper with an accuracy of 0.1 mm, the measurement accuracy can reach the micron level.

scholarly journals Dose distribution effects of spot‑scanning proton beam therapy equipped with a multi‑leaf collimator for pediatric brain tumors

2021 ◽  
Vol 22 (2) ◽  
Author(s):  
Nobuyoshi Fukumitsu ◽  
Tomohiro Yamashita ◽  
Masayuki Mima ◽  
Yusuke Demizu ◽  
Takeshi Suzuki ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Proton Beam ◽  
Dose Distribution ◽  
Proton Beam Therapy ◽  
Pediatric Brain Tumors ◽  
Spot Scanning ◽  
Multi Leaf Collimator ◽  
Pediatric Brain

Device for Depth–Dose Distribution Measurement of a Medical Proton Beam in Radiotherapy

2014 ◽  
Vol 47 (5) ◽  
pp. 253-256
Author(s):  
A. V. Agapov ◽  
G. V. Mitsyn ◽  
S. V. Shvidkij ◽  
K. N. Shipulin
Keyword(s):  
Proton Beam ◽  
Dose Distribution ◽  
Distribution Measurement ◽  
Depth Dose ◽  
Depth Dose Distribution
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