TY - GEN
T1 - An Improved Convolution Algorithm of Cylinder String Based on Unified Coordinate System
AU - Fan, Ziting
AU - Lei, Yuxin
AU - Zhang, Jun
AU - Yang, Ruijie
AU - Wen, Junhai
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - Tube string convolution algorithm is a commonly used dose verification algorithm in radiotherapy. It has the advantages of fast operation time, high verification accuracy, and no need for specific structural parameters of the accelerator head for modeling. However, it is often necessary to establish a ray coordinate system for each ray and divide the cylinder string area in the ray coordinate system, which makes the algorithm involve multi coordinate system conversion and other issues. In this paper, a CCC algorithm in a unified coordinate system is proposed to solve this problem. On the premise of not affecting the verification accuracy, the affected points and their outer point coordinates are used to divide the cylinder string area, avoiding the problem of coordinate conversion in multiple coordinate systems, and simplifying the algorithm modeling process.
AB - Tube string convolution algorithm is a commonly used dose verification algorithm in radiotherapy. It has the advantages of fast operation time, high verification accuracy, and no need for specific structural parameters of the accelerator head for modeling. However, it is often necessary to establish a ray coordinate system for each ray and divide the cylinder string area in the ray coordinate system, which makes the algorithm involve multi coordinate system conversion and other issues. In this paper, a CCC algorithm in a unified coordinate system is proposed to solve this problem. On the premise of not affecting the verification accuracy, the affected points and their outer point coordinates are used to divide the cylinder string area, avoiding the problem of coordinate conversion in multiple coordinate systems, and simplifying the algorithm modeling process.
KW - TERMA
KW - Tube string axis
KW - kernel function
KW - unified coordinate system
UR - http://www.scopus.com/inward/record.url?scp=85171738997&partnerID=8YFLogxK
U2 - 10.1109/ICSPS58776.2022.00138
DO - 10.1109/ICSPS58776.2022.00138
M3 - Conference contribution
AN - SCOPUS:85171738997
T3 - Proceedings - 2022 14th International Conference on Signal Processing Systems, ICSPS 2022
SP - 754
EP - 759
BT - Proceedings - 2022 14th International Conference on Signal Processing Systems, ICSPS 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th International Conference on Signal Processing Systems, ICSPS 2022
Y2 - 18 November 2022 through 20 November 2022
ER -