Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2011, Vol. 22 ›› Issue (6): 349-352 doi: 10.13538/j.1001-8042/nst.22.349-352

• RADIOCHEMISTRY, RADIOPHARMACEUTICALS AND NUCLEAR MEDICIN • Previous Articles     Next Articles

Using GPU to calculate electron dose for hybrid pencil beam model

GOU Chengjun LI Xia HOU Qing WU Zhangwen~*   

  1. Key Laboratory for Radiation Physics and Technology of Ministry of Education,Institute of Nuclear Science and Technology,Sichuan University, Chengdu 610064,China
GOU Chengjun, LI Xia, HOU Qing, WU Zhangwen. Using GPU to calculate electron dose for hybrid pencil beam model.Nuclear Science and Techniques, 2011, 22(6): 349-352     doi: 10.13538/j.1001-8042/nst.22.349-352

Abstract:

Hybrid pencil beam model(HPBM) offers an efficient approach to calculate the three-dimension dose distribution from a clinical electron beam.Still,clinical radiation treatment activity desires faster treatment plan process.Our work presented the fast implementation of HPBM-based electron dose calculation using graphics processing unit(GPU).The HPBM algorithm was implemented in compute unified device architecture running on the GPU,and C running on the CPU,respectively.Several tests with various sizes of the field,beamlet and voxel were used to evaluate our implementation.On an NVIDIA GeForce GTX470 GPU card,we achieved speedup factors of 2.18- 98.23 with acceptable accuracy,compared with the results from a Pentium E5500 2.80 GHz Dual-core CPU.

Key words: GPU, HPBM, Dose calculation