Comparison Study on Low Energy Physics Model of GEANT4

GEANT4 저 에너지 전자기 물리 모델에 대한 비교 연구

  • Park, So-Hyun (Department of Biomedical Engineering, the Catholic University of Korea) ;
  • Jung, Won-Gyun (Department of Biomedical Engineering, the Catholic University of Korea) ;
  • Suh, Tae-Suk (Department of Biomedical Engineering, the Catholic University of Korea)
  • Received : 2010.05.18
  • Accepted : 2010.06.22
  • Published : 2010.09.30

Abstract

The Geant4 simulation toolkit provides improved or renewed physics model according to the version. The latest Geant4.9.3 which has been recoded by developers applies inserted Livermore data and renewed physics model to the low energy electromagnetic physics model. And also, Geant4.9.3 improved the physics factors by modified code. In this study, the stopping power and CSDA(Continuously Slowing Down Approximation) range data of electron or particles were acquired in various material and then, these data were compared with NIST(National Institute of Standards and Technology) data. Through comparison between data of Geant4 simulation and NIST, the improvement of physics model on low energy electromagnetic of Geant4.9.3 was evaluated by comparing the Geant4.9.2.

Acknowledgement

Grant : 차세대 지능형 방사선 치료계획 시스템 개발

Supported by : 차세대 의학물리 핵심기술 개발센터

References

  1. http://www.geant4.org/geant4/ Andreo P. Monte Carlo techniques in medical radiation physics. Phys. Med. Biol. 1991;36(7):861‐920. https://doi.org/10.1088/0031-9155/36/7/001
  2. Agostinelli S, Allison J, Amako K, Apostolakis, Araujo H, Arce P. Geant4‐a simulation toolkit. Nucl. Instrum. Meth. 2003 February; 506:250‐303. https://doi.org/10.1016/S0168-9002(03)01368-8
  3. Guatelli S, Mascialino B, Pia MG, Piergentili M. Precision validation of Geant4 electromagnetic physics. American Nuclear Society Topical Meeting in Monte Carlo 2005 April:17‐21.
  4. Emily P, Frank V. Accuracy of the photon and electron physics in GEANT4 for radiotherapy applications. Med. Phys. 2005 May;32(6):1696‐1711. https://doi.org/10.1118/1.1895796
  5. Chen Y, Ahmad S. Evaluation of inelastic hadronic processes for 250 MeV proton interactions in tissue and iron using Geant4. Radiation Protection dosimetry 2009 July; 136(1):11‐16. https://doi.org/10.1093/rpd/ncp149
  6. http://physics.nist.gov Katsuya A, Susanna G, Vladimir N. I, Michel M, Barbara M, Koichi M. Comparison of Geant4 electromagnetic physics models against the nist reference data. IEEE 2005 May.
  7. Chen J, Kellerer AM, Rossi HH. Radially restricted linear energy transfer for high‐energy proton: a new analytical approach. Radiat. Environ. Biophys. 1994;33:181‐187. https://doi.org/10.1007/BF01212674
  8. Apostolakis J, Grichine VM, Ivanchenko VN. The recent upgrades in the standard electromagnetic physics package. Proceedings of the CHEP'06 Conference 2006.
  9. Chen J, Kellerer AM, Rossi HH. Radially restricted linear energy transfer for high-energy proton: a new analytical approach. Radiat. Environ. Biophys. 1994;33:181-187. https://doi.org/10.1007/BF01212674
  10. Apostolakis J, Grichine VM, Ivanchenko VN. The recent upgrades in the standard electromagnetic physics package. Proceedings of the CHEP'06 Conference 2006.