Comparison between PRIMO and EGSnrc Monte Carlo models of the Varian True Beam linear accelerator

被引：8

作者：

Aamri, Hussin ^{[1
,2
]}

Fielding, Andrew ^{[2
]}

Aamry, Ali ^{[3
]}

Sulieman, Abdelmoneim ^{[4
]}

Tamam, Nissren ^{[5
]}

Alkhorayef, Mohammed ^{[6
,7
]}

Bradley, David A. ^{[7
,8
]}

机构：

[1] King Saud Univ Med City KSUMC, Med Phys Dept, Riyadh, Saudi Arabia

[2] Queensland Univ Technol, Sci & Engn Fac, Brisbane, Qld, Australia

[3] King Saud Med City, Nucl Med Dept, Riyadh, Saudi Arabia

[4] Prince Sattam Bin Abdulaziz Univ, Coll Appl Med Sci, Radiol & Med Imaging, Alkharj, Saudi Arabia

[5] Princess Nourah Bint Abdulrahman Univ, Coll Sci, Phys Dept, POB 84428, Riyadh 11671, Saudi Arabia

[6] King Saud Univ, Coll Appl Med Sci, Dept Radiol Sci, POB 10219, Riyadh 11433, Saudi Arabia

[7] Univ Surrey, Dept Phys, Ctr Nucl & Radiat Phys, Guildford GU2 7XH, Surrey, England

[8] Sunway Univ, Ctr Biomed Phys, Jalan Univ, Pj 46150, Malaysia

来源：

RADIATION PHYSICS AND CHEMISTRY | 2021年 / 178卷

关键词：

Monte Carlo simulation; Flattening-filter free (FFF); Linear accelerator (LINAC); EGSnrc; Dose in build-up region; PRIMO Code; SIMULATION; PHOTON; PENELOPE; LINAC;

D O I：

10.1016/j.radphyschem.2020.109013

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The study objectives were to simulate a 6 MV flattening filter-free (FFF) photon beam of a TrueBeam Varian LINAC, using the PRIMO code. The depth-dose profiles for various jaw open fields and cross-beam profiles for various depths inside water phantoms were determined using PRIMO simulations and were compared with the EGSnrc simulation results. A 93% match between both codes has generally been obtained, with a systematic variation in agreement between the two models that increases with field size. The closest agreement, to within 94%, was obtained for a 6 x 6 cm(2) jaw open field at 5.0 cm and 10.0 cm depths, better at 10- than at 5.0 cm depth. The effects of how scatter is modelled has been shown to result in the differences.

引用

页数：9

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