کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8208627 | 1532062 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
MCNP5 evaluation of photoneutron production from the Alexandria University 15â¯MV Elekta Precise medical LINAC
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Photoneutron production, and the dose equivalent, in the head assembly of the 15â¯MV Elekta Precise medical linac; operating in the faculty of Medicine at Alexandria University were estimated with the MCNP5 code. Photoneutron spectra were calculated in air and inside a water phantom to different depths as a function of the radiation field sizes. The maximum neutron fluence is 3.346Ã10â9 n/cm2-e for a 30Ã30â¯cm2 field size to 2-4â¯cm-depth in the phantom. The dose equivalent due to fast neutron increases as the field size increases, being a maximum of 0.912 ± 0.05â¯mSv/Gy at depth between 2 and 4â¯cm in the water phantom for 40Ã40â¯cm2 field size. Photoneutron fluence and dose equivalent are larger to 100â¯cm from the isocenter than to 35â¯cm from the treatment room wall.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 135, May 2018, Pages 184-191
Journal: Applied Radiation and Isotopes - Volume 135, May 2018, Pages 184-191
نویسندگان
W.M. Abou-Taleb, M.H. Hassan, E.A. El_Mallah, S.M. Kotb,