Open AccessComparison of beam hardening effect of physical and enhanced dynamic wedges at bladder inhomogeneity using EBT3 film dosimeter
Author(s) -
Ghazale Geraily,
Nooshin Sharafi,
Alireza Shirazi,
Mahbod Esfehani,
Maryam Masoudifar,
Blookat Eftekhar Rajab
Publication year - 2017
Publication title -
journal of cancer research and therapeutics/journal of cancer research and therapeutics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 39
eISSN - 0973-1482
pISSN - 1998-4138
DOI - 10.4103/0973-1482.206244
Subject(s) - materials science , imaging phantom , homogeneous , dosimeter , hardening (computing) , beam (structure) , biomedical engineering , optics , dosimetry , nuclear medicine , composite material , medicine , physics , layer (electronics) , thermodynamics
Using physical wedges (PWs) to modify dose distribution and more homogeneous target coverage is a well-established technique. However, there are many problems with PWs known as beam hardening, which made them problematic. This can be overcome by dynamic wedges which do not filter beam. Comparison of physical properties of physical and enhanced dynamic wedges (EDWs) restricted to homogeneous medium. Hence, the main aim of this study is to compare dosimetric properties of physical and EDWs at bladder inhomogeneous phantom as a most common case implementing wedges.