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A new radiation shielding block material for radiation therapy
Author(s) -
Tajiri Minoru,
Sunaoka Masayoshi,
Fukumura Akifumi,
Endo Masahiro
Publication year - 2004
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.1809767
Subject(s) - electromagnetic shielding , attenuation , attenuation coefficient , materials science , radiation shielding , lead (geology) , mass attenuation coefficient , tungsten , radiation , radiation protection , dosimetry , nuclear engineering , optics , composite material , nuclear medicine , metallurgy , medicine , physics , engineering , geomorphology , geology
In recent years, lead has been recognized as a source of environmental pollution; this includes lead use for radiation shielding in radiotherapy. We looked for a new material that could be a lead substitute. We chose a material composed of tungsten and resin. We compared the attenuation coefficient of the material with those of lead and Lipowitz's metal, and found the material has a higher attenuation coefficient than the other two. The material may be used as a substitute for lead because it is easy to fabricate and friendly to the environment.