A new radiation shielding block material for radiation therapy

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...

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Bibliographic Details
Published in:Medical physics (Lancaster) 2004-11, Vol.31 (11), p.3022-3023
Main Authors: Tajiri, Minoru, Sunaoka, Masayoshi, Fukumura, Akifumi, Endo, Masahiro
Format: Article
Language:English
Subjects:
Anatomy
ATTENUATION
attenuation coefficient
BEAM SHAPING
Biocompatible Materials - chemistry
Biocompatible Materials - radiation effects
Cadmium
Dose-Response Relationship, Radiation
Effects of ionizing radiation on biological systems
ENVIRONMENT
environmental pollution
Field size
Ionization chambers
Lead
lead substitute
Linear Energy Transfer
Manufactured Materials - analysis
Manufactured Materials - radiation effects
Materials fabrication
Materials Testing - methods
pollution
Radiation monitoring, control, and safety
RADIATION PROTECTION
Radiation Protection - instrumentation
Radiation Protection - methods
Radiation shielding
radiation therapy
RADIOLOGY AND NUCLEAR MEDICINE
RADIOTHERAPY
Radiotherapy - instrumentation
Radiotherapy - methods
Radiotherapy sources
RESINS
SHIELDING
shielding block
TUNGSTEN
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Description
Summary: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.
ISSN:0094-2405
2473-4209
DOI:10.1118/1.1809767