[Absorption and scatter with an acrylic plate attached to the front of an X-ray beam limiting device].
We measured X-ray absorption and scatter with an acrylic plate attached to the front of the X-ray beam limiting device. The acrylic plate played the role of an added filter, absorbing the low energy element of the X-ray beam and decreasing the surface dose to 4.3% of the extreme height as a result. However, the surface dose outside the irradiation field increased to 35.3% of the extreme height, and the scatter dose increased to 47.8% of the extreme height. An acrylic plate with the minimum thickness necessary should be used to decrease unnecessary exposure outside the irradiation field.
Tachibana
Masayuki
M
Department of Radiological Technology, Kyushu University Hospital, Japan.
Izumi
Takashi
T
Yoshinaka
Masanori
M
D000042:Absorption; D000180:Acrylic Resins; D005374:Filtration; D019047:Phantoms, Imaging; D011829:Radiation Dosage; D011835:Radiation Protection / Q000295:instrumentation*; D011859:Radiography / Q000295:instrumentation*; D011874:Radiometry; D012542:Scattering, Radiation; D014965:X-Rays
D000180:Acrylic Resins