Radiation Shielding for Medical Compact Cyclotron

We are using a medical compact cyclotron for PET (positron emission tomography) and PIXE (particle induced X-ray emission) analysis in Nishina Memorial Cyclotron Center. The cyclotron vault is covered by concrete wall of 1.5 m thickness. However, a big penetrating window of 1.8 m square was needed a...

Full description

Saved in:
Bibliographic Details
Published inRADIOISOTOPES Vol. 42; no. 2; pp. 97 - 102
Main Authors HATAKEYAMA, Satoru, SERA, Kouichiro, HATANO, Kentaro, FUTATSUKAWA, Syoji, SAITO, Yoshihiro, SASAKI, Toshiaki
Format Journal Article
LanguageJapanese
Published Japan Radioisotope Association 1993
Subjects
boron loaded polyethylene
gamma-ray
iron shot
lead grain
medical compact cyclotron
neutron
radiation shielding
Online AccessGet full text
ISSN0033-8303
1884-4111
DOI10.3769/radioisotopes.42.97

Cover

More Information
Summary:We are using a medical compact cyclotron for PET (positron emission tomography) and PIXE (particle induced X-ray emission) analysis in Nishina Memorial Cyclotron Center. The cyclotron vault is covered by concrete wall of 1.5 m thickness. However, a big penetrating window of 1.8 m square was needed at the concrete wall between the cyclotron vault and the PIXE room for beam transport equipment. This window was closed by packing materials of iron shots, small grained polyethylenes mixed with boron and lead grains for shielding of neutrons and γ-rays. Several measurement data have showed that this method is useful for shielding of radiations from the compact cyclotron.
ISSN:0033-8303
1884-4111
DOI:10.3769/radioisotopes.42.97