Abstract
Abstract The first clinical trial of neutron capture therapy (NCT) using the epithermal neutron beam at the medical irradiation facility of the Kyoto University Reactor was carried out for oral cancer in December 2001. A beam monitor system is required for accurate dose estimation in our present NCT. As the components of thermal, epithermal and fast neutrons and gamma rays must be separately measured, the multichamber method was adopted using a combination of four kinds of ionization chambers. Each chamber has a two-layer wall; the outer wall has a thickness of about 5 m, and the inner wall has a thickness of 10–100 λm. The response can be adjusted by regulating the chamber-gas components. A trial beam-monitor system was made using IC-17M type chambers of Far West Technology, Inc., and its characteristics were experimentally determined.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
