Monitoring of radiation levels in medical cyclotron facility measured by a comprehensive computerized monitoring system

Abstract

790-793The medical cyclotron facility at Institute of Nuclear Medicine and Allied Sciences, Delhi, has an unshielded bunker type medical cyclotron (16.5 MeV) for the production of positron emitting radionuclides namely 18F, 15O, 13N and 11C. The pharmaceuticals labeled with these radioisotopes are used for positron emission tomography (PET) imaging. The medical cyclotron facility has an associated radiochemistry facility that contains chemistry modules housed in adequately shielded hot cells meant for the synthesis of the pharmaceuticals labeled with these positron emitters. The facility also has a beam extension room. The radiation levels were measured in the facility at different locations namely cyclotron vault, control console, radiochemistry laboratory, beam extension room and the stack using a comprehensive computerized monitoring system. The radiation levels were observed to be well within the prescribed limits