MPC calculation for the radionuclides produced during accelerator operation

In spite of their very short half lives and/or low radiation energies, quite a number of the radionuclides produced during the operation of the high energy accelerators are to be treated as "unknown" nuclides, since their maximum permissible concentration (MPC) values are not listed in the table of ICRP Publication 2. Legal control values for these radionuclides are too strict, and this imposes unnecessary and difficult problems in the field of the high energy accelerator facilities. For these reasons, MPC values for radionuclides produced during accelerator operations, which are not listed in ICRP Publication 2, have been calculated according to methods of this ICRP publication.