Environmental Monitoring at Chalk River Nuclear Laboratories. Part L. Gamma Ray Spectrometric Analysis of the NRX and Process Effluents

摘要

Almost all of the neutron capture and fission product nuclides normally in the process outfall at the Chalk River Nuclear Laboratories (CRNL) can be measured quantitatively by gamma spectrometry. This method has been used routinely in place of radiochemistry since April 1972. Results show conclusively that most of the radioactivity being discharged to the Ottawa River is produced in the NRX reactor. It is also evident that failed reactor fuel is sometimes the main source of the fission product nuclides present in the reactor cooling water. (Atomindex citation 09:359553)