On Line Measurement of Organic Iodine During a Severe Nuclear Accident

摘要

A severe nuclear accident may induce a dramatic dissemination of radioactive species into the environment. In that respect, improving the nuclear safety remains an important challenge to improve the society acceptability towards this energy. A solution may consist on implementing robust and reliable measurement systems operating near the Containment Venting Systems (CVS). These devices should be able to provide real time monitoring of the emitted fission products (FPs) in the course of a hypothetical accidental sequence. In the present study, a peculiar attention was devoted to iodine species (namely CH_3I) measurement by complementary techniques (photoacoustic spectroscopy and gas chromatography). The most important results will be described here.