m-Iodine-101 Continuous Iodine Monitor

The Micasensor™ new model m-Iodine-101™ is designed for continuous measurement of volumetric activity of radioactive iodine isotopes (I-131 and I-133) in both molecular and organic forms contained in air of working areas, drawn from stacks and ventilation ducts. In addition, the m-Iodine-101™ evaluates concentration of interfering isotopes and accurately differentiates it from the main measurement channel of radioactive iodine. Background changes are also compensated in a wide range of energies, including high energy nuclides.

The mechanical design of the device is done to minimize the total weight and dimensions of the device. Given omni-directional 4 cm led shielding the weight of the detection block is less than 50 kg. The m-Iodine-101™ is the single cartridge standard unit with manual cartridge replacement. The spectrometry capability is based on a 1024 channel spectrum analysis, which allows radio iodine isotope localization. The monitor can be mounted on the horizontal surface, wall rack or wheel cart, which allows an easy transport, especially over the stairs and obstacles. As the required size and weight is very small, the Iodine Monitor can be deployed almost everywhere in the nuclear power plant.

The Micasensor’s m-Iodine-101™ monitor can be used for various applications in the field of air contamination monitoring as well as for work place measurements and effluent releases monitoring.

An analyzed sample is drawn to the monitor trough the standard G1/2" inlet (optional fittings can be used for the flexible pipes connection) and passes through charcoal cartridge. An industry standard or Micasensor™ proprietary iodine cartridge can be used. The iodine cartridge is monitored by the large volume scintillation detector shielded all around with the 4 cm. led to provide better measurements. The airflow is measured by built-in flow sensor. The m-Iodine-101 also measures pressure and temperature of the air.

When the cartridge media gets contaminated the monitor automatically sends warning to the data management and operation system. When threshold is exceeded, light and sound alarms go off.