Description
The m-Iodine™ 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™ 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 m-Iodine™ 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.
Technical Specifications
| Radiological | |
|---|---|
| Measurement range:
- I-131 (for 24 hours)
- I-133 (for 24 hours) |
from 0.01 to 1x108 Bq/m3 from 0.1 to 1x108 Bq/m3 |
| Energy range: | from 50 keV to 3 MeV |
| Relative measurement error:
- I-131
- I-133 |
± 30% ± 30% |
| Minimum detectable activity concentration (MDAC), not more: |
1 Bq/m3 for 1 hour measurement, 60 LPM rate |
| Functional | |
| Airflow rate: | from 4 to 75 LPM |
| Measurment: | pressure, temperature, pressure drop according to filter dust loading |
| Data interfaces: | 2 isolated RS-485, 1 RS-232 |
| Discrete outputs: | 4 user programmable SPDT relays |
| Analog outputs: | 3 isolated analog outputs, 0/4..20 mA |
| Environmental | |
| Temperature range: | -20 °C to +50 °C |
| Humidity: | up to 95%, non-condensing |
| Pressure: | from 84 to 106.7 kPa |
| Physical | |
| Size: | 400x190x290 mm |
| Weight: | 46 kg |
| Ingress protection (excluding air sampling): | IP65 |