What's new

august 2016


MI.AM will be as a sponsor in Prague at the 8th International Conference on protection against radon at home and at work al at 13th International Workshop GARRM (on the Geological Aspect of Radon Risk Mapping) The conference will be held at the Faculty of Nuclear Sciences and Physical Engineering (www.fjfi.cvut.cz) of the Czech Technical university (www.cvut.cz)
The address is FNSPE CTU, Brehová 7, 110 00, Prague 1.

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This is a stand-alone instrument where the radon level is read directly on a screen.

Canary gives you the possibility to read the average value for 1 day, for 7 days, and accumulative for the last year. Being battery powered, the monitor can easily be moved around the building, in order to get the full overview of the radon in the home, the workplace, the school or in the kindergarten. Compared to traditional technology, Canary makes it much easier to locate the radon entry in the buildings. If the radon level is above the national action level, you can easily read the effect of simple mitigation measures, before you may have to consider more comprehensive mitigation actions by professionals.

A Canary can be compared to a digital version of a traditional alpha track detector. The detection of radon is based on the principle that radon gas diffuses into a detection chamber. When the radon atoms decay they emit energetic alpha particles. The alpha particles are detected by a silicon photo diode. Every alpha particle generates a small signal current when it hits the photo diode. By the use of a low-power amplifier stage the signal current is converted into a larger voltage signal. The maximum amplitude of the voltage signal is detected and sampled by an analog to digital converter (ADC). The amplitude is proportional to the energy of the alpha particle that hit the photo diode. The brain of the monitor is a micro-controller that registers the time and energy of every detected particle.This information is used to calculate the mean radon gas concentration for daily, weekly and yearly periods.

Precision (at 100 Bq/m³): short term (7 days): 20% after 1 week, long term: 10% after 1 month

Accuracy: < 5% ± 5 Bq/m³

Power supply: 3 LR03 (AAA alkaline battery) - 3 years battery life-time

Dimensions: 120mm × 69mm × 22.5mm

Weight: 130 grams (incl. batteries)

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