We started a study on the radon in carbogaseous springs from the French Massif Central. We acquired a RAD8 from Durridge, but we also want to develop low-cost instruments to measure the radon in CO2 samples (and in ground) collected in the french Massif Central and other places in order to constrain the origin of Helium and CO2 in the carbogaseous springs.
Sandrine and Romain collecting gases and measuring the radon (Bard spring).
We now have five prototypes for the low-cost radon detectors. The first two utilize RadonEye detectors, while the two others employs the Radoff Sense sensor. The last one uses a RM-75 imported from China. Additionally, we have incorporated CO2 sensors (0-100% from Mikroe CO2 Click and Senseair S8-0053 sensor, 0-10 000ppm) to estimate the CO2/Rn ratio in the samples. These prototypes are calibrated against the RAD8 instrument.