Dolphy Frottis

A compact contamination survey meter design for your safety

This device is designed for the measure or the screening for surface contamination for beta radiation. It is usable for alpha contamination if the type of contamination is known. It is ideal for smear-samples measurement in 300cm² indirect surface contamination control. The steel protective grid protect the detector from shocks and make it a suitable device for materials and tools control. The Dolphy Frottis ensures the control of the cleanliness of installations after decontamination.

Documentation

Technical characteristics

Detection characteristics

Reference value: Activity on smear-samples 300 cm² in area
Detector: Geiger Müller pancake sensible to beta from 15 keV and alpha from 4.5 MeV
Unit: Bq/cm²
Reference source: Cobalt 60
Sensitive surface: 15.5 cm²
Sensitivity to α et β: 4.5 c/s Bq/cm²
Display range: From 0 to 199.99 Bq/cm²
Response time: < 1 s for any significant variation between 0 and 23 Bq/cm²
Integration time: Automatic from 0.5 to 60 seconds.