RAD7 ELECTRONIC RADON DETECTOR
- Functions: Multichannel gamma spectrometer designed on aircraft (helicopters or fix-wings) to measure gamma spectrum for geological investigation and mineral exploration.
- Manufactured by: Pico envirotec – canada
- Year of production: We have divices manufactureed from 2010 to 2019
- Webiste: https://durridge.com
- SPECIFICATIONS
Principle of Operation:
Electrostatic collection of alpha-emitters with spectral analysis
Passivated Ion-implanted Planar Silicon detector
SNIFF mode counts polonium-218 decays
NORMAL mode counts both polonium 218 and polonium 214 decays
Built-In Air Pump: Nominal 1 liter/minute flow rate; Inlet and outlet Luer connectors
Connectivity: RS-232 port up to 19,200 baud rate; USB adaptor is included with every RAD7
Measurement Accuracy: +/-5% absolute accuracy, 0% – 100% RH
Nominal Sensitivity: SNIFF mode, 0.25 cpm/(pCi/L), 0.0067 cpm/(Bq/m3)
NORMAL mode, 0.5 cpm/(pCi/L), 0.013 cpm/(Bq/m3)
Radon Concentration Range : 0.1 – 20,000 pCi/L (4 – 750,000 Bq/m3)
Intrinsic Background: 0.005 pCi/L (0.2 Bq/m3) or less, for the life of the instrument
- Some projects used this equipment by Geophysical Division
– Editing the Vietnam radioactive map, scale 1: 1,000,000
– Detailed assessment of natural radioactive polluted areas in the Northwest of Vietnam to notify the People’s Committees of provinces to coordinate planning and implementing necessary measures to minimize the harm to humans.
– Building the maps of natural radioactive environment at the scale of 1 / 250,000 for the entire territory of Vietnam – Phase I (2011-2015): for a number of main areas.
– Building the maps of natural radioactive environment at the scale of 1 / 250,000 for the entire territory of Vietnam – Phase II (2018 – 2022) for northern border and coastal provinces.
Source: Geophysical Division./.
