Radiations

Background Radiation Stationary Monitoring Map
Live monitoring Carlsbourg

-Natural background radiation from the Earth is recorded using a detector connected to a server. This server is connected to the internet and regularly transmits the external radiation measurement to a web server that hosts this website.

- The Carlsbourg data station uses the International System of Units (SI) unit of radiation, the µSv (microsievert), and the µSv/hour (µSv/h) for the dose rate. (Cs137 / Co60)

- Real-time monitoring is provided by the UradMonitor Model A probe.

- The Geiger counter works by detecting and recording the ionization produced by a radioactive particle. The number of ionizations recorded over a given period indicates the amount of radiation present. This measurement is usually taken at one-minute intervals, which gives the number of "counts per minute" (CPM). The higher the CPM, the greater the radiation levels.

uRAD – Scientific Dashboard

An average dose rate of 0.13 µSv / h corresponds to an average level of exposure to natural radioactivity of 1.14 mSv / year. (1 mSv = 1 000 µSv = 1 000 000 nSv). This corresponds to the natural radioactive background radiation for the Carlsbourg station.

Monitorings

The data for the various radiation graphs are obtained using two Geiger counters connected to a server: the GM45 from Black Cat Systems and the GMC-600 + from GQ Electronics.
Air quality measurement data is obtained using the SMOGGIE-PM from uRADMonitor.
Calibrations
The GM45 probe was recalibrated in July 2022 according to Gamma-Scout. It is tested at a state-approved institute. Each unit is supplied with a certificate stating its serial number. Radiation Monitoring was commissioned on November 1, 2011.

SMOGGIE-PM features a high-quality laser particle sensor for PM1, PM2.5, and PM10 and an additional sensor for temperature and humidity. The accuracy of this monitor's data is laboratory tested.