brand-logo 24 HOURS
  • 30 DAYS
  • BELGIUM
  • EUROPE
    • Radiation
    • Flooding
  • ARCHIVES
  • METEO
    • Radar
    • Belgium
    • Carlsbourg
  • LINKS
    • Radiation Dose Chart
    • Radiation Low Dose Effects
    • Sievert (Wikipedia)
    • Fukushima (Wikipedia)
    • Rayonnements ionisants en Belgique
    • TeleRad
    • TV Lux
    • the-food-lab
    • Monitoring of radioactivity in Europe
    • Convertisseur
  • LANG
    • EN
    • FR

Background Radiation Data

Radioactivity Monitoring Online European Network (last 30 days)

Background Radiation Data

Radioactivity Monitoring Online European Network (last 30 days)

Background Radiation Data

Radioactivity Monitoring Online European Network (last 30 days)

Background Radiation Data

Belgium Live Radiation Monitoring Station (last 30 days)

LEARN MORE

Location: Carlsbourg - Belgium

The native terrestrial radioactive background radiation is recorded on a regular basis on a web server. This automatically takes over the data from the last 30 days. A graph is then edited as below ...

Gamma dose rate for the last 30 days

Understanding the "Last 30 Days" graph

 

  • On the ordinate: the scale gives the dose values for the last 30 days (µSv / hr)
  • On the x-axis: the scale indicates the space-time by 30 minutes of the last 30 days
  • "Average" indicates the average of the doses received during the last 30 days
  • "Min" is the minimum dose over the last 30 days
  • "Max" is the maximum dose over the last 30 days

Dose rates

 

The radioactive dose rate is the radioactive dose per unit of time. It is measured in Gy / s (grays per second) in the international system of units, but the commonly used units are Gy / h and formerly rad / h (rad per hour). The equivalent dose is measured in sieverts and in submultiples for the usual doses.

Dose rate measurement:

The equivalent dose rate is measured in sieverts per hour (Sv / h) or per second (Sv / s).

REM: mSv / h (milliSievert) -> Divided by 1000: µSv / h (microSievert) -> Divided by 1000: nSv / h (nanoSievert)

 

Doses

 

A dose delivered slowly (low dose rate) has less impact than the same dose delivered more quickly (high dose rate).

A dose rate of 2 µSv / h is considered tolerable: it is the dose rate received by populations living in regions with high natural radioactivity. It corresponds to an annual dose of 17.5 mSv per individual.

 

The integral of the dose rate received by an operator (the total effective dose) is measured by a dosimeter. This overall measurement does not take into account the dose rate, which can lead to very different health effects. (Wikipedia)

 

Measures

Monitoring

The data for this graph is obtained using a geiger counter connected to a PC. The counter is manufactured by Black Cat Systems, Model GM45.

Radiation Monitor commissioned 1 Nov 2011.

Calibration

The GM45 probe was recalibrated July 2022 according to the Gamma-Scout. This is tested in an authorized institute by the state. Each unit is supplied with a certificate stating its serial number.

Copyright 2011-2023 : www.jma0800.net - All Rights reserved - For educational and experimental processes only -

Contact: xray/at/jma0800.net  (for "at" write "@")

update: 11/03/23