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Centre for Applied Techniques Studies

CEDEX

MEASURING SYSTEM OF ENVIRONMENT RADIOACTIVITY (RADIOLOGICAL SURVEILLANCE)

General Description

The measurement of radioactive emissions at very low levels requires specific techniques for the preparation of samples, very sophisticated detectors with high stability electronic chains and reliable calculation techniques.

As a result of the use of nuclear energy, radiological surveillance became necessary. CEDEX started the programs in 1976, later, the entry of spain to the European Community and the subsequent participation in the EURATOM activities, made the setting up of surveillance networks obligatory.

At present, samples from seventy seven points of the national hydrographical network and coastal waters is being developed. Samples of drinking waters are also analyzed.

Technical Characteristics

ACTIVITY INDEX

  • Total α
  • Total ß
  • Residual ß
  • Tritium
  • Gamma spectrometry
  • Other physical and chemical parameters.

NETWORK DISTRIBUTION

  • Northern Spain: 4
  • Duero: 10
  • Tajo: 21
  • Guadiana: 5
  • Guadalquivir: 10
  • Ebro: 10
  • Júcar: 5
  • Segura: 5
  • Catalonian network: 7
Measuring system of enviroment radioactivity
 

DATA BASE:

  • 77 points in continental waters.
  • 1.350 samples analyzed annually.
  • 39 water supply points analyzed.
  • 2 x 106 stores inputs.
  • 9 coastal points.

Applications

Measuring system of enviroment radioactivity
 
  • Radiological surveillance programs in continental and coastal waters.
  • Monitoring of radioactivity in drinking water supplies.
  • Assessment of environmental impact of nuclear installations.
  • Measurement of radiological parameters.
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