AT1320M Gamma Activity Monitor


Measurement of gross activity of 51Cr, 99mTc, 111In, 123I, 125I, 131I and 201Tl gamma-emitting radionuclides in liquid radioactive wastes.


  • Smart spectrometric detection unit
  • Measurement geometry – Marinelli beaker, 1.0 l
  • Radiological data can be processed on a PC or  directly on a processing unit


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AT1320M Gamma Activity Monitor
Scintillation detector NaI(Tl) Ø63×63 mm
Energy range 20 – 500 keV
Measurement range of volume activity 5 – 2·106 Bq/l (125I)
3 – 2·105 Bq/l (201Tl, 99mTc, 111In, 123I, 131I)
20 – 2·106 Bq/l (51Cr)
Limits of tolerable intrinsic relative error
Density of controlled samples 1 g/cm3
Overall dimensions, weight 106x220x35 mm, 0.5 kg (Processing unit)
Ø98×350 mm, 2.0 kg (Detection unit)
Ø600×700 mm, 125 kg (Protection unit)
Control and indication Processing unit or External PC (option)

Design and specifications are subject to change without notice.
For details please refer to the datasheet.


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