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SEB 01-70 Beta spectrometer Печать E-mail
seb70_pravka

Beta-spectrometer SEB 01-70 is designed for measuring of beta-emission radio-nuclides in the samples of environmental objects, food samples, water, radioactive solutions, in aerosol filters, in standard beta-radiation samples.

 

 

ASSIGNMENT

Beta-spectrometer SEB 01-70 is designed for measuring of beta-emission radio-nuclides   in the samples of environmental objects, food samples, water, radioactive solutions, in aerosol filters, in standard beta-radiation samples.

Spectrometer is intended for using in radiology laboratories, in Nuclear Power Plants, in medical institutions, in Sanitary-Epidemiologic Stations, in veterinary laboratories, in geology and other fields.

 

SYSTEM COMPOSITION

  • intelligent scintillation detection unit;
  • passive low-background combined detector shield (lead +steel);
  • stabilized supply unit;
  • personal IBM-compatible computer with printer (option);
  • “AKWin” software;
  • UPS
  • measuring vessel set;
  • press for samples preparing.

 

PERFORMANCE

Energy range of registered beta-emission, MeV

1-3.5

Integral nonlinearity, %

<1

MDA by 2 hours exposure for a sample V=10 ml and ρ=1g/cm3 for CP 0.95 Bq/sample:

90Sr

0.2

137Cs

2

40K

0.4

MMC by 2 hours exposure for a sample V=10 ml and ρ=1g/cm3 for CP 0.95 Bq/kg:

90Sr

20.0

137Cs

50.0

40K

40.0

Background intensity in energy range 200 keV-1200 keV, pulse/sec

<0.4

Operating condition determination time, min

30

Continued operating time, hours

24

Power supply

220V, 50Hz

Power consumption

250 Wt

 
FEATURES

There is an essential increasing of measuring sensitivity due to use of radionuclides concentrating techniques.

There is a possibility of separate determination of 90Sr and 90Y, that allows making measurement of count samples immediately after the radiochemical extraction of 90Sr, without waiting 2 weeks for equilibrium condition.

Express-analysis of counting samples for not-exceeding of permissible levels.

 

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