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IMD-2NM Dose Rate Meter

Measures:

- the power of the absorbed dose of gamma radiation in a tissue equivalent substance with radiation thickness of 1 g/cm2;

- contamination of surfaces with beta-nuclides (beta radiation flux density):

in the energy range from 0.08 to 3.0 MeV

in the energy range from 0.3 to 3.0 MeV


Measurement of radioactive emissions:

- in the measurement ranges of absorbed dose rate:

- with the BDZS-10S detection unit;

- without the BDZS-10S detection unit;

- in the range of measuring the beta radiation flux density with the BDZS-10S detection unit


from 10 mkrad/h to 999 rad/h

from 10 mrad/h to 999 rad/h

10...999·102 parts/cm2min



The meter is resistant to the background of gamma radiation from the 137Cs source when measuring the contamination of surfaces with beta-active substances, depending on the measurement ranges:

from 10 to 102 parts/cm2min: absorbed dose rate is no more than 0.1 mrad/h

from 102 to 103 parts/cm2min: absorbed dose rate is no more than 1.0 mrad/h

from 103 to 104 parts/cm2min: absorbed dose rate is no more than 10.0 mrad/h

from 104 to 105 parts/cm2·min: absorbed dose rate is no more than 100 mrad/h


Limits of permissible basic error:

- when measuring the absorbed dose rate of gamma radiation under normal climatic conditions from a second-class caesium-137 source relative to the measured value with a confidence probability of 0.95: the permissible basic error does not exceed ± 20% (at release) and ± 25% (during operation)

- when measuring the absorbed dose rate of gamma radiation from 10 to 100 mrad/h under normal climatic conditions using a second-class caesium-137 source with a measuring console UI-177S without using BDZS-10C relative to the measured value with a confidence probability of 0.95: the permissible basic error does not exceed ± 20% (at release) and ± 25% (during operation)

- when measuring the beta radiation flux density under normal climatic conditions from a second-digit strontium-90 + yttrium-90 source relative to the measured value with a confidence probability of 0.95: the permissible basic error does not exceed ± 20% (at release) and ± 25% (during operation)

The mass of the meter is no more
than 3.76 kg