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1.2 Technical Specifications
1.2.1 Key specifications are presented in Tables 1.1 – 1.3.
Table 1.1 – Key specifications of the control unit of the MKS-UM dosimeter-
radiometer (hereinafter the control unit)
Measurement range of photon-
ionizing radiation DER
Indication range of pulse count rate
from gamma radiation detector
Measurement range of photon-
ionizing radiation DE
Main relative permissible error limit
during DER measurement at
calibration with 0.95 confidence
probability
Main relative permissible error limit
during DE measurement at
calibration with 0.95 confidence
probability
Energy range of recorded photon-
ionizing radiation
Energy dependence during photon-
ionizing radiation DER and DE
measurement in the energy range
from 0.05 MeV to 1.25 MeV, relative
to 0.662 MeV energy, not more than
Anisotropy in the solid angle of
60
0
relative to the basic direction
of measurement, marked by "+"
symbol, not more than:
137
- for
Cs and
241
- for
Am radionuclide
Measurement range of DE
accumulation time
Name
137
Cs
137
Cs
60
Co radionuclides;
Standardized value
Measurement
unit
μSv/h
cps
mSv
%
numerically equal to
%
MeV
%
%
4
according to the
specification
– 10
-1
6
10
0 – 9999
0.001 to 9 999
15+2/
,
H 10
(
)
–
where
H 10
(
)
is a dimensionless
quantity,
DER value
measured in μSv/h
15
0.05 – 3.00
± 30
25
60
1 min – 9999 hrs
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