Table of Contents
Advertisement
Table 1.1 (continued)
Name
Main relative permissible error limit of
measurement of the effective specific
activity of naturally occurring
226
radionuclides
Ra,
objects of the environment in
geometries "2", "4", Р=0.95
Measurement range of gamma radiation
ambient dose equivalent rate from
137
134
Cs,
Cs
Main relative permissible error limits
of measurement of gamma radiation
ambient dose equivalent rate from
Cs, given Р=0.95
137
134
Cs,
Unstable readings of the radiometer
during 8 hours of operation, not more
than
Measurement range of gamma radiation
ambient dose equivalent rate
Main relative permissible error limit of
measurement of ambient dose
equivalent rate (DER) of gamma
radiation, given P=0.95
Sensitivity to gamma radiation for
137
134
Cs,
Cs, not less than
Energy range of registered gamma
radiation
Energy dependence of readings for
energies 59 keV (
Со) and 0.66 MeV (
60
1.3 MeV (
232
40
Th,
K in the
H
*
(
10
Аm),
241
137
Unit of
measurement
%
μSv/h
%
%
μSv/h
)
%
(pulse/s) /(μSv/h)
-
%
Cs)
9
Standardized
value
35
0.001 - 10
20
5
0.01 – 50.00
15+1/
,
H
*
(
10
)
– is
H
where
*
(
10
)
a numeric value
of gamma
radiation DER,
μSv/h
500
50 keV –
3.0 MeV
30
Advertisement
Table of Contents
