ECOTEST MKS-UM Operating Manual page 100

3.2 Verification of the dosimeter
3.2.1 MKS-UM dosimeter-radiometer shall be verified during operation and
after repair.
3.2.2 The verification interval - no more than 12 months.
3.2.3 The verification operations are listed in Table 3.1.
Table 3.1 - Verification operations
External examination of the dosimeter
Checking the dosimeter's performance in all modes
Controlling the limit of the main relative permissible error while
measuring photon-ionizing radiation DER
Controlling the limit of the main relative permissible error while
measuring photon-ionizing radiation DE
Controlling the limit of the main relative permissible error while
measuring the surface beta-particles flux density and the surface
activity of beta-emitting radionuclides
Controlling the limit of the main relative permissible error while
measuring the surface alpha-particles flux density and the surface
activity of alpha-emitting radionuclides
3.2.4 Verification facilities are provided in Table 3.2.
Table 3.2 - Verification facilities
Name
УПГД-3В
standard
equipment
Reference source
of beta radiation
of CO type
Reference source
of alpha radiation
of П9 type
Operation
Regulatory document or main technical specifications
DER range - from 0.4 μSv/h to 1 Sv/h.
Eergy range - from 59 keV to 1.25 MeV.
Main relative permissible error limit of DER and DE - 8% with
a confidence probability of 0.95
Beta-particle flux
×min
2
10,000 part./cm
Alpha-particles
×min
2
10,000 part./cm
density range
flux density
98
Verification
technique No.
3.2.10
3.2.11
3.2.12
from 1000
range from 1000
3.2.7
3.2.8
3.2.9
to
to