Registered radiation type
PU2
Gamma radiation (¥ã)
BDKN-03
Neutron radiation (n)
Detector
Geiger-Muller counter tube
3He proportional counter in polyethylene moderator
Energy range
PU2 (¥ã)
60 keV ... 3 MeV
BDKN-03 (n)
0.025 eV ... 14 MeV
Measurement range of ambient radiation dose rate equivalent
1 ¥ìSv/h ... 10 mSv/h
0.1 ¥ìSv/h ... 10 mSv/h
Measurement range of ambient radiation dose equivalent
1 ¥ìSv ... 1 Sv
0.1 ¥ìSv ... 10 Sv
Energy dependence relative to 662 keV (137Cs) [PU2 (¥ã)]
-25%...+35%
(for energy range from 60 keV to 3 MeV)
Sensitivity to 137Cs gamma radiation [PU2]
1.0 cps/¥ìSv?h-1
Sensitivity to Pu-Be neutron radiation [BDKN-03]
0.355 cps/¥ìSv?h-1
Neutron flux density measurement range [BDKN-03]
0,1 ¡¦ 104 neutron¡¤s-1¡¤cm-2
Neutron fluence measurement range [BDKN-03]
1 ¡¦ 3¡¤106 neutron¡¤cm-2
1.5 cps/(neutron¡¤s-1¡¤cm-2)
Limit of intrinsic relative measurement error
¡¾20%
Continuous run time
¡Ã24 h
Working temperature range
-30¡Æ¬³ ... +50¡Æ¬³
Protection class
I¬²64
Power supply
Integrated rechargeable battery pack;
+12V external power supply unit;
220 V 50 Hz external power supply unit
Overall dimensions, weight
2008536 mm, 0.5 kg
314220263 mm, 7.8 kg
Relative sensitivity coefficients for standard neutron radiation sources with different energies for ambient dose equivalent rate measurement
n-radiation source
Thermal,
En=0.025 eV
0,225¡¾0,045
Ra-Be,
En=100 keV
0,81¡¾0,08
252Cf,
En=2.13 MeV
1,02¡¾0,10
Pu-Be,
En=4.16 MeV
1,0
Relative sensitivity coefficients for standard neutron radiation sources with different energies for flux density measurement
0,0064¡¾0,0013
0,182¡¾0,018
1,01¡¾0,10