AT2327 Alarm Dosimeter

Radiation control of:
– radiation-sensitive and radiation-dangerous sites and facilities
– environment
– restricted area beamline at linear accelerators (LINACs) and other pulsed-radiation facilities

  • Flexible and reliable multichannel stationary monitoring system
  • Independent measurements of gamma and neutron radiation dose rates and flux densities of neutron and beta particles
  • Integrated sound and light alarm
  • System health self-check function
  • Software for centralized radiation environment monitoring on a remote terminal
  • Automatic data logging
  • Backup power source
  • Open communication protocols for integration into external security systems

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Specification

AT2327 Alarm Dosimeter
Number of detection units in one alarm dosimeter 1 – 10
Number of alarm dosimeters in system configuration with PC connection Up to 32
Maximum distance between a detection unit and the control panel/PC 1000 m
Burn-up life ≥100 Sv
≥108 Sv (BDKG-27)
≥5·104 Sv (UDKG-37/2)
Detector    BDKG-02 / BDKG-17 Geiger-Mueller counter tube
BDKG-204 Scintillation plastic, Ø30×15 mm
BDKG-11 NaI(TI) scintillator, Ø63×63 mm
BDKG-27 Ion chamber
UDKG-37/2 Silicon semiconductor detector +Geiger-Muller counter tube
BDPB-01 Scintillation plastic, 30 cm2
BDKN-02 / BDKN-04 He-3 counter in polyethylene moderator
Measurement range of gamma radiation ambient dose equivalent rate    BDKG-02 0.1 µSv/h – 10 Sv/h
BDKG-204 0.05 µSv/h – 10 Sv/h
BDKG-11 0.03 – 100 µSv/h
BDKG-17 1 mSv/h – 100 Sv/h
BDKG-27 50 mSv/h – 4000 Sv/h
UDKG-37/2 1 µSv/h – 5000 Sv/h
Measurement range of gamma radiation average pulsed radiation dose rate    UDKG-37/2 80 µSv/s – 0.3 Sv/s
(pulse repetition rate is not less than 20 cps, duration not less than 1 μs)
Measurement range of neutron radiation ambient dose equivalent rate    BDKN-02 0.1 µSv/h – 10 mSv/h [From Pu-Be source]
BDKN-04 0.1 µSv/h – 10 mSv/h
Measurement range of beta particles flux density    BDPB-01 1 – 5·105 particle·min-1·cm-2
Measurement range of neutron flux density    BDKN-02 0.1 – 104 neutron·s-1·cm-2
BDKN-04 0.1 – 104 neutron·s-1·cm-2 [From Pu-Be source]
Energy range of gamma radiation    BDKG-02 60 keV – 3 MeV
BDKG-11 50 keV – 3 MeV
BDKG-17 60 keV – 3 MeV
BDKG-27 60 keV – 1.5 MeV
BDKG-204 20 keV – 10 MeV
UDKG-37/2 50 keV – 10 MeV
Energy range of beta radiation    BDPB-01 155 keV – 3.5 MeV
Energy range of neutron radiation    BDKN-02 / BDKN-04 0.025 eV – 14 MeV
Typical sensitivity to 137Cs gamma radiation    BDKG-02 4.0 cps/(µSv·h-1)
BDKG-204 70.0 cps/(µSv·h-1)
BDKG-11 1970 cps/(µSv·h-1)
BDKG-17 0.005 cps/(µSv·h-1)
BDKG-27 2.1 μC/Sv
UDKG-37/2 0.15 cps/(µSv·h-1), for dose rate ≤0.2 Sv/h;
58 mV/(Sv·h-1), for dose rate >0.2 Sv/h
Typical sensitivity to 90Sr+90Y beta radiation    BDPB-01 0.3 cps/(particle·min-1·cm-2)
Typical sensitivity to Pu-Be neutron radiation    BDKN-02 / BDKN-04 0.5 cps/(neutron·s-1·cm-2)
BDKN-02 / BDKN-04 0.355 cps/(µSv·h-1)
Energy dependence relative to 662 keV (137Cs)    BDKG-02 -20%…+35%
BDKG-11 ±20%
BDKG-17 -25%…+35%
BDKG-27 ±30%
UDKG-37/2 ±30%
BDKG-204 -45% to +35% (20 – 60 keV); ±25% (60 keV – 3 MeV);
±50% (3 – 10 MeV)
Protection class    BDKG-02 IP57
BDKG-11 IP65 (In sealed container)
BDKG-17 IP64
BDKG-27 IP65 (Processing unit); IP65 (Ion chamber)
BDKG-204 IP67
UDKG-37/2 IP68 (Detection unit); IP65 (Interface unit)
BDPB-01 IP64
BDKN-02 IP54
BDKN-04 IP54
Processing Unit IP55
Alarm Unit IP65
Data Display IP21

Design and specifications are subject to change without notice.
For details please refer to the datasheet.

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