WCM1000 Whole-Body γ Contamination Monitor
WCM1000 Whole Body γ Contamination Monitor is designed to be installed at the exit of radioactive controlled area of nuclear power plants or associated nuclear facilities. It is used to monitor work clothes and whole body surface for gamma radioactive contamination when workers are leaving the area, so as to detect the contamination and prevent contamination diversion in time through data analysis.
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- Measurement type: γ-ray
- Detector: large size plastic scintillator detector
- Detector area: Head (1 piece): 400 mm × 350 mm × 50 mm, Feet (1 piece): 400 mm × 350 mm × 50 mm, Torso (8 pieces): 500 mm × 450 mm × 50 mm
- Detection efficiency (activity response): Head end detector: Liftable (measure close to the face at the geometric center of the detector): 137Cs：≥10%，60Co：≥20%；Fixed (measure at a distance of 20 cm from the geometric center of the detector): 137Cs：≥3%，60Co：≥8%；Torso detector (measure at a distance of 20cm from the geometric center of the detector): 137Cs：≥3%，60Co：≥8%；Foot detector (measure close to the feet at the geometric center of the detector): 137Cs：≥10%，60Co：≥20%。
- Lower limits of detection: ≤500Bq (60Co, environmental background 0.2μGy/h, 10s for measurement time, 95% confidence degree)
- Energy range: 50 keV~6 MeV
- Accuracy: ≥40 cps/kBq (60Co, 30cm from each detector center)
- Overall dimensions: 2400 mm ×1100 mm×1020 mm (H×W×D)
- Measuring chamber dimensions: 2030 mm ×600 mm × 900 mm (H×W×D)
- Weight: 745 kg
- Power supply: AC 220 V ± 10%, 50 Hz ± 10%
- Power: ≤320 W
- Optional UPS power supply, able to continue working for 3 hours after external power cut
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