HFM100 Hand and Foot Surface Contamination Monitor

The HFM100 hand and foot surface contamination monitor (α/β type and β type) is mainly used in the radiation control passages of nuclear power plants or related nuclear facilities to monitor surface contamination on the hands and soles of the feet of workers coming from the controlled area. Data analysis allows for the timely detection of potential safety hazards, enabling prompt detection of contamination and prevention of its transfer. It is one of the means by which nuclear power plants or related nuclear facilities and other departments using radioactive isotopes ensure safe production, and can also be used in other departments using radioactive isotopes.

Features:

1. Six ZnS+ plastic scintillator detectors (or plastic scintillator/air-tight proportional counter), requiring no working gas source or warm-up time; ready to use immediately.

2. Optional clothing measurement probe.

3. One-step measurement, short measurement time, high efficiency; automated measurement and auxiliary calibration software, simple operation; voice prompts during measurement, and voice alarm for contamination.

4. Comprehensive recording of measurement data, alarm data, calibration data, and probe parameter information; provides report output and printing functions.

5. TCP/IP Ethernet interface, enabling network connectivity for remote transmission of measurement data, alarm information, control of instrument operation status, and parameter modification.

6. Optional calibration source and source rack.

Physical Properties:

1. Measurement Type: α/β or β-ray

2. Detection Efficiency: (2π, surface source, protective grid surface):

α (239Pu): Hand ≥ 40%, Foot ≥ 30% (α/β type)

β (90Sr-90Y): Hand ≥ 40%, Foot ≥ 30% (α/β type)

β (90Sr-90Y): Hand ≥ 40%, Foot ≥ 30% (β type)

3. Detection Limit (Measurement time 10 s, background 0.2 μGy/h, confidence level 95%):

α: 0.037 Bq/cm² (α/β type)

β: 0.37 Bq/cm²
Mechanical Properties:

1. Dimensions: 1350 mm × 840 mm × 600 mm (H×D×W)

2. Probe Size: Hand 200 mm × 120 mm (Length × Width)
Foot 350 mm × 150 mm (Length × Width)

3. Clothing Probe: 50mm × 2 (Optional)

4. Weight: 90 kg
Electrical Characteristics:

1. Power Supply: AC 220 V ±10%, 50Hz ±10%

2. Power: ≤ 70W

3. Backup Power Capacity: ≥ 2.5 hours

4. Communication Interface: TCP/IP Ethernet, optional management software, remote interconnection