A portable contamination monitor with thin plastic scintillation detector for highly sensitive measurement of α-, β- and γ- contamination.
- The innovative detector technology with thin-layer plastic scintillator provides key benefits over gas-filled or gas flow proportional detectors. These include reduced operating expenses, i.e. consumable gas and high repair costs in the case of Xenon detectors.
- α-, β- and γ-radiation can be measured using one detector. The measuring system automatically detects the presence of α-radiation. Simultaneous, selective measurement of α- and β-/γ-contaminations is possible.
- User-friendly, menu-driven configuration.
- Important measurement parameters are protected by pass code number.
- Calibrated reference nuclide file with integrated auto calibration.
- Lightweight.
- Integrated storage of measurement data, software for readout and processing of measurement data.
- Connection option for different external detectors, e.g. for dose rate measurement.
- Automatic detector identification.
- Fixed location operation with wall mount including of inductive charging, controlling of measurement time and switching between background measurement and contamination measurement.
| Code | Description |
|---|---|
| 12BT-COMO170 | CoMo 170 Contamination Monitor |
| 12BT-COMO170AWM | Active Wall Mount |
| 12BT-COMO170FT | Floor Trolley |
Subject to technical change without notice.
| Detector Type | Thin-layer plastic scintillation detector with ZnS coating |
| Detector Size | 170 cm² |
| Background | α: approx. 0.1 cps α/β: approx. 15 – 25 cps |
| Background Subtraction | With adjustable background measurement time |
| Measurement Electronics | μ-controller supported electronics |
| Keyboard | Foil keyboard, 5 function keys |
| Alarm | Separately adjustable for each nuclide, acoustic alarm |
| Result Display | Either in cps or nuclide-specific in Bq or Bq/cm² |
| Nuclides | 25 nuclides, preset calibration factors, user-specific nuclides may be added integrated auto calibration |
| Measurement Time | Continuous, for stationary operation adjustable in seconds |
| Display | Large-area, graphical LC display 128 x 64 pixels, with illumination, duration of illumination adjustable |
| Power Supply | 2 batteries, AA Mignon or corresponding rechargeable batteries, (NiCd, NiMH), can be charged via charge unit, in stationary mode via wall station with inductive charge conservation |
| Temperature Range | –10°C to 40°C, no condensation special version up to –20°C |
| Dimensions | 280 x 125 x 135 mm (L (with handle) x W x H) |
| Weight | ca. 750 g (including batteries) |
| Housing | Ergonomically shaped plastic housing |
| Interfaces | Serial interface RS-232 Boost charge/line operated external detectors |
Efficiencies for various radionulcides. Average values from measurements with 100 cm2 compound
| C-14 | approx. 14 % |
| F-18 | approx. 18 % |
| P-32 | approx. 25 % |
| S-35 | approx. 12 % |
| CI-36 | approx. 42 % |
| K-40 | approx. 30 % |
| Co-57 | approx. 7 % |
| Co-60 | approx. 27 % |
| Sr-89 | approx. 27 % |
| Sr-90/Y-90 (related to Sr-90) | approx. 42 % |
| Tc-99m | approx. 3 % |
| In-111 | approx. 8 % |
| I-123 | approx. 7 % |
| I-125 | approx. 12 % |
| I-131 | approx. 21 % |
| Cs-137 | approx. 35 % |
| Au-198 | approx. 23 % |
| Ti-204 | approx. 43 % |
| Am-241 α | approx. 22 % |
| P-238 α | approx. 12 % |
| U-238 α | approx. 26 % |
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