Mobile monitor with a shielded scintillation detector for measuring radionuclides in the thyroid gland or lungs.
The monitor is a whole body counting system for identifying radionuclides in the human body and organs, in particular the thyroid gland or lungs. It is used for internal exposure control of personnel at nuclear fuel cycle facilities and in medical facilities. The complete set includes the detection unit, digital spectrometric device, lead with collimator set, stand, chair with lead shielding and analytical software.
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| Detector type | NaI, Ø 63 × 63 mm (other materials and sizes available) |
|---|---|
| Energy range | 0.05 MeV to 3.0 MeV |
| Activity measurement range, 5 min | 85 Bq to 10⁵ Bq I-131; 110 Bq to 10⁵ Bq I-133 |
| Minimum measured activity, thyroid 30 min | 30 Bq I-131; 45 Bq I-133 |
| Typical resolution at 662 keV | < 7.5 % |
| Number of ADC channels | 512 to 4k |
| Measurement instability | ±1 % max |
| Working temperature range | +10 °C to +35 °C |
| Operation mode setup time | 10 min |
Source: Baltic Scientific Instruments, Thyroid/Lung monitor brochure (bsi.lv, retrieved November 2026). Full specifications are available in the documents.
