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| Brand | Narda |
|---|---|
| Origin | Germany |
| Model | SRM-3006 |
| Frequency Range | 9 kHz – 6 GHz |
| Display Range | DANL to +20 dBm |
| Measurement Range | −30 dBm to +20 dBm (1 dB steps) |
| RF Input Attenuation | 0–50 dB (1 dB steps) |
| Level Uncertainty | ≤1.2 dB (15–30 °C) |
| Antenna Auto-Detection | Yes (type & calibration date) |
| Compliance Standards | HJ 1151–2020, IEC 62232, EN 50492, ICNIRP, GB 8702 |
| Brand | Hidex |
|---|---|
| Origin | Finland |
| Model | AMG |
| Detector | 3-inch diameter NaI(Tl) scintillation crystal |
| Energy Range | 15–2000 keV |
| Multichannel Analyzer (MCA) | 2048-channel linear |
| Energy Resolution | <30% FWHM at 27.5 keV (¹²⁵I), <30% FWHM at 39.6 keV (¹²⁹I), <9.5% FWHM at 662 keV (¹³⁷Cs) |
| Sample Capacity | 250 positions for 13 mm-diameter vials |
| Shielding | 55 mm lead equivalent overall |
| Dimensions (W×D×H) | 640 × 700 × 600 mm |
| Brand | SARAD |
|---|---|
| Origin | Germany |
| Model | RTM 1688-2 |
| Sampling Method | Active sampling |
| Measurement Range | 0–10 MBq/m³ |
| Detection Limit | Not specified (contextually implied as sub-10 Bq/m³ in slow mode) |
| Response Time | 95% in 12 min (fast mode) |
| Flow Rate | 0.30 L/min |
| Detector Type | Integrated semiconductor alpha spectrometer with electrostatic collection chamber |
| Sensitivity | 3 cpm/(Bq/m³) (fast mode) / 7 cpm/(Bq/m³) (slow mode) |
| Chamber Volume | ~250 mL |
| Humidity Independence | Yes, no desiccant required |
| Data Storage | 2047 measurement records |
| Compliance | Designed for ISO 11665 series, ICRP recommendations, and EPA/WHO radon assessment protocols |
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