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| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic |
| Model | HD-2001 |
| Instrument Type | Gamma Spectrometer |
| Detector | Ø75 × 75 mm NaI(Tl) Scintillation Crystal |
| Total Channels | Selectable (512 / 1024 / 2048 / 4096), Default Operational Configuration: 2048 channels |
| Energy Resolution | <7.5% at 662 keV (¹³⁷Cs) |
| Differential Nonlinearity | <0.05% |
| Integral Nonlinearity | <0.1% |
| Max. Throughput | >333 kcps |
| Pulse Pile-up Rejection | 500 ns |
| Measurement Uncertainty | <10% (for sample activity >37 Bq/kg) |
| Radionuclide Quantification Ranges | ²³⁸U (37–1×10⁶ Bq/kg), ²²⁶Ra (37–1×10⁶ Bq/kg), ²³²Th (12–4×10⁵ Bq/kg), ⁴⁰K (0.1–100 wt%), Air Radon (4–100,000 Bq/m³), Soil Radon (300–200,000 Bq/m³) |
| Operating Environment | 5–40 °C, ≤90% RH, 220 V ±10%, 50 Hz |
| Lead Shielding Chamber | Ø580 × 850 mm, Wall Thickness: 100 mm, Mass: ~900 kg |
| Compliance | GB 6566–2010, GB 50325–2010, JJG 417–2019 (Calibration Verified by National Institute of Metrology, China) |
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