The LLB series low background alpha and beta counters are precision instruments for measuring low-level radioactive intensity. Mainly used for measuring total alpha and total beta radioactivity in environmental samples such as water, soil, sediment, ore, animals, and plants.

Functional Features

1. Ultra low background, high efficiency, lossless counting

2. Split type new upper lead chamber, smaller volume, better shielding effect

3. Divided drawer design, can be changed separately

4. Equipped with independent detectors and parallel pneumatic systems, each circuit is completely independent and does not affect each other

5. Equipped with P-10 gas protection monitoring system, automatic detection and protection of gas breakage/leakage, achieving full monitoring of the gas path

6. Control software that integrates data acquisition and analysis, automatically processes, stores, and generates experimental reports for experimental data

technical specifications

1. Detector type: Flow gas proportional counter tube, P-10 gas, 4-channel, 8-channel, 12 channel multi-channel optional

2. Effective area of detector: 20.26cm2

3. Measurement mode: only alpha; alpha, beta simultaneously; First alpha, then beta

4. Maximum sample diameter: 2 inches

5. Background: α ≤ 0.1cpm; β ≤ 1cpm

6. Detection efficiency: α: 241Am ≥ 42%; β: 90Sr/90Y ≥ 55%

7. Repeatability: α ≤ 2.0%; β ≤ 3.0%

8. Power supply mode: AC 220V ± 10%, 50Hz ± 10%

9. Power: ＜ 200W

10. Communication methods: USB, RJ45

11. Display mode: 12 'color touch screen, operable on PC

12. Overall dimensions: 1130H × 880W × 548D (mm)

13. Weight: ＜ 1000kg

14. Working temperature: 5 ℃~35 ℃

15. Working humidity: 30% to 80% (25 ℃, no frost)

application area

nuclear safety

- Nuclear material inspection and monitoring

- Nuclear fuel production and reprocessing

- Nuclear power plant radioactivity measurement

- Nuclear emergency radioactive contamination monitoring

Inspection and analysis

- Measurement of radioactive activity in building materials

- Measurement of radioactive activity in food

Resource exploration

- Uranium mines, oil, and natural gas

Groundwater resources

- Nuclear Industry Geological Exploration System

Environmental and Health Assessment

Measurement of Radon Thorium Aerosols

- Food inspection

- Human health

Higher education institutions and hospitals

- Nuclear experimental base

- Nuclear Physics Laboratory

- Medical and Health

- Agricultural Science