The LSA2000 fully automatic low background liquid scintillation spectrometer is a newly developed universal low background radioactive activity measurement device by the new diffuse sensing after the successful launch of the ultra-low background liquid scintillation spectrometer product. It is mainly used for measuring low-level levels of 3H and 14C and monitoring radioactive effluent from nuclear power plants.

Functional Features

1. Adopting 3+3 type coincidence and anti coincidence detection technology and TDCR quenching correction technology

2. Adopting dual channel analysis technology to provide a unique measurement and analysis program for alpha and beta in water

3. The Cherenkov technique can be used to directly measure the activity of high-energy beta nuclides

4. Absolute measurement technology combined with efficiency tracing technology for dual label separation

5. Relative measurement and absolute measurement coexist, and there is no need for standard source calibration

6. Provide optional functions for logarithmic and linear spectra

7. Fully automatic sample change, multi task continuous measurement, maximum capacity of 260 standard 20ml sample bottles

8. Powerful data processing capabilities that can automatically or manually calculate peak area, counting rate, and detection efficiency

9.70 nuclide databases, pre-set with rich experimental application plans, can be expanded according to customer requirements

10. Program controlled unmanned measurement, multiple work tasks can be set each time

technical specifications

Analysis mode: Spectral mode

Measurement modes: continuous, repetitive, timed, and precise

Sample quantity: 260 pieces

Injection method: automatic conveyor belt

Sample container: 20ml standard bottle

Multi channel analyzer: 2 2048 channels

Temperature control device: Built in system

Energy range: α: 3-10MeV; β：0 ～ 5MeV

Background: The background is less than 2.0 CPM (20ml with 40% water content, 3H efficiency greater than 25%); Background less than 2.5 CPM (20ml 14C sample, 14C efficiency greater than 70%);

3H(0 ～ 18.6keV) ＜ 20cpm； 14C(0 ～ 156keV) ＜ 25cpm

Detection efficiency: 3H: ≥ 65%, 14C: ≥ 95%

Detection limit: 1.5Bq/L (obtained by measuring 12ml scintillation solution and 8ml tritium water sample for 1000min)

24-hour instability: count change less than 0.2%/24h

Energy resolution: 0.01 keV/ch (3H)

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

Power: 500W

Communication methods: USB, RJ45

Display mode: 23 'all-in-one computer display

Overall dimensions: 1245H × 900W × 1145D (mm)

Weight: Approximately 600kg

Working temperature: 5 ℃~35 ℃

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