|
|
|
CONTACT US
|
 |
Shandong haiqiang environmental technology co., LTD.
24 hour business: 18553153357
Telephone: 0531-88816910
Fax: 0531-88809505
Email: sdhaiqiang@163.com
Website: unifitpv.cn
Address: no.19 huaneng road, lixia district, jinan city, shandong province |
|
|
|
|
|
Two channel low background αβ measuring instrument |
| Date：2022-10-24 10:20:35 Author
：admin
Hits：2056 |
LB-2 low background α/β measuring instrument is mainly used to accurately measure the specific activity of low level total α and total β of various substances. Used for environmental protection, for water, air, soil, buildings in the detection of radioactivity; Used for sanitation and epidemic prevention, for radioactivity detection in drinking water, food, vegetables, milk and milk products; Used for building materials inspection, granite, marble, sand, cinder block, slag block and other radioactive inspection; Used for monitoring emissions, atmosphere and environment from nuclear power and other nuclear facilities; Others can also be used for radiation protection, health physics, biomedical research, agriculture, archaeology, geology and so on.
Technical indicators
1. There are two independent low background αβ main detector, can measure two samples at the same time, respectively give two samples in the total α, total β activity concentration measurement, with high sensitivity, low background, simple structure, easy to operate, stable and reliable characteristics.
2. When the 2π detection efficiency ratio of β source (active zone Φ20mm) is ≥ 60%, the background count rate per unit area is ≤0.10cm-2min-1.
3. When the 2π efficiency ratio of α source (active region Φ30mm) is ≥ 85%,
Background counting rate per unit area ≤0.002cm-2min-1.
4. Channel ratio: α into β channel ≤1%, β into α channel ≤0.1%.
5. Efficiency stability: α < 2%, β < 3%.
6. Instrument sensitivity: α=5×10-4Bq; Beta = 1 x 10-3 bq.
7. Repeatability: the instrument is continuously energized for 24 hours, the efficiency change of each detector is < ±5%.
8. Insulation resistance ≥2MΩ, voltage insulation > 1500V.
9. Use the ambient temperature 5-40℃, relative humidity < 90%.
10. Power supply: AC 220V±10%, 50HZ, power consumption ≤20W.
Instrument configuration
1. One cabinet
2. One main machine of measuring instrument
3. 1 set of lead chamber
4. Two main probes
5 anti - coincidence probe 2
6. Two HND-Br scintillators
7. Anti-conforming plastic scintillator 1 piece
8. 1 bottle of 241Am reference material
9. 1 bottle of kcl reference material
10. 40 sample plates
11. 2 lead handle
12. 1 cross screwdriver
13. 4 high-voltage cables
14. 4 low-voltage cables
15. 4 signal cables
16. 1 communication line
17. 1 power cable
18. 1 USB flash drive
19. 1 copy of instruction manual
20. One copy of procedure operation manual
21. One copy of warranty
22. 1 copy of quality certificate
23. One computer
24. One LCD monitor
25. 1 printer
26. One legal measurement certificate
27. Responsible for technical support and training
The instrument has been strictly verified by the national metrology department http://unifitpv.cn
|
|
|
