ZF-100LB Series Low Background Measuring Instrument
Low Background Alpha-Beta Sample Counter
ZF-100LB series low background measuring instrument can be used to measure the activity of alpha beta in nuclear power plants, nuclear plants and environmental protection. The instrument has the characteristics of low background, high efficiency and stable operation. It is used in conjunction with reader of ZF-100LB series low background measuring instrument. The computer management software can realize the functions of automatic measurement and data storage. The ZF-100LB series includes two types: single-channel low background measuring instrument and four-channel low background measuring instrument.
Performance characteristics
1. Import detector with double plastic scintillators.
2. Integrated lead chamber design and anti-coincidence detector design can effectively reduce cosmic rays and environmental background.
3. The instrument consists of three parts: detection lead chamber, reader and computer. It has an independent working mode of reader.
4. The instrument has standby function and can realize automatic AC/DC conversion.
5. The results of the probe data processing unit are transmitted to the reader through RS-485 interface, which has strong anti-interference.
6. The instrument has the function of automatically adjusting high voltage and threshold.
7. The computer software has the functions of automatic measurement, automatic flat curve measurement and calibration, and the stored data can be queried.
technical specifications
1 Type of radiation to be measured: alpha beta radiation
2 Detector: ZnS, Plastic Scintillator
3 display units: total count, CPS
4 background: alpha background < 0.005 min-1 cm-2
Beta background < 0.15 min-1 cm-2
5 efficiency: alpha detection efficiency: > 80% (239Pu 2pi)
Beta detection efficiency: > 50% (90Sr-90Y 2pi)
6. Efficiency stability: the change of alpha detection efficiency is less than 10%.
The change of beta detection efficiency is less than 3%.
7. Background stability: the change of background counting rate is less than that of Nb± 3_
8 alpha/beta crossover performance: the counting ratio of alpha to beta channel is less than 3% (239 Pu)
The counting ratio of beta entering alpha channel is less than 1% (for 90Sr-90Y)
9 Temperature: 0 - 50 & deg;
10 Relative humidity: RH 90%
11 power supply: AC 220 V, 50 Hz
12 power: 36 W
13 Weight: 1000 kg
Size: 1000 (long)'655 (wide)'518 (high) mm
