The BY211F type alpha and beta surface contamination measuring instrument is mainly used for measuring alpha and beta radioactive contamination on surfaces such as environmental radiation, nuclear power plants, isotope production, hospitals, reactor sites, clothing, workbenches, and floors.

technical indicators

Detector: 100 × 200mm2 plastic scintillator (ZnS)

Detection window: 90 × 180mm2, duty cycle ≥ 81%

Measurement time: 10, 30, 60, 120, 300, 600 seconds are optional.

Number of measurement groups: M (inspection), 6, 10, 20, and 100 groups can be selected.

Counting capacity: 1 to 109

Display units: total count, cps or Bq/cm2.

Alarm function: Set alarm thresholds for α and β respectively.

Detection efficiency: E α ≥ 20% background ≤ 1cps; E β ≥ 30% background ≤ 20cps.

Relative error: ≤ ± 20% under normal usage conditions.

Stability: Continuous operation for 8 hours<10%.

Working environment: ambient temperature -10 ℃ to+50 ℃; Relative humidity ≤ 95% (40 ± 2 ℃).

Weight: less than 1.5 Kg.

Main Features

Small size, light weight, easy to clean, able to adapt to on-site and laboratory environmental conditions

Large area plastic scintillator detector, the instrument can automatically distinguish alpha and beta particles, achieving simultaneous measurement of alpha and beta.

Adopting a 3.2 "color screen display, while displaying real-time measurement results such as alpha, beta, and total count.

The instrument has inspection measurement and timed group measurement modes.

The instrument can set whether to deduct background counting function according to user needs.

The instrument is equipped with a universal USB interface, which makes data communication very convenient and enables data communication between the PC and the instrument.

The instrument is designed with a functional menu to facilitate user parameter settings.

2G large capacity data automatic storage Flash, capable of saving measurement data for at least 3 months.

Using rechargeable lithium batteries, it may be used continuously for more than 12 hours.

Compliant with international and national standards.