Alpha β surface contamination detector

Alpha β surface contamination detectorIt is a portable radioactive measuring instrument mainly used for measuring radiation from radioactive surface alpha and beta contamination.

Built in plastic scintillator detector, using high-speed, low-power microprocessor as data processing unit, and large screen, backlit graphic dot matrix LCD as display interface.

It can set measurement time, alarm threshold, nuclide efficiency and other parameters, and also has functions such as over threshold alarm, under voltage alarm, counting fault alarm, and high voltage fault alarm.

Alpha β surface contamination detectorPerformance parameters:

Radiation type: alpha, beta

Detector: Plastic scintillator

Can distinguish between alpha and beta nuclides

Measurement units: μ Gy/h, μ Sv/h, CPS, CPM, Bq/cm2

Energy range: 25KeV-3MeV

Sensitive area: 16cm2, diameter 4.5cm

Sensitivity: β:>500cps (1kBq, 90Sr-90Y);

γ: >650cpm (1mSv/h, relative to 137Cs)

Measurement range: α, β: 0.00CPS-105CPS; α、β：0.00Bq/cm2-106Bq/cm2

Background: α<1cps, β<10cps

Detection efficiency: 90Sr-90Y, ≥ 60%, 239Pu, ≥ 20% (measured on the protective grille)

Inherent error: less than ± 10% (relative to 137Cs)

Temperature and humidity characteristics: -10 ℃ -+50 ℃, RH95% (35 ℃)

Power supply mode: 4 AA type 1.5V batteries with sound and light alarm, and continuously adjustable alarm threshold,

Power consumption:<90mW, continuous working time>100h

Fault intelligent display; Graphic dot matrix LCD display with backlight

The timing is continuously adjustable; Battery undervoltage display; Can be set to measure nuclides

Adopting a flat dual scintillation detector with high sensitivity; Measurable alpha and beta