The FJ1210 α β γ surface contamination measuring instrument is mainly used for measuring radioactive surface contamination, and can simultaneously measure α, β, and γ rays. The instrument is portable, easy to operate, and has excellent and reliable performance.

Technical Specifications

1. Detector: a GM end window counter tube

2. Sensitive area: 15 cm2

3. Radiation type: alpha, beta, or gamma

4. Measurement type: Total count cps

5. Measurement range: 0.1-105 cps, 0.1-104 Bq, 0.1-103 Bq/cm2

6. Lower limit of energy: 2.5 MeV for alpha radiation, 30 keV for beta radiation, 5 keV for gamma radiation

7. Efficiency (with protective grille, 2 π): 90Sr-90Y ≥ 35%, 14C ≥ 8%, 204Tl ≥ 15%, 239Pu ≥ 15%

8. Instrument working time>100 hours

9. Environmental characteristics: working temperature 0-45 ℃, humidity 90%

10. Weight: 1.5 kg

Performance Characteristics

1. CPS, Bq, Bq/cm2 optional

2. Sound and light alarm, continuously adjustable alarm threshold

3. Instrument over range alarm