SCM50 α and β/γ Surface Contamination Monitor

The SCM50 Surface Contamination Monitor uses a ZnS-coated plastic scintillator probe, which is designed for simultaneous measurement of α, β and γ surface contamination. It can be used for surface contamination detection of work surfaces, floors, walls, clothing, skin, etc. in radioactive workplaces or laboratories.

It complies with the requirements of GB/T 5202-2008 standard and is widely used in units and departments such as environmental protection, public security, military, customs, health, nuclear industry, nuclear power plants, universities, and enterprises.

Features

New plastic scintillator detector, no need for inflation
Can measure α and β/γ at the same time, no external probe required
β/γ background monitoring and compensation, alarm threshold can be set continuously
LCD display with backlight
Can store 15,000 historical records, and data will not be lost after power failure.
Historical data can be exported.
It has three alarm modes: sound, light, and vibration, and independent alarm thresholds can be set for each, which can be enabled or disabled at will.

Technical Specifications

Model	SCM50
Detector type	solid-state photomultiplier + double flash detector
Detector area	50cm²
Capacity	1.5/2ml×24; 0.2/0.5ml×36; PCR8 tube×4; 5ml×12; 5ml×18;
Alarm mode	sound and light alarm
Unit	cps, Bq or Bq/cm²
Measuring range	0.01CPS～99.99kCPS,0.01Bq～99.99kBq,0.01Bq/cm，2～99.99k Bq/cm²
Background count	α: ≤ 0.1cps β/γ: ≤8cps
Detection efficiency	α: ≥35% (241Am), β: ≥25% (36Cl)
Relative error	no more than +-15%
Background subtraction	background subtraction and non-subtraction are optional, and background measurement time can be set
Display	large size LCD display with backlight
Power supply	built-in rechargeable lithium battery
Operating environment	Working temperature: -20℃～+50℃Working humidity: ≤95%RH (30℃, non-condensing)

SCM50 α and β/γ Surface Contamination Monitor