It can collect water samples, biological samples, environmental samples and other samples α、 total β、 Activity measurement of Cs-137 and Pb-210. It is widely used in disease control and Prevention Center, water supply company, product quality supervision and inspection unit, environmental monitoring station, advanced laboratory and other units.

Canberra lb4200 is an advanced α/β The counting system is designed to simplify the experimental operation and is suitable for long-time counting of large batch samples. One to four sample drawers are optional, and each sample drawer is configured with up to four 3.2cm or 5.7cm detectors.

Less gas consumption and more excellent MDA value

With gas electronic monitoring system, it can automatically adjust the optimal gas pressure for the detector

Independent start / stop function of the detector provides maximum flexibility

Small footprint, easy to upgrade modular design

Automatic calibration: stable level, efficiency, self absorption and background

The detector can be used without removing the lead shield

The 7 cm diameter detector has the lowest background value in the industry

Each detector has an independent window to facilitate field replacement

Background:

Total count: guaranteed value: ≤ 0.8cpm

Typical value: ＜ 0.7cpm

   α Count: guaranteed value: ≤ 0.05cpm

Typical value: ＜ 0.03cpm

   β Count: guaranteed value: ≤ 0.75cpm

Typical value: ＜ 0.67cpm

Efficiency: α （210Po）：≥40%

β （90Sr-90Y）：≥45%

String ratio: α reach β：＜ 1%

Detector stability level:

α （210Po）≤2.5%/100V：≥800V；

β （90Sr-90Y）≤2.5%/100V：≥200V