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α, β weak radioactivity measuring device according to the number of different main detector can be divided into single, double, four, six, eight, users can choose according to their own needs. The control systems of each main detector are independent of each other. You can set parameters, start and stop devices, and select measurement modes for a single detector. The measuring instrument has the characteristics of high sensitivity, low background, high degree of integration, easy operation, stable and reliable performance. It can measure the total α and total β activity of water samples, biological samples and environmental samples. It is widely used in centers for Disease Control and Prevention, water companies, product quality supervision and inspection units, environmental monitoring stations, higher laboratories and other units.





The characteristics of



All the indicators of the instrument have reached the national level Ⅱ standard, and some indicators have reached the national level Ⅰ standard.



Waveform recognition technology, greatly improve the detection efficiency of the instrument.



Independent detector circuit design, can be measured at the same time can be used alone.



The detector adopts α, β double scintillation, high sensitivity, low background, stable and reliable.



Cabinet design, with universal wheel support, save space, easy to move, fixed.



Industrial-grade tablet computer panel comes with USB interface to facilitate data export, and pin printer supports real-time data printing and output.



Chinese software interface, quick real-time display of detection indicators, easy to operate, practical.



Technical specifications



β background: 90Sr-90Yβ source 2π detection efficiency ≥ 56%, corresponding β background ≤0.1cm-2min-1.



α background: When the 2π efficiency ratio of 239Puα source is ≥ 91%, the corresponding α background is less than 0.0015cm-2min-1.



α / β crossover performance: the counting ratio of α into β channel was less than 1.5% (for 239Pu); The count ratio of β into the α channel is < 0.1% (for 90Sr-90Y).



Efficiency stability: The instrument is continuously energized for 24 hours, the detection efficiency changes α < 3%, β < 6%.



Background stability: when the background count varies within the range of (Nb±3σ) over a 24-hour measurement period,



Where Nb is the mean value of the background count and σ is the standard error of the background count.



Environmental requirements: Ambient temperature: (5℃ ~ 35)℃



Relative humidity: < 85% (+30℃).



Power source: AC 220V (±10%), 50Hz.



Weight: about 400kg. http://www.sdlysn.cn