Brief introduction: WIN – 8A low background alpha beta measuring instrument used for detecting the life drinking water, environmental samples, such as various food samples in total alpha, beta activity concentration measurement. Measuring instrument has two independent main detector, respectively give samples of total alpha, beta activity concentration measurement. With high sensitivity, low background and characteristics of simple structure, convenient operation, stable and reliable. Can match any type of computer, measuring program localization, operation process have Chinese prompt, automatically measuring program and print the results. Technical parameters: Background: 1. The instrument The alpha particle counting rate of 0.003 cm or less per unit area - 2 min - 1; The beta particle counting rate per unit area of 0.1 cm or less - 2 min - 1; 2. The detection efficiency: Instrument for 239 pu alpha source (active area Φ 25 mm) of two PI detection efficiency more than 85% or higher; Instrument for 90 sr - 90 y beta source (20 mm) active area Φ 2 PI detection efficiency more than 58% or higher; 3. Repetitive: instrument electricity 24 hours continuously, each detector efficiency change of alpha < 2%, beta < 3%; 4. spillover factor: Alpha into beta word count than < 1% (239 pu), Beta into the alpha channel count than < 0.3% (about 90 sr - 90 y); 5. The insulation resistance of 2 m or more Ω; 6. Pressure insulation > 1500 v. 7. The sensitivity: alpha 5 x 10 to 5 or more bq; Beta 1 x 10-6 or higher bq 8. Measurement methods: Can simultaneously measure the alpha beta, also can separate alpha or beta measurement; Process and the measurement results can be displayed on the monitor, and can print the results; Measuring time, the probe's alpha and beta threshold low threshold (beta) L, high beta threshold (beta) H and high pressure can be adjusted according to the requirements by computer. 9. The working conditions Power supply voltage: ac 220 v + 10%; 50 hz. Ambient temperature: 5 ~ 40 ℃ plus or minus 2 ℃; Relative humidity: < 90% (+ 30 ℃).
Brief introduction: WIN – 8A low background alpha beta measuring instrument used for detecting the life drinking water, environmental samples, such as various food samples in total alpha, beta activity concentration measurement. Measuring instrument has two independent main detector, respectively give samples of total alpha, beta activity concentration measurement. With high sensitivity, low background and characteristics of simple structure, convenient operation, stable and reliable. Can match any type of computer, measuring program localization, operation process have Chinese prompt, automatically measuring program and print the results.
