REM-Ⅲ radon exhalation rate instrument
REM-Ⅲ type radon exhalation rate instrument meter is a portable surface radon exhalation rate measuring instrument, by the China institute of radiation protection research and development production, its modelling and structure has a typical superiority, can "real time" "fast" measuring radon exhalation medium surface level and can be used for underground engineering, mine, tourism cave, nuclear facilities, DAMS and place building materials, soil, the ground surface such as measuring radon exhalation rate, is a way to find the source of the radon and radon governance necessary device. Suitable for GB50325 the civil engineering indoor environment pollution control rules "(2006 edition) requirements of the soil surface radon exhalation rate mensuration, also can be in building construction or decoration stone material, cement, before coatings and other building materials for radioactive detection and recognition, guidance is made of high quality building materials. The instrument in 2004 has been granted the national patent for utility model, the patent number: ZL200420096051.0.
The radon exhalation rate instrument technology parameters:
L semiconductor detector, sensitivity: 1.1 by CPH/Bq/m3 (radon)
L detector by electrostatic effect before collecting 218 Po ion of aluminum film, used enchase the aluminum film structure, realizing fast measurement (high level environment), common environment do not need to change the aluminum film
L to 239 Pu α non-point source detection efficiency: 35% (2 π)
L count capacity of 99999999, measurement range: 5 x 10-5 ~ 102 Bq / (m2 · s)
L measuring time: way for 1 ~ 2 120 share according to its radon exhalation rate high and low set, 1 is the way continuous measurement, can save 200 history measured values
L has may change parameter Settings, automatic shows that instantly given the measurement results etc. Characteristics
L don't use external printers, measuring the output value of history can find out the key
L environment temperature:-5 ~ 40 ℃; Relative humidity: more than 90%
L power supplies: built-in 6 V battery, equipped with special charger
L size and weight: 290 * 290 * 280,6.5 Kg
