Electrostatic radon monitor

Electrostatic Radon Monitor ERM flow rate 0.5 /min, electrode -3000 V applied, dehamidified, continuously measured, detector ZnS(Ag)... 

Electrostatic Radon Monitor (ERM). The Flow-Type Electrostatic Sampling Instrument (the electrostatic radon monitor) was first developed by Dalu and Dalu, 1971 (Dalu and Dalu, 1971). In the present study a modified version developed by Iida (1985) was used. 

The instruments include an ionization chamber, the charcoal-trap technique, a flow-type ionization chamber (pulse-counting technique), a two-filter method, an electrostatic collection method and a passive integrating radon monitor. All instruments except for the passive radon monitor have been calibrated independently. Measurements were performed... 

Passive Integrating Radon Monitor PRM electrostatic sampling -180 V applied, dehumidified, CN-film, exposed time two months a measurement... 

The effect of surface electrostatic charge on a material on the attachment of the decay products of radon has been known since pioneering work on atomic structure by Rutherford. Extensive research into this area for the radon and thoron progeny has been conducted in this laboratory for environmental monitoring purposes. Several authors have reported on the effect of electrostatic charge on the collecting characteristics of copper for the radon progeny for exploration purposes (Card and Bell, 1979). 

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