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A system has been developed for measuring in real-time the radioactivity of aerosol impacted directly on an ion-implanted silicon detector. The system has been tested using monodisperse Carnauba wax aerosol tagged with the alpha emitting decay products of 222Rn. Preliminary results show that the best spectral resolution is obtained when aerosol is impacted directly on a bare detector. When a protective mylar form is used on the detector, the resolution becomes similar to the one obtained with a filter system using nuclepore filters.

Additional information

Authors: RAES F, JRC Ispra (IT);VAN DINGENEN R, JRC Ispra (IT);BERNER A, University of Vienna, Institute for Experimental Physics, Vienna (AT)
Bibliographic Reference: Paper presented: 3rd International Aerosol Conference, Kyoto (JP), October 24-27, 1990
Availability: Available from (1) as Paper EN 35508 ORA
Record Number: 199011241 / Last updated on: 1994-12-01
Original language: en
Available languages: en