Title: Aerosol Deposit Characterization by Radiation Technology
Citation: Journal of Aerosol Science
Publication Year: 1997
JRC N°: JRC13153
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC13153
Type: Articles in periodicals and books
Abstract: The STORM project investigates the deposition and resuspension of representative (SnO2, CsOH) aerosols in selected components (e.g. pipes, bends, steam generator) under typical accident conditions of a reactor. To characterize the phenomena of deposition and resuspension the aerosol deposit has to be well observed without disturbing the process under investigation. To fulfill this objective the attenuation of gamma radiation (60 keV Americuium 241) by the formation of a deposit in a test pipe has been measured. The Americium source has been mounted in a frame which can be moved in the x and y direction (stepwidth 0.2mm) and roteted around the pipe (stepwidth 0.1 degree). The measurement object can be scanned over a certain range. The frame can house objects of up to 500 mm in diameter. Windows of 0.7 mm thickness have been made in the testpipe surface. A deposit resolution of 1mg/cm2 is achieved. The instrument, the calibration measurements with SnO2 and CsOH and its application during the STORM experiments are presented. The use of an energy selective detector to additionally characterize the deposit composition are discussed.
JRC Directorate:Joint Research Centre Historical Collection

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