Adsorption of radioactive ions on carnauba-wax aerosols
A. Paul - U. Keyser
Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116
Braunschweig, Tel. +49(531)592-8523,
Fax. +49(531)592-8525
Received: 26 January 1998 / Revised version: 8 May 1998 Communicated by B. Povh
Abstract
A new method based on parallel aerosol size spectrometry and
-spectrometry is introduced for the measurement of
short-lived radioactive ions, fission products or
super-heavy elements produced at accelerators.
Furthermore a new aerosol generator is presented.
to 9ptThe possibility of controlling and changing the aerosol size
distribution in the helium aerosol jet produced by the aerosol generator
allows the process of the adsorption and transport
of radioactive ions on aerosols to be examined for the first time.
This is due to the fact that the distribution is surveyed
on-line using a negligible part of its total volume and
parallel to the transporting flow.
The radioactivity of the transported ions is measured by a germanium detector in offline position.
In principle, both an on- or offline position with narrow multi-detector geometry
(e.g. 
) is possible.
PACS
42.68.Jg Effects of aerosols -
07.77.Ka Charged-particle beam sources and detectors
Copyright Springer-Verlag
