Springer LINK: The European Physical Journal A - Abstract Volume 2 Issue 4 (1998) pp 417-423

The European Physical Journal A

ISSN: 1434-6001 (printed version)
ISSN: 1434-601X (electronic version)

Table of Contents

Abstract Volume 2 Issue 4 (1998) pp 417-423

interdisciplinary topics: 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

Abstact: A new method based on parallel aerosol size spectrometry and <Gamma>-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. The 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. <beta><Gamma><Gamma>) is possible.

PACS: 42.68.Jg Effects of aerosols - 07.77.Ka Charged-particle beam sources and detectors

Communicated by B. Povh

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