The behaviour of carbon stripper foils under heavy ion bombardment
Open Access
- 1 January 1977
- journal article
- Published by EDP Sciences in Revue de Physique Appliquée
- Vol. 12 (10) , 1535-1538
- https://doi.org/10.1051/rphysap:0197700120100153500
Abstract
The lifetime of carbon stripper foils when bombarded whith 4.8 MeV A ++ ions in a hydrocarbon-free vacuum environment has been investigated. The lifetime of the foils is limited not by thickening but by shrinkage and rupture, and can be improved by a factor of 3 by irradiating at a temperature of 600 °C. Thinner foils (nominally half thickness) produced on a cellulose backing had a shorter life, but since the transmitted beam is greater, they show an improvement of 30 %. Further improvements in foil lifetime can only be achieved by reduction of the shrinkage rate, or by improvements to the resistance of the foils to shrinkageKeywords
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