Format

Send to

Choose Destination
See comment in PubMed Commons below
Phys Rev Lett. 2007 Feb 9;98(6):064801. Epub 2007 Feb 6.

Heavy-ion-induced electronic desorption of gas from metals.

Author information

1
Heavy-Ion Fusion Science Virtual National Laboratory, Berkeley, California 94720, USA.

Abstract

During heavy-ion operation in several particle accelerators worldwide, dynamic pressure rises of orders of magnitude were triggered by lost beam ions that bombarded the vacuum chamber walls. This ion-induced molecular desorption, observed at CERN, GSI, and BNL, can seriously limit the ion beam lifetime and intensity of the accelerator. From dedicated test stand experiments we have discovered that heavy-ion-induced gas desorption scales with the electronic energy loss (dE_{e}/dx) of the ions slowing down in matter; but it varies only little with the ion impact angle, unlike electronic sputtering.

PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Physical Society
    Loading ...
    Support Center