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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/48717
Record Status
Checked
Record Id
48717
Title
Heavy-ion-induced electron desorption of gas from metals
Contributors
AW Molvik
,
H Kollmus
,
E Mahner
,
M Kireeff Covo
,
MC Bellachioma
,
M Bender
,
FM Bieniosek
,
E Hedlund
,
A Krämer
,
J Kwan
,
OB Malyshev (CCLRC Daresbury Lab.)
,
L Prost
,
PA Seidl
,
G Westenskow
,
L Westerberg
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 ioninduced 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 (dEe=dx) of the ions slowing down in matter; but it varies only little with the ion impact angle, unlike electronic sputtering.
Organisation
CCLRC
,
ASTeC
,
ASTeC-VS
Keywords
UHV
,
Physics
,
heavy ion induced desorption
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
Phys Rev Lett
98 (2007): 064801.
doi:10.1103/PhysRevLett.98.064801
2007
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