Electronic Desorption of gas from metals
Abstract
During heavy ion operation in several particle accelerators world-wide, 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{sub e}/dx) of the ions slowing down in matter; but it varies only little with the ion impact angle, unlike electronic sputtering.
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 907844
- Report Number(s):
- UCRL-JRNL-225817
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US0703331
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 98; Journal ID: ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 29 ENERGY PLANNING, POLICY AND ECONOMY; 74 ATOMIC AND MOLECULAR PHYSICS; ACCELERATORS; BNL; CERN; DESORPTION; HEAVY IONS; ION BEAMS; LIFETIME; SLOWING-DOWN; SPUTTERING
Citation Formats
Molvik, A W, Kollmus, H, Mahner, E, Covo, M K, Bender, M, Bieniosek, F M, Kramer, A, Kwan, J, Prost, L, Seidl, P A, and Westenskow, G. Electronic Desorption of gas from metals. United States: N. p., 2006.
Web.
Molvik, A W, Kollmus, H, Mahner, E, Covo, M K, Bender, M, Bieniosek, F M, Kramer, A, Kwan, J, Prost, L, Seidl, P A, & Westenskow, G. Electronic Desorption of gas from metals. United States.
Molvik, A W, Kollmus, H, Mahner, E, Covo, M K, Bender, M, Bieniosek, F M, Kramer, A, Kwan, J, Prost, L, Seidl, P A, and Westenskow, G. 2006.
"Electronic Desorption of gas from metals". United States. https://www.osti.gov/servlets/purl/907844.
@article{osti_907844,
title = {Electronic Desorption of gas from metals},
author = {Molvik, A W and Kollmus, H and Mahner, E and Covo, M K and Bender, M and Bieniosek, F M and Kramer, A and Kwan, J and Prost, L and Seidl, P A and Westenskow, G},
abstractNote = {During heavy ion operation in several particle accelerators world-wide, 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{sub e}/dx) of the ions slowing down in matter; but it varies only little with the ion impact angle, unlike electronic sputtering.},
doi = {},
url = {https://www.osti.gov/biblio/907844},
journal = {Physical Review Letters},
issn = {0031-9007},
number = ,
volume = 98,
place = {United States},
year = {Thu Nov 02 00:00:00 EST 2006},
month = {Thu Nov 02 00:00:00 EST 2006}
}
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