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Persistent URL
http://purl.org/net/epubs/work/52956
Record Status
Checked
Record Id
52956
Title
Numerical studies of curtain gas jet generation for beam profile monitoring applications in the ultra low energy storage ring
Contributors
M Putignano (Cockcroft Inst., and Liverpool Univ.) (Pr.Au.)
,
CP Welsch (Cockcroft Inst., and Liverpool Univ.)
Abstract
For beam profile monitoring applications where low beam perturbation together with bi-dimensional imaging is required, ionization monitors based on neutral gas-jet targets shaped into a thin curtain are an interesting option. When integrated in ultra-high vacuum systems, such as in the Ultra-low energy Storage Ring (USR), where local vacuum preservation is of primary concern, such systems present severe difficulties linked to the creation and proper shaping of a high quality gas-jet curtain. In this contribution, investigations into the generation and evolution of the jet with the Gas Dynamics Tool (GDT) software and purpose-written C++ analysis modules are presented. By means of extensive numerical analysis the advantages of a novel nozzle-skimmer system in terms of curtain quality are summarized when compared to traditional axisymmetric gas-jet creation and curtain shaping by means of scrapers. It is also shown that variable nozzle-skimmer geometries allow for modifying the gas-jet characteristics in a wide range, including jet splitting and local density modulation. Finally, the layout of a test stand that will be used for an experimental benchmark of these studies is shown.
Organisation
CI
Keywords
Physics
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Language
English (EN)
Type
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Year
Paper In Conference Proceedings
In Beam Instrumentation Workshop (BIW10), Santa Fe, New Mexico, USA, 2-6 May 2010,
CI Preprints
, Cockcroft-10-07 (2010).
Cockcroft-10-07.pdf
2010
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