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Persistent URL http://purl.org/net/epubs/work/52956
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Record Id 52956
Title Numerical studies of curtain gas jet generation for beam profile monitoring applications in the ultra low energy storage ring
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)
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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