Contribution to a conference proceedings

GSI-2025-00417

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Beam Characterization of Slow Extraction Measurement at GSI-SIS18 for Transverse Emittance Exchange Experiments

Yang, J. (Corresponding author)GSI* ; Boutachkov, P.GSI* ; Forck, P.GSI* ; Milosic, T.GSI* ; Singh, R.GSI* ; Sorge, S.GSI* ; Forck, P. (Editor) ; Wawrzyniak, A. (Editor) ; Schaa, V. R. W. (Editor) ; Kowalski, G. W. (Editor) ; Cudek, A. (Editor)

2022
JACoW Publishing Geneva, Switzerland

Please use a persistent id in citations: doi:10.18429/JACOW-IBIC2022-TUP36  doi:10.15120/GSI-2025-00417

Abstract: The quality of slowly, typically several seconds, extracted beams from the GSI synchrotron SIS18 is characterized with respect to the temporal beam stability, the so-called spillμstructure on the 100 µs scale. A pilot experiment was performed utilizing transverse emittance exchange to reduce the beam size in the extraction plane, and the improvement of spillμstructure was found. Important beam instrumentation comprises an Ionization Profile Monitor for beam profile measurement inside the synchrotron and a plastic scintillator at the external transfer line for ion counting with up to several 10⁶ particles per second and 20 µs time slices. The performant data acquisition systems, including a scaler and a fast Time-to-Digital Converter (TDC), allow for determining the spill quality. The application of the TDC in the measurement and related MAD-X simulations are discussed.

Keyword(s): Accelerator Physics ; 07 Machine Parameter Measurements

Note: Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license.

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Contributing Institute(s):

1. Beam Diagnostics (BEA)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)

Experiment(s):

1. no experiment theory work (theory)

Appears in the scientific report 2022

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Database coverage:
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