Contribution to a conference proceedings/Contribution to a book

PUBDB-2022-02911

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Temperature Effects on the PETRA III Tunnel Stability

Schaumann, M. (Corresponding author)DESY* ; Bieler, M.DESY* ; Keil, J.DESY* ; Klute, J.DESY* ; Liao, L.Extern* ; Wanzenberg, R.DESY*

2022
JACoW Publishing, Geneva, Switzerland [Geneva]
ISBN: 978-3-95450-227-1

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Please use a persistent id in citations: doi:10.18429/JACOW-IPAC2022-THPOST001  doi:10.3204/PUBDB-2022-02911

Abstract: The tunnel of the synchrotron light source PETRA III is build from separate segments that are joint together every 24 m. The normal conducting magnets heat up the tunnel when operating, which leads to an expansion of the concrete walls and floor introducing movements between the tunnels segments. Especially during warm-up periods after shutdowns, this results in a drift of the accelerator elements that is transferred on the circulating beam over a duration of days, weeks or months according to the length of the cool-down period. This paper shows that not only inside temperature effects but also seasonal temperature changes are relevant.

Keyword(s): Accelerator Physics ; MC2: Photon Sources and Electron Accelerators

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Contributing Institute(s):

1. Beschleunigerphysik (MPY)
2. PETRA (MPE)
3. Strahlkontrollen (MSK)
4. Beschleunigerbetrieb (MBB)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)

Experiment(s):

1. Facility (machine) PETRA III
2. (PETRA IV)

Appears in the scientific report 2022

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