Poster

PUBDB-2023-07174

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Noninvasive cavity-based charge diagnostic for plasma accelerators

Bohlen, S. (Corresponding author)DESY* ; Kononenko, O.DESY* ; Schwinkendorf, J. P.Extern*XFEL.EU*DESY* ; Gruener, F.CFEL*Extern* ; Lipka, D.DESY* ; Meisel, M.DESY* ; Palmer, C.Extern* ; Staufer, T.Extern* ; Pöder, K.DESY* ; Osterhoff, J.DESY*

2023

Abstract: The charge of an electron bunch is one of the most important parametersin accelerator physics. Several techniques to measure the electron bunch charge exist.However, many conventional charge diagnostics face serious drawbacks when applied to plasmaaccelerators. For example, integrating current transformers (ICTs or toroids) have shown to besensitive to the electromagnetic pulses (EMP) originating from the plasma, whereas scintillatingscreens are sensitive to background radiation such as betatron radiation or bremsstrahlung andonly allow for a destructive measurement of the bunch charge. We show measurements ofa noninvasive, cavity-based charge diagnostic (so-called DaMon), which demonstrate its highsensitivity, high dynamic range and resistance towards plasma EMP. The measurements arecompared to both an ICT and an absolutely calibrated scintillating screen.

Note: Final report will come with the proceedings

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Contributing Institute(s):

1. Diagnose und Instrumentierung (MDI)
2. Plasma Accelerators (MPA)
3. UNI/EXP (CFEL-FXP)
4. FS-Photon Science (FS-PS)

Research Program(s):

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

Experiment(s):

1. No specific instrument

Appears in the scientific report 2023

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