Preprint

PUBDB-2025-03784

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png A dump leakage calorimeter to measure the flux of high-energy electrons and photons

Athanassiadis, A.DESY* ; Behnke, T.DESY* ; Svensson, J. B.Extern*DESY* ; Borysov, O.DESY* ; Borysova, M.Extern* ; Boulton, L.Extern*DESY* ; Chindaratchakul, S.DESY* ; Heinemann, B.DESY* ; Helary, L.DESY* ; Jacobs, R.DESY* ; Kanekar, A.Extern*DESY* ; List, J.DESY* ; Long, T.XFEL.EU*DESY* ; Marsault, T.Extern* ; Peña, F. ; Schmitt, S.DESY* ; Schröder, S.DESY* ; Schulthess, I. (Corresponding author)Extern* ; Wesch, S.DESY* ; Wing, M.Extern* ; Wood, J.DESY*

2025

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Please use a persistent id in citations: doi:10.3204/PUBDB-2025-03784

Report No.: arXiv:2508.17991

Abstract: We developed a novel apparatus based on a lead glass calorimeter that can measure the flux of high-energy electrons or photons. Our detector uses the electromagnetic shower leakage from the beam dump, where the particles are disposed of at the beamline's end. A prototype of such a calorimeter was set up at the FLASHForward experiment at DESY. We show that it can measure the electron bunch charge with precision and accuracy at the 10% and 3% level, respectively. Additionally, it is capable of determining the beam's position with a precision on the order of tens of micrometers. Finally, we show the applicability to the measurement of high-energy photons.

Note: Supported by the Swiss National Science Foundation under grant no. 214492

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Contributing Institute(s):

1. Technol. zukünft. Teilchenph. Experim. (FTX)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. ZT-0009 - Plasma Accelerators (2018_ZT-0009) (2018_ZT-0009)

Experiment(s):

1. FLASHForward

Appears in the scientific report 2025

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Database coverage:
; ; Published

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