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T: Fachverband Teilchenphysik
T 93: Detectors 9 (gas detectors)
T 93.7: Talk
Thursday, March 7, 2024, 17:30–17:45, Geb. 30.23: 2/17
High-rate electron detectors to study Compton scattering in strong-field QED — •Antonios Athanassiadis1,2, Louis Helary1, Luke Hendriks1,3, Ruth Magdalena Jacobs1, Jenny List1, Gudrid Moortgat-Pick2, Evan Ranken1, Stefan Schmitt1, Ivo Schulthess1, and Matthew Wing1,3 — 1Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany — 2Universität Hamburg, Hamburg, Germany — 3University College London (UCL), London, UK
In the field of non-perturbative quantum electrodynamics (QED), advances in high-intensity lasers allow the generation of strong fields in collisions between laser pulses and relativistic electron beams. This enables phenomena such as non-linear Compton scattering and Breit-Wheeler pair production to be probed in the laboratory.
The study of Compton energy spectra in these collisions is challenging due to the large number and wide range of outgoing particles per collision (103 to 109). Our study introduces a new detector concept combining a segmented gas-filled Cherenkov detector with scintillator screens and a camera system. Integrated into experiments such as E320 at SLAC and LUXE at DESY, these detectors allow to resolve the electron energy spectrum within the required wide dynamic range.
This talk presents the results of first beam tests with a prototype and discusses techniques to reconstruct the non-linear Compton electron energy spectrum.
Keywords: Strong-field QED; Detector development; Cherenkov counter; High-rate electron beam