Single particle detection system for strong-field QED experiments

Salgado, F. C.; Cavanagh, N.; Tamburini, Matteo; Storey, D. W.; Beyer, R.; Bucksbaum, P. H.; Chen, Z.; Di Piazza, A.; Gerstmayr, E.; Harsh,; Isele, E.; Junghans, A. R.; Keitel, C. H.; Kuschel, S.; Nielsen, C. F.; Reis, D. A.; Roedel, C.; Sarri, G.; Seidel, A.; Schneider, C.; Uggerhøj, U. I.; Wulff, J.; Yakimenko, V.; Zepter, C.; Meuren, S.; Zepf, M.

doi:10.1088/1367-2630/ac4283

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Single particle detection system for strong-field QED experiments

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Tamburini, Matteo
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society,;

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Di Piazza, A.
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society,;

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Keitel, C. H.
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society,;

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https://iopscience.iop.org/article/10.1088/1367-2630/ac4283/pdf
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Zitation

Salgado, F. C., Cavanagh, N., Tamburini, M., Storey, D. W., Beyer, R., Bucksbaum, P. H., et al. (2021). Single particle detection system for strong-field QED experiments. New Journal of Physics, 24: 015002. doi:10.1088/1367-2630/ac4283.

Zitierlink: https://hdl.handle.net/21.11116/0000-0009-C35B-5

Zusammenfassung

Measuring signatures of strong-field quantum electrodynamics (SF-QED)
processes in an intense laser field is an experimental challenge: it requires
detectors to be highly sensitive to single electrons and positrons in the
presence of the typically very strong x-ray and $\gamma$-photon background
levels. In this paper, we describe a particle detector capable of diagnosing
single leptons from SF-QED interactions and discuss the background level
simulations for the upcoming Experiment-320 at FACET-II (SLAC National
Accelerator Laboratory). The single particle detection system described here
combines pixelated scintillation LYSO screens and a Cherenkov calorimeter. We
detail the performance of the system using simulations and a calibration of the
Cherenkov detector at the ELBE accelerator. Single 3 GeV leptons are expected
to produce approximately 537 detectable photons in a single calorimeter
channel. This signal is compared to Monte-Carlo simulations of the experiment.
A signal-to-noise ratio of 18 in a single Cherenkov calorimeter detector is
expected and a spectral resolution of 2% is achieved using the pixelated LYSO
screens.