| Autor: |
F C Salgado, N Cavanagh, M Tamburini, D W Storey, R Beyer, P H Bucksbaum, Z Chen, A Di Piazza, E Gerstmayr, Harsh, E Isele, A R Junghans, C H Keitel, S Kuschel, C F Nielsen, D A Reis, C Roedel, G Sarri, A Seidel, C Schneider, U I Uggerhøj, J Wulff, V Yakimenko, C Zepter, S Meuren, M Zepf |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
New Journal of Physics, Vol 24, Iss 1, p 015002 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
1367-2630 |
| DOI: |
10.1088/1367-2630/ac4283 |
| Popis: |
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 γ -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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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