Studies of high-field QED with the LUXE experiment at the European XFEL
| Autor: | Borysova, Maryna |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
radiation detector
Detector modelling and simulations I (interaction of radiation with matter interaction of photons with matter interaction of hadrons with matter etc.) detector: performance Physics::Instrumentation and Detectors Large detector systems for particle and astroparticle physics photon Compton scattering: nonlinear crossing positron: pair production calorimeter: electromagnetic semiconductor detector: pixel lead-glass quantum electrodynamics beam dump Physics::Accelerator Physics electron: energy spectrum positron: energy spectrum tracking detector Cherenkov electron: beam backscatter numerical calculations: Monte Carlo laser: beam scintillation counter |
| DOI: | 10.3204/pubdb-2021-05017 |
| Popis: | The LUXE experiment aims at studying high-field QED in electron-laser and photon-laser interactions, with the 16.5 GeV electron beam of the European XFEL and a laser beam with power of up to 350 TW. The experiment will measure the spectra of electrons and photons in non-linear Compton scattering where production rates in excess of 10$^{9}$ are expected per 1 Hz bunch crossing. At the same time positrons from pair creation in either the two-step trident process or the Breit-Wheeler process will be measured, where the expected rates range from 10$^{���3}$ to 10$^{4}$ per bunch crossing, depending on the laser power and focus. These measurements have to be performed in the presence of low-energy high radiation-background. To meet these challenges, for high-rate electron and photon fluxes, the experiment will use Cherenkov radiation detectors, scintillator screens, sapphire sensors as well as lead-glass monitors for back-scattering off the beam-dump. A four-layer silicon-pixel tracker and a compact sampling electromagnetic calorimeter will be used to measure the positron spectra. The layout of the experiment and the expected performance under the harsh radiation conditions will be presented. |
| Databáze: | OpenAIRE |
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