Experimental characterisation of a single-shot spectrometer for high-flux, GeV-scale gamma-ray beams - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Phys.Rev.Res. Année : 2023

Experimental characterisation of a single-shot spectrometer for high-flux, GeV-scale gamma-ray beams

Résumé

We report on the first experimental characterisation of a gamma-ray spectrometer designed to spectrally resolve high-flux photon beams with energies in the GeV range. The spectrometer has been experimentally characterised using a bremsstrahlung source obtained at the Apollon laser facility during the interaction of laser-wakefield accelerated electron beams (maximum energy of 1.7 GeV and overall charge of 207$\pm$62 pC) with a 1 mm thick tantalum target. Experimental data confirms the possibility of performing single-shot measurements, without the need for accumulation, with a high signal to noise ratio. Scaling the results to photons in the multi-GeV range suggests the possibility of achieving percent-level energy resolution, as required, for instance, by the next generation of experiments in strong-field quantum electrodynamics.

Dates et versions

hal-04100110 , version 1 (17-05-2023)

Identifiants

Citer

N Cavanagh, K Fleck, M.J.V Streeter, E Gerstmayr, L. T. Dickson, et al.. Experimental characterisation of a single-shot spectrometer for high-flux, GeV-scale gamma-ray beams. Phys.Rev.Res., 2023, 5 (4), pp.043046. ⟨10.1103/PhysRevResearch.5.043046⟩. ⟨hal-04100110⟩
63 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More