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

We report on the first experimental characterization of a gamma-ray spectrometer designed to spectrally resolve high-flux photon beams with energies in the GeV range. The spectrometer has been experimentally characterized using a bremsstrahlung source obtained at the Apollon laser facility during th...

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Main Authors: N. Cavanagh, K. Fleck, M. J. V. Streeter, E. Gerstmayr, L. T. Dickson, C. Ballage, R. Cadas, L. Calvin, S. Dobosz Dufrénoy, I. Moulanier, L. Romagnani, O. Vasilovici, A. Whitehead, A. Specka, B. Cros, G. Sarri
Format: Article
Language:English
Published: American Physical Society 2023-10-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.5.043046
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author N. Cavanagh
K. Fleck
M. J. V. Streeter
E. Gerstmayr
L. T. Dickson
C. Ballage
R. Cadas
L. Calvin
S. Dobosz Dufrénoy
I. Moulanier
L. Romagnani
O. Vasilovici
A. Whitehead
A. Specka
B. Cros
G. Sarri
author_facet N. Cavanagh
K. Fleck
M. J. V. Streeter
E. Gerstmayr
L. T. Dickson
C. Ballage
R. Cadas
L. Calvin
S. Dobosz Dufrénoy
I. Moulanier
L. Romagnani
O. Vasilovici
A. Whitehead
A. Specka
B. Cros
G. Sarri
author_sort N. Cavanagh
collection DOAJ
description We report on the first experimental characterization of a gamma-ray spectrometer designed to spectrally resolve high-flux photon beams with energies in the GeV range. The spectrometer has been experimentally characterized 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±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.
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spelling doaj.art-16abfec62b4144b69cf451c3dad94ea62024-04-12T17:35:03ZengAmerican Physical SocietyPhysical Review Research2643-15642023-10-015404304610.1103/PhysRevResearch.5.043046Experimental characterization of a single-shot spectrometer for high-flux, GeV-scale gamma-ray beamsN. CavanaghK. FleckM. J. V. StreeterE. GerstmayrL. T. DicksonC. BallageR. CadasL. CalvinS. Dobosz DufrénoyI. MoulanierL. RomagnaniO. VasiloviciA. WhiteheadA. SpeckaB. CrosG. SarriWe report on the first experimental characterization of a gamma-ray spectrometer designed to spectrally resolve high-flux photon beams with energies in the GeV range. The spectrometer has been experimentally characterized 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±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.http://doi.org/10.1103/PhysRevResearch.5.043046
spellingShingle N. Cavanagh
K. Fleck
M. J. V. Streeter
E. Gerstmayr
L. T. Dickson
C. Ballage
R. Cadas
L. Calvin
S. Dobosz Dufrénoy
I. Moulanier
L. Romagnani
O. Vasilovici
A. Whitehead
A. Specka
B. Cros
G. Sarri
Experimental characterization of a single-shot spectrometer for high-flux, GeV-scale gamma-ray beams
Physical Review Research
title Experimental characterization of a single-shot spectrometer for high-flux, GeV-scale gamma-ray beams
title_full Experimental characterization of a single-shot spectrometer for high-flux, GeV-scale gamma-ray beams
title_fullStr Experimental characterization of a single-shot spectrometer for high-flux, GeV-scale gamma-ray beams
title_full_unstemmed Experimental characterization of a single-shot spectrometer for high-flux, GeV-scale gamma-ray beams
title_short Experimental characterization of a single-shot spectrometer for high-flux, GeV-scale gamma-ray beams
title_sort experimental characterization of a single shot spectrometer for high flux gev scale gamma ray beams
url http://doi.org/10.1103/PhysRevResearch.5.043046
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