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Volume 8
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Design and Implementation of an Energy Selector for Laser-Accelerated Protons

by
Alicia Reija
1,2,†,
David Esteban
1,†,
Aarón Alejo
2,
Jon Imanol Apiñaniz
3,
Adrián Bembibre
2,
José Benlliure
2,‡,
Michael Ehret
3,
Javier García López
4,5,
M. Carmen Jiménez-Ramos
4,6,
Jessica Juan-Morales
1,
Cruz Méndez
3,
David Pascual
4,
M. Dolores Rodríguez Frías
3,7,
Mauricio Rodríguez Ramos
4 and
Michael Seimetz
1,*
1
Instituto de Instrumentación para Imagen Molecular (i3M), CSIC—Universitat Politècnica de València, 46022 Valencia, Spain
2
Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
3
Centro de Láseres Pulsados (CLPU), 37185 Salamanca, Spain
4
Centro Nacional de Aceleradores (CNA, US-Junta de Andalucía-CSIC), 41092 Sevilla, Spain
5
Departamento de Física Atómica, Molecular y Nuclear (FAMN), Universidad de Sevilla, 41012 Sevilla, Spain
6
Departamento de Física Aplicada II, Universidad de Sevilla, 41012 Sevilla, Spain
7
Departamento de Física y Matemáticas, Universidad de Alcalá, 28801 Madrid, Spain
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
‡
Present affiliation: Instituto de Física Corpuscular (CSIC-UV), 46071 Valencia, Spain
Instruments 2024, 8(3), 36; https://doi.org/10.3390/instruments8030036
Submission received: 24 April 2024 / Revised: 20 June 2024 / Accepted: 22 June 2024 / Published: 29 June 2024
Versions Notes

Abstract

Highly intense bunches of protons and ions with energies of several MeV/u can be generated with ultra-short laser pulses focused on solid targets. In the most common interaction regime, target normal sheath acceleration, the spectra of these particles are spread over a wide range following a Maxwellian distribution. We report on the design and testing of a magnetic chicane for the selection of protons within a limited energy window. This consisted of two successive, anti-parallel dipole fields generated by cost-effective permanent C-magnets with customized configuration and longitudinal positions. The chicane was implemented into the target vessel of a petawatt laser facility with constraints on the direction of the incoming laser beam and guidance of the outgoing particles through a vacuum port. The separation of protons and carbon ions within distinct energy intervals was demonstrated and compared to a ray tracing code. Measurements with radiochromic film stacks indicated the selection of protons within [2.4, 6.9] MeV, [5.0, 8.4] MeV, or ≥6.9 MeV depending on the lateral dispersion. A narrow peak at 4.8 MeV was observed with a time-of-flight detector.
Keywords: laser-plasma acceleration; proton; mono-energetic beam; magnetic dipole laser-plasma acceleration; proton; mono-energetic beam; magnetic dipole

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MDPI and ACS Style

Reija, A.; Esteban, D.; Alejo, A.; Apiñaniz, J.I.; Bembibre, A.; Benlliure, J.; Ehret, M.; García López, J.; Jiménez-Ramos, M.C.; Juan-Morales, J.; et al. Design and Implementation of an Energy Selector for Laser-Accelerated Protons. Instruments 2024, 8, 36. https://doi.org/10.3390/instruments8030036

AMA Style

Reija A, Esteban D, Alejo A, Apiñaniz JI, Bembibre A, Benlliure J, Ehret M, García López J, Jiménez-Ramos MC, Juan-Morales J, et al. Design and Implementation of an Energy Selector for Laser-Accelerated Protons. Instruments. 2024; 8(3):36. https://doi.org/10.3390/instruments8030036

Chicago/Turabian Style

Reija, Alicia, David Esteban, Aarón Alejo, Jon Imanol Apiñaniz, Adrián Bembibre, José Benlliure, Michael Ehret, Javier García López, M. Carmen Jiménez-Ramos, Jessica Juan-Morales, and et al. 2024. "Design and Implementation of an Energy Selector for Laser-Accelerated Protons" Instruments 8, no. 3: 36. https://doi.org/10.3390/instruments8030036

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