Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

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

Version 1 : Received: 2 May 2024 / Approved: 7 May 2024 / Online: 7 May 2024 (17:22:50 CEST)

How to cite: 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.; Méndez, C.; Pascual, D.; Rodríguez-Frías, M. D.; Rodríguez Ramos, M.; Seimetz, A. M. Design and Implementation of an Energy Selector for Laser-Accelerated Protons. Preprints 2024, 2024050354. https://doi.org/10.20944/preprints202405.0354.v1 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.; Méndez, C.; Pascual, D.; Rodríguez-Frías, M. D.; Rodríguez Ramos, M.; Seimetz, A. M. Design and Implementation of an Energy Selector for Laser-Accelerated Protons. Preprints 2024, 2024050354. https://doi.org/10.20944/preprints202405.0354.v1

Abstract

Laser-plasma interactions of ultra-short laser pulses with solid targets can generate highly intense pulses of protons and ions with energies of several MeV. 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. It consists in two successive, anti-parallel dipole fields generated by cost-effective, permanent C-magnets with customized configuration and longitudinal positions. The chicane has been implemented into the target vessel of a petawatt laser facility under 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 has been demonstrated and compared to a ray tracing code.

Keywords

laser-plasma acceleration; proton; mono-energetic beam; magnetic dipole

Subject

Physical Sciences, Applied Physics

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