Evanescent-wave proton postaccelerator driven by intense THz pulse

Hadron therapy motivates research dealing with the production of particle beams with ∼100MeV/nucleon energy and relative energy fluctuation on the order of 1%. Laser-driven accelerators produce ion beams with only tens of MeV/nucleon energy and an extremely broad spectra. Here, a novel method is pro...

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Bibliographic Details
Published in:Physical review special topics. PRST-AB. Accelerators and beams 2014-03, Vol.17 (3), p.031301, Article 031301
Main Authors: Pálfalvi, L., Fülöp, J. A., Tóth, Gy, Hebling, J.
Format: Article
Language:English
Subjects:
Electromagnetic radiation
Energy distribution
Ion beams
Monochromatization
Nucleons
Particle accelerators
Particle beams
Protons
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Summary:Hadron therapy motivates research dealing with the production of particle beams with ∼100MeV/nucleon energy and relative energy fluctuation on the order of 1%. Laser-driven accelerators produce ion beams with only tens of MeV/nucleon energy and an extremely broad spectra. Here, a novel method is proposed for postacceleration and monochromatization of particles, leaving the laser-driven accelerator, by using intense THz pulses. It is based on further developing the idea of using the evanescent field of electromagnetic waves between a pair of dielectric crystals. Simple model calculations show that the energy of a proton bunch can be increased from 40 to 56 MeV in five stages and its initially broad energy distribution can be significantly narrowed down.
ISSN:1098-4402
1098-4402
2469-9888
DOI:10.1103/PhysRevSTAB.17.031301