Ultrafast Laser-Driven Microlens to Focus and Energy-Select Mega-Electron Volt Protons | Zendy

T. Toncian | Zendy; M. Borghesi | Zendy; J. Fuchs | Zendy; E. d’Humières | Zendy; P. Antici | Zendy; P. Audebert | Zendy; E. Brambrink | Zendy; C. A. Cecchetti | Zendy; A. Pipahl | Zendy; L. Romagnani | Zendy; Oswald Willi | Zendy

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Ultrafast Laser-Driven Microlens to Focus and Energy-Select Mega-Electron Volt Protons

Author(s) -

T. Toncian,

M. Borghesi,

J. Fuchs,

E. d’Humières,

P. Antici,

P. Audebert,

E. Brambrink,

C. A. Cecchetti,

A. Pipahl,

L. Romagnani,

Oswald Willi

Publication year - 2006

Publication title -

science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 12.556

H-Index - 1186

eISSN - 1095-9203

pISSN - 0036-8075

DOI - 10.1126/science.1124412

Subject(s) - proton , laser , transient (computer programming) , optics , volt , electron , beam (structure) , cathode ray , ultrashort pulse , range (aeronautics) , materials science , physics , optoelectronics , voltage , nuclear physics , computer science , quantum mechanics , composite material , operating system

We present a technique for simultaneous focusing and energy selection of high-current, mega-electron volt proton beams with the use of radial, transient electric fields (10(7) to 10(10) volts per meter) triggered on the inner walls of a hollow microcylinder by an intense subpicosecond laser pulse. Because of the transient nature of the focusing fields, the proposed method allows selection of a desired range out of the spectrum of the polyenergetic proton beam. This technique addresses current drawbacks of laser-accelerated proton beams, such as their broad spectrum and divergence at the source.

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