Protons Acceleration by CO2 Laser Pulses and Perspectives for Medical Applications

Londrillo, P.; Servizi, G.; Sgattoni, A.; Sinigardi, Stefano; Sumini, Marco; Turchetti, G.

doi:10.5772/38882

Cited by 1 publication

(2 citation statements)

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“…With ultrashort pulses (25-50 fs) of energy less than 10 J and tight focusing, intensities in the range 10 20 -10 21 W=cm 2 are reached and protons up to [15][16][17][18][19][20][21][22][23][24][25] MeV have been accelerated [1][2][3]. In a recent experiment, a maximum energy of 40 MeV has been measured for protons [4].…”

Section: Introductionmentioning

confidence: 96%

“…Experimental data and numerical simulations show that optimal conversion efficiency is achieved by decreasing the thickness of solid targets below one micron. The energy transfer to protons in nanometric targets is improved and the maximum energy can be even doubled with respect to thick targets [19][20][21][22]. Other target designs have been proposed to avoid the use of ultrathin foils, which require a contrast greater than 10 11 for intensities larger than 10 20 W=cm 2 .…”

Section: Introductionmentioning

confidence: 97%

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Transport and energy selection of laser generated protons for postacceleration with a compact linac

Sinigardi

Turchetti

Londrillo

et al. 2013

Phys. Rev. ST Accel. Beams

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Laser accelerated proton beams have a considerable potential for various applications including oncological therapy. However, the most consolidated target normal sheath acceleration regime based on irradiation of solid targets provides an exponential energy spectrum with a significant divergence. The low count number at the cutoff energy seriously limits at present its possible use. One realistic scenario for the near future is offered by hybrid schemes. The use of transport lines for collimation and energy selection has been considered. We present here a scheme based on a high field pulsed solenoid and collimators which allows one to select a beam suitable for injection at 30 MeV into a compact linac in order to double its energy while preserving a significant intensity. The results are based on a fully 3D simulation starting from laser acceleration.

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