Author: Bulanov, S.S.
Paper Title Page
WEOAB01 Advanced Acceleration Mechanisms for Laser Driven Ions by PW-lasers 2082
 
  • S.S. Bulanov, E. Esarey, Q. Ji, W. Leemans, T. Schenkel, S. Steinke
    LBNL, Berkeley, California, USA
  
  Funding: This work was supported by LDRD funding from Berkeley Laboratory, provided by the Director, Office of Science, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231.
With the fast development of laser technology the energy of laser accelerated proton beams rose up to almost 100 MeV. The PW-class laser facilities that are being built right now or are already in operation, such as the Berkeley Lab Laser Accelerator (BELLA) Center, will offer peak intensities approaching 1022 W/cm2. This will allow the development of a new generation laser ion accelerators for numerous applications. The integral part of this task is the investigation of the advanced acceleration mechanisms for laser driven ion beams that would allow for a high degree of control over the angular and energy distributions of ion beams, as well as the increase of the maximum ion energy. We will present recent theoretical and simulation results on three advanced acceleration mechanisms: (i) Directed Coulomb Explosion*, (ii) Radiation Pressure Acceleration**, and (iii) Magnetic Vortex acceleration***.
Reference:
* S. S. Bulanov et al, Phys. Rev. E 78, 026412 (2008).
** S. S. Bulanov et al, Phys. Rev. Lett. 114, 105003 (2015).
*** S. S. Bulanov et al, Phys. Rev. STAB 18, 061302 (2015). 		 
slides icon Slides WEOAB01 [39.942 MB]  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEOAB01  
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THPMR004 Design of a Compact ion Beam Transport System for the BELLA Ion Accelerator 3391
 
  • Q. Ji, S.S. Bulanov, E. Esarey, W. Leemans, T. Schenkel, S. Steinke
    LBNL, Berkeley, California, USA
  
  Funding: This work was supported by LDRD funding from Lawrence Berkeley National Lab, provided by the Director, Office of Science, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231.
The Berkeley Lab Laser Accelerator (BELLA) Center hosts a Ti:sapphire CPA laser providing laser pulses at petawatt-level peak power with a repetition rate of 1 Hz. High irradiances of 1022 W/cm2 can be achieved with a short focal length beamline when the laser is focused to a spot of w0 < 5 um. Under this condition, theoretical and particle-in-cell (PIC) simulations have shown that protons and helium ions at energies up to several hundred MeV/u can be expected from the interaction between BELLA laser pulses and different targets. High ion energies*, low energy spread with high controllability and stability, a new generation of ion accelerators using high performance laser-driven ion beam has numerous potential applications such as injectors for conventional accelerators, radiation therapy, as well as high energy density laboratory physics and material science studies. We will present a preliminary ion optics design to collect, transport, and focus the ions generated from the laser-driven ion accelerator, and beam dynamics results using the ion distribution from the PIC simulation.
* S.S. Bulanov et al, Physical Review Special Topics: Accelerators and Beams 18, 061302 (2015). 		 
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPMR004  
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