skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Laser acceleration of protons using multi-ion plasma gaseous targets

Journal Article · · New Journal of Physics

We present a theoretical and numerical study of a novel acceleration scheme by applying a combination of laser radiation pressure and shielded Coulomb repulsion in laser acceleration of protons in multi-species gaseous targets. By using a circularly polarized CO2 laser pulse with a wavelength of 10 μm—much greater than that of a Ti: Sapphire laser—the critical density is significantly reduced, and a high-pressure gaseous target can be used to achieve an overdense plasma. This gives us a larger degree of freedom in selecting the target compounds or mixtures, as well as their density and thickness profiles. By impinging such a laser beam on a carbon–hydrogen target, the gaseous target is first compressed and accelerated by radiation pressure until the electron layer disrupts, after which the protons are further accelerated by the electron-shielded carbon ion layer. An 80 MeV quasi-monoenergetic proton beam can be generated using a half-sine shaped laser beam with a peak power of 70 TW and a pulse duration of 150 wave periods.

Research Organization:
Univ. of Maryland, College Park, MD (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
Grant/Contract Number:
SC0008391
OSTI ID:
1341477
Alternate ID(s):
OSTI ID: 1193635
Journal Information:
New Journal of Physics, Journal Name: New Journal of Physics Vol. 17 Journal Issue: 2; ISSN 1367-2630
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United Kingdom
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

References (36)

Laser-Foil Acceleration of High-Energy Protons in Small-Scale Plasma Gradients journal July 2007
Laser Acceleration of Quasi-Monoenergetic Protons via Radiation Pressure Driven Thin Foil conference January 2011
Radiotherapy for the future journal April 2005
Photon Bubbles and Ion Acceleration in a Plasma Dominated by the Radiation Pressure of an Electromagnetic Pulse journal August 2007
Generating High-Current Monoenergetic Proton Beams by a CircularlyPolarized Laser Pulse in the Phase-StableAcceleration Regime journal April 2008
Laser acceleration of monoenergetic protons in a self-organized double layer from thin foil journal January 2009
Energetics and energy scaling of quasi-monoenergetic protons in laser radiation pressure acceleration journal December 2011
Quasi-monoenergetic protons accelerated by laser radiation pressure and shocks in thin gaseous targets journal July 2012
Monoenergetic ion beams from ultrathin foils irradiated by ultrahigh-contrast circularly polarized laser pulses journal March 2008
Three-Dimensional Simulations of Ion Acceleration from a Foil Irradiated by a Short-Pulse Laser journal April 2001
Laser driven ion acceleration conference January 2007
Laser Acceleration of Monoenergetic Protons Trapped in Moving Double Layer conference January 2008
VORPAL: a versatile plasma simulation code journal May 2004
Ion shock acceleration by large amplitude slow ion acoustic double layers in laser-produced plasmas journal February 2014
Energetic proton generation in ultra-intense laser–solid interactions journal February 2001
Three-Dimensional Dynamics of Breakout Afterburner Ion Acceleration Using High-Contrast Short-Pulse Laser and Nanoscale Targets journal July 2011
Rayleigh-Taylor Instability of an Ultrathin Foil Accelerated by the Radiation Pressure of an Intense Laser journal May 2012
Laser acceleration of quasi-monoenergetic MeV ion beams journal January 2006
Radiation pressure-assisted acceleration of ions using multi-component foils in high-intensity laser–matter interactions journal March 2013
Micrometer-sized nozzles and skimmers for the production of supersonic He atom beams journal August 1997
Highly Efficient Relativistic-Ion Generation in the Laser-Piston Regime journal April 2004
Spot size dependence of laser accelerated protons in thin multi-ion foils journal June 2014
Scaling of proton acceleration driven by petawatt-laser–plasma interactions journal December 2006
Laser acceleration of monoenergetic protons via a double layer emerging from an ultra-thin foil journal July 2009
Ultrathin formvar support films for transmission electron microscopy journal January 1985
Radiation-Pressure Acceleration of Ion Beams Driven by Circularly Polarized Laser Pulses journal December 2009
Preparation and characterization of nanometer‐thin freestanding polymer foils for laser‐ion acceleration journal July 2013
Ion Acceleration in Multispecies Targets Driven by Intense Laser Radiation Pressure journal November 2012
Laser-plasma acceleration of quasi-monoenergetic protons from microstructured targets journal January 2006
Numerical simulation of isotope production for positron emission tomography with laser-accelerated ions journal January 2006
Theory of Laminar Collisionless Shocks journal November 1971
Laser-driven proton oncology — a unique new cancer therapy? journal November 2007
Monoenergetic and GeV ion acceleration from the laser breakout afterburner using ultrathin targets journal May 2007
Quasimonoenergetic Deuteron Bursts Produced by Ultraintense Laser Pulses journal April 2006
Stable Laser-Driven Proton Beam Acceleration from a Two-Ion-Species Ultrathin Foil journal August 2010
Collisionless shocks in laser-produced plasma generate monoenergetic high-energy proton beams journal November 2011

Similar Records

Spot size dependence of laser accelerated protons in thin multi-ion foils
Journal Article · Sun Jun 15 00:00:00 EDT 2014 · Physics of Plasmas · OSTI ID:1341477

Approach towards quasi-monoenergetic laser ion acceleration with doped target
Journal Article · Thu May 15 00:00:00 EDT 2014 · Physics of Plasmas · OSTI ID:1341477

Effect of target composition on proton acceleration in ultraintense laser-thin foil interaction
Journal Article · Sat Sep 15 00:00:00 EDT 2012 · Physics of Plasmas · OSTI ID:1341477