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

Title: Varying stopping and self-focusing of intense proton beams as they heat solid density matter

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4945617· OSTI ID:1465197
 [1]; ORCiD logo [1];  [1];  [2];  [3];  [1]
  1. Univ. of California, San Diego, CA (United States). Center for Energy Research
  2. General Atomics, San Diego, CA (United States)
  3. Univ. of California, Irvine, CA (United States). Dept. of Physics and Astronomy

For this study, the transport of intense proton beams in solid-density matter is numerically investigated using an implicit hybrid particle-in-cell code. Both collective effects and stopping for individual beam particles are included through the electromagnetic fields solver and stopping power calculations utilizing the varying local target conditions, allowing self-consistent transport studies. Two target heating mechanisms, the beam energy deposition and Ohmic heating driven by the return current, are compared. The dependences of proton beam transport in solid targets on the beam parameters are systematically analyzed, i.e., simulations with various beam intensities, pulse durations, kinetic energies, and energy distributions are compared. The proton beam deposition profile and ultimate target temperature show strong dependence on intensity and pulse duration. A strong magnetic field is generated from a proton beam with high density and tight beam radius, resulting in focusing of the beam and localized heating of the target up to hundreds of eV.

Research Organization:
Univ. of California, San Diego, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0002034; AC52-07NA27344; FA9550-14-1-0346
OSTI ID:
1465197
Alternate ID(s):
OSTI ID: 1247017
Journal Information:
Physics of Plasmas, Vol. 23, Issue 4; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

References (36)

Electron beam hollowing in laser–solid interactions journal July 2006
Correlated ion stopping in plasmas journal July 1997
An electron conductivity model for dense plasmas journal January 1984
A review of focused ion beam applications in microsystem technology journal July 2001
Zur Theorie des Durchgangs schneller Korpuskularstrahlen durch Materie journal January 1930
Physics of neutralization of intense high-energy ion beam pulses by electrons journal May 2010
A unified self-consistent model for calculating ion stopping power in ICF plasma journal August 1998
Zur Bremsung rasch bewegter Teilchen beim Durchgang durch Materie journal January 1933
Equation of state, transport coefficients, and stopping power of dense plasmas from the average-atom model self-consistent approach for astrophysical and laboratory plasmas journal May 2010
Integrated simulation of the generation and transport of proton beams from laser-target interaction journal June 2006
Shell corrections in stopping powers journal April 2002
Focusing of Relativistic Electrons in Dense Plasma Using a Resistivity-Gradient-Generated Magnetic Switchyard journal March 2012
Molecular Dynamics Simulations of Classical Stopping Power journal November 2013
Stopping of energetic light ions in elemental matter journal February 1999
Two-stream stability properties of the return-current layer for intense ion beam propagation through background plasma journal September 2009
Measurement of Charged-Particle Stopping in Warm Dense Plasma journal May 2015
Physical mechanisms of transient enhanced dopant diffusion in ion-implanted silicon journal May 1997
Dynamics of high-energy proton beam acceleration and focusing from hemisphere-cone targets by high-intensity lasers journal January 2013
Introducing the fission–fusion reaction process: using a laser-accelerated Th beam to produce neutron-rich nuclei towards the N=126 waiting point of the r-process journal October 2010
Nuclear stopping power in warm and hot dense matter journal January 2013
Generation of high-energy (>15 MeV) neutrons using short pulse high intensity lasers journal September 2012
Stopping power modeling in warm and hot dense matter journal September 2013
Simulations of intense heavy ion beams propagating through a gaseous fusion target chamber journal May 2002
A finite material temperature model for ion energy deposition in ion‐driven inertial confinement fusion targets journal November 1981
Equation-of-State Measurement of Dense Plasmas Heated With Fast Protons journal July 2008
Theory and simulation of heavy ion stopping in plasma journal June 2009
Intense High-Energy Proton Beams from Petawatt-Laser Irradiation of Solids journal October 2000
Practical Improvements to the Lee-More Conductivity Near the Metal-Insulator Transition journal March 2001
Electric and magnetic field generation and target heating by laser-generated fast electrons journal November 2003
Super-intense quasi-neutral proton beams interacting with plasma: a numerical investigation journal February 2004
Fast electron energy transport in solid density and compressed plasma journal April 2014
Fast ignition with laser-driven proton and ion beams journal April 2014
Heat flux effects on magnetic field dynamics in solid density plasmas traversed by relativistic electron beams journal July 2013
Electron-Ion Equilibration in Ultrafast Heated Graphite journal April 2014
Focusing of short-pulse high-intensity laser-accelerated proton beams journal December 2011
Production of neutrons up to 18 MeV in high-intensity, short-pulse laser matter interactions journal October 2011

Cited By (4)