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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-3522
DTSTART:20141124T180000Z
DTEND:20141124T190000Z
DTSTAMP:20260419T161657Z
LAST-MODIFIED:20141121T200459Z
LOCATION:514 ERB
SUMMARY:Progress on the generation and application of ion beams driven
  by high-intensity short-pulse lasers\, Plasma Physics (Physics/ECE/NE
  922) Seminar\, Brian Albright\, LANL
DESCRIPTION:The recent development of high-power\, short-pulse laser s
 ystems has led to considerable interest in nonlinear\, relativistic\, 
 laser-plasma-interaction physics. Electrons within laser beams whose i
 ntensities exceed 1018 W/cm2 for micron-wavelength light experience ve
 ry dramatic acceleration\, reaching speeds approaching c in a single l
 aser cycle. This can lead to exotic plasma behavior\, such as the stat
 e of relativistic induced transparency (RIT) where an intense laser be
 am penetrates into plasma whose density exceeds the classical critical
  density for the laser. RIT leads to volumetric (as opposed to skin-de
 pth-layer) interaction of a laser beam with dense plasma\, enabling hi
 ghly efficient laser-plasma coupling and\, consequently\, the possibil
 ity of novel\, compact\, laser-based ion accelerators.<br><br>
\n<br><
 br>
\nLaser-based ion acceleration using RIT conditions has been demon
 strated on multiple laser systems around the world and shown to produc
 e some of the largest electric fields ever achieved—as high as sever
 al tens of TV/m\, or over ten million times that of conventional accel
 erators such as the Large Hadron Collider. Such laser-based ion accele
 rators have the potential for a variety of applications\, including fa
 st-ignition inertial fusion\, hadron therapy of tumors\, active interr
 ogation of shipping containers\, and the creation and probing of warm 
 dense matter. In this presentation\, recent progress on the generation
  and application of these ion beams at the LANL Trident Laser Facility
  will be discussed\, including the development of brilliant\, laser-ba
 sed neutron sources and the study of the properties of dense plasma me
 dia. Also\, as 100 PW laser systems are anticipated in the coming deca
 des\, new physics frontiers enabled by these lasers\, such as direct p
 robing of quantum electrodynamics\, will also be discussed.<br><br>
\n
 <br><br>
\nWork supported by the LANL Laboratory Directed Research and
  Development (LDRD) program<br><br>
\n
URL:https://www.physics.wisc.edu/events/?id=3522
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