Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fast Ignition Laser Fusion Using In-Situ Ion Acceleration With Pulsed
  CO2 Lasers   Fast ignition is an alternative concept of laser fusion in which the task of
compressing the fusion pellet to supersolid densities is accomplished by the
conventional high energy nanosecond glass lasers and the task of igniting the
compressed pellet is given to a high intensity, moderate energy pico second
source which can set the pellet ablaze (with DT fusion reactions) by creating
an adequate size hot spot in it. In this letter, we present a conceptual method
by which energy from carbon dioxide ($ CO_2 $) laser could be coupled to heat
up ions produced in situ in the plasma, which in turn produces the required hot
spot. An efficient conversion of $ CO_2 $ energy into ion beam energy can thus
give us the required source of energy for the fast ignition laser fusion. We
demonstrate by using PIC (Particle - In - Cell) simulations that the use of
several Kilo Tesla of an external magnetic field in the transverse direction in
an inhomogeneous plasma where a cutoff is followed by a resonance can lead to
coupling of laser energy to a lower hybrid ion plasma resonance. Then ions are
accelerated efficiently ($\sim 1 MeV$) by the breaking of lower hybrid waves
and thereby enabling the possibility of fast ignition by ions in a convenient
fashion.

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The categories of this paper are: adap-org
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The categories of this paper are: chem-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: ao-sci
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The categories of this paper are: q-bio
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The categories of this paper are: q-fin
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The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-th
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The categories of this paper are: stat
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The categories of this paper are: bayes-an
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The categories of this paper are: eess
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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn