Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonlinear Inverse Compton Scattering from a Laser Wakefield Accelerator
  and Plasma Mirror   We generate inverse Compton scattered X-rays in both linear and nonlinear
regimes with a 250 MeV laser wakefield electron accelerator and plasma mirror
by retro-reflecting the unused drive laser light to scatter from the
accelerated electrons. We characterize the X-rays using a CsI(Tl) voxelated
scintillator that measures their total energy and divergence as a function of
plasma mirror distance from the accelerator exit. At each plasma mirror
position, these X-ray properties are correlated with the measured fluence and
inferred intensity of the laser pulse after driving the accelerator to
determine the laser strength parameter $a_0$. The results show that ICS X-rays
are generated at $a_0$ ranging from $0.3\pm0.1$ to $1.65\pm0.25$, and exceed
the strength of co-propagating bremsstrahlung and betatron X-rays at least
ten-fold throughout this range of $a_0$.

23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg