<s>
McXtrace	B-Application
is	O
an	O
open	O
source	O
software	O
package	O
for	O
performing	O
Monte	O
Carlo	O
simulations	O
of	O
X-ray	O
scattering	O
experiments	O
.	O
</s>
<s>
McXtrace	B-Application
is	O
free	B-Application
software	I-Application
released	O
under	O
the	O
GNU	B-License
GPL	I-License
.	O
</s>
<s>
McXtrace	B-Application
was	O
first	O
spun	O
off	O
as	O
a	O
sister	O
project	O
to	O
the	O
well	O
known	O
and	O
proven	O
neutron	O
ray-tracing	O
package	O
McStas	O
in	O
a	O
project	O
funded	O
jointly	O
by	O
:	O
</s>
<s>
McXtrace	B-Application
works	O
in	O
the	O
way	O
that	O
a	O
user	O
describes	O
his/her	O
beamline	O
in	O
a	O
special	O
file	O
.	O
</s>
<s>
McXtrace	B-Application
is	O
well	O
suited	O
to	O
describe	O
X-ray	O
synchrotron	O
beam-lines	O
by	O
assembling	O
a	O
series	O
of	O
so-called	O
components	O
:	O
</s>
