<s>
The	O
EGS	B-Algorithm
(	O
Electron	O
Gamma	O
Shower	O
)	O
computer	O
code	O
system	O
is	O
a	O
general	O
purpose	O
package	O
for	O
the	O
Monte	B-Algorithm
Carlo	I-Algorithm
simulation	I-Algorithm
of	O
the	O
coupled	O
transport	O
of	O
electrons	O
and	O
photons	B-Application
in	O
an	O
arbitrary	O
geometry	O
for	O
particles	O
with	O
energies	O
from	O
a	O
few	O
keV	O
up	O
to	O
several	O
hundreds	O
of	O
GeV	O
.	O
</s>
<s>
Development	O
of	O
the	O
original	O
EGS	B-Algorithm
code	O
ended	O
with	O
version	O
EGS4	O
.	O
</s>
<s>
EGSnrc	B-Algorithm
is	O
a	O
general-purpose	O
software	O
toolkit	O
that	O
can	O
be	O
applied	O
to	O
build	O
Monte	B-Algorithm
Carlo	I-Algorithm
simulations	I-Algorithm
of	O
coupled	O
electron-photon	O
transport	O
,	O
for	O
particle	O
energies	O
ranging	O
from	O
1	O
keV	O
to	O
10	O
GeV	O
.	O
</s>
<s>
The	O
EGSnrc	B-Algorithm
implementation	O
improves	O
the	O
accuracy	O
and	O
precision	O
of	O
the	O
charged	O
particle	O
transport	O
mechanics	O
and	O
the	O
atomic	O
scattering	O
cross-section	O
data	O
.	O
</s>
<s>
EGSnrc	B-Algorithm
also	O
includes	O
a	O
C++	O
class	O
library	O
called	O
egs++	O
that	O
can	O
be	O
used	O
to	O
model	O
elaborate	O
geometries	O
and	O
particle	O
sources	O
.	O
</s>
<s>
EGSnrc	B-Algorithm
is	O
open	O
source	O
and	O
distributed	O
on	O
GitHub	B-Application
under	O
the	O
GNU	B-Application
Affero	I-Application
General	I-Application
Public	I-Application
License	I-Application
.	O
</s>
<s>
Download	O
EGSnrc	B-Algorithm
for	O
free	O
,	O
submit	O
bug	O
reports	O
,	O
and	O
contribute	O
pull	O
requests	O
on	O
a	O
group	O
GitHub	B-Application
page	O
.	O
</s>
<s>
The	O
documentation	O
for	O
EGSnrc	B-Algorithm
is	O
also	O
available	O
online	O
.	O
</s>
<s>
EGSnrc	B-Algorithm
is	O
distributed	O
with	O
a	O
wide	O
range	O
of	O
applications	O
that	O
utilize	O
the	O
radiation	O
transport	O
physics	O
to	O
calculate	O
specific	O
quantities	O
.	O
</s>
<s>
These	O
codes	O
have	O
been	O
developed	O
by	O
numerous	O
authors	O
over	O
the	O
lifetime	O
of	O
EGSnrc	B-Algorithm
to	O
support	O
the	O
large	O
user	O
community	O
.	O
</s>
<s>
One	O
of	O
the	O
most	O
well-known	O
EGSnrc	B-Algorithm
applications	O
is	O
BEAMnrc	B-Algorithm
,	O
which	O
was	O
developed	O
as	O
part	O
of	O
the	O
OMEGA	O
project	O
.	O
</s>
<s>
All	O
types	O
of	O
medical	O
linear	O
accelerators	O
can	O
be	O
modelled	O
using	O
the	O
BEAMnrc	B-Algorithm
's	O
component	O
module	O
system	O
.	O
</s>
