<s>
A	O
straw	B-Algorithm
chamber	I-Algorithm
is	O
a	O
type	O
of	O
Gaseous	B-Algorithm
ionization	I-Algorithm
detector	I-Algorithm
.	O
</s>
<s>
Many	O
straws	O
together	O
can	O
be	O
used	O
to	O
track	O
particles	O
in	O
a	O
straw	B-Algorithm
tracker	I-Algorithm
.	O
</s>
<s>
A	O
straw	B-Algorithm
tracker	I-Algorithm
is	O
a	O
type	O
of	O
particle	B-Algorithm
detector	I-Algorithm
which	O
uses	O
many	O
straw	B-Algorithm
chambers	I-Algorithm
to	O
track	O
the	O
path	O
of	O
a	O
particle	O
.	O
</s>
<s>
a	O
helix	B-Application
in	O
a	O
magnetic	O
field	O
)	O
passes	O
through	O
many	O
straws	O
,	O
the	O
path	O
of	O
the	O
particle	O
can	O
be	O
determined	O
more	O
precisely	O
than	O
the	O
size	O
of	O
any	O
particular	O
straw	O
.	O
</s>
