HALO Users Manual
Revision G
3
)
1
(
R
c
d
zero
)
*
$
)
)
(
)
1
((
)
(
Nd
R
c
d
+
,
+
$
-
)
*
)
1
)
(
1
(
)
(
1
zero
c
N
$
+
$
+
,
)
*
c = Speed of Light
!
= Absorption Cross Section
d = Cell Length
$
(
+
)=
"
Ringdown Time
R = Reflectivity of the Mirror
+
= Laser Frequency
N = Molecular Density
(concentration)
Figure 1-4 Concentration (N) Calculation
