Killick.....

I agree...

The higher the CPS ..the richer the U3O8 percentage...

meanwhile..two goes inta.......

The Cn
2 values can simply be computed from the output signal (UCN2) using the following equation
2 =10(UCN 2 −12)
n C . (2)
Cn
2 = structure parameter of the refractive index of air [m-2/3]
UCN2 = log Cn2 signal [V]
For example if UCN2 = - 4.0 V, then Cn
2 = 1·10-16 m-2/3.
Because of the non-linearity between Cn
2 and the output signal of the LAS/XLAS (UCN2), an intervalaveraged
UCN2 (e.g. 10 minutes) will not yield the true interval-averaged Cn
2. Therefore we recommend
one of the following two options:
1. Measure besides the interval averages of UCN2, the variance of UCN2 ( 2
UCN 2 σ ) and apply the
following equation for deriving the correct interval-averaged Cn
2
( 2 )
2 10 UCN 2 12 1.15 UCN 2
n C − + ⋅σ = . (3)
Cn
2 = structure parameter of the refractive index of air [m-2/3]
UCN2 = log Cn2 signal [V]
2
UCN 2 σ = variance of UCN2 [V2]
2. Calculate Cn
2 immediately after each measurement cycle (e.g. 1 Hz) and derive the intervalaveraged
Cn
2 (e.g. 10 minute averages) from the instantaneous Cn
2 values. Because Cn
2
values are too small to store in most conventional data acquisition systems (~ 1·10-16) multiply
the Cn
2 values by 1·1015 (PULAS). Whether this option can be applied depends on the capability
of the data acquisition systems to perform immediate calculations with the measured data.
Afterwards the true Cn
2 values can be derived from PUCN2 as follows
15
2
2 = ⋅10− n CN C PU .

Its coming......

Anyone got a slide rule..??

Portee