Calibration Access and Data Handbook

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This vignetting of the RGA is effective for $\beta>\beta_{\rm
vig}$. The transmission of the RGA has the following parameterization:

\begin{displaymath}F(\beta) = \left \{
1 & ,\ {\rm for}\ \...
...a} & ,\ {\rm for}\ \beta > \beta_{\rm vig}

Emiprical Corrections of these values are provided in the table RGA_SELFVIGNCORR in CCF QuantumEf (section 4.4.17). After interpolation of this table, the analytical function be multiplied my these correction factors.

Michael Smith 2011-09-20