Changes between Version 14 and Version 15 of Background_Dark_Model

Timestamp:

Mar 21, 2012, 11:37:03 AM (14 years ago)

Author:

watersc1

Comment:

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Background_Dark_Model

@@ -1 +1 @@
 [wiki:Background_Continuity Return] 
+
+== March 20, 2012 ==
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+=== Variance comparison ===
+
+To investigate why we seem to have position dependent false positive rates, with biases to one side of the detector cells over the other (as shown below), I made profiles of the image variance in two ways.  First, I calculated a mean profile of the chip stage variance image.  Second, I calculated an "observed" variance profile by calculating the clipped standard deviation of the chip science image.  The results are shown below:
+
+[[Image(variance_comparison.png,400px)]]
 
 == March 19, 2012 ==