Changes between Version 22 and Version 23 of Background_Dark_Model

Timestamp:

Mar 27, 2012, 5:50:35 PM (14 years ago)

Author:

watersc1

Comment:

--

Background_Dark_Model

@@ -1 +1 @@
 [wiki:Background_Continuity Return] 
+
+== March 27, 2012 ==
+
+Normalized single-detection x-position CDF plots for all exposures used in the czw.footprint.noisemap test:
+
+[[Image(col0_noisemap.png,400px)]]
+[[Image(col1_noisemap.png,400px)]]
+
+[[Image(col2_noisemap.png,400px)]]
+[[Image(col3_noisemap.png,400px)]]
+
+[[Image(col4_noisemap.png,400px)]]
+[[Image(col5_noisemap.png,400px)]]
+
+[[Image(col6_noisemap.png,400px)]]
+[[Image(col7_noisemap.png,400px)]]
+
+This still shows the ramp effect caused by position dependence in the false positives.  I've checked that the noisemap was used, and it was, and an examination of the variance map shows the added variance due to the noisemap so it appears that the detrend creation and the recipes are correct.
+
+Comparing the detection histograms for the various reductions (dropping the oldipp reduction, as it appears to have different flag definitions than later reductions):
+
+[[Image(02_czwreduct.png,400px)]]
+[[Image(03_continuity.png,400px)]]
+[[Image(04_newdark.png,400px)]]
+[[Image(05_noisemap.png,400px)]]
+
+The noisemap does remove a significant number of false detections, as shown in the following table:
+
+||Reduction || All N=1 || All N=12 || Good flags N=1 || Good flags N=12 || QF Perfect N=1 || QF Perfect N=12 ||
+|| oldipp   || 299374  || 420635   || 38             || 30              ||194169 (ignore flags) || 404422 (ignore flags) ||
+|| czwreduction || 298849 || 420891 || 264070 || 414845 || 165624 || 401662 ||
+|| continuity || 271480 || 417811 || 237525 || 411810 || 142463 || 398707 ||
+|| new dark || 223680 || 422322 || 191487 || 416508 || 98467 || 403106 ||
+|| noisemap || 180204 || 416785 || 149269 || 411294 || 76966 || 398206 ||
+
+
+
 
 == March 22, 2012 ==