Changes between Version 4 and Version 5 of GPC1_BrightStarAstrometry_SW_LH_scan

Timestamp:

Apr 26, 2011, 2:49:56 PM (15 years ago)

Author:

watersc1

Comment:

--

GPC1_BrightStarAstrometry_SW_LH_scan

@@ -13 +13 @@
 
 
-There does appear to be a small change in the images due to this voltage change.  OTA36 row 6, and OTA47 row 5 and 6 show bright bands in the top ~6 pixels:
+There does appear to be a small change in the images due to this voltage change.  OTA36 row 6, and OTA47 row 5 and 6 show bright bands in the top ~6 pixels.  The following image shows OTA36/row6 with the default settings (top) and with SW_H changed by -1.0V (mt19, bottom):
 
 [[Image(mt_difference.png,1024px)]]
 
+The raw images show that this is not a result of the nonlinearity correction, as it is present before this is applied.  It also is present in all rows of the detector, but is shorter on the other rows, and falls into previously masked regions.  Image is of OTA36/xy66
+
+[[Image(top_noise.png)]]
 
  * [wiki:GPC_BrightStarAstrometry_Microtest Return]