Changeset 13255

Timestamp:

03/28/12 20:50:00 (13 years ago)

Author:

tbretz

Message:

Changed the resistance of the broken pixels to 390Ohm. Test yesterday night have shown that the amplitude is too low.

File:

• trunk/FACT++/src/feedback.cc (modified) (2 diffs)

trunk/FACT++/src/feedback.cc

@@ -188 +188 @@
             // Pixel  583: 5 31 == 191 (5)
             // Pixel  830: 2  2 ==  66 (4)
-            // Pixel 1401: 6  1 == 193 (4)
+            // Pixel 1401: 6  1 == 193 (5)
 
             // Convert from DAC counts to uA
@@ -215 +215 @@
                 // This is assuming that the broken pixels
                 // have a 1kOhm instead of 390 Ohm serial resistor
-                if (i==66 || i==193)
-                    U *= 2100./R[0];    // (1k)2665 / (390)2400 / (~0)2100
+                if (i==66)
+                    U *= 2400./R[0];    // (1k)2665 / (390)2400 / (~0)2100
                 if (i==191)
-                    U *= 2100./R[1];    // (1k)2794 / (390)2320 / (~0)2100
+                    U *= 2320./R[1];    // (1k)2794 / (390)2320 / (~0)2100
+                if (i==193)
+                    U *= 2320./R[1];    // (1k)2665 / (390)2400 / (~0)2100
 
                 vec[i+BIAS::kNumChannels] += U;