1. 29 Jul 2008Paul Dauncey1 Some sensor noise measurements Paul Dauncey

2. 29 Jul 2008Paul Dauncey 2 Dependence on settings With (solid) and without (dashed) strong desk lamp Higher noise unlikely to be due to light leaks

3. 29 Jul 2008Paul Dauncey 3 PCB jumpers Set J23 (top) and J24 (bottom) to alternate position (left) or remove (right)

4. 29 Jul 2008Paul Dauncey 4 Relook at i12CompBias2 Previously saw a significant change to S/N; noise from comparator? Recheck with a different pixel Use laser to give fixed signal size; vary i12CompBias2 Different colours are different groups of runs Blue was steps of 4TU, pink and yellow 1TU RMS below 1TU

5. 29 Jul 2008Paul Dauncey 5 Signal/Noise ratio Take ratio to get signal/noise Seems like a factor ~3 improvement in S/N…...but could not see a Fe55 signal with a brief run