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====== TileCal LED tests ====== | ====== TileCal LED tests ====== | ||
- | Here is a data library with PMT signals with different attenuators. The dynamic rage is from 1 pC to 2000 pC. | + | Here is a data library with PMT signals with different attenuators. |
+ | The dynamic rage is from 1 pC to 2000 pC. The data are collected using R5900 PMT with active dividers and 676 V, and a WLS fibre, Patrick' | ||
+ | with 4 ns pulse width and David' | ||
- | The data are collected using R5900 PMT with active dividers | + | The talk that describes this study is [[https:// |
- | Download | + | Download |
- | To make a plot for 1 trace, use | + | |
<code bash> | <code bash> | ||
wget --no-check-certificate https:// | wget --no-check-certificate https:// | ||
cd pmt_signals_phase2/ | cd pmt_signals_phase2/ | ||
- | python show_trace.py data/ | + | python show_trace.py data/ |
</ | </ | ||
- | We used 1 neutral density filter | + | We used several |
- | Data files with traces are in " | + | Data files with traces are in " |
+ | The file names has a letter " | ||
+ | - D1 NDF16 + 6xNDF50. Reduction of light by 6*2*16. About 0.3 pc -> x1024 | ||
+ | - D2 NDF16 + 5xNDF50 -> x512 | ||
+ | - D3 NDF16 + 4xNDF50 -> x256 | ||
+ | - D4 NDF16 + 3xNDF50 -> x128 | ||
+ | - D5 NDF16 + 2xNDF50 -> x64 | ||
+ | - D6 NDF16 + 1xNDF50 -> x32 | ||
+ | - D7 NDF16 (light reduction by a factor 16) -> x16 | ||
+ | - D8 3xNDF50 -> x8 | ||
+ | - D9 2xNDF50 -> x4 | ||
+ | - D10 1xNDF50 | ||
+ | - D11 - no NDF. About 2000 pC ->0 | ||
- | - D1 NDF16 + 6xNDF50 | + | Figures for 1000 traces are in " |
- | - D2 NDF16 + 5xNDF50 | + | |
- | - D3 NDF16 + 4xNDF50 | + | |
- | - D4 NDF16 + 3xNDF50 | + | |
- | - D5 NDF16 + 2xNDF50 | + | |
- | - D6 NDF16 + 1xNDF50 | + | |
- | - D7 NDF16 | + | |
- | - D8 3xNDF50 | + | |
- | - D9 2xNDF50 | + | |
- | - D10 1xNDF50 | + | |
- | - D11 - no NDF | + | |
- | All figures for 1000 traces are in " | + | {{:noise.png}} |
- | We use a numeric | + | Blue lines show traces before the noise removal, and small grey dots after the noise suppression. |
- | + | ||
- | {{:noise.png}} | + | |
- | Blue lines show traces before the noise, and small grey dots after the noise suppression. The green dots shows the noise in the LED driver. | + | --- // |