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Table of Contents
Broken Bonds
Noise data available offline
All runs with VFS400_NOTP settings taken in 2008 and 2009 were processed using STNZSMonitor. Root files containing noise data for channels of the following TELL1 boards is available:
- TELL1's: 2, 3, 5, 6, 10, 35, 46. See
lhcb@ckm:~/noise/VFS400_NOTP/rootFiles
There is a directory for each year data was taken. To create selections create a new directory containing symbolic links to the root files, e.g: links_ALL. The script createSymLinks.sh might help.
Noise plots
Plots were generated for the following sectors affected by broken bonds:
| TELL1 | Sector | first observed | Taken out | noise pattern sector 2008 | noise distributions / noise vs. time 2008 | noise pattern sector 2009 | noise distributions / noise vs. time 2009 |
| plot (y/n) | plots for broken channels | plot (y/n) | plots for broken channels | ||||
| 2 | 3 | June 08 | June 08 | y | - | y | - |
| 3 | 3 | Nov 08 | still installed | y | 1870-2048 | y | 1860-2048 |
| 5 | 1 | June 08 | Nov 08 | y | 512-730 | y | - |
| 5 | 2 | June 08 | Nov 08 | y | 1024-1535 | y | - |
| 6 | 1 | June 08 | Nov 08 | y | 512-660 | y | - |
| 6 | 2 | June 08 | Nov 08 | y | 1024-1280 | y | 1095, 1426 |
| 10 | 3 | Apr 09 | still installed | y | - | y | 1620-1660 |
| 35 | 5 | 23.10.2008 | still installed | y | 2560-2700 | y | 2560-2700 |
| 46 | 4 | June 08 | June 09 | y | 2320-2560 | y | 2300-2560 |
noise pattern: noise as a function of the channel number (a plot for each run available) plots for broken channels: for all channels having bonds on the innermost bond row two plots (noise distribution, noise as a function of the time) were generated in the range indicated in the table. Files in:
lhcb@ckm:~/noise/VFS400_NOTP/rootFiles/2008
lhcb@ckm:~/noise/VFS400_NOTP/rootFiles/2009
- Noise Plots - How to generate noise plots.
Count low noise channels
The plot shows the number of low noise channels as a funtion of the run number. All NZS400_NOTP-data available was taken into account.
- Some plots for all the NZS files 0f 08 & 09 are available in directory:
lhcb@ckm:~/noise/VFS400_NOTP/plots/nBadChannelsAllFiles08And09>
- Some plots for data taken with high voltage are available in directory:
lhcb@ckm:~/noise/VFS400_NOTP/links_hvOn/nBadChannels>
- Count low noise channels - How to create the plots mentioned above.
