Beam Wire chambers¶
We have two chambers used to monitor the secondary beam.
Almost everything at Wire Chambers applies to the beam chambers.
- placed just downstream of LArIAT in a break in the beam pipe
- HV setting:
- Controller: ftbfwc02
- placed just before the NOvA target in MC7
- HV setting:
- Controller: ftbfwc07
These run using the FTBF wire chamber daq which can be accessed from one of the FTBF machines
ssh -XY firstname.lastname@example.org cd /home/tmp_forJason/EDIT2018/MWPC-MCenter (location subject to change) ./daq-mcenter_<target || upstream>.py data is saved to /home/tmp_forJason/EDIT2018/MWPC-MCenter/data
Monitoring and Plotting¶
There is an on/near-line monitoring script along with an offline version of which are also housed on the FTBF machines (below I use ftbf-cr-02 but any of them should work).
You need to have kinit rights to user extbeams (I need to make this more easily accessible -ATCS).
To run the offline script:
ssh -XY email@example.com cd mtestwire/ source py3/bin/activate python plot_wires_offline.py /home/tmp_forJason/EDIT2018/MWPC-MCenter/data/filename.dat
To run the monitoring script with the DAQ running:
ssh -XY firstname.lastname@example.org cd mtestwire/ source py3/bin/activate python plot_wires_nearline.py /home/tmp_forJason/EDIT2018/MWPC-MCenter/data/filename (*note there is no .dat ending)
Both scripts output images to: /home/nfs/extbeams/mtestwire/images