[Rich] RICH calibration run

[Marco Mirazita]

Hi all,
today I took a new set of RICH calibration runs, see the logbook entry 
https://logbooks.jlab.org/entry/3637401

At a first look of the data, the only news is that, with respect to the 
latest runs, we have a new dead channel: slot 5, fiber 9, asic 1, 
channel 62.
This channel was dead also during the calibration runs of September, but 
not in those of October.
It's not a big deal, but we should check this channel in the TDC data, 
it might be just a problem in the scaler readout.

Marco