TODO

MAIN ISSUE OF THE DAQ[edit | edit source]

The charge measured with random trigger is above 10fC, up to 50 fC. This is due to few channels with very high noise:

The following channel are not used in GRAAL: (chip,channel) --> (43,3), (46,26), (73,3), (87,45) and they are different from the one shown above

3/4 of these channels (ch. 3 and 45) are located on the edge of the anode-FEB connector (see L2_FEB_pinout).

Charge decrease as the threshold increases -> due to some error in setting the threshold. Now if the thr_sigma*n_sigma < 1, threshold is increased by 1.

The reconstruction is too slow with event.C -> lSolved by changing the arrays to vectors.
FEB from 0 to 15 are noisy at channel 62 -> removed the channel and use as new TP channel
Peaking background on FEB=6 && channel = 62 --> removed the channel
Only 33% of the hits has a cluster on both sides of the L2, while in principle it should be 100% --> An external pulse has been installed and short data taking (1 hour) are proposed WITHOUT restart of the ROC
The tracking efficiency is between 50 and 70%. It has to be understood the source of the data loss --> fixed. at 2020.01.20 is about 92 %
The communication of 12 chip with the ROC is not properly working --> signal cables has to be changed in order to remove the 8b/10b errors as much as possible
Inconsistency between RUN 134 and RUN 139 has to be understood --> test has to be proposed --> due to gas problem
FEB_label 2 and 21 dont have calibration. Right now we are using random calibration for EFINE and TFINE --> fixed
Incongruity in the number of triggers and checks -> check the trigger system -> checked in RUN

This is due to missing calibration files (raw data should be present):

FEB 30 (calibration files available) has been restored
FEB 2 (calibration files not available) will be provided soon with a temporary mock-up calibration (based on TP scan performed with GUFI)