ELOG DESPEC

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

DESPEC

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Sat Feb 6 10:45:55 2021

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> 01.02.2021 - Four new sets of PSU, HDMI & Ethernet cables were ran from the DESPEC rack to the AIDA frame, in preparation for 4 new FEE64s.
> A new 7 port USB hub has also been placed for the last few serial connections.
> 
> For the first experiment this year, we will run with a narrow AIDA configuration as in 2020. (12 FEEs)
> 
> The system has been powered up and biased successfully. To be monitored over the next few days.
> 
> A lot of the FEE serial monitors are missing, I think a hub has been disconnected from nnrpi1. This will be investigated on Wednesday.
> The rack will also be grounded properly on Wednesday to investigate the impact on the noise.
> 
> A single new water line (feed and return) needs to be installed for the 16th FEE, this will be done once the hose is found/ordered...
> 
> The 4 new FEE64s will be mounted and powered up at some point to obtain the MAC addresses, and possibly check MIDAS merging 16 FEE64s.
> 
> Waveform data will be taken wednesday before & after grounding the rack to see noise situation currently

05.02.2021 -
The serial hub was disconnected and was reconnected. Unfortunately nnrpi1 seems to have gone offline so cannot be used still. Will try to reboot pi when possible.

The hose has arrived and the water line will be prepared in my office mid next week.

All the leaf MACBs have been updated to the latest firmware (MACB_GSI_Simple.jed) and set to mode '0'. A fourth leaf MACB is now in the NIM crate but has no HDMI connections in or out yet.
All 12 FEEs powered up and have no WR issues (one MABC was first set to wrong mode, but was fixed)

A new tape server to support unmerged waveform readout has been loaded and documented by VP. This will largely be unused but the option is there and will be tested.

The rack was grounded to the platform floor with a large cable to potentially improve situation. Waveforms before (fig 1-2) and after (fig 3-4) attached.

There will be a DESPEC Dry Run next week Mon-Tue.

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