Update DHCPD as expected
Make sure new ethernet device is trusted in firewall
Make sure hosts is updated
make sure /home/Embedded/XilinxLinux/ppc_4xx/rfs/aida08/etc/hosts "myserver" points to correct ip address
make sure /MIDAS/linux-ppc_4xx/startup/aidaXX has netvar "TS_Server" pointing to correct ip address
Update the IP in /MIDAS/linux-ppc_4xx/startup/aida*

Rates in all FEEs much higher than before - waveform shows very noisy in all systems. - attachment 1

Good event statistics - attachment 2

DISC in 7 and 3 above 300k

ASIC check load performed.

Good event statistics - attachment 3

Thesholds at 0xa for all FEE

Disc rate now 0 across all FEE


Pulser settings: attachment 4

pulser peak widths -   FEE         width(ch)
                              1             128
                              2             145
                              3             84
                              4             74
                              5             207
                              6             125
                              7             172
                              8             80
                              9             193
                              10            183
                              11            238
                              12            138

Attachments 5 & 6: pulser peaks for all FEE64

16.24: DAQ stop

       slow comparator threshold changed to 0x64

       ASIC check performed

       Alpha run/DAQ start (w/ data transfer enabled) - writing to file 31Oct19/R13

       Merger and TapeService ok - attachments 7 & 8

aida10 (no alpha rate recorded) has a strange pulser peak - looks like double peak?

Pulser terminator checked and OK...

All others "OK" but noise quite bad (see previous entry)

All detectors removed from single and triple AIDA snouts

Empty snouts *and* DSSDs (in boxes) stored in NH office 

Taken 4 FEE64s from CRYRING (the 4 easiest to access)
  41:d8:2b
  41:f6:5a
  41:ee:71
  41:d0:0e

In addition a FEE without rails marked only 20 was found in my old office for 5
- This probably came in a shipment to/for repairs

DSSSD#1 unbiased

DESPEC Platform moved out of beam and gamma platform moved from AIDA
JB works on grounding the original 8 DSSSD#1 FEEs

Connected grounding from ribbon cable drain to adapter PCB
Ground loop connected

AIDA rates unchanged bad still fig 1
Waves fig 2 (p+n 6000-9000)
Waves fig 3 (n+n 8000-10000)
Statistics fig 4

AIDA snout was reconnected and we saw originally a very good reduction in noise from S452 (fig 1)
Occasional bursts of increased rates were noticed, perhaps related to works in S4.

Tape rate at optimal conditions was around 6 MB/s
We still saw some extrinsic noise in waves, two frequencies observed : 1.5 MHz and 100 kHz or so

Figs 2, 3 are at 50 MS/s
Figs 4, 5 are at 5 MS/s

Today the situation has become a lot worse for reasons still unknown.
aida01 shows very strong noise, frequency 125 kHz or so it seems (still at 5 MS/s)
Amplitude 100 mV or so I think

Investigation still underway

Remount snout in S4 (photos to come) 
Alignment with DEGAS OK but a bit short...  DEGAS platform will be brought 31 mm closer to AIDA by rail adjustment

Can mount bPlas booster boards on old ITEM frames and also partly on AIDA snout (isolated)

-

Reconnect all adapter boards and grounds, bias AIDA...

HV OK. We still have a light leak at the snout endcap. "Fixed" with sheet for now

HV leakage currents figure 1

Start AIDA DAQ and check rates.. all seem OK. aida07 is very noisy other p+n good
Notice some issues in aida04, check and ribbon cable slightly loose on one side of adapter
No change to other FEEs.
Aida07 was inspected but nothing obviously wrong

Rates figure 2
Rate spectra figure 3
Wavesform figures 4 (p+n), 5 (n+n)
Pulser peak withs
 p+n figure 6, width ~  70 channels (50 keV)
 n+n figure 7, width ~ 570 channels (400 keV)

n.b. double peak in aida14 is an artifact from an uncleared histogram

DSSDs debiased to allow work on bPlas cabling without tripping DSSDs

BB7 connected to aida07, sitting in a cardboard box

Update Tcl/Tml files in ASIC, ASIC4 and sys.tml frm PJCS email to allow setting per-ASIC polarity on FEE64
Restart MIDAS@8015

Power on all FEEs

Note nnrpi is not responding to ssh... MP investigates if it ahs been unplugged
 No, but a powercycle worked and fixed it

See error: /MIDAS/FEE_ASIC/aida06/ASICs.txt  not found, create the folders

We see some data in the L spectra, and changing the settings from one ASIC seems to work properly

Stopped for CC/MP to determine the which ASICs correspond to p+n and n+n

Follow up: Alpha data overnight or source?

AIDA and the Snout have been remounted in S4

I had a check of the AIDA connectors and all looked good, the kapton PCB connectors were sitting comfortably above the interstage and I saw no stressed/loose connectors.
Multimeter showed no continuity between snout or inter-stage and AIDA ground

We put a single layer of wide black tape inside the end-cap to improve the light seal and minimise reflections

After mounting the snout I managed to bias both DSSDs to 100 V with no issues. I had to raise the DSSD#1 (Ch0) limit to 40 uA because it rises quite high during ramp up (then settles).

It is very hot in S4 (28 C) and the roof is closed for high-radiation experiments, so I expect it to get hotter. DSSD leakage currents were similar to before (20 and 15 uA)

There is also the new Temp and Humidity monitor, which you can view on AnyDesk at 192.168.11.119 (I think), there is a firefox window open already 

The AIDA snout (with single DSSD and plastic) has been mounted in S4 cave again. DSSD was connected to the outer 4 FEEs again.

-160 V Bias applied and DSSD holds voltage with leakage current of around 1.3 uA (was dropping as only biased briefly)

Bias off and FEEs offline again now as day nearly done. MBS testing will be performed shortly, as well as resolution checks.

Fig 1-3: Noise situation at real thresholds (0xa p+n, 0xf n+n)

Fig 4-6: After AM and MP turn off Mesytec Preamps

No difference

> Fig 1-3: Noise situation at real thresholds (0xa p+n, 0xf n+n)
> 
> Fig 4-6: After AM and MP turn off Mesytec Preamps
> 
> No difference

I think there is a difference in the 1.8.W spectra - the 100kHz ripple is reduced significantly when the Mesytec preamps are switched off.

All AIDA modules have been updated to a new firmware 0xd330701 which should fix the merger issues.
A new GSI WR timestamp page has been added to MIDAS - the SYNC rollover is suggested to be 0xe for now.
(VP is working on lowering the rate of WR SYNC infowords)

Tested yesterday and Merger no longer reported major timestamp issues
n.b. aida11 and aida12 didn't update properly until today, this may have caused a few.

MBS relay is currently not functioning (data is confusing) but this is under investigation by VP ASAP.

DSSD Snout was reassembled to install the second bPlast (downstream) 
 (fig 1)

Ribbon cable for aida10 was replaced (DSSD3 upper)

All DSSDs bias again (see fig 2)

Alpha run in progress - channels OK with 2 exceptions  (fig 3)

- aida10 still recording minimal to no counts

- channel 55 aida08 reading lots of data even with comparator 0x64 - corresponds to DSSD1 strip 0 (bottom strip)
  possible ground/cable issue? will check when access possible (fig 4)

Unusual MIDAS error noticed (fig 5) - restart of HTTPd fixed it

11.15 - S4 is currently closed no access

If access possible (should be) plan is

Re-attach ribbon cable braids
Re-attach DSSSD middle wafer rear g/r (LK3)
Re-attach DSSSD ground (LK2?)

See difference in rates, expectation is braid should restore most p+n rates

Once status quo ante achieved explore ASIC settings to identify preamp feedback and shaping time options to stabilise preamp output and optimise signal:noise.

aida12 Peak width =    84.73
aida02 Peak width =   526.68
Attachment 1 - Stats
Attachment 2 - Per FEE Rates
Attachments 3,4 - Waveforms
Attachments 5,6 - Pulser Peaks
Attachment 7 - HV Bias. Leakage current recovered and does not seem to be ramping up

16.00 - Attach LK3 jumpers to aidas 1, 3, 5, 7 (DSSD ground and middle rear g/r)

Attachment 8 - Stats
Attachment 9 - Per FEE Rates
Attachment 10, 11 - Waveforms
Attachment 12, 13 - Pulser Peaks

aida12 Peak width =    78.51
aida02 Peak width =   480.90

No major change, FEES 1-8 are all noisy and FEES 9-16 are quiet
aida01, aida05 waveforms very noticably bad (100 kHz), aida03, aida07 waveforms seem OK


16.45 - Attach LK2, LK4 jumpers to all FEEs (field plane grounding)
No significant changes

Attachment 14 - Stats
Attachment 15 - Per FEE Rates
Attachment 16, 17 - Pulser Peaks
Attachment 18, 19 - Waveforms

aida12 Peak width =    71.28
aida02 Peak width =   458.18

Remove LK3 jumpers 

aida12 Peak width =    71.43 
aida02 Peak width =   496.05


Attachment 20 - Stats
Attachment 21 - Per FEE Rates
Attachment 22, 23 - Pulser Peaks
Attachment 24, 25 - Waveforms

Re-add jumpers - attachments 26-28

aida12 Peak width =    87.42
aida02 Peak width =   572.24

17.45 Directly bias from the p+n FEEs using SHV->BNC->Lemo - attachments 29-33

aida12 Peak width =    87.87
aida02 Peak width =   504.41

The correlation between high 'ADC data item' rate and the noise observed on the corresponding 1.8.W spectrum is not clear *except* for aida01 & aida05 - see also attachments 34-35

ADC data item stats - attachment 36

DSSSD bias & leakage current OK - attachment 37

FEE64 temperatures OK - attachment 38

all system wide checks OK *except aida11 clock fail status 6

8:15am S4 CONTROLLED ACCESS to remove beam plug and check bPlas/AIDA response to beam

Reseat aida05 ribbon cable on adapter board while in...

No difference to rates, aida05 still shows hot asic01
aida14 seems seated OK, still asic02 basically empty

Noise level still high, threshold set to 0x20 (320 keV) which has decent rate

Start forwarding to MBS with 0x20 thresholds

10.12 slow comparator 0x20 -> 0xa

Attachments 1-5

Attachment 6 ADC data items 
             c. 150-180k per FEE64, c. 21Mb to disk

Attachment 7 FEE64 temps OK

Attachment 8 DSSSD bias & leakage currents OK


13.30 system checks

      N.B. aida05 ASIC temp low and pause/resume data rate high

Attachment 9 grafana monitor of DSSSD bias & leakage current & temperature OK

Attachments 10-15 spectra

Attacahments 16-19 system wide checks OK *except* WR error counter

Attachment 20 ADC data items 
             c. 150-180k per FEE64, c. 21Mb to disk

Attachment 21 FEE64 temps OK

Attachment 22 DSSSD bias & leakage currents OK

Attachments 23-29 newMerger stats

20:37 - Begin implantation test, raise threshold to 0x64 just to ensure system is stable

22:26 - No implantation test although we had some brief beam through AIDA.
      - FRS team having difficulty aligning beam still, will work overnight and try to implant tomorrow
        Will keep DAQ on 0x64 to eliminate deadtime issues for implantation

This looks like the Options not the ASIC data. That will be in the CONTENTS file of the FEE64 named directory within the dated EXPERIMENT directory. Looks like the latest is at /MIDAS/DB/EXPERIMENTS/AIDA/2019Oct31-13.24.23/aida10 ?

A quick look at this file and it looks normal , not all 0xad ? 

Looked at the Options file in the /MIDAS/DB/EXPERIMENTS/AIDA/Options.BACKUPCorrupt/aida10 and the worst bit is the name of the Data Acquistion program.  That could well cause you problems with readout as it won't understand some of the new data.

Hope this helps.

Hi, see the attached files in the original comment. I think the BACKUPCorrupt is quite old now.

The Options data gets corrupted and for example the ASIC folder gets set to 'undefined' which I think is why the ASIC data loads incorrectly.