Daan van Eijk December 2 2016 actions from previousprevious meeting Daniele Status of retuned HV on 6 PMTs in DOM67 S end instructions of how to obtain the advertised white gas to ID: 530525
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Slide1
DOM integration meeting
Daan van Eijk
December
2
2016Slide2
actions from previous-previous meeting
Daniele:
Status of retuned HV on 6 PMTs in DOM67S
end instructions of how to obtain the advertised white gas (to Emanuele in particular!)
S
end
pictures of optional markings on glass and bottom support structure when gluing the piezo Emanuele:Send data sheet to DvE for the ‘nafta’ that was bought as ‘white gas’ Was the Eurol white gas ordered finally???Oleg:Perform (yet another) gel hardening test on the material of the tube itself
2Slide3
actions from previous meeting
None!!!
3Slide4
Integration reminder document
I placed it on the Indico
again for completeness…Grounding cable is no longer mounted!!
!Use the new DOM integration software, v1.8Step 25 (preparation of components): use the new fiber tray routing procedure (according to KM3NeT_INT_2014_007_DOM_Fibre_Tray_Routing_Procedure_v4
)
Step B.4: apply
kapton tape on the unsoldered test connector J4 of the power boardStep G.6 and I.6: pay attention to the orientation of the reflector ringsEthanol is not used as cleaning agent anymore, only isopropanolStep A.2: use white gas instead of white spirit to clean the mushroom. White gas to use: Eurol cleaning spirit 100/140 (don’t let that name confuse you, this is something different than ‘normal’ white spirit!!!)All screw torques have been defined and you’re expected to adhere to them. There is one exception in step B.10: it’s impossible to reach this screw with a torque screwdriver.We don’t use calibrated PMTs anymore:Use the latest version of the Get_PMT_HV_settings.py script (http://svn.km3net.de/integration/PMT_HV_PROMiS_script/Get_PMT_HV_settings.py) to obtain the uncalibrated HV values from the KM3NeT DB in the DOM acceptance test
4Slide5
DOM production Planning and status
5
Current DOM count 2016: 53 + 18 + 18 + 2 = 91
Total current DOM count: 19 (2014) + 46 (2015) + 91 (2016) = 156
realized
plannedSlide6
DOM production Planning and status
6
Erlangen’s 2016 DOM production target was scaled down by 18 DOMs
Catania and Naples will build same lines as small production in 2015: 51 DOMs instead of 54 by end of 2016
Still to close: 19 (
Ams
) + 2x(18+15) (Cat, Nap)+ 16 (Erl) + 1 (Ath) = 102 DOMs(And 102+91=193)realized
plannedSlide7
DOM production Planning and status
7
DOM production 2017:
any objections?
realized
plannedSlide8
Other items (1)
DOM integration halted after step L in procedure because of:
Missing BOOTREQUEST for deployed DOMs -> hardware problem???Protruding soldering on power board causing problems at DOM testing (more later)
Nanobeacon cables non-conformity (more later)Can we continue gelling tested lower hemispheres?
(I think we can…)
QA/QC visit/audit of Nikhef integration site:
KM3NeT_QA_2016_233-DOM_Integration_Site_Inspection_Nikhef_2810161Next integration site to be visited: Naples, before the DOM review and STAC visitQuick question to Daniele: are you using the DOM integration software?Request to return inventory of DOM components available for 2017 production at all integration sites before end of 20168Slide9
Other items (2)
Rene: step B.3 and B.5 are not very convenient:by
putting the gap pad on the mushroom, you can’t easily see the orientation of the power board. You NEED to look at the procedure picture, instead of at the mushroom and board itselfWhat do you think?
DOM
opening procedure
KM3NeT_DOM_2016_010-DOM_Opening_Procedure_v1
So far I have received comments from Marco onlyNo comments whatsoever???9Slide10
Malfunctioning electronics boards (1)
General note:
I’ve noticed that malfunctioning electronic boards are replaced and put aside… Please, write an NCR right away, inform the relevant people - in particular Diego as coordinator Electronics - and send the board back to him for diagnosis and possible repair
This includes: piezo’s, nanobeacon + cable, CLB,
powerboard
, octopus boards
10Slide11
Malfunctioning electronics boards (2)
Nanobeacon + cable: NCR 2016_249 (please read!)
The connector of the nanobeacon cables is unreliableSolution:
For 2017 DOM production, send all nanobeacon + nanobeacon
cables back to Valencia, where the cables will be repaired
Advantage: possibility to correctly redistribute these components matching 2017 DOM production
11Slide12
Malfunctioning electronics boards (3)
Protruding soldering on power boards (1)All power boards of version 2, 4 and 5 have soldering in the openings of (deprecated) connector J4
Action taken two months ago:
Might not be enough. Can your local Electronics Department remove the soldering altogether using soldering tool and suction?
If not possible, should we send those boards back to Diego for the Electronics team to repair?
12Slide13
Malfunctioning electronics boards (4)
Protruding soldering on power boards (2)Amsterdam:3.4.3.5/V2-3/5.266: NCR 2016_138
DOM129, CLB: 3.4.3.2/V2-2-1/2.65, PB: 3.4.3.5/V2-3/5.524: NCR 2016_244, clock reset, not confirmed yet it’s the power boardDOM142, CLB: 3.4.3.2/V2-2-1/2.46, PB: 3.4.3.5/V2-3/1.96: NCR 2016_243,
clock reset, not confirmed yet it’s the power boardErlangen:DOM76, CLB 3.4.3.2/V2-2-1/2.91, PB 3.4.3.5/V2-3/4.222: NCR 2016_203. News 23/11/2016: checking the CLB+PB on the table: still
malfunctioning -> it was not the soldering!
Replace PB -> OK. Integrate new PB (with
kapton!!!). ‘Gap pad was pushed, not punctured’. New PB serial unknown yet. Oleg?DOM88, CLB 3.4.3.2/V2-2-1/2.390, PB 3.4.3.5/V2-3/4.178: NCR 2016_238. News 23/11/2016: checking the CLB+PB on the table -> OK. Integrate the original CLB+PB (with kapton!!!). ‘Gap pad was pushed, not punctured’.Catania: none!Naples:3.4.3.5/V2-3/5.481: no NCR yet, current absorption more than usual (about 120mA higher)3.4.3.5/V2-3/5.480: no NCR yet, "an issue with the finite state machine (FSM) in the Slow Control GUI"3.4.3.5/V2-3/5.518: no NCR yet, "an issue with the FSM in the Slow Control GUI"13Slide14
Malfunctioning electronics boards (5)
Protruding soldering on power boards (3): Diego
14
DvE
: Also affected!!!
DvE
: Also affected!!!DvE: but some individual boards do, somehow…Slide15
Finally
Gel status DOM201 in CataniaSee
Emanuele’s presentationReview in two weeks!A
re you prepared?Did you read everything at https
://indico.cern.ch/event/588789
/
?15