1. DOM integration meeting
September
Daan van Eijk

2. (personal) News…
From March 2017 onwards, I’ll be working as a postdoctoral fellow for the UW Madison in the U.S.A.
Inspired by my personal wish to live and work in the U.S. for some years, hence my choice for the IceCube Collaboration
Position of KM3NeT DOM integration coordinator is thus vacant!

3. actions from previous meeting
Status of retuned HV on 6 PMTs in DOM67
Daniele will ask Cristiano. News?
DOM Integration review:
Dedicated presentation
White gas:
Then always clean the white gas remnants with the usual isopropylalcohol (it’s all written in the procedure…)

4. Important points from last meeting
Penetrator fiber trays:
Please return the new (blue) penetrator fiber trays to Nikhef after the DOMs are spliced to the VEOC
DOM registration software:
Version 1.7 available:
DOM testing:
To analyse the optical data from a DOM test (i.e. the root files), everyone should use
Google Drive: all documents related to DOM integration are now in:
DET/INT/DOMINT
(There is also DET/INT/DUINT)
Elog: weekly reports, please!

5. DOM components
Red if more than
(30 -6) x 18= 432

6. DOM production status: line types
Amsterdam:
Built: ORCA-DU2 (A-type), ARCA-DU1 (A-type), ARCA-DU2 (B-type)
Finished 18 A-type DOMs for ORCA-DU1
Building C-type DOMs ( ) and in parallel B-type DOMs ( )
Catania:
Finished 18 C-type DOMs for ARCA-DUx
Building D-type ( )
Naples:
Finished 18 D-type DOMs for ARCA-DU3
Building C-type ( )
Erlangen:
Building B-type (73-90)
Type A: CH56C-CH22C
Type B: CH55H-CH21H
Type C: CH55C-CH21C
Type D: CH54H-CH20H

7. DOM production PLanning
I want to understand if you think you can still make this?

8. Open issues
Status Catania DOMs with gel issues -> K40 coincidence results?
REX opening ARCA-DU3 DOMs:
Wrong FW/SW of golden image
Small misalignment upper and lower hemisphere
Conical spring washer wrong way around
Routing of nano beacon cable -> will add to procedure
Coolpaste instead of pads/wrong pads
Gel remnants between hemispheres (white gas!)
REX Nikhef:
Small amount of alcohol on vacuum valve O-rings to prevent screwing damage -> will add to procedure

9. Grounding cable DOM159 before DOM107 after DOM159 after DOM107 before
Check by measuring resistance between 12V ground and penetrator body, should be 10 MOhm!
Please check all your grounding cables in open DOMs and fix if needed!
Please check all your grounding cables in closed DOMs and report number of affected DOMs
Will take a decision on those later
And: please stop closing DOMs, pending a discussion in the SC regarding the DOM grounding scheme itself

10. Ncr/dcr

11. Backup

12. Summary DOM tests per du/18 DOMs
DU2 = ARCA-DU1:
DU3 = ARCA-DU2:
DU4 = ARCA-DU3:
Catania :