M. Circella, Technical and Planning issues, KM3NeT SC meeting, 29 July In this talk Preparation of mass construction (including DOM and DU integration) DU-2 Procurement of components Documents for STAC Review of the project

M. Circella, Technical and Planning issues, KM3NeT SC meeting, 29 July Preparation of mass construction PMTs: 15,000 available – 7,500 being equipped (base installed, coating, test) in Naples – 7,500 shipped to Erlangen (test scenario to be defined) DOM/DU integration sites:  4 DOM integration sites (Catania, Naples, Erlangen, Nikhef) preparing to mass production – target speed is 3-5 DOMs/week/site – each site committed to 120 DOMs  Strasbourg expected to join DOM integration later (people available, applying for funds)  3 DU integration sites in preparation: Nikhef, LNS and Naples  3 deployment preparation sites in preparation: CPPM, LNS and Naples Important points:  Request for funds for 6 LOMs and 4 acoustic release frames ongoing in Italy (in order to sustain installation of batches of DUs)  Transportation (of components, DOMs and DUs) to be organized by all involved institutes until this is centrally supported (Common Fund)

M. Circella, Technical and Planning issues, KM3NeT SC meeting, 29 July 2015 DU-2 (general remarks) 3 Infrastructure in KM3NeT-It ready for connection (new CTF and JB installed) PPM-DU left disconnected at end of operation (additional motivation to go for deployment of DU-1&2!) Integration plan defined DOMs built in Nikhef, Naples, Catania Base module built in Bari Integration of DOMs to VEOC started at Nikhef, completed in Naples Integration of base module to VEOC and all following actions (tests, arrangement on LOM, etc.) to be done in Naples Schedule slipping (see later): first 3 DOMs mounted with VEOC, the rest awaiting for VEOC upgrade Aiming for a deployment in fall (from second half of October until mid-November) Review to be launched in early September From now on: alternate-weekly meeting on DU-1 and DU-2 (next one will be on August 5) DU-integration mailing list set up (I will distribute instructions for subscription soon after this meeting)

M. Circella, Technical and Planning issues, KM3NeT SC meeting, 29 July 2015 Preparation of DU-2 4 Availability of components: DOMs – full set in production at NIKHEF + 3 to be built in Catania + 3 in Naples (progressing well, see Daan’s report) VEOC – available but needs modification to BEOC (see Edward’s report) buoy - ordered mechanical parts for buoy – to be produced ropes and mechanical parts for DU – can be procured quickly anchor – available, under finalization base container – in preparation (in aluminum!) – see next slide equipment for base container – available (except BCI, which has been ordered) Availability of deployment tools: LOM and acoustic release – available acoustic release frame – not available steel ropes for acoustic release and acoustic release controller – presumably available (to be confirmed) Availability of integration and test tools: LOM loader – available welding machine – available testing equipment – available dark room – very simplified layout considered (DU arranged on transportation palette and shielded from light) dark rom calibration tools – available shore station/DAQ test station – in preparation Field test equipment – to be defined (can it be the same as for DU-1?)

M. Circella, Technical and Planning issues, KM3NeT SC meeting, 29 July 2015 Base container of DU-2 5 Penetrator (dummy case) and mockup of endcap of BEOC used for tests of the screws Internal frame Front ViewRear View Flange equipped with all needed connectors and (dummy) penetrator for pressure test Connector for jumper Connector for hydrophone Dummy penetrator and dummy BEOC endcap Recent news: Flange machined and equipped with connectors and (dmmy) penetrator for pressure test Pressure test of sealed container ongoing (today!) Cases of penetrators produced, now being equipped with feedthrough in USA

M. Circella, Technical and Planning issues, KM3NeT SC meeting, 29 July 2015 DU-2 (tentative) schedule 6 VEOC upgrade required for proceeding with integration of DOMs with VEOC Penetrator (feedthrough) to be implemented by Pave Technology (to be tested later by KM3NeT)

M. Circella, Technical and Planning issues, KM3NeT SC meeting, 29 July Procurement of components Decided/ongoing: BCI (BPS-CLB Interface for base modules) – 35 (enough for full Phase-1) AHRS – 190 (enough for completing Phase-1) Power-boards – 350 (enough for completing Phase-1) VEOC – new round of pre-production for 5 cables DC/DC converters for the 5 VEOCs (estimated delivery: October) – should we start by building one VEOC ORCA-style with the existing DC/DC of Nikhef? SFP receivers for shore stations in KM3NeT-Fr and KM3NeT-It Note added during the meeting: SFPs and optical components for base modules of KM3NeT-Fr to be sorted out Please inform me of ANY new order of components, possibly in advance if it requires more than 10 kEuro (they need to be accounted for in the table cost of the experiment)

M. Circella, Technical and Planning issues, KM3NeT SC meeting, 29 July Documents for STAC This is the list of documents requested from STAC earlier this year: a)The work breakdown structure (WBS) (priority 1) b)The top level cost estimate (priority 2) c)The project schedule that shows a roll up of the major tasks (priority 1) d)A system block diagram with all the major at-sea and shore-side subsystems (priority 1 if easily available, priority 2 otherwise) e)The quality assurance documents and periodic reports (priority 1) f)The risk management documents a)The reliability analysis, the risk register and the periodic reports are priority 1 b)The FMECA, FTA are priority 2 g)Manufacturing documents and procedures (priority 2) h)Overall system test plan (priority 1) and procedures (priority 2) i)Results of any previous technical reviews and PRRs (priority 1) This is what we provided or promised (in yellow fonts, together with further requests): a)document provided b)no document provided – reference done to presentations at previous meetings c)no document provided - milestones discussed at the meeting d)document with system block diagram promised for September e)NCR/DCR list provided, statistics of QAQC forms shown at meeting – their counter-request was to see how the recent infrastructure problems (fault on node in KM3NeT-Fr, corrosion on JB of KM3NeT-It) are followed up in our QAQC system f)sample of reliability studies document (CLB) provided – their counter-request was to see an executive summary of all these studies g)document on manufacturing and test procedures promised for September h)qualification plan promised for September i)reports on PRR of electronics and review of DU-1 provided, with the promise to send all new documents concerning review of the project

M. Circella, Technical and Planning issues, KM3NeT SC meeting, 29 July Review of the project Finalized: PMTsinternal review – concluded June 2013 DAQ systemexternal review – meeting with reviewers: 7 August 2014 – report delivered optical systemexternal review – meeting with reviewers: 28 October 2014 – report delivered Being finalized: electronicsexternal review – meeting with reviewers: 9-10 September 2014 – reply to report from reviewers prepared DU-1internal review – meeting with reviewers: 9 April 2015 – all actions being addressed Started: VEOC (by Teledyne/ODI)Started in mid-June In preparation: optical module integration (internal review) Target starting date: September DU-2 mechanics and deployment (internal review)Target starting date: September power system (external review) Target starting date: (late) summer a) calibration (external review) Target starting date: (late) summer a) string mechanics & deployment (external review)Target starting date: late summer – fall b) Remarks: a) Including experience in construction of DU-1 b) Including experience from installation of DU-1 and/or DU-2