DOM INTEGRATION MEETING DAAN VAN EIJK 28 JANUARY 2016

ISSUES AND ACTIONS FROM PREVIOUS MEETING DOM integration halted at optical splice due to AHRS problems This decision affects us (DOM integration teams) heavily But: PMT structures and bottom hemispheres can be fully integrated! News on AHRS status will follow very soon Firmware and embedded software versions to be flashed on CLB’s Revision to flash: rev DOM registration software: Version 1.7 (bug fixes, added Ti bolts and nuts, A/D filter from unique to batch product) to be redistributed What is status in DB of 6 (or 31?) re-tuned PMTs in Naples during DOM test? New test result? 2

CURRENT ITEMS New DOM exploded view (v12) DCR raised (version change request) and new version uploaded Changes: Include Ti bolts and nuts as batch products (STAC request) Change A/D filter from unique product to batch product Ti bolts and nuts: DB: Ti bolt gr 5 M6 x Ti nut gr 5 M6 To do: container map (also change A/D filter to batch!) DOM integration software: Changes incorporated, but need to add columns for bolts and nuts Electrostatic discharge safety (ESD): What is done where? 3

DOM TEST SHEETS New version DOM test sheets DCR raised (version change request) and new version uploaded Changes: Change humidity ranges to 20-50% (was 30-50%) Change ToT range to ns (was ns) Change WR temperature to CLB temperature Add SFP temperature (since we also monitor FPGA temperature) 4

DOM TEMPERATURES 5 Humidity and temperature should come from same sensor: Hence: change WR temperature to CLB temperature

DOM TESTING To analyse the optical data from a DOM test (i.e. the root files), everyone should use DOM test sheets should be stored in DB as attachment Next on my list: ask Cristiano whether the data can be saved as “Test” instead of attachment to DB entry. Alternative (preferred, but not possible yet): data is saved automatically as DOM testing will progress to operating a DOM like a mini-detector. 6

DOM PRODUCTION STATUS: LINE TYPES Amsterdam: type B and type C Request to build type A for first ORCA line. Currently, no A-type SFP’s at Nikhef anymore and type C line DOM production has already started. Catania: type C Naples: type D Erlangen: Commissioning DOM test setup 7 Type A: CH56C-CH22C Type B: CH55H-CH21H Type C: CH55C-CH21C Type D: CH54H-CH20H

DOM PRODUCTION PLANNING 8 Location2014End 2015Spring 2016 End 2016TOTAL Amsterdam (doubling 2015 production rate) 137 Naples Catania Erlangen+3636 Number of DOMs to be built before the end of 2016: = 224 Total number of DOMs produced by the end of 2016: = 289

DOM COMPONENTS I will bring DOM components for 18 DOMs to Erlangen for Collaboration Meeting Penetrators: Testing of 64 PAVE penetrators at Nikhef done: New order of 100 penetrators placed, expected to arrive end of March (but pushing to send them sooner) Naples still needs 7 penetrators to complete 18 DOMs Catania still needs 12 penetrators to complete 18 DOMs But: there are (legal/tax) issues with shipments for PON money components Waiting for more info 9

TODO… Documentation DOM production: List of Applicable Documents Most notably the DOM Integration Procedure In good shape, will rediscuss open questions with Edward/Rene Otherwise, just aesthetics Integration Plan 10

DOM PRODUCTION AMSTERDAM (IN ABSENCE OF RONALD) 11 Script to produce plots from local integration DB can be found in:

BACKUP 12