Engineering meeting on ProtoDUNE Single phase

26 Apr 2016, 08:00 → 29 Apr 2016, 18:00 Europe/Zurich

3179 (CERN)

Jack Fowler Jr (Duke University (US)), Maria Chamizo Llatas (State University of New York (US)), Marzio Nessi (CERN)

Wednesday 27 April

08:30 → 12:00 Visit to EHN1, ICARUS, bdg 182

13:30 → 15:30 Cryogenic piping

• Cryogenic piping will be installed before the TPC. This will be installed in parallel with the installation of the TPC support structure.
• Upper manifolds will be installed and support from the cryostat and feed thrus.
• Floor manifolds will be installed in two parts. The vertical members will be installed from outside down through their ports. The lower manifolds will be attached and welded from the floor.
• Piping supports to the north wall.
• Piping supports to the floor.

NP-04_3d_view_internal_pipes-Installation_sequence_w_notes_Apr_27_2016.pdf

15:30 → 17:30 TPC support

• Installation of the support rails inside the cryostat.
• Installation of the support rails outside of cryostat
• Details of the rail from the SAS to the clean room
• Requirements to the warm structure, accuracy of feed thrus, height accuracy and survey, support of crossing tubes, loads translated to warm structure.

TPC support installation.pdf

TPC support installation.pptx

Thursday 28 April

08:30 → 12:00 APA, PD integration, CE integration, integrated test enclosure

• Packaging estimate.
• Handling equipment.
• Access needed and plans.
• Cabling inside cryostat.
• Cabling during integrated test.
• Plans to store extra cables from CE boxes before the APA is installed.
• Cable routing for integrated test.
• Translation and transfer tooling.
• Protection for the wire plans.
• Clean room space and access.
• Test equipment.
• Scaffolding/scissor lift/other tools for populating the APA with CE / PD / cabling in the clean room
• Location of 2 APA / 3 APAs inside the clean room.
• Location of platform for beam commissioning / beam instrumentation.
• Method of cabling the feed thru flanges during installation.

clean-room.pdf

clean-room.pptx

Proto-DUNE PD Installation and Cabling.pdf

Proto-DUNE PD Installation and Cabling.pptx

13:30 → 15:00 Integrated test enclosure discussion

• Test enclosure – Assume this will be a Faraday cage, cold test box and light tight box.
• Location of test enclosure inside clean room. Proximity to cryostat.
• How it is opened and closed around the APA.
• Need of temperature, humidity sensor inside Faraday cage to measure dew point, line for dry air. Assume there will be dry air purge before cooldown to prevent frost on warmup.
• How to bring gas Nitrogen inside clean room? Assume cold Nitrogen gas will be used for cooldown. Rate of cooldown and warmup and how to control.

cold_box.pdf

cold_box.pptx

15:00 → 18:00 CPA

• Packaging estimate.
• Handling equipment (including transport from SAS to working position).
• Method of assembly. Will we hang and assemble vertically or assemble horizontal and lift the column onto the rail?
• Electrical connections. Access required inside cryostat. Equipment required in the clean room to test connections.
• Any temporary structure or support necessary and the removal.
• Access needed and plans.
• Component weights and size
• Need for measurement of electrical connections after installation inside cryostat?

Friday 29 April

08:30 → 12:00 Field cage top and bottom

• Packaging estimate.
• Handling equipment.
• Temporary structure and removal.
• Subassembly required with ground planes.
• Mounting onto CPA.
• Access needed and plans.
• Top is 3.6 m full assembly and bottom is 2.5 reduced assembly to mount on vertical CPA panel.
• Deploy panels inside cryostat. Top panel – lifting hardware, latching devices, electrical, removal of hardware. Bottom panel – lowering hardware, addition of 1.1 m section, electrical, access platform on top of panel, removal of hardware.
• Electrical connections.
• Any test of electrical connections after installation inside the cryostat?

13:30 → 15:00 Trial Assembly Ash River

15:00 → 17:00 Field cage end walls

• Packaging estimate.
• Handling equipment.
• Subassembly required.
• Electrical connections. In clean room and inside the cryostat?
• Temporary structure and removal.
• Access needed and plans.
• Translation inside cryostat and from install rails (1.5 and 2.5) to support rails (1, 2 and 3).