Photon Detector Consor-um Weekly Mee-ng January 15, 2019 Dave - - PowerPoint PPT Presentation

Photon Detector Consor-um Weekly Mee-ng

January 15, 2019 Dave Warner

Outline

• APA ground screen connec-ons
• Integra-on/installa-on discussions
• Implica-ons for PD produc-on
• Upcoming Technical Milestones

Mesh Panel Fixing (4” Frame)

Head end L/H + R/H (2 off of each) 5 panel types Foot end L/H + R/H (2 off of each) Centre panels all iden-cal (12 off)

Fixing bracket loca-ons. Fixing bracket loca-ons. LiV plates and nut plate widths reduced to 79.5mm

Sec-on Through Outer Tube

Mesh frame fixing

• bracket. 1.6mm stainless
• steel. Very low profile to

allow passage of cables. Nut plates, not used for mesh frame fixing, they are part of the APA frame design. They are ½” thick Mesh frame 20mm x 10mm x 1.5mm 8.3mm

Dimension from top of the nut plates to the top surface of the mesh frame.

View of PD cable rou-ng without mesh window View of PD cable rou-ng with mesh window

PD Cable rou,ng along the APA side tube

Side tube Rib Foot tube Bundle of 5 x 6.75mm diameter PD cables

PD Integra-on

• ITF (APA horizontal)?

– In Rapid City? – At SURF?

• “Underground ITF”

– In SAS or cleanroom between detector caverns (APA possibly ver-cal like ProtoDUNE) – In cavern 2 during detector 1 assembly, not clear what happens for second SP detector

PD Module Fabrica-on & Integra-on

• Current plan calls for first produc-on PDs arriving

(and integra-on beginning at ITF) in early 2022

• Probably need to consider PD produc-on

beginning mid 2021.

• N.B.: Some number of final-design PDs will be

needed early for PD/APA installa-on tests

• Assume 2 APAs per week
• 20 PDs per week
• 18 months per FD cryostat

PD Cables/Connectors

• APA frame construc-on will begin January

2021

• PD cables and connectors will need to begin

fabrica-on in mid-2020

• Cable tes-ng/cer-fica-on is clearly a cri-cal

path item for the PD consor-um

– Beginning at CSU – Supported in ICEBERG, other sites

Interface Documents

• Two important workshops associated with upcoming

collabora-on mee-ng:

• Integra-on/Installa-on Workshop: Jan 24-25 @ CERN
• Compu-ng & SoVware Interfaces Workshop: Jan 30 @

CERN

• Coming out of these workshops, we will need to

update our interface documents and place them under signature control

• Process needs to be completed on -me scale of final TDR

submission

Sub-system Cost Estimates

• I have been promising an example that we

can use as a template to help “standardize”

• ur cost estimates for the next round of

review

• Hoped to have this ready for today, but it will require

another week to finalize

• The required time scale for updated cost

estimates is end-of-February

• NCG will ini-ate next round of review aVer the RRB

mee-ng in March

Schedule

• Big question is how to converge on updated

dates for the start of installation of the first two far detectors

• LBNF is expected to converge on dates as part of its reconcilia-on
• f the 90% final conven-onal facili-es designs in April/May
• We expect to have a discussion at the upcoming collabora-on

mee-ng on how we will handle this issue in the TDR

• In the meantime, will continue to work with

consortia individually on further developing the global schedule

Reviews

• Need to schedule design reviews for each sub-

system between now and July TDR submission date

• Currently,
• CE Mechanicals: Feb 11-12 @ BNL
• APA: March 27-28 @ PSL (TBC)
• Engineering team has been developing safety

review requirements in context of APA review – will iterate with each consortia on its requirements

• PD 60% review likely to occur in May 2019!!!