Two 60% reviews down, one more to go: preparing for the March 10/11 - - PowerPoint PPT Presentation

Two 60% reviews down, one more to go: preparing for the March 10/11 review

Marco Verzocchi Fermilab 10 February 2020

Preliminary Design Reviews

• Internal DUNE reviews (i.e. not required by funding agencies or

LBNC) to monitor the progress of the project

• Review charge and review team decided by review committee (P.

Farthouat, S. Kettel, S. Zeller)

• We had a review of the mechanical aspects in February 2019 (see

agenda in Indico, final report)

• We had a review of the ASICs and the FEMBs for DUNE last week at

CERN (see agenda in Indico)

• Preliminary report available to TPC electronics management and

selected participants, final report will become available by the end of the month

• The committee investigated very extensively our designs, made a lot of

comments, number and quality of questions somehow reflects how advanced the various designs are

• The committee thinks we will be able to submit next round of ASIC

prototypes by June

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The next review

• We will have the third (and final) preliminary design review at

Brookhaven on March 10 and 11

• Topics to be discussed: Warm Interface Electronics Crate and

system aspects

• Expect to have a full day of presentations on Tuesday 10 March,

with possibly another 2-3 hours of presentations and question and answers on Wednesday 11 March

• We will have the closeout in the afternoon of Wednesday 11, but

review participants should not plan on leaving before 5:30pm

• This may make it difficult to fly back to Chicago on Wednesday
• Last flights from LGA: UA @ 9pm, AA @10pm, DL @ 7:45pm
• Participants (reviewers) who are not BNL users need to start the

paperwork to access BNL as soon as possible

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Topics under review (i)

• Grounding scheme
• Need writeup of grounding rules and need diagram demonstrating

that we are respecting the grounding rules, discuss experience from ProtoDUNE

• Input from Hucheng Chen, Bo Yu, Linda Bagby, Terri Shaw
• Documentation: grounding rules, diagram of grounding connections
• Warm interface electronics crate introduction
• Purposes, constraints from grounding, discuss also the CE flange

design and the filter cards for bias voltages

• Input from Hucheng Chen, Bo Yu, Matt Worcester
• Documentation: schematics, bill of material, and Gerber file for the filter

card, mechanical design of the CE flange, schematics, bill of material and Gerber file for the PCB attached to the CE flange

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Topics under review (ii)

• Experience with the WIEC, WIB, and PTC in ProtoDUNE
• Includes hardware, firmware, and software
• Input from Matt Worcester, Jack Fried, Maura Spany, Jake Calcutt,

Martin Tzanov, David Rivera

• Documentation: description of functionality of current firmware and

software; block diagram, schematics, bill of materials, and Gerber files for the ProtoDUNE WIB, PTC, and PTB

• Intermediate WIB prototype hardware
• Discuss motivation for changes from ProtoDUNE design, describe

design and functionality tests performed so far

• Input from Jack Fried, Hucheng Chen
• Documentation: block diagram, schematics, bill of materials, and

Gerber files for the intermediate WIB

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Topics under review (iii)

• Intermediate WIB prototype firmware and software
• Present development plan for the firmware and the software

required for using the intermediate WIB prototype for system tests

• f the new FEMBs with ColdADC/COLDATA or CRYO
• Contributors: Josh Klein, Vladimir Tischchenko
• Documentation: firmware requirements document, interface document

with DAQ consortium

• DUNE WIB hardware requirements
• Present the additional changes that are required for the final WIB

for DUNE

• Input from Vladimir Tischchenko, Hucheng Chen, Jack Fried, Marco

Verzocchi

• Documentation: hardware requirement document

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Topics under review (iv)

• DUNE WIB firmware and software requirements
• Present development plan for the additional firmware and software

requirements that are needed in the longer term (second Run of ProtoDUNE, system test stands, DUNE)

• Contributors: Josh Klein, Vladimir Tischchenko
• Documentation: firmware requirements document, interface document

with DAQ consortium

• DUNE WIB firmware architecture and development plans
• Discuss how the WIB firmware should be organized to allow for

firmware development at multiple sites (firmware blocks, interfaces)

• Input from ??
• Documentation: ??

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Topics under review (v)

• Design of the bias voltage and low voltage power supply plant and of

the cable plant

• Present the design of the cable and supplies plants, discussing

multiple options if needed

• Contributors: Marco Verzocchi, Hucheng Chen, Linda Bagby, Shekhar

Mishra

• Documentation: diagram of the cable plant, including detailed list of all the

connections (also for fibers), description of individual cables

• Interfaces to slow controls and interlocks
• Present a preliminary plan for how slow controls and interlocks could

be impletemented, inclusing a discussion of the constraints on the system design

• Input from Marco Verzocchi, Linda Bagby, Shekhar Mishra
• Documentation: list of quantities to be monitored and controlled, list of

channels requiring hardware interlocks, impact on design from the plans for interlocks, interface documents with the DAQ and with LBNF

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Topics under review (vi)

• Timeline for completing the design, production planning, and

quality controls

• Present timeline for the completion of the design, in view of the

constraints from the second run of ProtoDUNE, discuss plans for production and quality control

• Evolution of the PTC design
• Discuss need for PTC design changes including addition of a FPGA

to form hardware interlock signals, reduce the number of connections between the slow control system and the TPC electronics while increasing the number of environmental variables that are being monitored. Discuss the impact on the design of the WIB (addition of a communication path between WIBs and PTC)

• Is there anything else missing ?

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Additional details

• Charge letter available in DocDB-17508
• Review committee has been formed (chair is P. Farthouat,

members Giovanna Lehman, David Cussans, Jamieson Olsen, John Parsons, +TBA)

• Agenda will be posted next week
• I will start contacting speakers and other people to provide

documentation for the review starting this evening

• Would like to have complete documentation in EDMS and all

presentations available for internal review by March 2, needs to be finalized by March 5

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