Timeline for FEMB Development, System Tests and protoDUNE Run 2 Marco Verzocchi - Fermilab Cold Electronics Workshop – Brookhaven National Laboratory 17 July 2018
Content • Different systems available - 40% APA at BNL - protoDUNE APA in CERN cold box - new small TPC at Fermilab - DUNE prototype APA | - protoDUNE Run 2 • Timeline for FEMB development and goals 2 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
40% APA @ BNL (i) | 3 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
40% APA @ BNL (ii) | 4 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
40% APA at BNL (iii) • Requires 8 FEMB • Test in LN 2 (it actually requires a lot of LN 2 ) • Not a TPC • Always available • Can be used for fast feedback • Will be in our testing plan for at least all of 2019 5 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
protoDUNE APA #7 in cold box @ CERN (i) • New protoDUNE APA will be built in the UK with minor modifications - Use to commission new winder - Use new system for the ground mesh (this will not be the final mesh, it will be less transparent for photons) • Regular discussions with APA consortium on timeline - We will again have access to the cold box on Nov. 12 (beginning of SPS shutdown) - Some work needed to put back rail support system (and remove some of the muon detectors ?) - Not clear we will have photon detectors installed - Plan is to fully characterize the APA in the cold box using protoDUNE FEMBs, ideally before the CERN Christmas closure 6 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
protoDUNE APA #7 in cold box @ CERN (ii) • Requires 20 FEMB - We may prefer to keep 10 protoDUNE FEMBs, and replace the other 10 with new ones to allow direct comparison • Test in cold gaseous LN 2 • Known system, but remote • Availability depends on CERN support (conflicts with continued protoDUNE cosmics run ?) • Can be used for fast feedback • Will be in our testing plan for at least all of 2019 7 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
New small TPC at Fermilab • Discussed by Dave yesterday • Plans is to fully commission in the Fall with protoDUNE FEMBs • Fast / easy turnaround (2-3 weeks) when inserting new components (FEMBs, photon detectors) • It’s a real TPC ( cosmics) • Plan to use it until beginning of production, the cryostat will then become a user facility for testing new designs in LAr • It’s not an inexpensive object (~$0.5M to build it, $5k of LAr every time we empty it and fill it again) 8 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
DUNE prototype APA at CERN (i) • The APA consortium is planning on building 3 DUNE prototype APAs in 2019 using new 4”x4” tubing for the frame - First two will be purely mechanical (no wires) and will be used to check the APA stacking and the cable routing in a test at Ash River • We are interested in this for the cable routine part of the test Will be further discussed after lunch in Manhong’s presentation • - The third APA will be a complete prototype • PD consortium informed only this past week, will need to make sure that PD cables and connectors will be available before winding starts • Will be available at CERN toward the end of 2019 / beginning of 2020 • We will want to use this APA instead of protoDUNE APA for further tests of cold electronics / new photon detectors • We will need 20 new FEMBs to fully populate it (if possible we will also do some tests with older FEMBs for reference) 9 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
DUNE prototype APA at CERN (ii) • We need to understand whether we are going to have changes to the CR boards, CR-FEMB connection, FEMB form factor (cannot make it bigger, but no push at this point to make it smaller) • Ideally we want to maintain compatibility (connector) of current FEMB with FEMB for DUNE - But we (as entire Collaboration) should make an effort and understand the few channel failures observed in protoDUNE and decide whether this requires a serious investigation of the reliability of the connections in the APA board stack/ CR boards / FEMBs • If we change connectors / form factors we may need adapter cards to continue using 40% APA at BNL, small TPC at Fermilab 10 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
protoDUNE Run 2 (i) • APA plans - 2018/2019 modifications to the APA design, new winders - 2019 first set of prototypes - 2020 set up factories - 2021 begin production • Some APAs could also become available in 2020 • Bring 2 or 3 DUNE APA (depends on difference with 1 st prototype) to CERN - Fully populate with final (pre-production) FEMBs - Characterize in cold box - Install in protoDUNE (beam side), take data again in 2021/2022 11 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
protoDUNE Run 2 (ii) • TCO closure done in such a way that cryostat can be reopened and resealed a few times • Second run of protoDUNE will be a stress on the Collaboration resources • Calibration data with the final detector • Need to present a proposal to CERN SPSC in October - Approaching quickly, have not yet seen real discussion of this in the DUNE Collaboration 12 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
Timeline (i) • May 2018: test FEMBs with commercial ADCs in 40% prototype at BNL (SBND Collaboration) Fall 2018: commission new small TPC at Fermilab and 7 th protoDUNE • APA at CERN with protoDUNE FEMBs • Question #1: do we (does SBND) want to test SBND FEMBs with the small TPC at Fermilab (SBND doing tests with LArIAT) and/or with the 7 th protoDUNE APA at CERN ? Require 10 FEMBs - My opinion is that this is something we need to do prior to the TDR submission • CRYO ASIC: - Standalone tests Nov/Dec, mount on FEMBs in January, test FEMBs - Test with 40% prototype at BNL, small TPC at Fermilab, protoDUNE APA#7 at CERN in February / March 13 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
Timeline (ii) • New BNL-FNAL-LBNL ADC - Standalone tests January/February, mount on FEMBs and test in March (first version of FEMB, still using FPGA, 2 nd version of FEMB with COLDATA will be available in May) - Test with 40% prototype at BNL, small TPC at Fermilab, protoDUNE APA#7 at CERN in April/May (first version of FEMB, using FPGA, not COLDATA) Test again (2 nd version of FEMB, with COLDATA) in June/July - • Delays in the ASICs submission mean that will NOT be having all the system test results prior to the TDR submission - So far no indication that FNAL/LBNF/DUNE management want to delay TDR submission - Will have additions to TDR for LBNC and DOE reviews - We do NOT have any room for further slippages of schedule (absolutely need results for DOE review in October 2019) 14 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
First generation FEMBs • Maintain compatibility with protoDUNE - Minimize changes to WIB (just FPGA programming if possible, more changes required for CRYO) - Connection to CR board - Number of power and signal/control cables - No change in functionality of FEMB / interface between WIB and FEB (except when absolutely necessary, e.g. for CRYO) • Design of FEMBs for new cold ADC (first with FPGA, then with COLDATA) to start soon - Minimal modifications relative to current design 15 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
Timeline (iii) • Second iteration of ASICs 2 nd version of CRYO - LArASIC v9 + 2 nd version of new cold ADC/COLDATA - • Difficult to predict when these will be available, will depend on the problems with the 1 st version (and whether we want to add features / change specifications) - 1 year after first version (i.e. roughly Spring 2020) ? • What do we use for the first DUNE prototype APA at CERN ? Same boards used for first test ? Wait until 2 nd generation of ASICs - is available ? - Do they need to be modified because of changes in connector(s) / form factor 16 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
Second generation FEMBs (i) • Give up compatibility with current hardware - Connection to CR board should be revisited (if we understand that this has been a source of dead channels), if needed use adapters for matching with protoDUNE APA / small TPC at Fermilab / 40% APA at BNL - Change dimensions of FEMB if needed / appropriate (we are allowed to change only in one direction, if we need to grow in size there we will need to stack two boards) • Finalize dimensions as soon as possible (mechanical interface with APA, contribute to overall size of object that needs to fit throughTCO) • Revisit cable connections and routing • Try to keep FEMBs for top/bottom APA identical, but if required this is something we could sacrifice to gain space (route cables differently) - Reduce number of cables as much as possible 2.56 Gbit/s links for 2 nd generation of COLDATA • • Remove non-necessary signal and power links 17 17 Jul 18 M. Verzocchi | Timeline for System Tests and protoDUNE Run 2
Recommend
More recommend
