Disconnected Channels in Proto DUNE T Yang APA

Disconnected Channels in Proto. DUNE T. Yang APA Consortium Meeting Nov 19, 2018

Introduction • There are 15360 channels in Proto. DUNE-SP. • The CE group reported 34 channels with disconnected connection. 1, # femb 311 u 39 400, # femb 301 u 40 401, # femb 301 u 39 800, # femb 320 v 01 801, # femb 320 v 02 876, # femb 319 v 37 1200, # femb 310 v 01 2961, # femb 501 u 39 5321, # femb 216 u 39 5363, # femb 217 u 37 6132, # femb 215 v 13 7058, # femb 213 x 03 7295, # femb 202 x 01 7681, # femb 611 u 39 8080, # femb 601 u 40 8328, # femb 607 u 32 8480, # femb 620 v 01 9282, # femb 620 x 03 9283, # femb 620 x 04 9736, # femb 611 x 25 9854, # femb 602 x 02 10800, # femb 105 u 40 11024, # femb 110 u 16 11457, # femb 110 v 18 11459, # femb 110 v 20 11463, # femb 110 v 24 11469, # femb 110 v 30 11517, # femb 109 v 38 11669, # femb 105 v 30 11679, # femb 105 v 40 12756, # femb 110 x 44 12801, # femb 411 u 39 13001, # femb 416 u 39 13081, # femb 418 u 39 and 4 channels with a bad FE ASIC 4411, # femb 515 x 12 9990, # femb 605 x 10 4412, # femb 515 x 13 11842, # femb 120 x 03 • David Adams found 4 additional channels that look like “disconnected connection” 4410, # femb 515 x 11, ENC > 2000 e no signal 2, # femb 311 u 38, no signal 7680, # femb 611 u 40: No signal in 5308 -76, end wire 5361, # femb 217 u 39, no signal 2 Presenter Name | Presentation Title

Summary of the disconnected channels U plane wires V plane wires X plane wires 17 13 8 APA 1 2 7 10 3 APA 2 1 3 1 6 APA 3 2 4 4 APA 4 0 8 Presenter Name | Presentation Title 3 0 3 APA 5 0 1 0 2 APA 6 1 4 1 9 4

U wires V wires X wires drift side cryostat side 4 Presenter Name | Presentation Title

Intermittent bad connection? • David Adams reported: - I just found a ”disconnected channel" connection come back to life. The CE team reported that femb 110 v 30 (offline 11469) was bad and I confirmed this in run-event 4875 -185 but see that it looks fine in 5308 -76. - It is a V wire in APA 1. 5 Presenter Name | Presentation Title

Other bad channels • David Adams creates a bad channel list https: //cdcvs. fnal. gov/redmine/projects/dunetpc/repository/revisi ons/develop/entry/dune/Protodune/singlephase/fcl/channelstatu s_pdsp. fcl • David also gave a talk at the DRA meeting last week: https: //indico. fnal. gov/event/19071/contribution/3/material/slides/ 0. pdf • He looked at all channels (APA 1 -6): - 133 bad channels (0. 9%) - 37 noisy (0. 2%) • Mostly sticky channels - this list will likely grow - 311 with sticky codes (2. 1%) • Total of 497 sticky codes 6 Presenter Name | Presentation Title