Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, 10 th of October, Remote control and monitoring of ToF-L/R detector Jovan Puzović, Faculty of Physics, Belgrade

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 2 out of 24 Jovan Puzović, Belgrade SHINE team Time of Flight L/R detector

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 3 out of 24 Jovan Puzović, Belgrade SHINE team 2*891 scintillators & PMT (3.4 x 2.3 x 6,7,8)cm 3 HV System Trigger System Start Counter Signal Read Out Discriminators, TDCs, QDCs Control while data taking Calibration and TOF client

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 4 out of 24 Jovan Puzović, Belgrade SHINE team Principles of operation Start signal from S1 Stop signal from scintillator

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 5 out of 24 Jovan Puzović, Belgrade SHINE team Current system topology Caen 5Caen 1Caen 5Caen 1

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 6 out of 24 Jovan Puzović, Belgrade SHINE team SY527 Main menu C.A.E.N. SY527 V3.17 Crate 01 M A I N M E N U Display Display/Modify channels Protections Set/Reset password Crate Connect a new crate Map Crate map Kill Kill all channels Alarms Reset alarms Status Select type of alarm Format Reformat EEPROM Quit Abandon program Select item

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 7 out of 24 Jovan Puzović, Belgrade SHINE team SY527 Data display C.A.E.N. SY527 V3.04 A753 GROUP00 Ch_En is: On V0-SEL I0-SEL Crate 05 Page 1 * Channel HVmax Vmon Imon V0set I0set Pw Status Ch# CHANNEL mA mA On 3.07 CHANNEL mA mA On 3.08 CHANNEL mA mA On 5.00 CHANNEL mA mA On 5.01 CHANNEL mA mA On 5.02 CHANNEL mA mA On 5.03 CHANNEL mA mA On 5.04 CHANNEL mA mA On 5.05 CHANNEL mA mA On 5.06 CHANNEL mA mA On 5.07 CHANNEL mA mA On 5.08 CHANNEL mA mA On 7.00 CHANNEL mA mA On 7.01 CHANNEL mA mA On 7.02 CHANNEL mA mA On 7.03 CHANNEL mA mA On 7.04 Quit Change Update Next Prev More Switch V/Isel

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 8 out of 24 Jovan Puzović, Belgrade SHINE team TOF-L/R in 2010 run

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 9 out of 24 Jovan Puzović, Belgrade SHINE team 2010 Run summary

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 10 out of 24 Jovan Puzović, Belgrade SHINE team Current system topology Caen 5Caen 1Caen 5Caen 1

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 11 out of 24 Jovan Puzović, Belgrade SHINE team Planned system topology

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 12 out of 24 Jovan Puzović, Belgrade SHINE team Objectives 1)Improve connection reliability with crates in the pit 2) Enable remote monitoring of HV parameters 3) Enable remote control of HV parameters 4) Enable possibility for HV status logging 5) Allow possibility to send warnings to expert in case of malfunction

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 13 out of 24 Jovan Puzović, Belgrade SHINE team RS232 mux candidates Price ~400USD Have to be order from US Remote Access Terminal Server Price: 840EUR !!! Distrelec Price: 420 CHF at Distrelec Deliver time: ? Techmania – stack empty Tech Mania 35CHF Topd 65CHF

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 14 out of 24 Jovan Puzović, Belgrade SHINE team DELOCK OHC computers, Topd ~ 90CHF Not as elegant as Terminal Servers, but cheap!

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 15 out of 24 Jovan Puzović, Belgrade SHINE team Hardware

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 16 out of 24 Jovan Puzović, Belgrade SHINE team Aging problem Communication problem persist with TOF-R crate 4! Problems are typical aging problem (bad contact between connectors, chips and sockets etc…) Decide to open Crate 4 in very bad working conditions Communication restored, but we lose 2 HV distributors!

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 17 out of 24 Jovan Puzović, Belgrade SHINE team QDC distribution - before

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 18 out of 24 Jovan Puzović, Belgrade SHINE team QDC distribution - after

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 19 out of 24 Jovan Puzović, Belgrade SHINE team TDC – single bad pixel

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 20 out of 24 Jovan Puzović, Belgrade SHINE team TDC – multi bad pixel

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 21 out of 24 Jovan Puzović, Belgrade SHINE team ToF-R bad pixels Pixel Before After Gen Crate Dist Chan ÷ ÷ ÷ ÷ ÷70÷ ÷ ÷10÷ ÷ Before: 34 bad pixel (random) After: 30 (random) Before: 34 bad pixel (random) After: 30 (random) Before: 34 bad pixel (random) After: 30 (random) Before: 34 single bad pixel (random) After: 30 single bad pixel (random)

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 22 out of 24 Jovan Puzović, Belgrade SHINE team ToF-R bad pixels Pixel Before After Gen Crate Dist Chan ÷ ÷ ÷ ÷ ÷70÷ ÷10 Additional 59 bad pixel (4 already in random!) Crate 4, distributors 3 and 6 – 37 new bad pixel Crate 1, distributor 5 – 22 new bad pixel (HV Off!)

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 23 out of 24 Jovan Puzović, Belgrade SHINE team Summary At the end of 2011 proton run ToF-L : 87 (bad pixel) (9.7%) + 17 (suspicious)(1.9%) (11.6%) Before intervention: ToF-R: 34 (random bad pixel) After intervention: ToF-R: 30 (random bad pixel) + 37 (due to the intervention, Crate 4) + 22 (unknown reason, Crate 1) (10.0%)

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 24 out of 24 Jovan Puzović, Belgrade SHINE team Conclusion Control and monitoring hardware upgrade successful! For ION run, remote control, monitoring and data logging of HV status will be possible Problems: urgently needs for spare parts for CAEN HV system, TDC and QDC Without spare parts, the future will not be bright for ToF-LR!

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 25 out of 24 Jovan Puzović, Belgrade SHINE team THE END

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 26 out of 24 Jovan Puzović, Belgrade SHINE team TOF-L TDC sample

Faculty of Physics, University of Belgrade Collaboration meeting, Zagreb, Page 27 out of 24 Jovan Puzović, Belgrade SHINE team TOF-L bad pixels -87 bad pixels (count 0 in TDC) 1, 3, 14, 42, 54, 61, 63, 64, 102, 129, 133, 137, 138, 142, 154, 156, 157, 160, 163, 179, 194, 199, 216, 221, 226, 243, 250, 253, 287, 318, 320, 329, 353, 358, 379, 380, 390, 410, 411, 413, 453, 460, 469, 480, 501, 506, 529, 530, 545, 564, 570, 588, 595, 599, 627, 635, 639, 653, 660, 662, 663, 670, 681, 683, 711, 743, 748, 757, 766, 767, 771, 773, 774, 783, 787, 790, 793, 800, 805, 819, 824, 840, 861, 868, 878, 879, suspicious pixels (count 1 in TDC) 85, 140, 169, 376, 395, 424, 451, 549, 633, 634, 660, 720, 736, 779, 784, 819, 889