TOTEM Electronics Status Walter Snoeys CERN

TOTEM Electronics Status Walter Snoeys – CERN – PH – ESE – ME –TOTEM October 2009

Electronics § 220 m RP station of sector 5 -6 brought up and running (only 1 VFAT out of 240 does not respond correctly). § With installation of T 2 and RP at 220 m significant progress and experience with the overall electronics system § Quite intense cabling activity, also on optical fibers for better protection and flexibility. Cabling in the tunnel complete, gradually moving to final configuration in the counting room § New repeater modules for electrical trigger signals (RP 220 m) tested with final cables and signal generator. Now moving to test with real VFAT signals. § Printed circuit boards production problems and detailed detector electronics status: see next slides § Electronics providing interlocks for the machine currently under test after many iterations with the machine Walter Snoeys – CERN – PH – ESE – ME –TOTEM October 2009

Host board status § § First production had soldering problem, some work, but can fail ‘any day’. CMS has received ~25 boards like this, and TOTEM ~20 After diagnosis new production recovering some of the components. First recovery phase finished and two new batches delivered: § 10 5 delivered to TOTEM, 5 to CMS (with visit of Gueorgui and Sylvain to Israel) § 24 all delivered to CMS, several with problems (4 defective, other 5 with workaround). § Communication with the company not easy – questions on the components, test results at the company, etc… § Need to speed up production. Walter Snoeys – CERN – PH – ESE – ME –TOTEM October 2009

Electronics system TOTEM Roman Pots Counting room RP motherboard Finished Feb 2009, units for 147 m under test To DAQ Tracking data 220 m 147 m Trigger data HOST board: clear soldering problem production relaunched short cabling finished RP hybrid with VFATs and detector Agreement with Cicorel on relaunch of production Walter Snoeys – CERN – PH – ESE – ME –TOTEM October 2009 OK Trigger data Trigger Timing Trigger and Timing TTC data DOHM Control FEC-CCS OK

Beam Interlock n n n Need cabling between motor racks and S 1 E 8 (done) Need electronics box to treat the signals (negotiated simplified scheme with the motor control people) -> just got installed after rearranging of the rack by CMS Get tests done -> to be started Walter Snoeys – CERN – PH – ESE – ME –TOTEM October 2009

Interlock Block Diagramme MACHINE FLAGS ALL_RP_OUT INJECTION_PERMIT (Beam 1) IN MOTOR CONTROL RACK End Switch 1 x 12 End Switch 12 RP_OUT 12 LVDT Resolver 1 x 12 LVDT Resolver 12 FESA GMT (SMP) TOTEM Operator x 12 Position 12 compare x 12 compare AND ALL_RP_OUT OR AND CIBF 1 USER_PERMIT 1 (Beam 1) USER_PERMIT 1 (Beam 2) Limits x 12 INJECTION_PERMIT (Beam 2) DEVICE_ALLOWED OVERRIDE 1 STABLE_BEAM Motor Control AND OR OR CIBU 1 CIBF 2 BACK_HOME IN S 2 E 11 (TRIGGER/DAQ) RACK DAQTR 1 x 4 DAQTR DOWN DAQTR_OUT 12 x 4 AND DAQTR_OUT OVERRIDE 2 Walter Snoeys – CERN – PH – ESE – ME –TOTEM October 2009 OR USER_PERMIT 2 (Beam 1) USER_PERMIT 2 (Beam 2) CIBU 2

Roman Pot Electronics Status § § § 12 Roman Pots installed, RP MBs received for rest of the pots, need testing Printed Circuit boards issues n HOST board (cfr supra) n RP hybrid -> new production launched for 147 m after discussion with company n CC mezzanine production (delamination) n Electronics for electrical repeaters tested, would like to test in tunnel + launch production, cabling for this almost debugged -> needs mechanical adaptation on HOST board n Interlock box installed to be tested in situ (pcb already tested separately) Cabling n Lots of progress n Local and alcove (maratons) cabling complete n Local fibers installed, made support for optical fanouts n Optical patch panel in counting room finished Walter Snoeys – CERN – PH – ESE – ME –TOTEM October 2009

Gas detector hybrids: 370 destroyed in production (delamination) Hybrids delivered to T 1 and T 2: § To T 1: 348 + 21 delaminated, 255 working, need 280 in the experiment § Should look what can be recovered. Should look at ‘incorrect DAC parameters’ (double check limits) !! Issue = tripping effect § To T 2: 233 strips 641 pads, § Need 160 and 520 working § Already relaunched 100 pads/100 strips in a small production here at CERN § Strip hybrids should be sufficient to cover immediate T 1 need Working with Bice to get reimbursed, and with Cicorel for new production Walter Snoeys – CERN – PH – ESE – ME –TOTEM October 2009

Electronics system overview CSC (T 1) Counting room Cathode frontend card with VFATs Readout Card To DAQ Tracking data Raw trigger data HOST board: clear soldering problem production relaunched For T 1 no ondetector coincidence, trigger formation in counting room only TTC data Detector Hybrids Anode frontend card with VFATs TTC data Trigger and Timing DOHM OK Walter Snoeys – CERN – PH – ESE – ME –TOTEM October 2009 FEC-CCS OK

T 1 (CSC) Electronics Status n n n Lots of progress Detector hybrids + tripping issue Need to work on DCS/DSS box Walter Snoeys – CERN – PH – ESE – ME –TOTEM October 2009

Electronics system overview GEM (T 2) Counting room Rack near detector OK To DAQ 11 th card with coincidence chip GOHs Tracking data Trigger data TTC data HOST board: clear soldering problem production relaunched opto. TX GOHs Trigger data opto. TX horseshoe OK Detector Hybrids Tracking data DOHM Trigger and Timing TTC data DOHM Walter Snoeys – CERN – PH – ESE – ME –TOTEM October 2009 FEC-CCS OK

T 2 (GEM) Electronics Status § § Need T 2 DCS box installed to branch DCS but also DSS Detector hybrids (see previous slide) CC mezzanine production difficult (spares) CCUM ok but need more spares Walter Snoeys – CERN – PH – ESE – ME –TOTEM October 2009

Printed circuit boards Walter Snoeys – CERN – PH – ESE – ME –TOTEM October 2009

Conclusions § Issues: § Host board production § Hybrids § CC mezzanine § T 1 tripping § Lots of progress – large effort on cabling/mounting § Still need link between counting room and cavern § Test of interlock box § Need to cable DSS/DCS and finalize counting room USC 55 § Discussion with CMS for TTC Walter Snoeys – CERN – PH – ESE – ME –TOTEM October 2009