EMu Slice Test Status slides for Giorgio FGSept

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EMu Slice Test Status slides for Giorgio FG-Sept 6, 2005 Sept. 6, 2005 EMu

EMu Slice Test Status slides for Giorgio FG-Sept 6, 2005 Sept. 6, 2005 EMu Slice Test Status -- FG

EMu Slice Test Summer n July 11 – 15: Summer Workshop Topics q Peripheral

EMu Slice Test Summer n July 11 – 15: Summer Workshop Topics q Peripheral Crate timing (SX 5) n n q Production DDU/DCC (Counting House) n n q significant progress on trigger timing external trigger: scintillator Fiber input from Slice Test (Periph. Crate’s DMBs) S-Link output to FRL (Global DAQ) New VME Crate Controller (B 904) n n Sept. 6, 2005 tested at 904 continued software development at Rice EMu Slice Test Status -- FG 2

EMu Slice Test Organization n Important increase in manpower for the Slice Test efforts

EMu Slice Test Organization n Important increase in manpower for the Slice Test efforts q n EMu Workshops q n n Jinghua Liu (Rice) and Martin vd Mey (FNAL) next one Sept. 12 – 16 (before CMS week) Bi-weekly VRVS meetings Reorganization of online software q q prepare for XDAQ v 3 migration separation of Core and Application software n q relevant step to code reuse and B 904 test suites new repository for online analysis software n Sept. 6, 2005 e. g. , analysis and calibration utilities EMu Slice Test Status -- FG 3

Peripheral Crate Triggers n external: scintillator-coincidence trigger q q TTC and add’l trigger electronics

Peripheral Crate Triggers n external: scintillator-coincidence trigger q q TTC and add’l trigger electronics at YE+2 ~80 x 80 cm 2 overlap with ME+2/3/31 (and ME+3/3/31 on the other side of YE+2) in principle, only target chambers will show L 1 a-LCT correlations … … BUT, since the timing procedures essentially work on a full crate (by pulsing the on-chamber electronics), the other chambers should be timed in as well. n in principle, one L 1 a-offset per crate. q n Sept. 6, 2005 in practice, still many parameters involved important spin-off for the B 904 Peripheral Crate Commissioning EMu Slice Test Status -- FG 4

Peripheral Crate Triggers (cont’d) n self-trigger: based on Track. Finder L 1 request q

Peripheral Crate Triggers (cont’d) n self-trigger: based on Track. Finder L 1 request q involves all chambers q q exercise EMu system with large latencies n n 180 m fiber between Peripheral and TF crates 180 m fiber back from TTC to Peripheral Crate q q [TMBs →MPC] → [SP→CCB] → TTC → [CCB/TMBs/DMBs] approx. 34 extra BXs compared to final CMS, partially accommodated in (temporary) firmware updates peripheral crate is completely timed in n Sept. 6, 2005 except for CFEB readout throughout the whole crate, which awaits a last firmware updated (DMB). EMu Slice Test Status -- FG 5

EMu Slice Test Summer Summary n Slice Test workshops have been very useful q

EMu Slice Test Summer Summary n Slice Test workshops have been very useful q n Externally and self-triggered set-ups q q n will continue to use this format at least until the Cosmic Challenge for both cases chambers were timed in unfortunately, both cannot coexist at the same TTC Timing procedures significantly improved q various new aspects discovered and solved n q different from Beam Tests software and documentation in a good shape n Sept. 6, 2005 ready to be automated EMu Slice Test Status -- FG 6

EMu Slice Test: Fall ‘ 05 n Major topics for upcoming workshop: q q

EMu Slice Test: Fall ‘ 05 n Major topics for upcoming workshop: q q q 2 nd peripheral crate based on final design: CRB, cooling, new backplane New TMB and RAT modules Introduce a 2 nd MPC for further trigger studies n n Divide ME 2 and ME 3 chambers up between the two peripheral crates q n Reintroduce the new VME CC, production FED electronics in the slice test set-up hook up more chambers Continue software reorganization/modifications q q core and application frameworks new hardware (TMB, crate controller, FED electronics) Sept. 6, 2005 EMu Slice Test Status -- FG 7

EMu Slice Test Latencies n EMu system is highly configurable. Only one parameter fixed

EMu Slice Test Latencies n EMu system is highly configurable. Only one parameter fixed (in firmware): L 1 ACFEB timing q q n n set to 2. 9 us (minimum), which is based on the 3. 2 us for CMS, by design only fixed reference point Scintillator and Beam Test trigger configurations have traditionally been very compact. q q Peripheral Crate at YE+2 disk TF trigger generation and TTC equipment in Counting House n q q n Given the low cosmic rate no reason to worry about dead time due to SCA blocks not being released in time Note: q q q another 180 m Extra 34 BXs in fiber path compared to CMS final fibers Sept. 6, 2005 q n This ~5 BXs more than CMS design, but more importantly substantially more than the initial 2. 9 us. Firmware changes to the DMB allow the fixed latency to be adjusted in increments of 400 ns. 180 m fiber each way FED crate in Counting House n A careful measurement of the latencies showed that due to the substantial length of optical fibers L 1 A latency is 133 BXs (3. 3 us). q adjusting latencies was always possible by adding external delays to the trigger signal Track. Finder trigger based Slice. Test involves larger distances between the various electronics components q n these changes are Slice. Test specific and have no consequences for final CMS the 2. 9 us was a fairly arbitrary but relevant number. It is likely to be changed for the final CMS the fiber lengths quoted on this page are EMu Slice Test specific and will change again once the EMu Slice Test integrates in the Magnet Test EMu Slice Test Status -- FG 8

EMu Slice Test Latencies (cont’d) Sept. 6, 2005 EMu Slice Test Status -- FG

EMu Slice Test Latencies (cont’d) Sept. 6, 2005 EMu Slice Test Status -- FG 9