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20 Oct 2009G. Rakness (UCLA)1 Powering on… Last week: CMS off to give evaporation time to dry out the experiment Monday – Tuesday: Began powering on CSCs.

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Presentation on theme: "20 Oct 2009G. Rakness (UCLA)1 Powering on… Last week: CMS off to give evaporation time to dry out the experiment Monday – Tuesday: Began powering on CSCs."— Presentation transcript:

1 20 Oct 2009G. Rakness (UCLA)1 Powering on… Last week: CMS off to give evaporation time to dry out the experiment Monday – Tuesday: Began powering on CSCs –All chambers HV = OK –ME  2, ME  3, ME  4 LV = OK Tomorrow: Continue powering on ME–1

2 20 Oct 2009G. Rakness (UCLA)2 Near term CMS Running 22 – 23 Oct.: Mid-Week Global Run –To include clock scan Mon. 26 Oct.: Begin 24/7 global running in preparation for beam –CSC shifts begin Monday 26 Oct. 09:00 –Plan is: start/stop runs as predicted for first collisions after stop perform calibration runs 2 shifts/week “playtime” Restricted change control

3 20 Oct 2009G. Rakness (UCLA)3 LHC Plans as of this Morning This weekend: Injection tests to sector 3-4 (LHCb, ALICE) 7 – 8 Nov.: Injection tests to sector 4-5 (CMS) –Injection tests = “beam splash” events….

4 20 Oct 2009G. Rakness (UCLA)4 Proposal for CSC to-do w.r.t. TMB Wednesday: –Continue powering on detector: ME–1 –Merge TMB software with online software version currently in CVS Currently ongoing… –After ME–1 on, change online software link to merged version and download TMB firmware (15 Oct 2009 version) to VMEm2_5 –Measure communication parameters alct_rx_clock_delay, alct_tx_clock_delay, alct_posneg, alct_tx_posneg, cfeb[0-4]delay –Synchronize BC0 –Take a long local run, i.e., enough data to get sensible “Dayong’s plots” –Roll back TMB firmware and software Weekend: –Assuming Dayong’s plots look OK Download TMB firmware to system Move to online software version EMULIB_7_12 (new TMB software) Measure communication and synchronize BC0 in system Monday: –Local run and make sure everything is OK… (if I somehow didn’t manage to get one on Sunday…)

5 20 Oct 2009G. Rakness (UCLA)5 Xml file created for VMEm2_5 (test chamber for muonic timing) Starting from VME_minus_20091005_pretrigger3.xml… Change the TMB Firmware dates –tmb_firmware_month="6“  “10” –tmb_firmware_day="4“  “15” Add communication parameter alct_tx_posneg=“XX“ –to be measured Add Time-of-flight offsets… –alct_tof_delay=“XX”  input values from Jay (next page) –tmb_to_alct_data_delay=“XX“  input values from Jay (next page) –cfeb_tof_delay="0“ –cfeb0_tof_delay="0“ –cfeb1_tof_delay="0“ –cfeb2_tof_delay="0“ –cfeb3_tof_delay="0“ –cfeb4_tof_delay="0" Make LCT0 BC0 from TMB, LCT1 BC0 from ALCT –Add mpc_sel_ttc_bx0="0“ –Change alct_bx0_enable="0" to alct_bx0_enable="1" Change tmb_bxn_offset=“XX”  “3540” –Variable: will affect absolute offset of RX (see next page) Change alct_bxn_offset=“XX”  “0” –With muonic timing, BXN should = 0 @ BC0… (may need to change depending on ALCT latching of BC0 signal)

6 20 Oct 2009G. Rakness (UCLA)6 Muonic timing parameters from Jay to be used in the test xml Set mpc_tx_delay="0" Replace afeb_fine_delay values with FAST site values (to compensate for AFEB  ALCT cable lengths) Input values… TX == tmb_to_alct_data_delay tx == alct_tof_delay Chamber TX tx RX rx ME-2/1/14 8 0 8 0 ME-2/1/15 7 12 8 0 ME-2/1/16 7 9 7 10 ME-2/2/27 8 8 7 11 ME-2/2/28 9 0 8 4 ME-2/2/29 9 3 8 6 ME-2/2/30 9 0 8 4 ME-2/2/31 8 10 8 2 ME-2/2/32 8 10 8 2 Values to be measured to compare with above predictions… RX = alct_bx0_delay (= match_trig_alct_delay) Rx = alct_rx_clock_delay


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