Tuesday 08:30 Fill 2700 dumped by QPS on RCBXH2.L1

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Presentation transcript:

Tuesday 08:30 Fill 2700 dumped by QPS on RCBXH2.L1 SUE candidate. Integrated luminosity 33 pb-1 in 1:40. Delaying refill for ATLAS solenoid (in case access would have been needed). 10:00 Injecting. Back to filling scheme with 3 non-colliding bunches. 11:00 ALTAS solenoid tripped again during ramp up. 11:30 Stable beam fill 2701, L ~ 6.2E33 cm-2s-1. ATLAS solenoid ramping up… CMS VdM cancelled. 23:20 Dump by OP. Integrated luminosity 160 pb-1 in 11:50. 11/27/2018 LHC 8:30 meeting

Night 00:00 Access for CMS, ATLAS and ALICE. 01:20 Machine closed. 03:30 Dump at 450 GeV. UFO candidate around MKI2. ~300 ms after injection. BCT 11/27/2018 LHC 8:30 meeting

Night 04:00 Dump beam – some poor injections. 05:00 Ramp started. Beam not ideal… Beam dumped in ramp. Water flow fault on converter RQ10.R1. Access for EPC. Pressure increased from 1.9 to 2.2 bar. 11/27/2018 LHC 8:30 meeting

Today XPOC error investigations. Test dump when we are ready again. Then refill for physics. Expected around 10:00 11/27/2018 LHC 8:30 meeting

Pending CMS VdM and ADT gain reduction at end of fill. RF: 1 hour end of fill for fine adjustment of tuners. Impact of TETRA on hump / beam. 30 mins at injection with probe bunches. Accesses: TCLIB.6R2.B1 electronics and LVDT sensor MAD PM15: motors of inner doors not working RQTL11.R7B2 temp DFBAN spikes affecting cryo start but not CM (~3 to 5 hours). BI in Pt4 (3-4 hours, working hours). MKA test in Pt4 (1-2 hours). 11/27/2018 LHC 8:30 meeting