MKD Reliability run

Viliam SenajTCM meeting 18/11/2014

Tests performed on generators• Since 01/10: – LBDS1: 11 ES up to 7.1 TeV (55 pulses at each energy) + ~

40 pulses @ 7.1 TeV + ~ 15 pulses @ 6.5 TeV + 100s @ 450 GeV

– LBDS2: 14 ES up to 7.1 TeV (70 pulses) + ~ 15 p @ 6.5 TeV– No real reliability run because of too high temperature at

UA63/67 (VAC group maintenance)– Modification performed:

• Compensation voltage setting at low energies (up to 800 GeV) to make R_end curve more flat

• Increase of bias voltage to 280 V (from 270 V) in order to reduce R_1 at low energies (>7.5%)

Problems observed

• B2: 24 V PS inside PTU• B2: 150 V PS inside PTU• Compensation PS • 4 kV PS inside PTU

Still to be done

• New ES; generating new settings, tracking limits…

• Reliability run…