2017-11-30 physics-shifter¶

Start Date: 2017-11-30
End Date: 2017-12-05
Start Run: 10313
End Run: 10431
Physics shifter: Chris Rogers

Summary¶

The aim was to get the empty data for corresponding LiH full settings (solenoid mode)

• 30th Nov - 1st Dec: 2017-02-6
• 1st Dec - 2nd Dec: 2016-04-1.2
• 2nd Dec - 3rd Dec: 2016-04-1.7
• 3rd Dec - 4th Dec: 2016-04-2.4a
• 4th Dec - SSD quenched

Note that KL was fixed around 30th Nov.

Elog, CDB¶

Fine

Online reco¶

Fine

Analysis¶

30th November¶

Checked:

• TOF1 dt is 50 ps, still not great; TOF0 and TOF2 slab conversion to space point efficiency ~ 97-98 %
• TKU, TKD has no obvious dead area
• Amplitude change looks good

1st December¶

Checked:

• TOF1 dt is 50 ps, still not great; TOF0 and TOF2 slab conversion to space point efficiency ~ 97-98 %
• TKU, TKD has no obvious dead area; chi2 looks reasonable
• Amplitude change looks good

I also did some beamline optimisation with Paolo; results here

2nd December - 200 MeV/c channel¶

Checked as per above; all looks good.

3rd December - 240 MeV/c channel¶

Checked as per above; all looks good. Noted that chi2 distribution appears to have less tail for 240 MeV/c data...

4th December¶

The magnets quenched - straight tracks data overnight