Physics Shift Report¶
Dates: 09-10-2017 - 13-10-2017
Shifter: Christoper Hunt
Run Numbers: 09905 - 09965
Table of Runs¶
|Objective||Analysis Code||Channel||Setting||Run Numbers|
|lH2 Scattering||S14d||Field Off||3-240+M3-Test1||09935 09936 09937 09938 09939 09940 09941 09942 09943 09944 09945|
|lH2 Emittance Evolution||H31a||2017-02-6||3-140+M3-Test3||09906|
|H35a||2017-02-5||3-140+M3-Test3||09918 09920 09923 09926 9932|
|H35b||2017-02-5||6-140+M3-Test2||09921 09924 09927 09931|
|H35c||2017-02-5||10-140+M3-Test4||09922 09925 09929 09930|
|H36a||2017-02-7||3-140+M3-Test4||09947 09956 09961|
|H36aa||2017-02-7||3-140+M3-Test3||09952 09954 09955 09965|
|H36b||2017-02-7||4-140+M3-Test1||09948 09950 09957 09958 09962|
|H36c||2017-02-7||6-140+M3-Test2||09949 09959 09960 09963|
|H36d||2017-02-7||10-140+M3-Test4||09953 09953 09964|
|H32c||2017-02-6||3-240+M3-Test1||09907 09908 09909 09912 09913 09914|
Analysis Tasks: H33 & H34 were for beamline tuning and were scrutinised in depth by the owner. (C Hunt, J Pasternak, C Rogers, T Mohayai)
Analysis Task: H37 Another tuning run (30k Triggers) for the 4mm setting.
Elog, CDB, and Reconstruction¶
Elog entries: All ok.
CDB uploaded: All ok.
CDB End Coil Currents¶
It was noted (whilst on shift) that the CDB was not receiving the correct current settings for the End coils from run control.
This was later rediscovered by C Rogers when trying to analyse emittance evolution - the field magnitude was wrong therefore the momentum reconstruction was wrong.
The CDB was retroactively moderated to correctly reflect the cooling channel settings, and the runs are being reprocessed. Hopefully the issue is resolved.
- Noticed that the EMR normalised Chi-squared values appear to have a momentum dependence. Higher momentum runs have slightly larger chi-squared values. Still with expected limits however. May be due to relative pion contamination.
- There is a PMT power supply issue in the EMR plane 26. This is known about by the experts so no problem.
- Some runs have no OnRec plots on reco.mice at time of writing: 09927 09928
- Noticed during the Field-Off runs that some demonstrate what appears to be a shadow of the diffuser in TKU-station5. Probably completely fine - just interesting.