System Tests Report Summary
No differences for the comparison with the previous release, GR v15r46p1.
Differences with respect to GR v15r45 are due to mishandling of the gamma filter that only occurs in MC simulations.
This is a candidate for L1Proc. The differences in the comparison with the preceding L1 Proc version, GR v15r40 are understood to be those discussed in GR v15r42, and the differences due to misinterpreting the new gamma filter in MC.
Changes
- OnboardFilter, OnboardFilterTds, IExternal/obf - filter updates for FSW B1-1-3
- lsfData - fix handling for GammaFilterRsdV3
Filter Energy
One glance at the filter energy plot shows a substantial chunk of events missing for the all the tests, for example at lower energy for AllGamma (below left). The effect is the same for also present for B1-1-2 in GRv15r46p1. Note that the system test filter energy plot has no cuts applied and the job options are set to pass all events.
On the bright side, we are removing background events with a shocking efficiency. Looking into a discrepancy between the system test merit file and this plot for the BackGndMixDC2 test. There should be a few hundred events in it.
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Tracy took a look at the discrepancy and found that this is a problem in the MC simulations exposed by the new and early processed "non-physics" filter bit in GammaFilterV3. This is not a problem for data and did not appear in the test bed studies. The new filter version makes a cut on GEM bits, and these are not being set properly in the simulation. This will clearly need to be fixed in the simulations, but Tracy concludes it will not impact data processing.
I'm also attaching the plots remade from the system test merit files with the trigger and filter conditions applied:
GltGemSummary>0 && ObfGamStatus>0
The post cuts filter energy distribution for the AllGamma test (left) is close to identical for r47p1 compared to r46p1. Note that the background test (right) does have events with filter energies. Looking into why the above plot for the backgnd test disagrees.
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