CalRecon Moments Analysis Studies I Tracy Usher1/17 A Brief History of Glast Release GR1.1594 (Friday, July 15) –Effectively, the first DC-2 2M all-gamma.

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Presentation transcript:

CalRecon Moments Analysis Studies I Tracy Usher1/17 A Brief History of Glast Release GR (Friday, July 15) –Effectively, the first DC-2 2M all-gamma sample –Had various problems (no MIP finding, Direct diode deposit all to one face, etc.) GR1.612 (Wednesday, July 27) –Why change one thing when you can change 10? 21 packages change between these two runs –Most important to this discussion: Convert ntuple output from doubles to floats CalDigi, CalXtalResponse and Trigger packages extensively refactored. Also attempts to raise thresholds to 2 MeV and double the noise MIP finding turned on (version optimized for speed) Various bug fixes in CalRecon, Event and AnalysisNtuple related to new Cal output format –All runs use the same seed so can’t be used…

CalRecon Moments Analysis Studies I Tracy Usher2/17 A Brief History of Glast Release GR1.613 (Friday, July 29) –Fix run seed problem –Notice that energy response appears to have changed significantly GR1.615 –Six packages modified, including: CalXtalResponse – fix bug which allowed longitudinal position to be outside hit crystal (and often in another tower…) CalRecon – fix bug in Last Layer Likelihood tool which caused it to not get called –Still see problem with energy response in recon GR1.615-mod –Back out CalDigi/CalXtalResponse/Trigger to post GR1.594 versions This puts thresholds and noise back to “old” versions But appears to “solve” the energy response problem

CalRecon Moments Analysis Studies I Tracy Usher3/17 Cal Raw Energy Sum GR1.594 to GR1.615 all-gamma 180 GeV Blue Histogram: GR1.594 Red Overlay: GR1.615 Was not expecting things to get worse!!!

CalRecon Moments Analysis Studies I Tracy Usher4/17 Cal “PSF” GR1.594 to GR1.615 MC-Cal Angle (radians) all-gamma 180 GeV Blue Histogram: GR1.615 Red Overlay: GR1.594 Was not expecting things to get worse!!!

CalRecon Moments Analysis Studies I Tracy Usher5/17 Look at Input to CalRecon CalXtalRecData: GR1.594 to GR1.615 all-gamma 180 GeV Blue Histogram: GR1.594 Red Overlay: GR1.615 Number of CalXtalRecData objects per event (with a nonzero number of CalDigis

CalRecon Moments Analysis Studies I Tracy Usher6/17 Look at Input to CalRecon CalXtalRecData: GR1.594 to GR1.615 all-gamma 180 GeV Blue Histogram: GR1.594 Red Overlay: GR1.615 Energy per CalXtalRecData object for all CalXtalRecData objects in each event Close in on range 0-50 MeV

CalRecon Moments Analysis Studies I Tracy Usher7/17 Look at Input to CalRecon CalXtalRecData: GR1.594 to GR1.615mod all-gamma 180 GeV Blue Histogram: GR1.594 Red Overlay: GR1.615mod Energy per CalXtalRecData object for all CalXtalRecData objects in each event Close in on range 0-50 MeV “Old” CalXtalResponse code with raised thresholds and noise

CalRecon Moments Analysis Studies I Tracy Usher8/17 Cal Raw Energy Sum GR1.594 to GR1.615 all-gamma 180 GeV Blue Histogram: GR1.613 Red Overlay: GR1.594 Was not expecting things to get worse!!!

CalRecon Moments Analysis Studies I Tracy Usher9/17 Cal “PSF” GR1.594 to GR1.613 MC-Cal Angle (radians) all-gamma 180 GeV Blue Histogram: GR1.615-mod Red Overlay: GR1.594 This is what I expected!

CalRecon Moments Analysis Studies I Tracy Usher10/17 Where Are We Now? Recon appears to be ready for CT studies again –MIP Finding code in place and in output ntuple –Cluster energy and axis appear to be “normal” Running the “old” CalDigi/CalXtalResponse/Trigger –Can raise thresholds and noise in this code to desired levels –Are we losing something in the updated package that we need for DC-2? –Time frame for studying/fixing the code? Are there other problems? –Onboard Filter is having a problem too? Opinions?