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v3.3-pre
Michael:
Thresholds for detectors: All quite straightforward, except for weird looking energy spectrum in muon veto --> Suggestion Frederik: Loosen energy gates a tiny bit
Understanding muon veto energy spectrum:
energy correlation plot with muon entrance and electron veto reveals quite little
time correlation plots show some interesting signals. We should probably not apply an energy cut on this guy.
Electron veto timing:
Time difference with germanium shows shoulder at larger germanium times (low energy events)
Also a seemingly physical tail for tGermanium > tElectron --> Suggestion Frederik: Muonic x-ray in scintillator and brehm strahlung induced in germanium
Window tE - tG in [-50 ns; +20 ns] seems appropriate to cut as Brehmstrahlung
Compton suppression with cluster detectors:
Time difference high energy time - low energy time --> Asymmetric due to ELET failing at very low energy
Window of [-400 ns; 300 ns] seems appropriate
Effect on spectrum: Compton suppression of 28% (Clover) and 21% (Miniball) --> Nice, but not groundbreaking
Finite bin effects:
1 bin = 1 eV --> Seemingly no effect
1 bin = 0.1 eV --> Starts clearly showing
Suggestion Frederik: Maybe other parts have an effect on this and will increase chi2 and/or move the centroid --> Check with varying bin sizes
Marie:
Ge08 shows some odd high energy tailing --> Is this the one with the makeshift preamp?
--> Michael: Isn't in the K and Cl data
--> Suggestion Stella: Sometimes also in NaI detectors, maybe adjust fitting function?
--> Suggestion Michael: Perhaps electronic noise adding to the full peak?
Anastasia:
Working on uranium data, will try to present something next meeting
Thomas:
BVR meeting
Addendum submitted (lanthanides and actinides)
Reference radii after MIXE and before Quartet?