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SPICECUBE
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absorption vs. scattering
Legend: Scaled log Final fit
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Minimizer steps 1x -rde -unf 10x -rde -unf
new: lea: ? ? Ratio to initial approximation (SL)
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fit region (inside detector)
black line: 7-string fit to flasher data absorption gray band: scaled merged dust log (m-1) extrapolation region fit region (inside detector) (outside detector)
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fit region (inside detector)
black line: 7-string fit to flasher data scattering gray band: scaled merged dust log dotted line: with air bubbles (m-1) extrapolation region fit region (inside detector) (outside detector)
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flasher photon yield New: 3.26 Lea: 3.63 2.50 2.78
new convention, off by 1/(0.85*0.9) 2.50 2.78 (old convention)
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Ratio New/Lea
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Dust logger vs. EDML
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Merged dust log
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Ratio new model/merged log
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Correlation to new model
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Fit to relative DOM efficiencies
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Correlation to cathode sensitivity
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Selected model parameters
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Selected model parameters
10x simulation
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Selected model parameters
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Selected model parameters
10x simulation
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From SPICE Lea ICRC report:
Red: charge-only Blue: time-binned
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f/py inhomogeneity
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f/py inhomogeneity 10x simulation
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k1/py inhomogeneity 10x simulation
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Map of fitted DOM efficiencies
Average per string
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Model error and linearity: NEW (1x)
> 0, 1, 10, 100, 400 p.e./event
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Model error and linearity: NEW
> 0, 1, 10, 100, 400 p.e./event
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Model error and linearity: NEW
> 0, 1, 10, 100, 400 p.e./event k1= f=131
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Model error and linearity: NEW
> 0, 1, 10, 100, 400 p.e./event No RDE fit
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Model error and linearity: NEW
> 0, 1, 10, 100, 400 p.e./event also no azimuthal unfolding
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Model error and linearity: LEA
> 0, 1, 10, 100, 400 p.e./event No RDE fit
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Model error and linearity: LEA
> 0, 1, 10, 100, 400 p.e./event also no azimuthal unfolding
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Linearity: NEW (1x) log10(data/simulation) at sim=100 p.e.
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Linearity: NEW (10x) log10(data/simulation) at sim=100 p.e.
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Linearity: NEW (10x) log10(data/simulation) at sim=100 p.e.
k1= f=131
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Linearity: NEW (10x) No RDE fit also no azimuthal unfolding
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Linearity: LEA (10x) No RDE fit also no azimuthal unfolding
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Status Model error (precision in charge prediction): 10-11%
Extrapolation uncertainty: 13% (sca) / 15% (abs) Linearity: < 2% in range 0.1 … 500 p.e.
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Timeline AMANDA ice models:
bulk, f125, mam, mamint, stdkurt, sudkurt, kgm, … millennium (published 2006) AHA (2007) % IceCube ice models: cont. WHAM (2011) % SPICE 1 (2009) % SPICE 2, 2+, 2x, 2y (2010) added ice layer tilt SPICE Mie (2010) fit to scattering function 29% SPICE Lea (2012) fit to scattering anisotropy 20% SPICE Next (2013) 7-string, LED unfolding 17% SPICE Last (2014) llh fixes, DOM sensitivity fits 11%
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