SPICECUBE
absorption vs. scattering Legend: Scaled log Final fit
Minimizer steps 1x -rde -unf 10x -rde -unf new: 193.1 202.4 208.9 289.3 344.2 391.9 lea: ? 205.0 211.2 ? 357.9 408.8 Ratio to initial approximation (SL)
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)
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)
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)
Ratio New/Lea
Dust logger vs. EDML
Merged dust log
Ratio new model/merged log
Correlation to new model
Fit to relative DOM efficiencies
Correlation to cathode sensitivity
Selected model parameters
Selected model parameters 10x simulation
Selected model parameters
Selected model parameters 10x simulation
From SPICE Lea ICRC report: Red: charge-only Blue: time-binned
f/py inhomogeneity
f/py inhomogeneity 10x simulation
k1/py inhomogeneity 10x simulation
Map of fitted DOM efficiencies Average per string
Model error and linearity: NEW (1x) > 0, 1, 10, 100, 400 p.e./event
Model error and linearity: NEW > 0, 1, 10, 100, 400 p.e./event
Model error and linearity: NEW > 0, 1, 10, 100, 400 p.e./event k1=-0.09 f=131
Model error and linearity: NEW > 0, 1, 10, 100, 400 p.e./event No RDE fit
Model error and linearity: NEW > 0, 1, 10, 100, 400 p.e./event also no azimuthal unfolding
Model error and linearity: LEA > 0, 1, 10, 100, 400 p.e./event No RDE fit
Model error and linearity: LEA > 0, 1, 10, 100, 400 p.e./event also no azimuthal unfolding
Linearity: NEW (1x) log10(data/simulation) at sim=100 p.e.
Linearity: NEW (10x) log10(data/simulation) at sim=100 p.e.
Linearity: NEW (10x) log10(data/simulation) at sim=100 p.e. k1=-0.09 f=131
Linearity: NEW (10x) No RDE fit also no azimuthal unfolding
Linearity: LEA (10x) No RDE fit also no azimuthal unfolding
Status Model error (precision in charge prediction): 10-11% Extrapolation uncertainty: 13% (sca) / 15% (abs) Linearity: < 2% in range 0.1 … 500 p.e.
Timeline AMANDA ice models: bulk, f125, mam, mamint, stdkurt, sudkurt, kgm, … millennium (published 2006) AHA (2007) 55% IceCube ice models: cont. WHAM (2011) 42% SPICE 1 (2009) 29% 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%