10 mm depth 16 mm depth BEFORE AFTER

TiTi alloyDiff. % 2 mm10 mm16 mm2 mm10 mm16 mm Adriana GEANT ~7% Luis FLUKA ~10 Diff. %44% less 47% less -41% less 44% less 37% less ~43% Comparison between Fluka and GEANT4 Luis: bin size (10x10x500) µm 3 Adriana: bin size (2σ x x2σ y x500)µm 3

2E10 e- at 250 GeV. Size (σ x x σ y ) Max T Keller simulation [°C] Max T Luis FLUKA simulation Max T Adriana GEANT4 0.6 rl Ti alloy28 x (5 µm radius cylinders of 0.3 cm length) 1120 (10x10x500 µm 3 ) 1380 (2x12x500 µm 3 ) 1560 (2x4x500 µm 3 ) 1056 (10x10x500) 0.6 rl Ti alloy111 x 9290 (5 µm radius cylinders) 255 (10x10x500 µm 3 ) 1056 (10x10x500) 1.0 rl Ti alloy104 x (10 µm radius cylinders) 300 (10x10x500 µm 3 ) 266 (10x20x500 µm 3 ) 2560 (10x10x500) 30 cm copper20 x (3 µm radius cylinders) (10x10x500 µm 3 ) (4x1.2x500 µm 3 ) -

2E10 e- at 500 GeV Size (σ x x σ y ) Max T Keller simulation [°C] Max T Luis FLUKA simulation Max T Adriana GEANT4 0.6 rl Ti alloy28/√2 x 6/√22770 (5 µm radius cylinders of 0.3 cm) 2680 (2x10x500 µm 3 ) 3180 (2x4x500 µm 3 ) x10x rl Ti alloy111 /√2 x 9 /√2560 (5 µm radius cylinders) 450 (10x10x500 µm 3 ) x10x rl Ti alloy58 x (10 µm radius cylinders) 760 (10x20x500 µm 3 ) x10x cm copper20 /√2 x 1.4 /√ (3 µm radius cylinders) (4x0.4x500 µm 3 ) (4x0.8x500 µm 3 ) -