ECAL – CLIC_ILD vs. CLICdet_2015 Overall dimensions/shapes considered Technology details will follow (not for this round of CLIC detector model) reminder: CLIC_ILD simulation model used square support tube from ILD; CLICdet_2015 uses round support tube

CLICdet_2015

CLICdet_2015

ECAL barrel CLIC_ILD CLICdet_2015 Absorber Tungsten Active Elements Silicon pads Sampling layers 30 (20 × 2.1, 10 × 4.2) 25 (17× 2.4, 8 × 4.8) Cell size 5.1 × 5.1 mm2 X0 and (int). 23 and 1 Inner radius 1847 mm 1500 mm Outer radius 2020 mm 1659 mm Max. Z 2350 mm 2250 mm Polygon 8 12

ECAL endcap and plug CLIC_ILD CLICdet_2015 Absorber Tungsten Active elements Silicon pads Sampling layers 30 (20 × 2.1, 10 × 4.2) 25 (17× 2.4, 8 × 4.8) Cell size 5.1 × 5.1 X0 and (int). 23 and 1 Inner radius 270 410 mm Outer radius 2270 1700 mm Plug inner radius 260 mm Plug outer radius 380 mm Min. Z 2450 2350 mm Max. Z 2622 2509 mm Polygon 0 and 8 12 and 12 30 mm

FYI – about LumiCal differences to LCD-Note-2011-002 (=CDR); differences to original study by I. Sadeh, LCD-Note-2009-002 CLICdet_2015 2011 2009 [mm] [mm] LumiCal Zin 2539 2654 LumiCal Zout 2710 2825 LumiCal Rin 100 100 LumiCal Rout 340 290 (ECAL plug Rin 260 242 ) ------------------------ theta_min (geom) 39.4 mrad 37.7 mrad 44 mrad theta max (geom) 102 mrad 109 mrad 153 mrad