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Update on HCAL parameters

Update on HCAL parameters. Christian Grefe CERN. Overview. The HCAL design choice is (for a fixed λ ) a cost optimization between coil size and dense but expensive tungsten.

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Update on HCAL parameters

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  1. Update on HCAL parameters Christian Grefe CERN

  2. Overview • The HCAL design choice is (for a fixed λ) a cost optimization between coil size and dense but expensive tungsten. • The numbers for different HCAL configurations shown on the 15th December were for equally thick absorber plates (2.0 cm) • The comparison should instead be for absorber plate thicknesses with equal λ and thus equal number of layers

  3. HCAL barrel dimensions (same thickness for passive) • 7 λ case (layer: 2.0 cm absorber + 0.75 cm Scint), Rmin= 141 cm, 12 fold

  4. HCAL barrel dimensions (SiD-like tracker) • 7 λ case (layer: 0.12 λabsorber + 0.75 Scint), Rmin= 141 cm, 12 fold

  5. HCAL barrel dimensions (ILD-like tracker) • 7 λ case (layer: 0.12 λabsorber + 0.75 Scint), Rmin= 206cm, 12 fold

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