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Engineering Drawings GeoModel Detail Geometry GeoModel Coarse Geometry

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Presentation on theme: "Engineering Drawings GeoModel Detail Geometry GeoModel Coarse Geometry"— Presentation transcript:

1 Engineering Drawings GeoModel Detail Geometry GeoModel Coarse Geometry
ATLAS SCT geometry update plan Engineering Drawings Volume & Material excel tables GeoModel Detail Geometry we are here GeoModel Coarse Geometry for DC3 (hopefully) Using GeoModel for Geant4 Web page for this work:

2 ジオメトリー構築

3 3. ジオメトリー構築 ねらい 詳細なジオメトリーを構築 その後正しく単純化 最適化されたジオメトリーをATLAS標準シミュレーションに使う

4

5 Drawings for Volume Definition (examples)

6 Specifications of the Volumes (examples)
Volume name length position angle den-sity Material name x y z mm degree g/cm2 SCTBTopSensorPair 128.05 63.56 0.285 0.4325 1.1459 2.328 Si SCTBBottomSensorPair SCTBBaseboard1 53.50 68.50 0.580 11.250 -15.25 1.595 SCTBBaseboardMaterial SCTBTopCoolendFacing 60.00 16.67 0.250 14.500 -41.16 0.335 3.002 SCTBCoolendFacingMaterial SCTBTopFarsideCCStep 21.00 4.000 16.204 35.083 0.750 1.82 SCTBCarbonCArbonBridgeMaterial SCTBTopCarbobCarbon 74.60 0.370 15.498 0.210 -1.125 1.81 SCTBBottomCopperPolyimide 0.279 -1.55 1.93 SCTBCopperPolyimideMaterial SCTBBottomChip2 8.400 6.550 0.600 13.006 -15.36 -1.989 2.46 SCTBAsicMaterail SCTBTopPitchAdaptor 2.700 63.00 6.350 -0.027 1.814 2.71 SCTBPitchAdaptorMaterail SCTBHybridConnector 25.40 3.050 5.000 14.076 1.689 1.38 SCTBHybridConnector Materal These values are taken from the final drawings for production. The positions refer to the center of the SCT barrel module.

7 Calculation of Material Composition (examples)
Material Components Carbon-Carbon: (weight=1.786 g) Carbon 100%, r = 1.90 g/cm3 Parylene-C: (weight=0.081 g) C8H7Cl, r = g/cm3 Conductive Adhesive: (weight=0.033 g) Epoxy 29 W%, Silver 71 W% Thermal Adhesive: (weight=0.198 g) Epoxy W%, Boron Nitride 30.25W% Composition of “SCTBCarbonCarbonbridgeMaterial “ Material weight H B C N O Cl Ag Carbon-Carbon 1.789 1.0 Parylene-C 0.081 0.051 0.693 0.256 Conductive adhesive 0.033 0.021 0.220 0.049 0.710 Thermal adhesive 0.198 0.134 0.526 0.174 0.117 TOTAL 2.098 0.0069 0.0126 0.9313 0.0164 0.0098 0.0111

8 Naming of Volumes for SCT Barrel Module (examples)
SCTBBottomChip1,----,6 SCTBBottomCarbobCarbon SCTBTopChip1,----,6 SCTBTopPitchAdaptor SCTBTopCopperPolyimide SCTBTopSensorPair SCTBHybridConnector SCTBBaseboard1,2,3,4,5 SCTBTopCoolendFacing SCTBBottomSensorPair Naming rules - Attach header SCTB for all volumes. - As close as hardware names. - Easy to guess the objects.

9 詳細ジオメトリーとの比較(留田) 簡易ジオメトリー 詳細ジオメトリー total radiation length
Radiation length X/X0 total radiation length rapidity

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11 Detailジオメトリーに追加された部品

12 放射長および質量の計算結果 Detail Geometry 平均10.2%Radlen Non-Detail Geometry

13 放射長および重量の比較結果 放射長の平均値が減少 重量 DetailジオメトリーではHybridの厚さが0.451mmだけ薄くなっている
Detail Geometry 平均10.2%Radlen Non-Detail Geometry 平均9.4%Radlen 放射長の平均値が減少 DetailジオメトリーではHybridの厚さが0.451mmだけ薄くなっている Connectorなどの小さな部品は面積が狭いので 放射長に寄与しにくい 重量 Detailジオメトリーのほうが実物と良く一致している 実物 :24.86g Detail :24.62g (ジオメトリーパラメータから計算) Non-Detail :27.67g (ジオメトリーパラメータから計算) Hepvis Event Viewerを使っても質量を計算できる


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