// Author : Yves Schutz (SUBATECH)
// Modified : Yuri Kharlov (IHEP, Protvino)
// 13 September 2000
+// Modified : Dmitri Peressounko (RRC "Kurchatov Institute")
+// 6 August 2001
// --- AliRoot header files ---
#include "AliPHOSEMCAGeometry.h"
-ClassImp(AliPHOSEMCAGeometry) ;
+ClassImp(AliPHOSEMCAGeometry)
//____________________________________________________________________________
-AliPHOSEMCAGeometry::AliPHOSEMCAGeometry()
+AliPHOSEMCAGeometry::AliPHOSEMCAGeometry():
+ fAirGapLed(0.f),
+ fStripWallWidthOut(0.f),
+ fStripWallWidthIn(0.f),
+ fTyvecThickness(0.f),
+ fInnerThermoWidthX(0.f),
+ fInnerThermoWidthY(0.f),
+ fInnerThermoWidthZ(0.f),
+ fAirGapWidthX(0.f),
+ fAirGapWidthY(0.f),
+ fAirGapWidthZ(0.f),
+ fCoolerWidthX(0.f),
+ fCoolerWidthY(0.f),
+ fCoolerWidthZ(0.f),
+ fAlCoverThickness(0.f),
+ fOuterThermoWidthXUp(0.f),
+ fOuterThermoWidthXLow(0.f),
+ fOuterThermoWidthY(0.f),
+ fOuterThermoWidthZ(0.f),
+ fAlFrontCoverX(0.f),
+ fAlFrontCoverZ(0.f),
+ fFiberGlassSup2X(0.f),
+ fFiberGlassSup1X(0.f),
+ fFrameHeight(0.f),
+ fFrameThickness(0.f),
+ fAirSpaceFeeX(0.f),
+ fAirSpaceFeeZ(0.f),
+ fAirSpaceFeeY(0.f),
+ fWarmUpperThickness(0.f),
+ fWarmBottomThickness(0.f),
+ fWarmAlCoverWidthX(0.f),
+ fWarmAlCoverWidthY(0.f),
+ fWarmAlCoverWidthZ(0.f),
+ fFiberGlassSup1Y(0.f),
+ fFiberGlassSup2Y(0.f),
+ fTSupportDist(0.f),
+ fTSupport1Thickness(0.f),
+ fTSupport2Thickness(0.f),
+ fTSupport1Width(0.f),
+ fTSupport2Width(0.f),
+ fIPtoOuterCoverDistance(0.f),
+ fIPtoCrystalSurface(0.f),
+ fSupportPlateThickness(0.f),
+ fNCellsXInStrip(0),
+ fNCellsZInStrip(0),
+ fNStripX(0),
+ fNStripZ(0),
+ fNTSupports(0),
+ fNPhi(0),
+ fNZ(0)
{
+
// Initializes the EMC parameters
+ // Coordinate system chosen: x across beam, z along beam, y out of beam.
+ // Reference point for all volumes incide module is
+ // center of module in x,z on the upper surface of support beam
- fNPhi = 64 ;
- fNZ = 64 ;
+ //Distance from IP to surface of the crystals
+ fIPtoCrystalSurface = 460.0 ;
- fXtlSize[0] = 2.2 ;
- fXtlSize[1] = 22.0 ;
- fXtlSize[2] = 2.2 ;
- // all these numbers coming next are subject to changes
+ //CRYSTAL
+
+ fCrystalHalfSize[0] = 2.2 /2 ; //Half-Sizes of crystall
+ fCrystalHalfSize[1] = 18.0 /2 ;
+ fCrystalHalfSize[2] = 2.2 /2 ;
+
+ //APD + preamplifier
- fOuterBoxThickness[0] = 2.5 ;
- fOuterBoxThickness[1] = 5.0 ;
- fOuterBoxThickness[2] = 5.0 ;
-
- fUpperPlateThickness = 4.0 ;
-
- fSecondUpperPlateThickness = 5.0 ;
-
- fCrystalSupportHeight = 6.95 ;
- fCrystalWrapThickness = 0.01 ;
- fCrystalHolderThickness = 0.005 ;
- fModuleBoxThickness = 2.0 ;
- fIPtoOuterCoverDistance = 447.0 ;
- fIPtoCrystalSurface = 460.0 ;
-
//fPinDiodeSize[0] = 1.71 ; //Values of ame PIN diode
- //fPinDiodeSize[1] = 0.0280 ; // 0.0280 is the depth of active layer
+ //fPinDiodeSize[1] = 0.0280 ; // OHO 0.0280 is the depth of active layer
//fPinDiodeSize[2] = 1.61 ;
- fPinDiodeSize[0] = 0.5000 ; // APD 5 mm side
- //fPinDiodeSize[1] = 0.0200 ; // APD bulk thickness
- fPinDiodeSize[1] = 0.0100 ; // APD bulk thickness
- //According to Y. M. (cms) is it 50 micrometer I use 100 micrometers
- fPinDiodeSize[2] = 0.5000 ; // APD 5 mm side
-
- fUpperCoolingPlateThickness = 0.06 ;
- fSupportPlateThickness = 10.0 ;
- fLowerThermoPlateThickness = 3.0 ;
- fLowerTextolitPlateThickness = 1.0 ;
- fGapBetweenCrystals = 0.03 ;
-
- fTextolitBoxThickness[0] = 1.5 ;
- fTextolitBoxThickness[1] = 0.0 ;
- fTextolitBoxThickness[2] = 3.0 ;
-
- fAirThickness[0] = 0.4 ;
- fAirThickness[1] = 20.5175 ;
- fAirThickness[2] = 2.48 ;
+ fPinDiodeHalfSize[0] = 0.5000 /2 ; // APD 5 mm side
+ fPinDiodeHalfSize[1] = 0.0100 /2 ; // APD bulk thickness
+ fPinDiodeHalfSize[2] = 0.5000 /2 ; // APD 5 mm side
+
+ fPreampHalfSize[0] = 1.5 / 2 ; // Preamplifier
+ fPreampHalfSize[1] = 0.5 / 2 ;
+ fPreampHalfSize[2] = 1.5 / 2 ;
+
+ //Strip unit (8x2 crystals)
+
+ fNCellsXInStrip = 8 ; //Number of crystals in strip unit along x-axis
+ fNCellsZInStrip = 2 ; //Number of crystals in strip unit along z-axis
+ fNStripX = 8 ; //Number of strip units across along x-axis
+ fNStripZ = 28 ; //Number of strips along z-axis
+
+ fStripWallWidthOut = 0.01 ; // Side to another strip
+ fStripWallWidthIn = 0.02 ; // Side betveen crystals in one strip
+
+ fTyvecThickness = 0.0175 ; //Thickness of the tyvec
+
+ fAirGapLed = 1.5 - 2 * fPreampHalfSize[1] - 2 * fPinDiodeHalfSize[1] ; // Air gap before crystalls for LED system
+ // Note, that Cell in Strip 1.5 longer then crystall
+
+ //---Now calculate thechnical sizes for GEANT implementation
+
+ fWrappedHalfSize[0] = (2*fTyvecThickness + 2*fCrystalHalfSize[0])/2 ; //This will be size of crystall
+ fWrappedHalfSize[1] = fCrystalHalfSize[1] ; //wrapped into tyvec
+ fWrappedHalfSize[2] = (2*fTyvecThickness + 2*fCrystalHalfSize[2])/2 ; //
+
+ fAirCellHalfSize[0] = fWrappedHalfSize[0] + 0.01;
+ fAirCellHalfSize[1] = (fAirGapLed + 2*fPreampHalfSize[1] +
+ 2*fPinDiodeHalfSize[1] + 2*fWrappedHalfSize[1])/2 ; //in strip
+ fAirCellHalfSize[2] = fWrappedHalfSize[2] + 0.01;
+
+ // fSupportPlateHalfSize[0] = ( (fNCellsXInStrip-1)*fStripWallWidthIn + 2*fStripWallWidthOut +
+ // fNCellsXInStrip * (2*fTyvecThickness + 2*fCrystalHalfSize[0]) )/2 ;
+ fSupportPlateHalfSize[0] = 18.04 /2 ;
+ fSupportPlateHalfSize[1] = 6.0 /2 ;
+// fSupportPlateHalfSize[2] = ( (fNCellsZInStrip-1)*fStripWallWidthIn + 2*fStripWallWidthOut +
+// fNCellsZInStrip * (2*fTyvecThickness + 2*fCrystalHalfSize[2]) )/2;
+ fSupportPlateHalfSize[2] = 4.51 /2 ;
+ fSupportPlateThickness = 0.3 ;
+ fSupportPlateInHalfSize[0] = fSupportPlateHalfSize[0] ; //Half-sizes of the air
+ fSupportPlateInHalfSize[1] = fSupportPlateHalfSize[1]-fSupportPlateThickness ; //box in the support plate
+ fSupportPlateInHalfSize[2] = fSupportPlateHalfSize[2]-fSupportPlateThickness/2 ;
+
+ fStripHalfSize[0]= fSupportPlateHalfSize[0] ;
+ fStripHalfSize[1]= ( 2*fSupportPlateHalfSize[1] + 2*fAirCellHalfSize[1] )/2;
+ fStripHalfSize[2]= fSupportPlateHalfSize[2] ;
+
+ // ------- Inner hermoinsulation ---------------
+ fInnerThermoWidthX = 2.0 ; // Width of the innerthermoinsulation across the beam
+ fInnerThermoWidthY = 2.0 ; // Width of the upper cover of innerthermoinsulation
+ fInnerThermoWidthZ = 2.0 ; // Width of the innerthermoinsulation along the beam
+
+ fInnerThermoHalfSize[0] = (2 * fStripHalfSize[0] * fNStripX + 2 * fInnerThermoWidthX ) /2 ;
+ fInnerThermoHalfSize[1] = (2 * fStripHalfSize[1] + fInnerThermoWidthY ) /2 ;
+ fInnerThermoHalfSize[2] = (2 * fStripHalfSize[2] * fNStripZ + 2 * fInnerThermoWidthZ ) /2 ;
+
+ // ------- Air gap between inner thermoinsulation and passive coller ---------
+
+ fAirGapWidthX = 0.2 ; // Width of the air gap across the beam
+ fAirGapWidthY = 0.2 ; // Width of the upper air gap
+ fAirGapWidthZ = 0.2 ; // Width of the air gap along the beam
+
+ fAirGapHalfSize[0] = (2 * fInnerThermoHalfSize[0] + 2 * fAirGapWidthX ) /2 ;
+ fAirGapHalfSize[1] = (2 * fInnerThermoHalfSize[1] + fAirGapWidthY ) /2 ;
+ fAirGapHalfSize[2] = (2 * fInnerThermoHalfSize[2] + 2 * fAirGapWidthZ ) /2 ;
- Float_t xtalModulePhiSize = fNPhi * ( fXtlSize[0] + 2 * fGapBetweenCrystals ) ;
- Float_t xtalModuleZSize = fNZ * ( fXtlSize[2] + 2 * fGapBetweenCrystals ) ;
+ // ------- Passive Cooler ------------------------
+
+ fCoolerWidthX = 2.0 ; // Width of the passive coller across the beam
+ fCoolerWidthY = 0.3 ; // Width of the upper cover of cooler
+ fCoolerWidthZ = 2.0 ; // Width of the passive cooler along the beam
+
+ fCoolerHalfSize[0] = (2 * fAirGapHalfSize[0] + 2 * fCoolerWidthX ) /2 ;
+ fCoolerHalfSize[1] = (2 * fAirGapHalfSize[1] + fCoolerWidthY ) /2 ;
+ fCoolerHalfSize[2] = (2 * fAirGapHalfSize[2] + 2 * fCoolerWidthZ ) /2 ;
+
+ // ------- Outer thermoinsulation and Al cover -------------------------------
- // The next dimensions are calculated from the above parameters
+ fAlCoverThickness = 0.1 ; //Thickness of the Al cover of the module
+
+ fOuterThermoWidthXUp = 156.0 - fAlCoverThickness ;
+ //width of the upper surface of the PHOS module accross the beam
+ fOuterThermoWidthY = 6.0 ; // with of the upper cover of outer thermoinsulation
+ fOuterThermoWidthZ = 6.0 ; //width of the thermoinsulation along the beam
+
+ fAlFrontCoverX = 6.0 ; //Width of Al strip around fiberglass window: across
+ fAlFrontCoverZ = 6.0 ; //and along the beam
+
+
+ // Calculate distance from IP to upper cover
+ fIPtoOuterCoverDistance = fIPtoCrystalSurface - fAirGapLed - fInnerThermoWidthY - fAirGapWidthY -
+ fCoolerWidthY - fOuterThermoWidthY - fAlCoverThickness ;
+
+ Float_t tanA = fOuterThermoWidthXUp / (2.*fIPtoOuterCoverDistance) ;
+ // tan(a) where A = angle between IP to center and IP to side across beam
+
+ fOuterThermoWidthXLow = fOuterThermoWidthXUp +
+ 2 * (2* fCoolerHalfSize[1] + fOuterThermoWidthY) * tanA
+ - fAlCoverThickness ;
+ //width of the lower surface of the COOL section accross the beam
+
+
+ fOuterThermoParams[0] = fOuterThermoWidthXUp / 2 ; // half-length along x at the z surface positioned at -DZ;
+ fOuterThermoParams[1] = fOuterThermoWidthXLow/ 2 ; // half-length along x at the z surface positioned at +DZ;
+ fOuterThermoParams[2] = ( 2 * fCoolerHalfSize[2] + 2 * fOuterThermoWidthZ ) / 2 ;
+ // `half-length along the y-axis' in out case this is z axis
+ fOuterThermoParams[3] = ( 2* fCoolerHalfSize[1] + fOuterThermoWidthY) /2 ;
+ // `half-length along the z-axis' in our case this is y axis
+
+ fAlCoverParams[0] = fOuterThermoParams[0] + fAlCoverThickness ;
+ fAlCoverParams[1] = fOuterThermoParams[1] + fAlCoverThickness ;
+ fAlCoverParams[2] = fOuterThermoParams[2] + fAlCoverThickness ;
+ fAlCoverParams[3] = fOuterThermoParams[3] + fAlCoverThickness /2 ;
+
+
+ fFiberGlassHalfSize[0] = fAlCoverParams[0] - fAlFrontCoverX ;
+ fFiberGlassHalfSize[1] = fAlCoverParams[2] - fAlFrontCoverZ ; //Note, here other ref. system
+ fFiberGlassHalfSize[2] = fAlCoverThickness / 2 ;
+
+
+ //============Now warm section======================
+ //Al Cover
+ fWarmAlCoverWidthX = 2 * fAlCoverParams[1] ; //Across beam
+ fWarmAlCoverWidthY = 159.0 ; //along beam
+
+ //T-support
+ fTSupport1Thickness = 3.5 ;
+ fTSupport2Thickness = 5.0 ;
+ fTSupport1Width = 10.6 ;
+ fTSupport2Width = 3.1 ;
+ fNTSupports = fNStripX + 1 ;
+ fTSupportDist = 7.48 ;
+
+ //Air space for FEE
+ fAirSpaceFeeX = 148.6 ; //Across beam
+ fAirSpaceFeeY = 135.0 ; //along beam
+ fAirSpaceFeeZ = 19.0 ; //out of beam
+
+ //thermoinsulation
+ fWarmBottomThickness = 4.0 ;
+ fWarmUpperThickness = 4.0 ;
+
+ //Frame
+ fFrameThickness = 5.0 ;
+ fFrameHeight = 15.0 ;
+
+ //Fiberglass support
+ fFiberGlassSup1X = 6.0 ;
+ fFiberGlassSup1Y = 4.0 + fWarmUpperThickness ;
+
+ fFiberGlassSup2X = 3.0 ;
+ fFiberGlassSup2Y = fFrameHeight ;
+
+ //Now calculate Half-sizes
+
+ fWarmAlCoverWidthZ = fAirSpaceFeeZ + fWarmBottomThickness + fWarmUpperThickness +
+ fTSupport1Thickness + fTSupport2Thickness ;
+
+
+ fWarmAlCoverHalfSize[0] = fWarmAlCoverWidthX / 2 ;
+ fWarmAlCoverHalfSize[1] = fWarmAlCoverWidthY / 2 ;
+ fWarmAlCoverHalfSize[2] = fWarmAlCoverWidthZ / 2 ;
+
- fOuterBoxSize[0] = xtalModulePhiSize + 2 * ( fAirThickness[0] + fModuleBoxThickness
- + fTextolitBoxThickness[0] + fOuterBoxThickness[0] ) ;
- fOuterBoxSize[1] = ( fXtlSize[1] + fCrystalSupportHeight + fCrystalWrapThickness + fCrystalHolderThickness )
- + 2 * (fAirThickness[1] + fModuleBoxThickness + fTextolitBoxThickness[1] + fOuterBoxThickness[1] ) ;
- fOuterBoxSize[2] = xtalModuleZSize + 2 * ( fAirThickness[2] + fModuleBoxThickness
- + fTextolitBoxThickness[2] + fOuterBoxThickness[2] ) ;
+ fWarmThermoHalfSize[0] = fWarmAlCoverHalfSize[0] - fAlCoverThickness ;
+ fWarmThermoHalfSize[1] = fWarmAlCoverHalfSize[1] - fAlCoverThickness ;
+ fWarmThermoHalfSize[2] = fWarmAlCoverHalfSize[2] - fAlCoverThickness /2 ;
+
+
+ //T-support
+ fTSupport1HalfSize[0] = fTSupport1Width /2 ; //Across beam
+ fTSupport1HalfSize[1] = (fAirSpaceFeeY + 2*fFiberGlassSup1X) /2 ; //along beam
+ fTSupport1HalfSize[2] = fTSupport1Thickness /2; //out of beam
+
+ fTSupport2HalfSize[0] = fTSupport2Width /2; //Across beam
+ fTSupport2HalfSize[1] = fTSupport1HalfSize[1] ; //along beam
+ fTSupport2HalfSize[2] = fTSupport2Thickness /2; //out of beam
+
+ //cables
+ fTCables1HalfSize[0] = (2*fTSupport1HalfSize[0]*fNTSupports + (fNTSupports-1)* fTSupportDist) / 2 ; //Across beam
+ fTCables1HalfSize[1] = fTSupport1HalfSize[1] ; //along beam
+ fTCables1HalfSize[2] = fTSupport1HalfSize[2] ; //out of beam
+
+ fTCables2HalfSize[0] = fTCables1HalfSize[0] ; //Across beam
+ fTCables2HalfSize[1] = fTSupport2HalfSize[1] ; //along beam
+ fTCables2HalfSize[2] = fTSupport2HalfSize[2] ; //out of beam
+
+ //frame: we define two frames along beam ...Z and across beam ...X
+ fFrameXHalfSize[0] = (fAirSpaceFeeX + 2 * fFiberGlassSup2X + 2* fFrameThickness) /2 ;
+ fFrameXHalfSize[1] = fFrameThickness /2 ;
+ fFrameXHalfSize[2] = fFrameHeight /2 ;
+
+ fFrameXPosition[0] = 0 ;
+ fFrameXPosition[1] = fAirSpaceFeeY /2 + fFiberGlassSup2X + fFrameXHalfSize[1] ;
+ fFrameXPosition[2] = fWarmThermoHalfSize[2] - fFrameHeight/ 2 - fWarmBottomThickness ;
+
+ fFrameZHalfSize[0] = fFrameThickness /2 ;
+ fFrameZHalfSize[1] = (fAirSpaceFeeY + 2 * fFiberGlassSup2X) /2 ;
+ fFrameZHalfSize[2] = fFrameHeight /2 ;
+
+ fFrameZPosition[0] = fAirSpaceFeeX /2 + fFiberGlassSup2X + fFrameZHalfSize[0] ;
+ fFrameZPosition[1] = 0 ;
+ fFrameZPosition[2] = fWarmThermoHalfSize[2] - fFrameHeight/ 2 - fWarmBottomThickness ;
+
+ //Fiberglass support define 4 fiber glass supports 2 along Z and 2 along X
- fTextolitBoxSize[0] = fOuterBoxSize[0] - 2 * fOuterBoxThickness[0] ;
- fTextolitBoxSize[1] = fOuterBoxSize[1] - fOuterBoxThickness[1] - fUpperPlateThickness ;
- fTextolitBoxSize[2] = fOuterBoxSize[2] - 2 * fOuterBoxThickness[2] ;
+ fFGupXHalfSize[0] = fFrameXHalfSize[0] ;
+ fFGupXHalfSize[1] = fFiberGlassSup1X /2 ;
+ fFGupXHalfSize[2] = fFiberGlassSup1Y /2;
+
+ fFGupXPosition[0] = 0 ;
+ fFGupXPosition[1] = fAirSpaceFeeY /2 + fFGupXHalfSize[1] ;
+ fFGupXPosition[2] = fWarmThermoHalfSize[2] - fFrameHeight - fWarmBottomThickness - fFGupXHalfSize[2] ;
+
+ fFGupZHalfSize[0] = fFiberGlassSup1X /2 ;
+ fFGupZHalfSize[1] = fAirSpaceFeeY /2 ;
+ fFGupZHalfSize[2] = fFiberGlassSup1Y /2;
+
+ fFGupZPosition[0] = fAirSpaceFeeX /2 + fFGupZHalfSize[0] ;
+ fFGupZPosition[1] = 0 ;
+ fFGupZPosition[2] = fWarmThermoHalfSize[2] - fFrameHeight - fWarmBottomThickness - fFGupXHalfSize[2] ;
+
+ fFGlowXHalfSize[0] = fFrameXHalfSize[0] - 2*fFrameZHalfSize[0] ;
+ fFGlowXHalfSize[1] = fFiberGlassSup2X /2 ;
+ fFGlowXHalfSize[2] = fFrameXHalfSize[2] ;
+
+ fFGlowXPosition[0] = 0 ;
+ fFGlowXPosition[1] = fAirSpaceFeeY /2 + fFGlowXHalfSize[1] ;
+ fFGlowXPosition[2] = fWarmThermoHalfSize[2] - fWarmBottomThickness - fFGlowXHalfSize[2] ;
+
+ fFGlowZHalfSize[0] = fFiberGlassSup2X /2 ;
+ fFGlowZHalfSize[1] = fAirSpaceFeeY /2 ;
+ fFGlowZHalfSize[2] = fFrameZHalfSize[2] ;
+
+ fFGlowZPosition[0] = fAirSpaceFeeX /2 + fFGlowZHalfSize[0] ;
+ fFGlowZPosition[1] = 0 ;
+ fFGlowZPosition[2] = fWarmThermoHalfSize[2] - fWarmBottomThickness - fFGlowXHalfSize[2] ;
+
+
+ // --- Air Gap for FEE ----
+
+ fFEEAirHalfSize[0] = fAirSpaceFeeX /2 ;
+ fFEEAirHalfSize[1] = fAirSpaceFeeY /2;
+ fFEEAirHalfSize[2] = fAirSpaceFeeZ /2;
+
+ fFEEAirPosition[0] = 0 ;
+ fFEEAirPosition[1] = 0 ;
+ fFEEAirPosition[2] = fWarmThermoHalfSize[2] - fWarmBottomThickness - fFEEAirHalfSize[2] ;
+
+ // --- Calculate the oveol dimentions of the EMC module
- fAirFilledBoxSize[0] = fTextolitBoxSize[0] - 2 * fTextolitBoxThickness[0] ;
- fAirFilledBoxSize[1] = fTextolitBoxSize[1] - fSecondUpperPlateThickness ;
- fAirFilledBoxSize[2] = fTextolitBoxSize[2] - 2 * fTextolitBoxThickness[2] ;
- fRotMatrixArray = 0;
+ fEMCParams[3] = fAlCoverParams[3] + fWarmAlCoverHalfSize[2] ; //Size out of beam
+ fEMCParams[0] = fAlCoverParams[0] ; //Upper size across the beam
+ fEMCParams[1] = (fAlCoverParams[1] - fAlCoverParams[0])*fEMCParams[3]/fAlCoverParams[3]
+ + fAlCoverParams[0] ; //Lower size across the beam
+ fEMCParams[2] = fWarmAlCoverHalfSize[1] ; // Size along the beam
+
+ fNPhi = fNStripX * fNCellsXInStrip ; //number of crystals across the beam
+ fNZ = fNStripZ * fNCellsZInStrip ; //number of crystals along the beam
}
-//____________________________________________________________________________
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff