d7/d5c/geometry_2MAPS_2maps-lib_8C_source.html

//

//  Crappy, but perhaps the easiest;

//


void DefinitionParser(void *ptr)

{

  MapsGeoParData *maps = (MapsGeoParData*)ptr;


  // Simpliest case wins;

#ifdef _BEAM_LINE_UNIFORM_GEOMETRY_

  maps->SetGeometryType(EicGeoParData::SimpleStructure);

#endif

#ifdef _NO_STRUCTURE_GEOMETRY_

  maps->SetGeometryType(EicGeoParData::NoStructure);

#endif


#ifdef _USE_TRIANGULAR_ASSEMBLIES_

  maps->UseTriangularAssemblies(true);

#endif


#ifdef _TEST_VERSION_

  maps->SetTestGeometryFlag();

#endif


  // Let MapsGeoParData base class instance know, which elements are wanted;

  // this set of #define and respective call looks strange, but visually it

  // is more convenient to check #define statements at the beginning of the

  // script rather than to check several lines with functional calls in the text;

#ifdef _WITH_MOUNTING_RINGS_

  maps->WithMountingRings(true);

#endif

#ifdef _WITH_ENFORCEMENT_BRACKETS_

  maps->WithEnforcementBrackets(true);

#endif

#ifdef _WITH_EXTERNAL_PIPES_

  maps->WithExternalPipes(true);

#endif

} // DefinitionParser()


void SetMapsColors(void *ptr)

{

  EicNamePatternHub<Color_t> *ctable = ((EicGeoParData*)ptr)->GetColorTable();


  // Specify color preferences; NB: order of calls matters!;

  ctable->AddPatternMatch("WaterPipe",      kYellow);

  ctable->AddPatternMatch("Water",          kBlue);

  ctable->AddPatternMatch("StaveBracket",   kOrange);

  ctable->AddPatternMatch("Beam",           kBlack);

  ctable->AddPatternMatch("ColdPlate",      kYellow);

  ctable->AddPatternMatch("MimosaCore",     kYellow);

  ctable->AddPatternMatch("CellFlexLayer",  kGreen+2);

  ctable->AddPatternMatch("AluStrips",      kGray);

  ctable->AddPatternMatch("MountingRing",   kMagenta+1);

} // SetMapsColors()


void *ConfigureAliceCell()

{

  // First want to cook the basic building block - Mimosa chip assembly; the

  // rest is composed out of these blocks in a LEGO fashion;

  MapsMimosaAssembly *ibcell = new MapsMimosaAssembly();


  //  !!!!!!

  //

  // NB: these parameters were carefully tuned to match ALICE ITS upgrade design;

  //     do NOT touch unless you understand what you are doing;

  //

  //  !!!!!!


  // Air container volume parameters sufficient to pack all the stuff;

  ibcell->mAssemblyBaseWidth           =   17.500;

  ibcell->mAssemblySideSlope           =   30.000;

  ibcell->mChipToChipGap               =    0.100;


  // Space structure;

  ibcell->mApexEnforcementBeamDiameter =    0.400;

  ibcell->mEnforcementStripWidth       =    0.500;

  ibcell->mEnforcementStripThickness   =    0.200;

  ibcell->mBaseEnforcementBeamWidth    =    1.200;

  ibcell->mSideWallThickness           =    0.050;


  // Basic Mimosa 34 chip parameters; pixel size does not matter here (will play

  // a role during digitization only);

  ibcell->mChipLength                  =   30.000;

  ibcell->mChipWidth                   =   15.000;

  // Well, ALICE rad.length scan plot indicates, that it is equal to the chip width;

  // NB: do NOT try to set this value to be larger than mChipWidth (unless modify

  // assembly and stave width calculation):

  ibcell->mAssemblyDeadMaterialWidth   =   15.000;

  ibcell->mChipThickness               =    0.050;

  ibcell->mChipActiveZoneThickness     =    0.018;

  ibcell->mChipDeadAreaWidth           =    2.000;


  // Layers at the base of the assembly; kapton and effective alu thinckness;

  ibcell->mFlexCableKaptonThickness    =    0.100;

  // Based on the ALICE rad.length scan one can conclude, that 50um is too much;

  // I guess these strips occupy only a fraction of the assembly width;

  ibcell->mFlexCableAluThickness       =    0.020;

  // Assume just 'Carbon fiber + paper' on p.55 of ALICE ITS TDR) -> 30+70um;

  ibcell->mColdPlateThickness          =    0.100;


  // Water pipes; assume 2 parallel pipes; 25um thick walls;

  ibcell->mWaterPipeInnerDiameter      =    1.024;

  ibcell->mWaterPipeWallThickness      =    0.025;


  return ibcell;

} // ConfigureAliceCell()