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 #ifndef _HRPPD_
 #define _HRPPD_
 
 #include <Materials.h>
 
 // -- Overall HRPPD geometry ------------------------------------------------------------------
 //
 // A formfactor presently assumed for the final production;
 #define _HRPPD_TILE_SIZE_                 (120.0*mm)
 // Walls ~3mm thick are assumed;
 #define _HRPPD_OPEN_AREA_SIZE_            (114.0*mm)
 // Area covered by the photocathode in the geometry description; should be a good 
 // enough description of a fully efficient pixellated anode surface of the real sensors;
 // As of 2024/01/28: 108mm -> 104mm, since it is not clear whether Incom can deliver 80% 
 // OAR (Open Area Ratio) in their final sensor design; stick to 75% (first five EIC HRPPDs); 
 #define _HRPPD_ACTIVE_AREA_SIZE_          (104.0*mm)
 
 // Stick to 5mm fused silica (first five EIC HRPPDs), since it is not clear whether sapphire
 // windows will be used for a final production;
 #define _HRPPD_WINDOW_THICKNESS_            (5.0*mm)//(3.8mm)
 #define _HRPPD_WINDOW_MATERIAL_        m_FusedSilica//m_Sapphire
 
 // Anode base plate and walls; more or less close to reality;
 #define _HRPPD_CERAMIC_BODY_THICKNESS_      (9.0*mm)
 #define _HRPPD_BASEPLATE_THICKNESS_         (3.0*mm)
 
 // --------------------------------------------------------------------------------------------
 
 // Just to fit everything in;
 #define _HRPPD_CONTAINER_VOLUME_HEIGHT_    (32.0*mm)
 
 // -- Dead material ---------------------------------------------------------------------------
 //
 // Assume 100% coverage pure silver plating 15um thick, 4 layers total (pads on both sides 
 // and ground around signal layer); FIXME: not true for EIC HRPPDs;
 #define _HRPPD_PLATING_LAYER_THICKNESS_    (0.06*mm)
 
 // These are some random numbers to the moment; are only important for time-of-flight;
 //+#define _HRPPD_METALLIZATION_REFLECTIVITY_    (0.80)
 //+#define _HRPPD_METALLIZATION_ROUGHNESS_       (0.05)
 
 // Assume two plates, 600um thick, ~70% OAR as counted for MCP pore coverage;
 #define _EFFECTIVE_MCP_THICKNESS_     (2*0.6*mm*0.3)
 // FIXME: change to glass; should not really matter I guess;
 #define _EFFECTIVE_MCP_MATERIAL_       m_FusedSilica
 
 #define _READOUT_PCB_THICKNESS_             (2.0*mm)
 // Want to decrease material budget around the walls;
 #define _READOUT_PCB_SIZE_     (_HRPPD_OPEN_AREA_SIZE_ - 2.0*mm)
 
 // This stuff is pretty vague, merely a placeholder;
 #define _ASIC_SIZE_XY_                        (16.0)
 #define _ASIC_THICKNESS_                       (1.0)
 #define _ASIC_MATERIAL_                   m_Silicon
 
 // XY-size is calculated based on the ASIC size and location;
 #define _COLD_PLATE_THICKNESS_                 (1.5)
 #define _COLD_PLATE_MATERIAL_            m_Aluminum
 
 // Water cooling pipe;
 #define _COOLING_PIPE_INNER_DIAMETER_  (_INCH_*0.218)//3/8 )
 #define _COOLING_PIPE_WALL_THICKNESS_  (_INCH_*0.016)//1/16)
 #define _COOLING_PIPE_MATERIAL_          m_Titanium
 
 // --------------------------------------------------------------------------------------------
 
 // -- QE and Co -------------------------------------------------------------------------------
 //
 #define _USE_HRPPD_24_DATA_
 #ifdef _USE_HRPPD_24_DATA_
 #define _QE_DOWNSCALING_FACTOR_          (30.0/34.3)
 #else
 #define _QE_DOWNSCALING_FACTOR_          (30.0/37.0)
 #endif
 
 // Some reasonably optimistic number; assume that it includes an unknown 
 // HRPPD Collection Efficiency (CE) as well;
 #define _SAFETY_FACTOR_                       (0.70)
 
 // This number is 1.00 for HRPPDs (no SiPM-like fill factor or such); keep in place 
 // for historical reasons;
 #define _SENSOR_PLANE_GEOMETRIC_EFFICIENCY_   (1.00)
 // --------------------------------------------------------------------------------------------
 
 #endif

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