PndDiscPhotodetector.cxx

Go to the documentation of this file.

//-------------------------------------------------------------------------
// Author:      Oliver Merle (Oliver.Merle@exp2.physik.uni-giessen.de)
// Changes:     Mustafa Schmidt (Mustafa.A.Schmidt@physik.uni-giessen.de)
// Date:        30.11.2015
// Description: Definition of photo sensors
//-------------------------------------------------------------------------


#include "PndDiscPhotodetector.h"
#include "PndDiscSensorGrid.h"

#include "FairLogger.h"



DiscDIRC_Photodetector::DiscDIRC_Photodetector() {
    Init(DESIGN_SIPM);
}


DiscDIRC_Photodetector::DiscDIRC_Photodetector(DesignID design_id) {
    Init(design_id);
}


void DiscDIRC_Photodetector::Init(DesignID design_id) {
    using namespace SensorGrid;

    if(design_id == DESIGN_SIPM) {
        // 210 stripes SiPM sensor (acceptance gap due to bonding is covered with stripes !).
        MultipleGrids * new_sensor_grid = new MultipleGrids();
        if(new_sensor_grid == 0) LOG(FATAL) << "Allocation of sensor failed.";

        BasicGrid * grid = NULL;

        grid = new BasicGrid( -1.5900/2.0, 1.5900/2.0, 1.0,    1  ,
                              -0.672,      0.0064,     0.0064, 105 );
        if(grid == 0) LOG(FATAL) << "Allocation of sensor failed.";

        new_sensor_grid->AddGrid(grid);


        grid = new BasicGrid(  0.0,        1.5900/2.0, 1.0,    1  ,
                              -0.672,      0.0064,     0.0064, 105 );
        if(grid == 0) LOG(FATAL) << "Allocation of sensor failed.";

        grid->SetUserColumnOffset(1);
        new_sensor_grid->AddGrid(grid);


        grid = new BasicGrid( -1.5900/2.0, 1.5900/2.0, 1.0,    1  ,
                               0.0,        0.0064,     0.0064, 105 );
        if(grid == 0) LOG(FATAL) << "Allocation of sensor failed.";

        grid->SetUserRowOffset(105);
        new_sensor_grid->AddGrid(grid);


        grid = new BasicGrid(  0.0,        1.5900/2.0, 1.0,    1  ,
                               0.0,        0.0064,     0.0064, 105 );
        if(grid == 0) LOG(FATAL) << "Allocation of sensor failed.";

        grid->SetUserColumnOffset(1);
        grid->SetUserRowOffset(105);
        new_sensor_grid->AddGrid(grid);

        double active_cell_fraction = 0.9;
        double SPAD_DCR = 25.0; // Hz
        SensorGrid::SensorGridPhotodetector::Init(new_sensor_grid, false, active_cell_fraction, 256. * SPAD_DCR, 0.060);
    }
    else if(design_id == DESIGN_LRD) {
        // Implement Low Rate Design ...
        BasicGrid * grid = NULL;

        // digitization grid 3 x 100 for 50 x 50 mm^2 active area (Planacon)
        grid = new BasicGrid( -2.55, 1.6, 1.7,  3  ,     // X: 1 mm gap between the 16 mm wide stripes
                              -2.5,  0.05, 0.05,  100 ); // Y: 100 stripes without gap
        if(grid == 0) LOG(FATAL) << "Allocation of sensor failed.";

        SensorGrid::SensorGridPhotodetector::Init(grid, false, 0.7, 1.0, 0.050);
    }
}