lcsim/src/org/lcsim/recon/tracking/digitization/sisim
diff -N SiVertexBarrelSensorSetup.java
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ SiVertexBarrelSensorSetup.java 19 Aug 2009 22:50:45 -0000 1.1
@@ -0,0 +1,100 @@
+package org.lcsim.recon.tracking.digitization.sisim;
+
+import hep.physics.matrix.BasicMatrix;
+import hep.physics.vec.BasicHep3Vector;
+import hep.physics.vec.VecOp;
+
+import java.util.List;
+
+import org.lcsim.detector.IDetectorElement;
+import org.lcsim.detector.IRotation3D;
+import org.lcsim.detector.ITranslation3D;
+import org.lcsim.detector.RotationPassiveXYZ;
+import org.lcsim.detector.Transform3D;
+import org.lcsim.detector.Translation3D;
+import org.lcsim.detector.solids.IPolyhedron;
+import org.lcsim.detector.solids.Polygon3D;
+import org.lcsim.detector.tracker.silicon.ChargeCarrier;
+import org.lcsim.detector.tracker.silicon.SiPixels;
+import org.lcsim.detector.tracker.silicon.SiSensor;
+import org.lcsim.detector.tracker.silicon.SiSensorElectrodes;
+import org.lcsim.geometry.Detector;
+import org.lcsim.geometry.compact.Subdetector;
+import org.lcsim.geometry.subdetector.SiTrackerBarrel;
+import org.lcsim.util.Driver;
+
+public class SiVertexBarrelSensorSetup extends Driver
+{
+ String subdetectorName;
+
+ public SiVertexBarrelSensorSetup()
+ {}
+
+ public SiVertexBarrelSensorSetup(String subdetectorName)
+ {
+ this.subdetectorName = subdetectorName;
+ }
+
+ public void setSubdetectorName(String subdetectorName)
+ {
+ this.subdetectorName = subdetectorName;
+ }
+
+ public void detectorChanged(Detector detector)
+ {
+ if (subdetectorName == null)
+ throw new RuntimeException("The subdetectorName was not set.");
+
+ Subdetector subdetector = detector.getSubdetector(subdetectorName);
+ if (subdetector instanceof SiTrackerBarrel)
+ setupSensorDetectorElements(subdetector);
+ else
+ throw new RuntimeException("The subdetector " + subdetectorName + " is not an instance of SiTrackerBarrel.");
+ }
+
+ private void setupSensorDetectorElements(Subdetector subdet)
+ {
+ System.out.println(this.getClass().getCanonicalName() + " - Setting up sensors for " + subdet.getName() + " ...");
+
+ for ( IDetectorElement layer : subdet.getDetectorElement().getChildren() )
+ {
+ for ( IDetectorElement module : layer.getChildren() )
+ {
+ List<SiSensor> sensors = module.findDescendants(SiSensor.class);
+
+ if (sensors.size() == 0)
+ throw new RuntimeException("No sensors found in module.");
+
+ SiSensor sensor = sensors.get(0);
+ IPolyhedron sensor_solid = (IPolyhedron) sensor.getGeometry().getLogicalVolume().getSolid();
+
+ Polygon3D top_side = sensor_solid.getFacesNormalTo(new BasicHep3Vector(0, 0, 1)).get(0);
+ Polygon3D bot_side = sensor_solid.getFacesNormalTo(new BasicHep3Vector(0, 0, -1)).get(0);
+
+ // collect electrons on the top side
+ sensor.setBiasSurface(ChargeCarrier.HOLE, bot_side);
+ sensor.setBiasSurface(ChargeCarrier.ELECTRON, top_side);
+
+ // Add sense and readout electrodes
+ ITranslation3D electrodes_position = new Translation3D(VecOp.mult(-top_side.getDistance(), top_side.getNormal())); // translate to p_side
+ IRotation3D electrodes_rotation = new RotationPassiveXYZ(0.0, 0.0, 0.0);
+ // no rotation (global x-y = local x-y for axial strips)
+
+ Transform3D electrodes_transform = new Transform3D(electrodes_position, electrodes_rotation);
+
+ // Define the pixel electrodes...collecting holes;
+ SiSensorElectrodes readout_electrodes = new SiPixels(ChargeCarrier.ELECTRON, 0.05, 0.25, sensor, electrodes_transform);
+ SiSensorElectrodes sense_electrodes = new SiPixels(ChargeCarrier.ELECTRON, 0.05, 0.25, sensor, electrodes_transform);
+
+ // Tell the sensor about the electrodes
+ sensor.setSenseElectrodes(sense_electrodes);
+ sensor.setReadoutElectrodes(readout_electrodes);
+
+ // Define the transfer efficiency from sense electrodes to readout electrodes
+ // For pixels, we do a direct transfer of charge from sense electrodes to readout electrodes
+ double[][] transfer_efficiencies = {{1.0}};
+ sensor.setTransferEfficiencies(ChargeCarrier.ELECTRON, new BasicMatrix(transfer_efficiencies));
+ }
+ }
+ }
+}
lcsim/src/org/lcsim/recon/tracking/digitization/sisim
diff -N SiVertexEndcapSensorSetup.java
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ SiVertexEndcapSensorSetup.java 19 Aug 2009 22:50:45 -0000 1.1
@@ -0,0 +1,140 @@
+package org.lcsim.recon.tracking.digitization.sisim;
+
+import hep.physics.matrix.BasicMatrix;
+import hep.physics.vec.BasicHep3Vector;
+import hep.physics.vec.VecOp;
+
+import java.util.List;
+
+import org.lcsim.detector.IDetectorElement;
+import org.lcsim.detector.IRotation3D;
+import org.lcsim.detector.ITranslation3D;
+import org.lcsim.detector.RotationPassiveXYZ;
+import org.lcsim.detector.Transform3D;
+import org.lcsim.detector.Translation3D;
+import org.lcsim.detector.solids.IPolyhedron;
+import org.lcsim.detector.solids.Polygon3D;
+import org.lcsim.detector.tracker.silicon.ChargeCarrier;
+import org.lcsim.detector.tracker.silicon.SiPixels;
+import org.lcsim.detector.tracker.silicon.SiSensor;
+import org.lcsim.detector.tracker.silicon.SiSensorElectrodes;
+import org.lcsim.geometry.Detector;
+import org.lcsim.geometry.compact.Subdetector;
+import org.lcsim.geometry.subdetector.SiTrackerEndcap;
+import org.lcsim.geometry.subdetector.SiTrackerEndcap2;
+
+public class SiVertexEndcapSensorSetup
+{
+
+ String subdetectorName;
+
+ public SiVertexEndcapSensorSetup()
+ {}
+
+ public SiVertexEndcapSensorSetup(String subdetectorName)
+ {
+ this.subdetectorName = subdetectorName;
+ }
+
+ public void setSubdetectorName(String subdetectorName)
+ {
+ this.subdetectorName = subdetectorName;
+ }
+
+ public void detectorChanged(Detector detector)
+ {
+ if (subdetectorName == null)
+ throw new RuntimeException("The subdetectorName was not set.");
+
+ Subdetector subdetector = detector.getSubdetector(subdetectorName);
+ if (subdetector instanceof SiTrackerEndcap || subdetector instanceof SiTrackerEndcap2)
+ setupSensorDetectorElements(subdetector);
+ else
+ throw new RuntimeException("The subdetector " + subdetectorName + " is not an instance of SiTrackerBarrel.");
+ }
+
+ private void setupSensorDetectorElements(Subdetector subdet)
+ {
+ for (IDetectorElement endcap : subdet.getDetectorElement().getChildren()) {
+ for (IDetectorElement layer : endcap.getChildren())
+ {
+ int nwedges = layer.getChildren().size();
+ for (IDetectorElement wedge : layer.getChildren())
+ {
+ for (IDetectorElement module : wedge.getChildren())
+ {
+ // find sensors on the module
+ List<SiSensor> sensors = module.findDescendants(SiSensor.class);
+
+ // require that sensors are found
+ if (sensors.size() == 0)
+ throw new RuntimeException("No sensors found in module.");
+
+ // loop over sensors (can be double-sided)
+ for (SiSensor sensor : sensors)
+ {
+ // get sensor field from id
+ int sensorId = sensor.getIdentifierHelper().getValue(sensor.getIdentifier(), "sensor");
+
+ // Get the sensor solid.
+ IPolyhedron sensor_solid = (IPolyhedron) sensor.getGeometry().getLogicalVolume().getSolid();
+
+ // Get solids for inner and outer surfaces.
+ Polygon3D inner_surface = sensor_solid.getFacesNormalTo(new BasicHep3Vector(0, -1, 0)).get(0);
+ Polygon3D outer_surface = sensor_solid.getFacesNormalTo(new BasicHep3Vector(0, 1, 0)).get(0);
+
+ //
+ // Determine p and n sides based on sensor id.
+ //
+
+ Polygon3D p_side;
+ Polygon3D n_side;
+ int side;
+
+ if (sensorId == 0) // inner sensor
+ {
+ p_side = inner_surface;
+ n_side = outer_surface;
+ side = 1;
+ }
+ else // outer sensor
+ {
+ p_side = outer_surface;
+ n_side = inner_surface;
+ side = -1;
+ }
+
+ double strip_angle = Math.PI / nwedges;
+
+ // Compute the geometric propertes of the electrodes.
+ ITranslation3D electrodes_position = new Translation3D(VecOp.mult(-p_side.getDistance(), new BasicHep3Vector(0, 0, 1))); // translate to outside of polygon
+ IRotation3D electrodes_rotation = new RotationPassiveXYZ(side * (Math.PI / 2), 0, strip_angle); //
+ Transform3D electrodes_transform = new Transform3D(electrodes_position, electrodes_rotation);
+
+ //
+ // Pixel-specific code starts here.
+ //
+
+ // Set the bias surfaces.
+ sensor.setBiasSurface(ChargeCarrier.ELECTRON, p_side);
+ sensor.setBiasSurface(ChargeCarrier.HOLE, n_side);
+
+ // Define the pixel electrodes.
+ SiSensorElectrodes readout_electrodes = new SiPixels(ChargeCarrier.ELECTRON, 0.05, 0.25, sensor, electrodes_transform);
+ SiSensorElectrodes sense_electrodes = new SiPixels(ChargeCarrier.ELECTRON, 0.05, 0.25, sensor, electrodes_transform);
+
+ // Tell the sensor about the electrodes.
+ sensor.setSenseElectrodes(sense_electrodes);
+ sensor.setReadoutElectrodes(readout_electrodes);
+
+ // Define the transfer efficiency from sense electrodes to readout electrodes.
+ // For pixels, we do a direct transfer of charge from sense electrodes to readout electrodes.
+ double[][] transfer_efficiencies = {{1.0}};
+ sensor.setTransferEfficiencies(ChargeCarrier.ELECTRON, new BasicMatrix(transfer_efficiencies));
+ }
+ }
+ }
+ }
+ }
+ }
+}
\ No newline at end of file
