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Recoil detector #504

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926b240
New recoil detector for RGH (2 sectors, 3 layers/sector of urwell, x/…
silvianic Feb 3, 2025
6982871
Merge branch 'development' into recoil_detector
raffaelladevita Feb 3, 2025
93a0b03
Merge branch 'development' into recoil_detector
silvianic Feb 20, 2025
0935b51
Fixed conflicts
silvianic Feb 20, 2025
1c1af4e
corrected authors
silvianic Feb 26, 2025
6775f9c
added RECOIL.xml in bankdefs
silvianic Feb 28, 2025
4860756
corrected RECOIL.xml
silvianic Feb 28, 2025
3d08f3b
Cleaned up codes and fixed shift of one strip appearing in reconstruc…
silvianic Mar 17, 2025
beef962
modified geometry to keep into account the constraints frm HTCC, fixe…
silvianic Mar 20, 2025
a6bfa6f
merged development
raffaelladevita Oct 29, 2025
d7c3821
Merge branch 'development' into recoil_detector
raffaelladevita Oct 29, 2025
326f569
Merge branch 'development' into recoil_detector
raffaelladevita Dec 19, 2025
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35 changes: 5 additions & 30 deletions common-tools/clas-jcsg/src/main/java/org/jlab/detector/geant4/v2/recoil/RecoilConstants.java
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Expand Up @@ -2,7 +2,6 @@


import org.jlab.detector.calib.utils.DatabaseConstantProvider;
import org.jlab.geom.prim.Point3D;


public class RecoilConstants {
Expand All @@ -15,24 +14,15 @@ public class RecoilConstants {
public final static int NLAYERS = 2; //number of layers
public final static int NCHAMBERS = 1; //number of chambers in a sector

public final static double HORIZONTHAL_OPENING_ANGLE = 34.;
public final static double HORIZONTHAL_STARTING_ANGLE = 40.;
public final static double HORIZONTHAL_OPENING_ANGLE = 29.;
public final static double VERTICAL_OPENING_ANGLE = 50.;
public final static double RADIUS[] = {33.5,55.5,79.5};
public final static double RADIUS[] = {44,72,100};
public final static double WIDTH[] = new double[NMAXREGIONS];
public final static double HEIGHT[] = new double[NMAXREGIONS];

public final static double THTILT = 0; // theta tilt (deg)
/* public final static double XENLARGEMENT = 0.5; // cm
public final static double YENLARGEMENT = 1.; // cm
public final static double ZENLARGEMENT = 0.1; // cm

// Sector geometrical parameters
public final static double THOPEN = 34.; // opening angle between endplate planes (deg)
public final static double THTILT = 0; // theta tilt (deg)
public final static double THMIN = 4.694; // polar angle to the base of first chamber (deg)
public final static double SECTORHEIGHT = 146.21; //height of each sector (cm)
public final static double DX0CHAMBER0 = 5.197; // halfbase of chamber 1 (cm)*/

// Chamber volumes and materials (units are cm)
public final static double[] CHAMBERVOLUMESTHICKNESS = {0.0025, 0.0005,0.3, // window
0.0025, 0.0005,0.4, // cathode
Expand All @@ -49,15 +39,6 @@ public class RecoilConstants {
"readout1_glue", "readout1_Cu", "readout1_kapton", "readout2_glue", "readout2_Cu", "readout2_kapton", "readout3_glue",
"support_skin1_g10", "support_honeycomb_nomex", "support_skin2_g10"};

// URWELL position in the CLAS12 frame
/* public final static double TGT2DC0 = 228.078; // cm
// public final static double URWELL2DC0 = 2; // cm
public final static double URWELL2DC0[] = new double[NMAXREGIONS];
public final static double DIST2TGT[] = new double[NMAXREGIONS];
public final static double W2TGT[] = new double[NMAXREGIONS];;
public final static double YMIN[] = new double[NMAXREGIONS];
public final static double ZMIN[] = new double[NMAXREGIONS];*/

public final static double PITCH = 0.1 ; // cm
public final static double STEREOANGLE = 90; // deg

Expand Down Expand Up @@ -95,14 +76,8 @@ public static synchronized void load( DatabaseConstantProvider cp )

for (int i=0; i<NMAXREGIONS; i++){

/* URWELL2DC0[i] = -2.+i*1.3;
DIST2TGT[i] = (TGT2DC0+URWELL2DC0[i]);
W2TGT[i] = DIST2TGT[i]/Math.cos(Math.toRadians(THTILT-THMIN));
YMIN[i]= W2TGT[i]*Math.sin(Math.toRadians(THMIN)); // distance from the base chamber1 and beamline
ZMIN[i] = W2TGT[i]*Math.cos(Math.toRadians(THMIN));
*/
WIDTH[i]=2.*RADIUS[i]*Math.sin(Math.toRadians(HORIZONTHAL_OPENING_ANGLE)/2);
HEIGHT[i]=RADIUS[i]*Math.tan(Math.toRadians(VERTICAL_OPENING_ANGLE)/2);
WIDTH[i]=2.*RADIUS[i]*Math.tan(Math.toRadians(HORIZONTHAL_OPENING_ANGLE)/2);
HEIGHT[i]=2*RADIUS[i]*Math.tan(Math.toRadians(VERTICAL_OPENING_ANGLE)/2);
}
}
}
56 changes: 12 additions & 44 deletions ...tools/clas-jcsg/src/main/java/org/jlab/detector/geant4/v2/recoil/RecoilGeant4Factory.java
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Expand Up @@ -2,18 +2,10 @@

import eu.mihosoft.vrl.v3d.Vector3d;
import org.jlab.detector.geant4.v2.Geant4Factory;
import org.jlab.detector.volume.G4Trap;
import org.jlab.detector.volume.G4World;
import org.jlab.detector.volume.G4Box;
import org.jlab.detector.volume.G4Trd;
import org.jlab.detector.volume.Geant4Basic;
import org.jlab.detector.calib.utils.DatabaseConstantProvider;
import org.jlab.geom.prim.Line3D;
import org.jlab.geom.prim.Point3D;
import org.jlab.geom.prim.Plane3D;
import org.jlab.geom.prim.Vector3D;
import org.jlab.geometry.prim.Line3d;
import org.jlab.geometry.prim.Straight;

/**
* Generate GEANT4 volume for the RECOIL detector
Expand Down Expand Up @@ -78,18 +70,11 @@ public double[] getSectorDimensions(int iregion){

int i=iregion;
double[] SectorDimensions = new double[5];

SectorDimensions[0] = RecoilConstants.WIDTH[i]/2+1.;
SectorDimensions[1] = RecoilConstants.HEIGHT[i]/2+1.;
SectorDimensions[2] = (this.getChamberThickness())/2.+1;

/* SectorDimensions[0] = (this.getChamberThickness())/2. + RecoilConstants.ZENLARGEMENT ;
SectorDimensions[1] = RecoilConstants.SECTORHEIGHT/2 + RecoilConstants.YENLARGEMENT ;
SectorDimensions[2] = RecoilConstants.DX0CHAMBER0 + RecoilConstants.XENLARGEMENT ;
SectorDimensions[3] = (SectorDimensions[1]*2)*Math.tan(Math.toRadians(RecoilConstants.THOPEN/2))+SectorDimensions[2];
SectorDimensions[4] = Math.toRadians(RecoilConstants.THTILT);
*/

SectorDimensions[0] = RecoilConstants.WIDTH[i]/2;
SectorDimensions[1] = RecoilConstants.HEIGHT[i]/2;
SectorDimensions[2] = (this.getChamberThickness())/2.;

return SectorDimensions;
}

Expand All @@ -108,9 +93,9 @@ public Vector3d getCenterCoordinate(int isector, int iregion)
int ir=iregion;
Vector3d vCenter = new Vector3d(0, 0, 0);

vCenter.x = (-1+is*2)*(RecoilConstants.RADIUS[iregion])*Math.sin(Math.toRadians(1.5*RecoilConstants.HORIZONTHAL_OPENING_ANGLE));
vCenter.x = (-1+is*2)*(RecoilConstants.RADIUS[iregion])*Math.sin(Math.toRadians(RecoilConstants.HORIZONTHAL_OPENING_ANGLE/2+RecoilConstants.HORIZONTHAL_STARTING_ANGLE));
vCenter.y = 0;
vCenter.z =RecoilConstants.RADIUS[iregion]*Math.cos(Math.toRadians(1.5*RecoilConstants.HORIZONTHAL_OPENING_ANGLE));
vCenter.z =RecoilConstants.RADIUS[iregion]*Math.cos(Math.toRadians(RecoilConstants.HORIZONTHAL_OPENING_ANGLE/2+RecoilConstants.HORIZONTHAL_STARTING_ANGLE));
return vCenter;
}

Expand All @@ -132,29 +117,21 @@ public Geant4Basic createSector(int isector, int iregion, int Nchambers) {
// baricenter coordinate in CLAS12 frame

Vector3d vCenter = this.getCenterCoordinate(isector,iregion);
// Sector construction
/* Geant4Basic sectorVolume = new G4Trap("region_Recoil_" + (iregion + 1) + "_s" + (isector + 1),
regionDZ, -regionThilt, Math.toRadians(90.0),
regionDY, regionDX0, regionDX1, 0.0,
regionDY, regionDX0, regionDX1, 0.0);*/

Geant4Basic sectorVolume = new G4Box("region_recoil_" + (iregion + 1) + "_s" + (isector + 1),hlx,hly,hlz);
/* sectorVolume.rotate("yxz", 0.0, regionThilt, Math.toRadians(90.0 - isector * 60.0));*/
sectorVolume.rotate("yxz",(-1+isector*2)*Math.toRadians(1.5*RecoilConstants.HORIZONTHAL_OPENING_ANGLE+270),0,0);

//sectorVolume.rotate("yxz",(-1+isector*2)*Math.toRadians((RecoilConstants.HORIZONTHAL_OPENING_ANGLE/2+RecoilConstants.HORIZONTHAL_STARTING_ANGLE)),0,0);
if(isector==0)sectorVolume.rotate("yxz",Math.toRadians((RecoilConstants.HORIZONTHAL_OPENING_ANGLE/2+RecoilConstants.HORIZONTHAL_STARTING_ANGLE)),0,0);
if(isector==1)sectorVolume.rotate("yxz",Math.toRadians(-(RecoilConstants.HORIZONTHAL_OPENING_ANGLE/2+RecoilConstants.HORIZONTHAL_STARTING_ANGLE)),0,0);
sectorVolume.translate(vCenter.x, vCenter.y, vCenter.z);
sectorVolume.setId(isector + 1, iregion +1, 0, 0);

// Chambers construction
for (int ich = 0; ich < Nchambers; ich++) {

// double y_chamber = (2*ich+1)*(RecoilConstants.SECTORHEIGHT/RecoilConstants.NCHAMBERS/2+0.05);

Geant4Basic chamberVolume = this.createChamber(isector, iregion, ich);

chamberVolume.setName("rg" + (iregion + 1) + "_s" + (isector + 1) + "_c" + (ich +1));

Geant4Basic chamberVolume = this.createChamber(isector, iregion, ich);
chamberVolume.setName("rg" + (iregion + 1) + "_s" + (isector + 1) + "_c" + (ich +1));
chamberVolume.setMother(sectorVolume);
//chamberVolume.translate(0.0,y_chamber-RecoilConstants.SECTORHEIGHT/2,0. );
chamberVolume.setId(isector + 1, iregion + 1, ich +1, 0);
}

Expand Down Expand Up @@ -235,15 +212,6 @@ public double[] getChamber_daughter_Dimensions(int iregion, int ichamber){
int i = iregion;
double[] chamber_daughter_Dimensions = new double[3];

/* chamber_daughter_Dimensions[0] = RecoilConstants.SECTORHEIGHT/RecoilConstants.NCHAMBERS/2 ;
chamber_daughter_Dimensions[1] = (ichamber*RecoilConstants.SECTORHEIGHT/RecoilConstants.NCHAMBERS)
* Math.tan(Math.toRadians(RecoilConstants.THOPEN/2.))
+ RecoilConstants.DX0CHAMBER0 ;

chamber_daughter_Dimensions[2] = (RecoilConstants.SECTORHEIGHT/RecoilConstants.NCHAMBERS)
* Math.tan(Math.toRadians(RecoilConstants.THOPEN/2.))+chamber_daughter_Dimensions[1];
*/

chamber_daughter_Dimensions[0] = RecoilConstants.WIDTH[i]/2;
chamber_daughter_Dimensions[1] = RecoilConstants.HEIGHT[i]/2;

Expand Down
95 changes: 10 additions & 85 deletions ...-tools/clas-jcsg/src/main/java/org/jlab/detector/geant4/v2/recoil/RecoilStripFactory.java
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,6 @@
import org.jlab.detector.hits.DetHit;
import org.jlab.detector.volume.Geant4Basic;
import org.jlab.geom.prim.Line3D;
import org.jlab.geom.prim.Plane3D;
import org.jlab.geom.prim.Point3D;
import org.jlab.geom.prim.Vector3D;
import org.jlab.geometry.prim.Line3d;
Expand All @@ -23,7 +22,6 @@ public final class RecoilStripFactory {
private RecoilGeant4Factory factory;
private IndexedList<Line3D> globalStrips = new IndexedList(3);
private IndexedList<Line3D> localStrips = new IndexedList(3);
private IndexedList<Plane3D> planeStrips = new IndexedList(3);
private int nRegions;
private int nSectors;
private int nChambers;
Expand Down Expand Up @@ -73,7 +71,6 @@ public void init(DatabaseConstantProvider cp, int regions) {
nChambers = RecoilConstants.NCHAMBERS;
nLayers = RecoilConstants.NLAYERS;
this.fillStripLists();
// this.fillPlaneLists();
}

/**
Expand Down Expand Up @@ -117,7 +114,7 @@ public int getNStripChamber(int ichamber, int regions) {
int nAB = (int) (2 * xHalf / RecoilConstants.PITCH);
int nAC = (int) (2 * yHalf / RecoilConstants.PITCH);

int nStrips = nAB + nAC;
int nStrips = nAB + nAC +1;

return nStrips;
}
Expand Down Expand Up @@ -191,7 +188,8 @@ private Line3d createStrip(int sector, int region, int layer, int strip) {
}
// ID of the strip
int nS = (int) (DY / RecoilConstants.PITCH);
int nCStrip = nS + (cStrip - 1);
// int nCStrip = nS + (cStrip - 1);
int nCStrip = nS + (cStrip);
double c = nCStrip * RecoilConstants.PITCH;

// Take 2 points in the strip straight line. They needs to define Line object
Expand Down Expand Up @@ -308,9 +306,10 @@ private void fillStripLists() {
DY = -yHalf;
}
int nS = (int) (DY / RecoilConstants.PITCH);
int nCStrip = nS + (cStrip - 1);
// int nCStrip = nS + (cStrip - 1);
int nCStrip = nS + (cStrip);
double c = nCStrip * RecoilConstants.PITCH;
if (((layer) % 2 == 0 && c>-xHalf && c<xHalf)||((layer) % 2 != 0 && c>-yHalf && c<yHalf))
if (((layer) % 2 == 0 && c>=-xHalf && c<=xHalf)||((layer) % 2 != 0 && c>=-yHalf && c<=yHalf))
{

Line3d line = this.createStrip(sector, region,layer, strip);
Expand Down Expand Up @@ -339,55 +338,12 @@ private void fillStripLists() {
public Line3D toLocal(int sector, Line3D global) {
Line3D local = new Line3D();
local.copy(global);
local.rotateY((-1+sector*2)*Math.toRadians(1.5*RecoilConstants.HORIZONTHAL_OPENING_ANGLE+270));

if(sector==0)local.rotateY((Math.toRadians(RecoilConstants.HORIZONTHAL_OPENING_ANGLE/2+RecoilConstants.HORIZONTHAL_STARTING_ANGLE)));
if(sector==1)local.rotateY(-(Math.toRadians(RecoilConstants.HORIZONTHAL_OPENING_ANGLE/2+RecoilConstants.HORIZONTHAL_STARTING_ANGLE)));
return local;
}

private void fillPlaneLists() {

for(int ir=0; ir<nRegions; ir++) {
int region = ir+1;
for(int is=0; is<nSectors; is++) {
int sector = is+1;
for(int il=0; il<nLayers; il++) {

int layer = (2*region-1) + il;

for(int ic=0; ic<this.getNStripSector(); ic++) {
int strip = ic+1;

int chamberIndex = getChamberIndex(strip);
double[] dim = factory.getChamber_daughter_Dimensions(region-1,chamberIndex);

double yHalf = dim[1];
double xHalf = dim[0];
int cStrip = this.getLocalStripId(strip);
double DY = -xHalf; //v strip
if (layer % 2 != 0) { //u strip
DY = -yHalf;
}
int nS = (int) (DY / RecoilConstants.PITCH);
int nCStrip = nS + (cStrip - 1);
double c = nCStrip * RecoilConstants.PITCH;
if ((layer % 2 == 0 && c>-xHalf && c<xHalf)||(layer % 2 != 0 && c>-yHalf && c<yHalf))
{
Plane3D plane = this.createPLane(sector, region, layer, strip);
this.planeStrips.add(plane, sector, layer, strip);
}
}
}
}
}
}


public Plane3D getPlane(int sector, int layer, int strip){

return planeStrips.getItem(sector, layer, strip);
}



/**
* Provides the 3D line for the given strip in the CLAS12 frame
* @param sector (1-6)
Expand All @@ -411,31 +367,6 @@ public Line3D getTiltedStrip(int sector, int layer, int strip) {
return localStrips.getItem(sector, layer, strip);
}

private Plane3D createPLane(int sector, int region, int layer, int strip){

int chamber = this.getChamberIndex(strip);
int LastStripID = this.getNStripChamber(chamber, region);

Line3D Last_strip = this.getStrip(sector, layer, LastStripID);

Line3D First_strip = this.getStrip(sector, layer, 1);

Line3D test_strip = this.getStrip(sector, layer, 1);

Vector3D Dir_strip_test = First_strip.originDir();

/* Line orthogonal to the 2 strip */
Line3D line = First_strip.distance(Last_strip);

Vector3D Dir_line = line.originDir();

Vector3D normal_plane = Dir_strip_test.cross(Dir_line);

Plane3D plane = new Plane3D(First_strip.origin(), normal_plane);

return plane;
}

public static void main(String[] args) {
DatabaseConstantProvider cp = new DatabaseConstantProvider(11, "default");

Expand All @@ -444,13 +375,7 @@ public static void main(String[] args) {
RecoilGeant4Factory factory = new RecoilGeant4Factory(cp,1);

RecoilStripFactory factory2 = new RecoilStripFactory(cp,1);

// Plane3D plane = factory2.getPlane(6, 1, 200);
//System.out.println(plane.toString());

//int strip =20;
//System.out.println((strip) + " " + factory2.getLocalStripId(strip) + "\n" + factory2.getChamberStrip(1, 6,1,2,strip)) ;


for(int istrip=0; istrip<factory2.getNStripSector(); istrip++) {
System.out.println((istrip+1) + " " + factory2.getChamberIndex(istrip+1) + "\n" + factory2.getStrip(1, 1, istrip+1) + "\n" + factory2.getStrip(1, 2, istrip+1));}

Expand Down
40 changes: 40 additions & 0 deletions etc/bankdefs/clas12/RECOIL.xml
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@raffaelladevita raffaelladevita Dec 19, 2025

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This file should be removed since these banks were only used by old gemc versions with EVIO output

Original file line number Diff line number Diff line change
@@ -0,0 +1,40 @@
<evio_dictionary>
<bank name="RECOIL" tag="2600" info="Simulated BMT Hit Information">
<section name="true" tag="2601" num="0" info="True Values">
<column name="pid" num="1" type="int32" info="ID of the first particle entering the sensitive volume"/>
<column name="mpid" num="2" type="int32" info="ID of the mother of the first particle entering the sensitive volume"/>
<column name="tid" num="3" type="int32" info="Track ID of the first particle entering the sensitive volume"/>
<column name="mtid" num="4" type="int32" info="Track ID of the mother of the first particle entering the sensitive volume"/>
<column name="otid" num="5" type="int32" info="Track ID of the original track that generated the first particle entering the sensitive volume"/>
<column name="trackE" num="6" type="float64" info="Energy of the track"/>
<column name="totEdep" num="7" type="float64" info="Total Energy Deposited"/>
<column name="avgX" num="8" type="float64" info="Average X position in global reference system"/>
<column name="avgY" num="9" type="float64" info="Average Y position in global reference system"/>
<column name="avgZ" num="10" type="float64" info="Average Z position in global reference system"/>
<column name="avgLx" num="11" type="float64" info="Average X position in local reference system"/>
<column name="avgLy" num="12" type="float64" info="Average Y position in local reference system"/>
<column name="avgLz" num="13" type="float64" info="Average Z position in local reference system"/>
<column name="px" num="14" type="float64" info="x component of momentum of the particle entering the sensitive volume"/>
<column name="py" num="15" type="float64" info="y component of momentum of the particle entering the sensitive volume"/>
<column name="pz" num="16" type="float64" info="z component of momentum of the particle entering the sensitive volume"/>
<column name="vx" num="17" type="float64" info="x component of primary vertex of the particle entering the sensitive volume"/>
<column name="vy" num="18" type="float64" info="y component of primary vertex of the particle entering the sensitive volume"/>
<column name="vz" num="19" type="float64" info="z component of primary vertex of the particle entering the sensitive volume"/>
<column name="mvx" num="20" type="float64" info="x component of primary vertex of the mother of the particle entering the sensitive volume"/>
<column name="mvy" num="21" type="float64" info="y component of primary vertex of the mother of the particle entering the sensitive volume"/>
<column name="mvz" num="22" type="float64" info="z component of primary vertex of the mother of the particle entering the sensitive volume"/>
<column name="avgT" num="23" type="float64" info="Average time"/>
<column name="nsteps" num="24" type="int32" info="Number of steps"/>
<column name="procID" num="25" type="int32" info="Process ID"/>
<column name="hitn" num="99" type="int32" info="Hit1 Number"/>
</section>
<section name="dgtz" tag="2602" num="0" info="Digitized information">
<column name="sector" type="int32" num="1" info="Sector (10..63)" />
<column name="layer" type="int32" num="2" info="Layer number (1..2)" />
<column name="component" type="int32" num="3" info="Strip number (1..10000)" />
<column name="ADC" type="int32" num="4" info="adc" />
<column name="time" type="float64" num="5" info="Time of the hit" />
<column name="hitn" type="int32" num="99" info="Hit Number" />
</section>
</bank>
</evio_dictionary>
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