mirror of
https://github.com/gwm17/Mask.git
synced 2024-11-13 05:58:50 -05:00
176 lines
6.6 KiB
C++
176 lines
6.6 KiB
C++
/*
|
|
|
|
Class which represents a single MMM detector in the SABRE array at FSU. Origial code by KGH, re-written by
|
|
GWM.
|
|
|
|
Distances in meters, angles in radians.
|
|
|
|
The channel arrays have four points, one for each corner. The corners are
|
|
as follows, as if looking BACK along beam (i.e. from the target's pov):
|
|
|
|
0---------------------1
|
|
| |
|
|
| | x
|
|
| | <-----
|
|
| | |
|
|
| | |
|
|
3---------------------2 y
|
|
(z is hence positive along beam direction)
|
|
|
|
The channel numbers, also as looking back from target pov, are:
|
|
|
|
>> rings are 0 -- 15 from inner to outer:
|
|
|
|
15 -------------------
|
|
14 -------------------
|
|
13 -------------------
|
|
.
|
|
.
|
|
.
|
|
2 -------------------
|
|
1 -------------------
|
|
0 -------------------
|
|
|
|
>> wedges are 0 -- 7 moving counterclockwise:
|
|
|
|
7 6 ... 1 0
|
|
| | | | | |
|
|
| | | | | |
|
|
| | | | | |
|
|
| | | | | |
|
|
| | | | | |
|
|
| | | | | |
|
|
|
|
|
|
>> Note that the detector starts centered on the x-axis (central phi = 0) untilted, and then is rotated to wherever the frick
|
|
it is supposed to go; phi = 90 is centered on y axis, pointing down towards the bottom of the scattering chamber
|
|
|
|
-- GWM, Dec 2020; based on the og code from kgh
|
|
|
|
*/
|
|
|
|
#ifndef SABREDETECTOR_H
|
|
#define SABREDETECTOR_H
|
|
|
|
#include <vector>
|
|
#include <cmath>
|
|
|
|
#include "Vec3.h"
|
|
#include "Rotation.h"
|
|
|
|
class SabreDetector {
|
|
public:
|
|
|
|
SabreDetector();
|
|
SabreDetector(double Rin, double Rout, double deltaPhi_flat, double phiCentral, double tiltFromVert, double zdist, double xdist=0, double ydist=0);
|
|
~SabreDetector();
|
|
|
|
/*Return coordinates of the corners of each ring/wedge in SABRE*/
|
|
inline Mask::Vec3 GetRingFlatCoords(int ch, int corner) { return CheckRingLocation(ch, corner) ? m_ringCoords_flat[ch][corner] : Mask::Vec3(); };
|
|
inline Mask::Vec3 GetWedgeFlatCoords(int ch, int corner) { return CheckWedgeLocation(ch, corner) ? m_wedgeCoords_flat[ch][corner] : Mask::Vec3(); };
|
|
inline Mask::Vec3 GetRingTiltCoords(int ch, int corner) { return CheckRingLocation(ch, corner) ? m_ringCoords_tilt[ch][corner] : Mask::Vec3(); };
|
|
inline Mask::Vec3 GetWedgeTiltCoords(int ch, int corner) { return CheckWedgeLocation(ch, corner) ? m_wedgeCoords_tilt[ch][corner] : Mask::Vec3(); };
|
|
|
|
Mask::Vec3 GetTrajectoryCoordinates(double theta, double phi);
|
|
std::pair<int, int> GetTrajectoryRingWedge(double theta, double phi);
|
|
Mask::Vec3 GetHitCoordinates(int ringch, int wedgech);
|
|
|
|
/*Basic getters*/
|
|
inline int GetNumberOfWedges() { return m_nWedges; };
|
|
inline int GetNumberOfRings() { return m_nRings; };
|
|
inline double GetInnerRadius() { return m_Rinner; };
|
|
inline double GetOuterRadius() { return m_Router; };
|
|
inline double GetPhiCentral() { return m_phiCentral; };
|
|
inline double GetTiltAngle() { return m_tilt; };
|
|
inline Mask::Vec3 GetTranslation() { return m_translation; };
|
|
inline Mask::Vec3 GetNormTilted() { return TransformToTiltedFrame(m_norm_flat); };
|
|
|
|
|
|
private:
|
|
|
|
/*Class constants*/
|
|
static constexpr int m_nRings = 16;
|
|
static constexpr int m_nWedges = 8;
|
|
static constexpr double deg2rad = M_PI/180.0;
|
|
/*These are implicitly the width of the spacing between detector active strips*/
|
|
static constexpr double POSITION_TOL = 0.0001; //0.1 mm position tolerance
|
|
static constexpr double ANGULAR_TOL = 0.1*M_PI/180.0; // 0.1 degree angular tolerance
|
|
|
|
void CalculateCorners();
|
|
|
|
/*Performs the transformation to the tilted,rotated,translated frame of the SABRE detector*/
|
|
inline Mask::Vec3 TransformToTiltedFrame(Mask::Vec3& vector) { return (m_ZRot*(m_YRot*vector)) + m_translation; };
|
|
|
|
/*Determine if a given channel/corner combo is valid*/
|
|
inline bool CheckRingChannel(int ch) { return (ch<m_nRings && ch>=0) ? true : false; };
|
|
inline bool CheckWedgeChannel(int ch) { return (ch<m_nWedges && ch >=0) ? true : false; };
|
|
inline bool CheckCorner(int corner) { return (corner < 4 && corner >=0) ? true : false; };
|
|
inline bool CheckRingLocation(int ch, int corner) { return CheckRingChannel(ch) && CheckCorner(corner); };
|
|
inline bool CheckWedgeLocation(int ch, int corner) { return CheckWedgeChannel(ch) && CheckCorner(corner); };
|
|
|
|
/*
|
|
For all of the calculations, need a limit precision to determine if values are actually equal or not
|
|
Here the approx. size of the strip spacing is used as the precision.
|
|
*/
|
|
inline bool CheckPositionEqual(double val1,double val2) { return fabs(val1-val2) > POSITION_TOL ? false : true; };
|
|
inline bool CheckAngleEqual(double val1,double val2) { return fabs(val1-val2) > ANGULAR_TOL ? false : true; };
|
|
|
|
/*Determine if a hit is within the bulk detector*/
|
|
inline bool IsInside(double r, double phi) {
|
|
double phi_1 = m_deltaPhi_flat/2.0;
|
|
double phi_2 = M_PI*2.0 - m_deltaPhi_flat/2.0;
|
|
return (((r > m_Rinner && r < m_Router) || CheckPositionEqual(r, m_Rinner) || CheckPositionEqual(r, m_Router)) && (phi > phi_2 || phi < phi_1 || CheckAngleEqual(phi, phi_1) || CheckAngleEqual(phi, phi_2)));
|
|
};
|
|
|
|
/*
|
|
For a given radius/phi are you inside of a given ring/wedge channel,
|
|
or are you on the spacing between these channels
|
|
*/
|
|
inline bool IsRing(double r, int ringch) {
|
|
double ringtop = m_Rinner + m_deltaR_flat_ring*(ringch + 1);
|
|
double ringbottom = m_Rinner + m_deltaR_flat_ring*(ringch);
|
|
return (r>ringbottom && r<ringtop);
|
|
};
|
|
|
|
inline bool IsRingTopEdge(double r, int ringch) {
|
|
double ringtop = m_Rinner + m_deltaR_flat_ring*(ringch + 1);
|
|
return CheckPositionEqual(r, ringtop);
|
|
};
|
|
|
|
inline bool IsRingBottomEdge(double r, int ringch) {
|
|
double ringbottom = m_Rinner + m_deltaR_flat_ring*(ringch);
|
|
return CheckPositionEqual(r, ringbottom);
|
|
};
|
|
|
|
inline bool IsWedge(double phi, int wedgech) {
|
|
double wedgetop = -m_deltaPhi_flat/2.0 + m_deltaPhi_flat_wedge*(wedgech+1);
|
|
double wedgebottom = -m_deltaPhi_flat/2.0 + m_deltaPhi_flat_wedge*(wedgech);
|
|
return ((phi>wedgebottom && phi<wedgetop));
|
|
};
|
|
|
|
inline bool IsWedgeTopEdge(double phi, int wedgech) {
|
|
double wedgetop = -m_deltaPhi_flat/2.0 + m_deltaPhi_flat_wedge*(wedgech+1);
|
|
return CheckAngleEqual(phi, wedgetop);
|
|
}
|
|
|
|
inline bool IsWedgeBottomEdge(double phi, int wedgech) {
|
|
double wedgebottom = -m_deltaPhi_flat/2.0 + m_deltaPhi_flat_wedge*(wedgech);
|
|
return CheckAngleEqual(phi, wedgebottom);
|
|
}
|
|
|
|
/*Class data*/
|
|
double m_Router, m_Rinner, m_deltaPhi_flat, m_phiCentral, m_tilt;
|
|
Mask::Vec3 m_translation;
|
|
Mask::YRotation m_YRot;
|
|
Mask::ZRotation m_ZRot;
|
|
double m_deltaR_flat, m_deltaR_flat_ring, m_deltaPhi_flat_wedge;
|
|
Mask::Vec3 m_norm_flat;
|
|
|
|
std::vector<std::vector<Mask::Vec3>> m_ringCoords_flat, m_wedgeCoords_flat;
|
|
std::vector<std::vector<Mask::Vec3>> m_ringCoords_tilt, m_wedgeCoords_tilt;
|
|
|
|
};
|
|
|
|
|
|
#endif
|