LinearCompton.cpp File Reference

#include "Physics/LinearCompton.h"
#include "Physics/Physics.h"
#include "Utilities/OpalException.h"
#include "Utilities/Options.h"
#include <algorithm>
#include <cmath>
#include <cstdint>
#include <limits>
#include <random>
#include <string>

Include dependency graph for LinearCompton.cpp:

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Namespaces
namespace	Physics
namespace	Physics::LinearCompton

Functions
double	Physics::LinearCompton::photonEnergyFromWavelengthGeV (double wavelength_m)
	Convert a laser wavelength to a single-photon energy.
double	Physics::LinearCompton::electronGamma (double electronTotalEnergyGeV)
	Compute the electron Lorentz factor from total energy.
double	Physics::LinearCompton::electronBeta (double electronTotalEnergyGeV)
	Compute the electron speed in units of c from total energy.
double	Physics::LinearCompton::restFrameIncomingPhotonEnergyGeV (double electronTotalEnergyGeV, double laserPhotonEnergyGeV, const Vector_t< double, 3 > &beamDirection, const Vector_t< double, 3 > &laserDirection)
	Compute the incoming photon energy in the electron rest frame.
Vector_t< double, 3 >	Physics::LinearCompton::restFrameIncomingPhotonDirection (double electronTotalEnergyGeV, const Vector_t< double, 3 > &beamDirection, const Vector_t< double, 3 > &laserDirection)
	Incoming laser-photon direction in the electron rest frame.
Vector_t< double, 3 >	Physics::LinearCompton::labPhotonDirection (double electronTotalEnergyGeV, const Vector_t< double, 3 > &beamDirection, const Vector_t< double, 3 > &laserDirection, double scatteringCosineERF, double azimuthERF)
	Laboratory-frame photon direction from electron-rest-frame scattering angles.
std::mt19937_64	Physics::LinearCompton::makeHostRandomEngine (std::uint64_t streamIndex=0)
	Create a deterministic host-side random engine for Monte Carlo validation.
SamplingKernel	Physics::LinearCompton::makeSamplingKernel (double electronTotalEnergyGeV, double laserPhotonEnergyGeV, const Vector_t< double, 3 > &beamDirection, const Vector_t< double, 3 > &laserDirection)
	Build a cached sampling kernel for repeated event generation.
SampledEvent	Physics::LinearCompton::sampleEvent (const SamplingKernel &kernel, std::mt19937_64 &engine)
	Sample one unpolarized linear-Compton event on the host.
double	Physics::LinearCompton::invariantKappa (double incomingPhotonEnergyERFGeV)
	Compute the dimensionless Klein-Nishina parameter \(\\kappa = \\omega_1/m_e\).
double	Physics::LinearCompton::invariantX (double incomingPhotonEnergyERFGeV)
	Compute CAIN's linear-Compton invariant \(x = 2 \\omega_1 / m_e\).
double	Physics::LinearCompton::invariantX (double electronTotalEnergyGeV, double laserPhotonEnergyGeV, const Vector_t< double, 3 > &beamDirection, const Vector_t< double, 3 > &laserDirection)
	Compute CAIN's linear-Compton invariant directly from laboratory quantities.
double	Physics::LinearCompton::scatteredPhotonEnergyMinERFGeV (double incomingPhotonEnergyERFGeV)
	Minimum scattered photon energy in the electron rest frame.
double	Physics::LinearCompton::scatteredPhotonEnergyMaxERFGeV (double incomingPhotonEnergyERFGeV)
	Maximum scattered photon energy in the electron rest frame.
double	Physics::LinearCompton::scatteredPhotonEnergyERFGeV (double incomingPhotonEnergyERFGeV, double scatteringCosineERF)
	Compute the scattered photon energy in the electron rest frame.
double	Physics::LinearCompton::differentialCrossSectionSolidAngleERF (double incomingPhotonEnergyERFGeV, double scatteringCosineERF)
	Unpolarized Klein-Nishina differential cross section in solid angle.
double	Physics::LinearCompton::differentialCrossSectionOmegaERF (double incomingPhotonEnergyERFGeV, double scatteredPhotonEnergyERFGeV)
	Unpolarized Klein-Nishina differential cross section in the scattered-photon energy.
double	Physics::LinearCompton::totalCrossSection (double incomingPhotonEnergyERFGeV)
	Total unpolarized Klein-Nishina cross section.
double	Physics::LinearCompton::thomsonCrossSection ()
	Thomson limit cross section.
double	Physics::LinearCompton::restFrameScatteringCosineForLabForwardPhoton (double electronTotalEnergyGeV, const Vector_t< double, 3 > &beamDirection, const Vector_t< double, 3 > &laserDirection)
	Rest-frame scattering cosine corresponding to a lab-forward photon.
double	Physics::LinearCompton::labPhotonEnergyGeV (double electronTotalEnergyGeV, double laserPhotonEnergyGeV, const Vector_t< double, 3 > &beamDirection, const Vector_t< double, 3 > &laserDirection, double scatteringCosineERF, double azimuthERF)
	Laboratory-frame photon energy from electron-rest-frame scattering angles.
double	Physics::LinearCompton::labForwardPhotonEnergyGeV (double electronTotalEnergyGeV, double laserPhotonEnergyGeV, const Vector_t< double, 3 > &beamDirection, const Vector_t< double, 3 > &laserDirection)
	Forward scattered photon energy in the laboratory frame.