#include <HeedParticle_BGM.h>

Inheritance diagram for Heed::HeedParticle_BGM:

Public Member Functions
	HeedParticle_BGM ()
	Default constructor.

	HeedParticle_BGM (manip_absvol primvol, const point &pt, const vec &vel, vfloat time, particle_def fpardef, HeedFieldMap *fieldmap, bool fs_loss_only=false, bool fs_print_listing=false)

virtual	~HeedParticle_BGM ()
	Destructor.

void	print (std::ostream &file, int l) const override
	Print-out.

HeedParticle_BGM *	copy () const override
	Clone the particle.

Public Member Functions inherited from Heed::eparticle
	eparticle ()=default
	Default constructor.

	eparticle (manip_absvol primvol, const point &pt, const vec &vel, vfloat time, particle_def fpardef, HeedFieldMap *fieldmap)
	Constructor using velocity vector.

virtual	~eparticle ()
	Destructor.

Public Member Functions inherited from Heed::mparticle
	mparticle ()=default
	Default constructor.

	mparticle (manip_absvol *primvol, const point &pt, const vec &vel, vfloat ftime, double fmass)
	Constructor, $\gamma - 1$ calculated from the from velocity vector.

virtual	~mparticle ()
	Destructor.

double	kinetic_energy () const
	Get the current kinetic energy.

void	print (std::ostream &file, int l) const override
	Print-out.

mparticle *	copy () const override
	Clone the particle.

Public Member Functions inherited from Heed::gparticle
	gparticle ()=default
	Default constructor.

	gparticle (manip_absvol *primvol, const point &pt, const vec &vel, vfloat time)
	Constructor.

virtual	~gparticle ()
	Destructor.

virtual void	fly (std::vector< gparticle * > &secondaries)
	Transport the particle.

virtual void	fly (std::vector< gparticle * > &secondaries, const bool one_step)

void	set_step_limits (const vfloat fmax_range, const vfloat frad_for_straight, const vfloat fmax_straight_arange, const vfloat fmax_circ_arange)
	Set limits/parameters for trajectory steps.

const vec &	position () const
	Get the current position of the particle.

vfloat	time () const
	Get the current time of the particle.

const vec &	direction () const
	Get the current direction of the particle.

bool	alive () const
	Alive?

Protected Member Functions
void	physics (std::vector< gparticle * > &secondaries) override
	Apply any other processes (turn the trajectory, kill the particle, ...).

Protected Member Functions inherited from Heed::eparticle
int	force (const point &pt, vec &f, vec &f_perp, vfloat &mrange) override
	Calculate force components.

Protected Member Functions inherited from Heed::mparticle
void	step (std::vector< gparticle * > &secondaries) override

void	curvature (bool &curved, vec &frelcen, vfloat &fmrange, vfloat prec) override

Protected Member Functions inherited from Heed::gparticle
virtual void	change_vol ()
	Move from one volume to another.

virtual void	physics_after_new_speed (std::vector< gparticle * > &)
	Apply any other processes (turn the trajectory, kill the particle, ...).

virtual void	physics_mrange (double &fmrange)

virtual stvpoint	calc_step_to_bord ()
	Determine next position.

void	turn (const double ctheta, const double stheta)
	Change the direction of the particle.

stvpoint	switch_new_vol ()
	Generate next position in new volume.

Additional Inherited Members
Static Public Member Functions inherited from Heed::gparticle
static void	reset_counter ()
	Reset the counter.

Protected Attributes inherited from Heed::eparticle
particle_def *	m_pardef = nullptr

HeedFieldMap *	m_fieldMap = nullptr
	Pointer to field map.

Protected Attributes inherited from Heed::mparticle
double	m_mass = 0.
	Mass (not mass * speed_of_light^2)

double	m_curr_ekin = 0.
	Current kinetic energy.

double	m_orig_ekin = 0.
	Original kinetic energy.

double	m_prev_ekin = 0.
	Previous kinetic energy.

double	m_curr_gamma_1 = 0.
	Current $\gamma - 1$ .

double	m_orig_gamma_1 = 0.
	Original $\gamma - 1$ .

double	m_prev_gamma_1 = 0.
	Previous $\gamma - 1$ .

Protected Attributes inherited from Heed::gparticle
bool	m_alive = false
	Status flag whether the particle is active.

long	m_nstep = 0
	Step number.

long	m_nzero_step = 0
	Number of previous steps with zero range (including this step).

stvpoint	m_origin
	Original point.

double	m_total_range_from_origin = 0.
	Range from origin to current position.

stvpoint	m_prevpos
	Previous point.

stvpoint	m_currpos
	Current point.

stvpoint	m_nextpos
	Next point.

Static Protected Attributes inherited from Heed::gparticle
static std::atomic< long >	s_counter {0L}
	Instance counter.

static constexpr long	m_max_qzero_step = 100
	Max. number of zero-steps allowed.

Detailed Description

Definition of the particle which can be traced through the geometry. 2003, I. Smirnov

Definition at line 13 of file HeedParticle_BGM.h.

Constructor & Destructor Documentation

◆ HeedParticle_BGM() [1/2]

Heed::HeedParticle_BGM::HeedParticle_BGM ( )

inline

Default constructor.

Definition at line 16 of file HeedParticle_BGM.h.

16: eparticle() {}

Heed::eparticle::eparticle

eparticle()=default

Default constructor.

Referenced by copy().

◆ HeedParticle_BGM() [2/2]

Heed::HeedParticle_BGM::HeedParticle_BGM	(	manip_absvol *	primvol,
		const point &	pt,
		const vec &	vel,
		vfloat	time,
		particle_def *	fpardef,
		HeedFieldMap *	fieldmap,
		bool	fs_loss_only = false,
		bool	fs_print_listing = false )

Constructor. if fs_loss_only == true - only transfer energy and no other physics: no deposition of clusters, no generation of virtual photons. Thus it is just a PAI without even clusters

Definition at line 23 of file HeedParticle_BGM.cpp.

    : eparticle(primvol, pt, vel, ftime, fpardef, fieldmap),
      m_print_listing(fprint_listing),
      m_loss_only(floss_only),
      m_particle_number(s_counter++) {}

◆ ~HeedParticle_BGM()

virtual Heed::HeedParticle_BGM::~HeedParticle_BGM ( )

inlinevirtual

Destructor.

Definition at line 26 of file HeedParticle_BGM.h.

26{}

Member Function Documentation

◆ copy()

HeedParticle_BGM * Heed::HeedParticle_BGM::copy ( ) const

inlineoverridevirtual

Clone the particle.

Reimplemented from Heed::eparticle.

Definition at line 29 of file HeedParticle_BGM.h.

                                          { 
    return new HeedParticle_BGM(*this); 
  }

◆ physics()

void Heed::HeedParticle_BGM::physics ( std::vector< gparticle * > & )

overrideprotectedvirtual

Apply any other processes (turn the trajectory, kill the particle, ...).

Reimplemented from Heed::gparticle.

Definition at line 34 of file HeedParticle_BGM.cpp.

                                                                 {
  mfunname("void HeedParticle_BGM::physics()");
  if (m_print_listing) {
    mcout << "HeedParticle_BGM::physics is started\n";
    Iprintn(mcout, m_currpos.prange);
  }
  // Get the step.
  if (m_currpos.prange <= 0.0) return;
  const double stp = m_currpos.prange / cm;
  const vec dir = unit_vec(m_currpos.pt - m_prevpos.pt);
  // This approximation ignores curvature
  const double range = (m_currpos.pt - m_prevpos.pt).length();
  if (m_print_listing) Iprint3n(mcout, m_prevpos.pt, dir, range);
  // Get local volume.
  const absvol* av = m_currpos.volume();
  auto etcs = dynamic_cast<const EnTransfCS_BGM*>(av);
  if (!etcs) return;
  HeedMatterDef* hmd = etcs->hmd;
  MatterDef* matter = hmd->matter;
  EnergyMesh* emesh = hmd->energy_mesh;
  const double* aetemp = hmd->energy_mesh->get_ae();
  PointCoorMesh<double, const double*> pcm_e(emesh->get_q() + 1, &(aetemp));
  // Particle mass, energy and momentum.
  const double mp = m_mass * c_squared;
  const double ep = mp + m_curr_ekin;
  const double bg = sqrt(m_curr_gamma_1 * (m_curr_gamma_1 + 2.0));
  // Electron mass.
  const double mt = electron_mass_c2;
  // Particle velocity.
  const double invSpeed = 1. / m_prevpos.speed;
  PointCoorMesh<double, std::vector<double> > pcm(etcs->mesh->q,
                                                  &(etcs->mesh->x));
  long n1, n2;
  double b1, b2;
  int s_ret = pcm.get_interval(bg, n1, b1, n2, b2);
  if (s_ret != 1) {
    mcerr << "ERROR in void HeedParticle_BGM::physics()\n";
    mcerr << "beta*gamma is outside range of cross-section table\n";
    std::streamsize old_prec = mcerr.precision(15);
    Iprint2n(mcerr, m_curr_gamma_1, bg);
    mcerr.precision(old_prec);
    Iprint2n(mcerr, n1, n2);
    Iprint2n(mcerr, b1, b2);
    Iprintn(mcerr, etcs->mesh);
    mcerr << "This particle is:\n";
    print(mcerr, 2);
    mcerr << "This volume is:\n";
    av->print(mcerr, 2);
    spexit(mcerr);
    return;
  }
 
  const double f2 = (bg - b1) * (b2 - b1);
  const double f1 = 1. - f2;
  const long qa = matter->qatom();
  if (m_print_listing) Iprintn(mcout, qa);
  basis tempbas(m_currpos.dir, "tempbas");
  // Shorthand.
  const auto sampleTransfer = t_hisran_step_ar<double, std::vector<double>,
                                               PointCoorMesh<double, const double*> >;
  for (long na = 0; na < qa; ++na) {
    if (m_print_listing) Iprintn(mcout, na);
    long qs = hmd->apacs[na]->get_qshell();
    for (long ns = 0; ns < qs; ++ns) {
      if (m_print_listing) Iprintn(mcout, ns);
      const double y1 = etcs->etcs_bgm[n1].quan[na][ns];
      const double y2 = etcs->etcs_bgm[n2].quan[na][ns];
      const double mean_pois = f1 * y1 + f2 * y2;
      if (mean_pois <= 0.) continue;
      const long qt = pois(mean_pois * stp);
      if (m_print_listing) Iprintn(mcout, qt);
      if (qt <= 0) continue;
      for (long nt = 0; nt < qt; nt++) {
        // Sample the energy transfer in this collision.
        const double rn = SRANLUX();
        const double r1 = sampleTransfer(pcm_e, etcs->etcs_bgm[n1].fadda[na][ns], rn);
        const double r2 = sampleTransfer(pcm_e, etcs->etcs_bgm[n2].fadda[na][ns], rn);
        const double r = f1 * r1 + f2 * r2;
        if (m_print_listing) {
          Iprintn(mcout, rn);
          Iprint3n(mcout, r1, r2, r);
        }
        // Convert to internal units.
        const double et = r * MeV;
        m_edep += et;
        if (m_print_listing) Iprint2n(mcout, nt, et);
        // Sample the position of the collision.
        const double arange = SRANLUX() * range;
        point pt = m_prevpos.pt + dir * arange;
        if (m_loss_only) continue;
        if (m_print_listing) mcout << "generating new cluster\n";
        m_clusterBank.push_back(HeedCluster(et, pt, na, ns));
        // Generate a virtual photon.
        double theta_p, theta_t;
        theta_two_part(ep, ep - et, mp, mt, theta_p, theta_t);
        vec vel;
        vel.random_conic_vec(fabs(theta_t));
        vel.down(&tempbas);  // direction is OK
        vel *= c_light;
        const double t = m_prevpos.time + arange * invSpeed;
        if (m_print_listing) mcout << "generating new virtual photon\n";
        HeedPhoton* hp = new HeedPhoton(m_currpos.tid.eid[0], pt, vel, t,
                                        m_particle_number, et, m_fieldMap);
        if (!hp->alive()) {
          delete hp;
          continue;
        }
        hp->m_photon_absorbed = true;
        hp->m_delta_generated = false;
        hp->m_na_absorbing = na;
        hp->m_ns_absorbing = ns;
        secondaries.push_back(hp);
      }
    }
  }
  if (m_edep >= m_curr_ekin) {
    // Accumulated energy loss exceeds the particle's kinetic energy.
    m_alive = false;
  }
 
  if (m_print_listing) {
    Iprintn(mcout, m_edep);
    mcout << "Exiting HeedParticle_BGM::physics\n";
  }
}

◆ print()

void Heed::HeedParticle_BGM::print	(	std::ostream &	file,
		int	l ) const

overridevirtual

Print-out.

Reimplemented from Heed::eparticle.

Definition at line 160 of file HeedParticle_BGM.cpp.

                                                          {
  if (l < 0) return;
  Ifile << "HeedParticle_BGM (l=" << l
        << "): particle_number=" << m_particle_number << " type=";
  if (!m_pardef) {
    file << "none";
  } else {
    file << m_pardef->notation;
  }
  file << std::endl;
  if (l == 1) return;
  mparticle::print(file, l - 1);
  Iprintn(mcout, m_edep);
}

Referenced by physics().

The documentation for this class was generated from the following files:

Public Member Functions

Protected Member Functions

Additional Inherited Members