#include <DCH_info.h>

Classes
struct	DCH_info_layer
	Internal helper struct for defining the layer layout. More...

Public Types
using	DCH_layer = int
	type for layer number More...

using	DCH_length_t = double
	tpye for lengths More...

using	DCH_angle_t = double
	tpye for angles More...

Public Member Functions
void	Set_lhalf (DCH_length_t _dch_Lhalf)

void	Set_rin (DCH_length_t _dch_rin)

void	Set_rout (DCH_length_t _dch_rout)

void	Set_guard_rin_at_z0 (DCH_length_t _dch_rin_z0_guard)

void	Set_guard_rout_at_zL2 (DCH_length_t _dch_rout_zL2_guard)

void	Set_ncell0 (int _ncell0)

void	Set_ncell_increment (int _ncell_increment)

void	Set_nlayersPerSuperlayer (int _nlayersPerSuperlayer)

void	Set_nsuperlayers (int _nsuperlayers)

void	Set_ncell_per_sector (int _ncell_per_sector)

void	Set_twist_angle (DCH_length_t _dch_twist_angle)

void	Set_first_width (double _first_width)

void	Set_first_sense_r (double _first_sense_r)

int	Get_ncells (int ilayer)

DCH_angle_t	Get_phi_width (int ilayer)
	Get phi width for the twisted tube and the step (phi distance between cells) More...

DCH_angle_t	Get_cell_phi_angle (int ilayer, int nphi)

int	Get_nsuperlayer_minus_1 (int ilayer)

DCH_length_t	Radius_zLhalf (DCH_length_t r_z0) const
	Calculate radius at z=L/2 given at z=0. More...

DCH_angle_t	stereoangle_z0 (DCH_length_t r_z0) const
	tan(stereoangle) = R(z=0) / (L/2) * tan( twist_angle/2) More...

DCH_angle_t	stereoangle_zLhalf (DCH_length_t r_zLhalf) const
	tan(stereoangle) = R(z=L/2) / (L/2) * sin( twist_angle/2) More...

DCH_length_t	WireLength (int nlayer, DCH_length_t r_z0) const
	WireLength = 2dch_Lhalf/cos(atan(Pitch_z0(r_z0)/(2dch_Lhalf)))/cos(stereoangle_z0(r_z0)) More...

bool	IsDatabaseEmpty () const

void	BuildLayerDatabase ()

void	Show_DCH_info_database (std::ostream &io) const

Public Attributes
DCH_length_t	Lhalf = {0}
	Half length of the active volume. More...

DCH_length_t	rin = {0}
	Inner radius of the active volume. More...

DCH_length_t	rout = {0}
	Outer radius of the active volume. More...

DCH_length_t	guard_inner_r_at_z0 = {0}
	Inner guard wires radius. More...

DCH_length_t	guard_outer_r_at_zL2 = {0}
	Outer guard wires radius. More...

int	ncell0 = {0}
	number of cells of first layer More...

int	ncell_increment = {0}

int	ncell_per_sector = {0}
	cells within the same layer may be grouped into sectors, not in use atm More...

DCH_layer	nlayersPerSuperlayer = {0}
	input number of layers in each superlayer More...

DCH_layer	nsuperlayers = {0}

DCH_layer	nlayers = {0}
	Calculated as dch_nlayersPerSuperlayer * dch_nsuperlayers. More...

DCH_angle_t	twist_angle = {0}

double	first_width = {0}
	Cell width for the first layer. More...

DCH_length_t	first_sense_r = {0}
	Cell radius for the first layer. More...

std::map< DCH_layer, DCH_info_layer >	database
	map to store parameters for each layer More...

Detailed Description

Definition at line 31 of file DCH_info.h.

Member Typedef Documentation

◆ DCH_angle_t

using dd4hep::rec::DCH_info_struct::DCH_angle_t = double

tpye for angles

Definition at line 41 of file DCH_info.h.

◆ DCH_layer

using dd4hep::rec::DCH_info_struct::DCH_layer = int

type for layer number

Definition at line 37 of file DCH_info.h.

◆ DCH_length_t

using dd4hep::rec::DCH_info_struct::DCH_length_t = double

tpye for lengths

Definition at line 39 of file DCH_info.h.

Member Function Documentation

◆ BuildLayerDatabase()

void dd4hep::rec::DCH_info_struct::BuildLayerDatabase ( )

inline

nlayers = nsuperlayers * nlayersPerSuperlayer default: 112 = 14 * 8

Definition at line 188 of file DCH_info.h.

◆ Get_cell_phi_angle()

DCH_angle_t dd4hep::rec::DCH_info_struct::Get_cell_phi_angle	(	int	ilayer,
		int	nphi
	)

inline

phi positioning, adding offset for odd ilayers there is a staggering in phi for alternating layers, 0.25*cell_phi_width*(ilayer%2);

Definition at line 112 of file DCH_info.h.

◆ Get_ncells()

int dd4hep::rec::DCH_info_struct::Get_ncells ( int ilayer )

inline

Get number of cells in a given layer ncells = number of wires/2

Definition at line 105 of file DCH_info.h.

◆ Get_nsuperlayer_minus_1()

int dd4hep::rec::DCH_info_struct::Get_nsuperlayer_minus_1 ( int ilayer )

inline

calculate superlayer for a given ilayer. WARNING: division of integers on purpose!

Definition at line 116 of file DCH_info.h.

◆ Get_phi_width()

DCH_angle_t dd4hep::rec::DCH_info_struct::Get_phi_width ( int ilayer )

inline

Get phi width for the twisted tube and the step (phi distance between cells)

Definition at line 108 of file DCH_info.h.

◆ IsDatabaseEmpty()

bool dd4hep::rec::DCH_info_struct::IsDatabaseEmpty ( ) const

inline

Definition at line 178 of file DCH_info.h.

◆ Radius_zLhalf()

DCH_length_t dd4hep::rec::DCH_info_struct::Radius_zLhalf ( DCH_length_t r_z0 ) const

inline

Calculate radius at z=L/2 given at z=0.

Definition at line 119 of file DCH_info.h.

◆ Set_first_sense_r()

void dd4hep::rec::DCH_info_struct::Set_first_sense_r ( double _first_sense_r )

inline

Definition at line 100 of file DCH_info.h.

◆ Set_first_width()

void dd4hep::rec::DCH_info_struct::Set_first_width ( double _first_width )

inline

Definition at line 99 of file DCH_info.h.

◆ Set_guard_rin_at_z0()

void dd4hep::rec::DCH_info_struct::Set_guard_rin_at_z0 ( DCH_length_t _dch_rin_z0_guard )

inline

Definition at line 86 of file DCH_info.h.

◆ Set_guard_rout_at_zL2()

void dd4hep::rec::DCH_info_struct::Set_guard_rout_at_zL2 ( DCH_length_t _dch_rout_zL2_guard )

inline

Definition at line 87 of file DCH_info.h.

◆ Set_lhalf()

void dd4hep::rec::DCH_info_struct::Set_lhalf ( DCH_length_t _dch_Lhalf )

inline

Definition at line 82 of file DCH_info.h.

◆ Set_ncell0()

void dd4hep::rec::DCH_info_struct::Set_ncell0 ( int _ncell0 )

inline

Definition at line 89 of file DCH_info.h.

◆ Set_ncell_increment()

void dd4hep::rec::DCH_info_struct::Set_ncell_increment ( int _ncell_increment )

inline

Definition at line 90 of file DCH_info.h.

◆ Set_ncell_per_sector()

void dd4hep::rec::DCH_info_struct::Set_ncell_per_sector ( int _ncell_per_sector )

inline

Definition at line 95 of file DCH_info.h.

◆ Set_nlayersPerSuperlayer()

void dd4hep::rec::DCH_info_struct::Set_nlayersPerSuperlayer ( int _nlayersPerSuperlayer )

inline

Definition at line 92 of file DCH_info.h.

◆ Set_nsuperlayers()

void dd4hep::rec::DCH_info_struct::Set_nsuperlayers ( int _nsuperlayers )

inline

Definition at line 93 of file DCH_info.h.

◆ Set_rin()

void dd4hep::rec::DCH_info_struct::Set_rin ( DCH_length_t _dch_rin )

inline

Definition at line 83 of file DCH_info.h.

◆ Set_rout()

void dd4hep::rec::DCH_info_struct::Set_rout ( DCH_length_t _dch_rout )

inline

Definition at line 84 of file DCH_info.h.

◆ Set_twist_angle()

void dd4hep::rec::DCH_info_struct::Set_twist_angle ( DCH_length_t _dch_twist_angle )

inline

Definition at line 97 of file DCH_info.h.

◆ Show_DCH_info_database()

void dd4hep::rec::DCH_info_struct::Show_DCH_info_database ( std::ostream & io ) const

inline

Definition at line 287 of file DCH_info.h.

◆ stereoangle_z0()

DCH_angle_t dd4hep::rec::DCH_info_struct::stereoangle_z0 ( DCH_length_t r_z0 ) const

inline

tan(stereoangle) = R(z=0) / (L/2) * tan( twist_angle/2)

Definition at line 124 of file DCH_info.h.

◆ stereoangle_zLhalf()

DCH_angle_t dd4hep::rec::DCH_info_struct::stereoangle_zLhalf ( DCH_length_t r_zLhalf ) const

inline

tan(stereoangle) = R(z=L/2) / (L/2) * sin( twist_angle/2)

Definition at line 129 of file DCH_info.h.

◆ WireLength()

DCH_length_t dd4hep::rec::DCH_info_struct::WireLength	(	int	nlayer,
		DCH_length_t	r_z0
	)		const

inline

WireLength = 2*dch_Lhalf/cos(atan(Pitch_z0(r_z0)/(2*dch_Lhalf)))/cos(stereoangle_z0(r_z0))

Definition at line 134 of file DCH_info.h.

Member Data Documentation

◆ database

std::map<DCH_layer, DCH_info_layer> dd4hep::rec::DCH_info_struct::database

map to store parameters for each layer

Definition at line 177 of file DCH_info.h.

◆ first_sense_r

DCH_length_t dd4hep::rec::DCH_info_struct::first_sense_r = {0}

Cell radius for the first layer.

Definition at line 80 of file DCH_info.h.

◆ first_width

double dd4hep::rec::DCH_info_struct::first_width = {0}

Cell width for the first layer.

Definition at line 78 of file DCH_info.h.

◆ guard_inner_r_at_z0

DCH_length_t dd4hep::rec::DCH_info_struct::guard_inner_r_at_z0 = {0}

Inner guard wires radius.

Definition at line 50 of file DCH_info.h.

◆ guard_outer_r_at_zL2

DCH_length_t dd4hep::rec::DCH_info_struct::guard_outer_r_at_zL2 = {0}

Outer guard wires radius.

Definition at line 52 of file DCH_info.h.

◆ Lhalf

DCH_length_t dd4hep::rec::DCH_info_struct::Lhalf = {0}

Half length of the active volume.

Definition at line 43 of file DCH_info.h.

◆ ncell0

int dd4hep::rec::DCH_info_struct::ncell0 = {0}

number of cells of first layer

Definition at line 55 of file DCH_info.h.

◆ ncell_increment

int dd4hep::rec::DCH_info_struct::ncell_increment = {0}

increment the number of cells for each superlayer as: ncells(ilayer) = dch_ncell0 + increment*superlayer(ilayer) See DCH_info::Get_nsuperlayer_minus_1(ilayer)

Definition at line 59 of file DCH_info.h.

◆ ncell_per_sector

int dd4hep::rec::DCH_info_struct::ncell_per_sector = {0}

cells within the same layer may be grouped into sectors, not in use atm

Definition at line 62 of file DCH_info.h.

◆ nlayers

DCH_layer dd4hep::rec::DCH_info_struct::nlayers = {0}

Calculated as dch_nlayersPerSuperlayer * dch_nsuperlayers.

Definition at line 71 of file DCH_info.h.

◆ nlayersPerSuperlayer

DCH_layer dd4hep::rec::DCH_info_struct::nlayersPerSuperlayer = {0}

input number of layers in each superlayer

Definition at line 65 of file DCH_info.h.

◆ nsuperlayers

DCH_layer dd4hep::rec::DCH_info_struct::nsuperlayers = {0}

input number of superlayers superlayer is an abstract level of grouping layers used to parametrize the increment of cells in each layer

Definition at line 69 of file DCH_info.h.

◆ rin

DCH_length_t dd4hep::rec::DCH_info_struct::rin = {0}

Inner radius of the active volume.

Definition at line 45 of file DCH_info.h.

◆ rout

DCH_length_t dd4hep::rec::DCH_info_struct::rout = {0}

Outer radius of the active volume.

Definition at line 47 of file DCH_info.h.

◆ twist_angle

DCH_angle_t dd4hep::rec::DCH_info_struct::twist_angle = {0}

global twist angle alternating layers will change its sign

Definition at line 75 of file DCH_info.h.

The documentation for this struct was generated from the following file:

DDRec/include/DDRec/DCH_info.h

Classes

Public Types

Public Member Functions

Public Attributes

Detailed Description

Member Typedef Documentation

◆ DCH_angle_t

◆ DCH_layer

◆ DCH_length_t

Member Function Documentation

◆ BuildLayerDatabase()

◆ Get_cell_phi_angle()

◆ Get_ncells()

◆ Get_nsuperlayer_minus_1()

◆ Get_phi_width()

◆ IsDatabaseEmpty()

◆ Radius_zLhalf()

◆ Set_first_sense_r()

◆ Set_first_width()

◆ Set_guard_rin_at_z0()

◆ Set_guard_rout_at_zL2()

◆ Set_lhalf()

◆ Set_ncell0()

◆ Set_ncell_increment()

◆ Set_ncell_per_sector()

◆ Set_nlayersPerSuperlayer()

◆ Set_nsuperlayers()

◆ Set_rin()

◆ Set_rout()

◆ Set_twist_angle()

◆ Show_DCH_info_database()

◆ stereoangle_z0()

◆ stereoangle_zLhalf()

◆ WireLength()

Member Data Documentation

◆ database

◆ first_sense_r

◆ first_width

◆ guard_inner_r_at_z0

◆ guard_outer_r_at_zL2

◆ Lhalf

◆ ncell0

◆ ncell_increment

◆ ncell_per_sector

◆ nlayers

◆ nlayersPerSuperlayer

◆ nsuperlayers

◆ rin

◆ rout

◆ twist_angle