Class SVTConstants

java.lang.Object

org.jlab.detector.geant4.v2.SVT.SVTConstants

public class SVTConstants
extends Object

Geometry for the SVT

length unit: mm (3D Primitives), cm (Geant4Basic volume positions)
angle unit: deg
Conventions:

• svt = four concentric regions / superlayers
• region / superlayer = ring of a variable number of sectors
• sector = pair of sensor modules and backing structure, connected and stabilised by copper and peek supports
• module = triplet of sensors
• sensor = silicon with etched strips in active region
• layer = plane of sensitive strips, spanning active regions of module
• strip = sensitive line

Version:

1.1.1

Author:

pdavies

Field Summary

Fields

Modifier and Type	Field	Description
static double	ACTIVESENLEN
static double	ACTIVESENWID
static double	DEADZNLEN
static double	DEADZNWID
static double[]	FARADAYCAGEI
static double[]	FARADAYCAGELENGTH
static String[]	FARADAYCAGENAME
static double[]	FARADAYCAGERADLEN
static double[]	FARADAYCAGERHO
static double[]	FARADAYCAGERMAX
static double[]	FARADAYCAGERMIN
static double[]	FARADAYCAGEZOVERA
static double[]	FARADAYCAGEZPOS
static double	FIDCUX
static double	FIDCUZ
static double	FIDORIGINZ
static double	FIDPKX
static double	FIDPKZ0
static double	FIDPKZ1
static double	LAYERGAPTHK
static double	LAYERPOSFAC
static double[][]	LAYERRADIUS
static final double	LENGTHTOL
static Logger	LOGGER
static HashMap<String,double[]>	MATERIALDIMENSIONS
static final Map<String,double[]>	MATERIALPROPERTIES
static HashMap<String,String>	MATERIALTYPES
static double	MICROGAPLEN
static double	MODULELEN
static double	MODULEWID
static int	NFIDUCIALS
static int	NLAYERS
static int	NMATERIALS
static int	NMODULES
static int	NPADS
static int	NREGIONS
static int[]	NSECTORS
static int	NSENSORS
static int	NSTRIPS
static int	NTOTALFIDUCIALS
static int	NTOTALSECTORS
static double	PASSIVETHK
static double	PHI0
static double	PHYSSENLEN
static double	PHYSSENWID
static double	READOUTPITCH
static double[]	REFRADIUS
static double[]	REGIONPEEKLENGTH
static double[]	REGIONPEEKRMAX
static double[]	REGIONPEEKRMIN
static int[][]	RSI
static double	SECTOR0
static double	SECTORLEN
static final double	SIDETOL
static double	SILICONTHK
static int[]	STATUS
static double	STEREOANGLE
static double	STRIPLENMAX
static double	STRIPOFFSETWID
static double[]	SUPPORTRADIUS
static boolean	VERBOSE
static double[]	Z0ACTIVE

Constructor Summary

Constructors

Constructor	Description
SVTConstants()

Method Summary

Modifier and Type	Method	Description
static org.jlab.detector.calib.utils.DatabaseConstantProvider	connect(org.jlab.detector.calib.utils.DatabaseConstantProvider cp)	Loads the the necessary tables for the SVT geometry for a given DatabaseConstantProvider.
static int[]	convertIndex2RegionSector(int aSvtIndex)	Converts linear index to Region and Sector indices.
static int[]	convertIndex2RegionSectorFiducial(int aSurveyIndex)	Converts linear index to Region, Sector, and Fiducial indices.
static int[]	convertLayer2RegionModule(int aLayer)	Converts Layer index to Region, Module indices.
static int	convertRegionModule2Layer(int aRegion, int aModule)	Converts Region, Module indices to Layer index.
static int	convertRegionSector2Index(int aRegion, int aSector)	Converts RS indices to linear index.
static int	convertRegionSectorFiducial2Index(int aRegion, int aSector, int aFiducial)	Converts RSF indices to linear index.Useful for writing data files.
static String	getCcdbPath()	Returns the path to the database directory that contains the core parameters and constants for the SVT. To use with DatabaseConstantProvider: Access tables with getCcdbPath() +"table". Access constants with getCcdbPath() +"table/constant".
static Transform	getDetectorFrame(int aRegion, int aSector, double aRadius, double aZ)	Returns a transformation from the local frame to the ideal lab frame (not accounting for shifts and rotations), for a given sector module.
static double[]	getGlobalAlignmentData()	Returns the layer/sector alignment data
static double[][][]	getLayerSectorAlignmentData()	Returns the layer/sector alignment data
static double	getPhi(int aRegion, int aSector)	Returns the azimuth angle from the x-axis for a given sector module.
static Transform	getStripFrame(boolean aFlip)	Returns a transformation for the strip frame to the local frame.
static void	load(org.jlab.detector.calib.utils.DatabaseConstantProvider cp)	Reads all the necessary constants from CCDB into static variables.
static void	setCcdbPath(String aPath)	Sets the path to the database directory that contains the core parameters and constants for the SVT.
static void	showLayerShiftData()	Prints alignment shift data for sectors to screen.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

LOGGER

public static Logger LOGGER

VERBOSE

public static boolean VERBOSE

NREGIONS

public static int NREGIONS

NSECTORS

public static int[] NSECTORS

NFIDUCIALS

public static int NFIDUCIALS

NMODULES

public static int NMODULES

NSENSORS

public static int NSENSORS

NSTRIPS

public static int NSTRIPS

NPADS

public static int NPADS

STRIPOFFSETWID

public static double STRIPOFFSETWID

READOUTPITCH

public static double READOUTPITCH

STEREOANGLE

public static double STEREOANGLE

STATUS

public static int[] STATUS

RSI

public static int[][] RSI

PHI0

public static double PHI0

SECTOR0

public static double SECTOR0

REFRADIUS

public static double[] REFRADIUS

LAYERPOSFAC

public static double LAYERPOSFAC

Z0ACTIVE

public static double[] Z0ACTIVE

SUPPORTRADIUS

public static double[] SUPPORTRADIUS

FIDCUX

public static double FIDCUX

FIDPKX

public static double FIDPKX

FIDORIGINZ

public static double FIDORIGINZ

FIDCUZ

public static double FIDCUZ

FIDPKZ0

public static double FIDPKZ0

FIDPKZ1

public static double FIDPKZ1

ACTIVESENWID

public static double ACTIVESENWID

PHYSSENWID

public static double PHYSSENWID

DEADZNWID

public static double DEADZNWID

SILICONTHK

public static double SILICONTHK

PHYSSENLEN

public static double PHYSSENLEN

ACTIVESENLEN

public static double ACTIVESENLEN

DEADZNLEN

public static double DEADZNLEN

MICROGAPLEN

public static double MICROGAPLEN

NMATERIALS

public static int NMATERIALS

MATERIALTYPES

public static HashMap<String,String> MATERIALTYPES

MATERIALDIMENSIONS

public static HashMap<String,double[]> MATERIALDIMENSIONS

PASSIVETHK

public static double PASSIVETHK

NLAYERS

public static int NLAYERS

NTOTALSECTORS

public static int NTOTALSECTORS

NTOTALFIDUCIALS

public static int NTOTALFIDUCIALS

LAYERRADIUS

public static double[][] LAYERRADIUS

LAYERGAPTHK

public static double LAYERGAPTHK

MODULELEN

public static double MODULELEN

STRIPLENMAX

public static double STRIPLENMAX

MODULEWID

public static double MODULEWID

SECTORLEN

public static double SECTORLEN

SIDETOL

public static final double SIDETOL

See Also:

• Constant Field Values

LENGTHTOL

public static final double LENGTHTOL

See Also:

• Constant Field Values

FARADAYCAGERMIN

public static double[] FARADAYCAGERMIN

FARADAYCAGERMAX

public static double[] FARADAYCAGERMAX

FARADAYCAGELENGTH

public static double[] FARADAYCAGELENGTH

FARADAYCAGEZPOS

public static double[] FARADAYCAGEZPOS

FARADAYCAGENAME

public static String[] FARADAYCAGENAME

FARADAYCAGERADLEN

public static double[] FARADAYCAGERADLEN

FARADAYCAGEZOVERA

public static double[] FARADAYCAGEZOVERA

FARADAYCAGERHO

public static double[] FARADAYCAGERHO

FARADAYCAGEI

public static double[] FARADAYCAGEI

REGIONPEEKRMIN

public static double[] REGIONPEEKRMIN

REGIONPEEKRMAX

public static double[] REGIONPEEKRMAX

REGIONPEEKLENGTH

public static double[] REGIONPEEKLENGTH

MATERIALPROPERTIES

public static final Map<String,double[]> MATERIALPROPERTIES

Constructor Details

SVTConstants

public SVTConstants()

Method Details

connect

public static org.jlab.detector.calib.utils.DatabaseConstantProvider connect(org.jlab.detector.calib.utils.DatabaseConstantProvider cp)

Loads the the necessary tables for the SVT geometry for a given DatabaseConstantProvider.

Returns:

DatabaseConstantProvider the same thing

getCcdbPath

public static String getCcdbPath()

Returns the path to the database directory that contains the core parameters and constants for the SVT.
To use with DatabaseConstantProvider:

• Access tables with getCcdbPath() +"table".
• Access constants with getCcdbPath() +"table/constant".

Returns:

String a path to a directory in CCDB of the format "/geometry/detector/"

setCcdbPath

public static void setCcdbPath(String aPath)

Sets the path to the database directory that contains the core parameters and constants for the SVT.

Parameters:

aPath - a path to a directory in CCDB of the format "/geometry/detector/"

load

public static void load(org.jlab.detector.calib.utils.DatabaseConstantProvider cp)

Reads all the necessary constants from CCDB into static variables. Please use a DatabaseConstantProvider to access CCDB and load the following tables: svt, region, support, fiducial, material, alignment.

Parameters:

cp - a ConstantProvider that has loaded the necessary tables

showLayerShiftData

public static void showLayerShiftData()

Prints alignment shift data for sectors to screen.

convertRegionSectorFiducial2Index

public static int convertRegionSectorFiducial2Index(int aRegion,
 int aSector,
 int aFiducial)
                                             throws IllegalArgumentException

Converts RSF indices to linear index.Useful for writing data files.

Parameters:

aRegion - an index starting from 0

aSector - an index starting from 0

aFiducial - an index starting from 0

Returns:

int an index used for fiducial survey data

Throws:

IllegalArgumentException - indices out of bounds

convertIndex2RegionSectorFiducial

public static int[] convertIndex2RegionSectorFiducial(int aSurveyIndex)
                                               throws IllegalArgumentException

Converts linear index to Region, Sector, and Fiducial indices. For use with data files.

Parameters:

aSurveyIndex - an index used for fiducial survey data

Returns:

int[] an array containing RSF indices

Throws:

IllegalArgumentException - index out of bounds

convertRegionSector2Index

public static int convertRegionSector2Index(int aRegion,
 int aSector)
                                     throws IllegalArgumentException

Converts RS indices to linear index.

Parameters:

aRegion - an index starting from 0

aSector - an index starting from 0

Returns:

int an index used for sector modules

Throws:

IllegalArgumentException - indices out of bounds

convertIndex2RegionSector

public static int[] convertIndex2RegionSector(int aSvtIndex)

Converts linear index to Region and Sector indices. For use with data files.

Parameters:

aSvtIndex - an index starting from 0

Returns:

int[] an array containing RS indices

Throws:

IllegalArgumentException - index out of bounds

convertLayer2RegionModule

public static int[] convertLayer2RegionModule(int aLayer)
                                       throws IllegalArgumentException

Converts Layer index to Region, Module indices.

Parameters:

aLayer - an index starting from 0

Returns:

int[] an array containing RM indices

Throws:

IllegalArgumentException - index out of bounds

convertRegionModule2Layer

public static int convertRegionModule2Layer(int aRegion,
 int aModule)
                                     throws IllegalArgumentException

Converts Region, Module indices to Layer index.

Parameters:

aRegion - an index starting from 0

aModule - an index starting from 0

Returns:

int layer index starting from 0

Throws:

IllegalArgumentException - indices out of bounds

getPhi

public static double getPhi(int aRegion,
 int aSector)

Returns the azimuth angle from the x-axis for a given sector module.

Parameters:

aRegion - an index starting from 0

aSector - an index starting from 0

Returns:

double an angle in radians

getDetectorFrame

public static Transform getDetectorFrame(int aRegion,
 int aSector,
 double aRadius,
 double aZ)
                                  throws IllegalArgumentException

Returns a transformation from the local frame to the ideal lab frame (not accounting for shifts and rotations), for a given sector module.

Parameters:

aRegion - an index starting from 0

aSector - an index starting from 0

aRadius - transverse distance from beamline

aZ - longitudinal distance along beamline

Returns:

Transformation3D a sequence of transformations

Throws:

IllegalArgumentException - indices out of bounds

getStripFrame

public static Transform getStripFrame(boolean aFlip)

Returns a transformation for the strip frame to the local frame.

Parameters:

aFlip - whether the transformation should append a rotation of 180 deg about the z axis

Returns:

Transformation3D a sequence of transformations

getLayerSectorAlignmentData

public static double[][][] getLayerSectorAlignmentData()

Returns the layer/sector alignment data

Returns:

getGlobalAlignmentData

public static double[] getGlobalAlignmentData()

Returns the layer/sector alignment data

Returns: