dwvisser.nuclear
Class Reaction

java.lang.Object
  |
  +--dwvisser.nuclear.Reaction

public class Reaction

extends java.lang.Object

Given experimental parameters beam energy, beam, target, projectile, can give useful quantities via it's getter methods. Core of code is from Kazim Yildiz's relkin code written Fortran.

Version:

1.0

Author:

Dale W Visser

Field Summary

protected Nucleus	beam target(beam,projectile)residual
static double	C speed of light, in m/s
static int	EXACT_OPTION options (can be or'ed together) for requesting QBrho
static double	P_TO_QBRHO Multiply p in MeV/c by this and get qbrho in kG cm
protected Nucleus	projectile target(beam,projectile)residual
static double	QBRHO_TO_P Multiply qbrho in kG cm by this and get p in Mev/c
protected Nucleus	residual target(beam,projectile)residual
protected Nucleus	target target(beam,projectile)residual
static int	UNCERTAIN_BEAM_MASS_OPTION
static int	UNCERTAIN_PROJECTILE_MASS_OPTION
static int	UNCERTAIN_RESIDUAL_MASS_OPTION
static int	UNCERTAIN_TARGET_MASS_OPTION

Constructor Summary

Reaction(Nucleus target, Nucleus beam, Nucleus projectile)
Simplified constructor for no excitation in the residual, forward direction for the projectile.

Reaction(Nucleus target, Nucleus beam, Nucleus projectile, double Tbeam, double thetaLab, double residualExcitation)

Reaction(Nucleus target, Nucleus beam, Nucleus projectile, double Tbeam, double thetaLab, UncertainNumber residualExcitation)
Constructor.

Reaction(Reaction r, double residExcite)

Reaction(Reaction r, double eBeam, double thetaLab, double residExcite)
Constructor to make some changes to the parameters of a previous instance.

Method Summary

int	getAngleDegeneracy() Returns 0,1, or 2, for the number of CM angles corresponding to the lab angle in this reaction.
Nucleus	getBeam()
double	getBeamEnergy() Returns energy of beam in MeV.
static double	getBeta(Particle p, double KE)
double	getCMAngleProjectile(int which) Returns the angle in degrees in the CM system of the projectile.
UncertainNumber	getEx4(UncertainNumber labMomentum3) Using the given momentum of the projectile in the lab, calculates the necessary excitation of the residual nucleus.
double	getFocusParameter(int which)
double	getJacobianProjectile(int which)
static double	getKE(Nucleus nuke, double qbr)
double	getLabAngleResidual(int which)
double	getLabBetaResidual(int which)
double	getLabEnergyProjectile(int which)
UncertainNumber	getLabEnergyProjectile(int which, int options)
double	getLabEnergyResidual(int which)
double	getLabGammaResidual(int which)
double	getLabMomentumResidual(int which)
Nucleus	getProjectile()
double	getQBrho(int which)
UncertainNumber	getQBrho(int which, int options)
static double	getQBrho(Nucleus nuke, double KE)
static UncertainNumber	getQBrho(Nucleus nuke, UncertainNumber KE, boolean varyMass)
UncertainNumber	getQValue() Returns the Q-value, which is the net energy released in the reaction.
Nucleus	getResidual()
Nucleus	getTarget()
double	getThetaLab()
double	getTotalEnergyProjectile(int which)
double	getTotalEnergyResidual(int which)
static void	main(java.lang.String[] args)
void	printStatus() Gives some information on the state of this object.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

C

public static final double C

speed of light, in m/s

See Also:

Constant Field Values

P_TO_QBRHO

public static final double P_TO_QBRHO

Multiply p in MeV/c by this and get qbrho in kG cm

See Also:

Constant Field Values

QBRHO_TO_P

public static final double QBRHO_TO_P

Multiply qbrho in kG cm by this and get p in Mev/c

See Also:

Constant Field Values

target

protected Nucleus target

target(beam,projectile)residual

beam

protected Nucleus beam

target(beam,projectile)residual

projectile

protected Nucleus projectile

target(beam,projectile)residual

residual

protected Nucleus residual

target(beam,projectile)residual

EXACT_OPTION

public static final int EXACT_OPTION

options (can be or'ed together) for requesting QBrho

See Also:

Constant Field Values

UNCERTAIN_BEAM_MASS_OPTION

public static final int UNCERTAIN_BEAM_MASS_OPTION

See Also:

Constant Field Values

UNCERTAIN_TARGET_MASS_OPTION

public static final int UNCERTAIN_TARGET_MASS_OPTION

See Also:

Constant Field Values

UNCERTAIN_PROJECTILE_MASS_OPTION

public static final int UNCERTAIN_PROJECTILE_MASS_OPTION

See Also:

Constant Field Values

UNCERTAIN_RESIDUAL_MASS_OPTION

public static final int UNCERTAIN_RESIDUAL_MASS_OPTION

See Also:

Constant Field Values

Constructor Detail

Reaction

public Reaction(Nucleus target,
                Nucleus beam,
                Nucleus projectile,
                double Tbeam,
                double thetaLab,
                UncertainNumber residualExcitation)
         throws KinematicsException

Constructor.

Parameters:

thetaLab - of projectile in degrees

target - nuclear species in target

beam - nuclear species of beam

projectile - nuclear species of projectile into spectrometer

Tbeam - beam energy in MeV

residualExcitation - excitation in MeV of the residual nucleus

Throws:

KinematicsException - if a cclculation error occurs

Reaction

public Reaction(Nucleus target,
                Nucleus beam,
                Nucleus projectile,
                double Tbeam,
                double thetaLab,
                double residualExcitation)
         throws KinematicsException

Reaction

public Reaction(Nucleus target,
                Nucleus beam,
                Nucleus projectile)
         throws KinematicsException

Simplified constructor for no excitation in the residual, forward direction for the projectile.

Parameters:

target - nuclear species of the target

beam - nuclear species of the beam

projectile - neuclear species of the projectile into the spectrometer

Throws:

KinematicsException - if a calculation problem occurs

Reaction

public Reaction(Reaction r,
                double eBeam,
                double thetaLab,
                double residExcite)
         throws KinematicsException

Constructor to make some changes to the parameters of a previous instance.

Parameters:

r - previous Reaction to copy species info from

eBeam - new beam energy in MeV

thetaLab - new lab angle in degrees

residExcite - new excitation in MeV for the residual nucleus

Throws:

KinematicsException - if a calculation problem occurs

Reaction

public Reaction(Reaction r,
                double residExcite)
         throws KinematicsException

Method Detail

getThetaLab

public double getThetaLab()

getQBrho

public UncertainNumber getQBrho(int which,
                                int options)
                         throws KinematicsException

KinematicsException

getEx4

public UncertainNumber getEx4(UncertainNumber labMomentum3)

Using the given momentum of the projectile in the lab, calculates the necessary excitation of the residual nucleus. This is useful for interpreting spectrometer measurements.

Parameters:

labMomentum3 - the lab frame momentum of the projectile, in MeV/c

Returns:

excitation energy of residual nucleus

printStatus

public void printStatus()

Gives some information on the state of this object.

getBeamEnergy

public double getBeamEnergy()

Returns energy of beam in MeV.

Returns:

beam energy in MeV

getResidual

public Nucleus getResidual()

Returns:

nuclear species of residual (including excitation energy)

getTarget

public Nucleus getTarget()

Returns:

nuclear species of target

getBeam

public Nucleus getBeam()

Returns:

nuclear species of beam

getProjectile

public Nucleus getProjectile()

Returns:

nuclear species of projectile into spectrometer

getQValue

public UncertainNumber getQValue()

Returns the Q-value, which is the net energy released in the reaction.

Returns:

the Q-value for this reaction

getAngleDegeneracy

public int getAngleDegeneracy()

Returns 0,1, or 2, for the number of CM angles corresponding to the lab angle in this reaction. Zero is returned in the case of the lab angle requested being over a maximum limiting angle.

Returns:

number of solutions

getCMAngleProjectile

public double getCMAngleProjectile(int which)

Returns the angle in degrees in the CM system of the projectile.

Parameters:

which - which of the solutions to return

Returns:

CM angle in degrees

getLabEnergyProjectile

public double getLabEnergyProjectile(int which)

getLabEnergyProjectile

public UncertainNumber getLabEnergyProjectile(int which,
                                              int options)
                                       throws KinematicsException

KinematicsException

getTotalEnergyProjectile

public double getTotalEnergyProjectile(int which)

getTotalEnergyResidual

public double getTotalEnergyResidual(int which)

getLabAngleResidual

public double getLabAngleResidual(int which)

getLabEnergyResidual

public double getLabEnergyResidual(int which)

getLabGammaResidual

public double getLabGammaResidual(int which)

getLabBetaResidual

public double getLabBetaResidual(int which)

getLabMomentumResidual

public double getLabMomentumResidual(int which)

getJacobianProjectile

public double getJacobianProjectile(int which)

getFocusParameter

public double getFocusParameter(int which)

getQBrho

public double getQBrho(int which)

getQBrho

public static double getQBrho(Nucleus nuke,
                              double KE)

getQBrho

public static UncertainNumber getQBrho(Nucleus nuke,
                                       UncertainNumber KE,
                                       boolean varyMass)

getKE

public static double getKE(Nucleus nuke,
                           double qbr)

getBeta

public static double getBeta(Particle p,
                             double KE)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

main

public static void main(java.lang.String[] args)