GCOMD2Response::bkg_gauss_kernel Class Reference

Inheritance diagram for GCOMD2Response::bkg_gauss_kernel:

Public Member Functions
	bkg_gauss_kernel (const double &ereco, const double &e0, const double &sigma)
double	eval (const double &e)
	Computes Compton background multiplied with Gaussian.
Public Member Functions inherited from GFunction
	GFunction (void)
	Void constructor.
	GFunction (const GFunction &function)
	Copy constructor.
virtual	~GFunction (void)
	Destructor.
GFunction &	operator= (const GFunction &function)
	Assignment operator.

Protected Attributes
double	m_ereco
double	m_e0
	Incident energy (MeV)
double	m_wgt
	Inverse of Gaussian standard deviation (1/MeV)

Additional Inherited Members
Protected Member Functions inherited from GFunction
void	init_members (void)
	Initialise class members.
void	copy_members (const GFunction &function)
	Copy class members.
void	free_members (void)
	Delete class members.

Detailed Description

Definition at line 113 of file GCOMD2Response.hpp.

Constructor & Destructor Documentation

bkg_gauss_kernel()

GCOMD2Response::bkg_gauss_kernel::bkg_gauss_kernel ( const double & ereco, const double & e0, const double & sigma )

inline

Definition at line 115 of file GCOMD2Response.hpp.

Member Function Documentation

eval()

double GCOMD2Response::bkg_gauss_kernel::eval ( const double & e )

virtual

Computes Compton background multiplied with Gaussian.

Parameters

[in]

e

Energy (MeV).

Returns

Gaussian kernel value.

Computes a Gaussian kernel value using

$$B_{\rm c}(E|E',E_0) = \frac{1}{\sigma(E') \sqrt{2\pi}} \exp \left( -\frac{1}{2} \frac{(E-E')^2}{\sigma^2(E')} \right)$$

where $E'$ is the reconstructed energy, $\sigma(E')$ is the standard deviation at the reconstructed energy, and $E$ is the energy over which the convolution is performed.

The code implementation is based on the COMPASS RESRS209 function FUNC2.F (release 1.0, 14-Oct-91).

Implements GFunction.

Definition at line 1099 of file GCOMD2Response.cpp.

References gammalib::inv_sqrt2pi.

Member Data Documentation

m_e0

double GCOMD2Response::bkg_gauss_kernel::m_e0

protected

Incident energy (MeV)

Definition at line 124 of file GCOMD2Response.hpp.

m_ereco

double GCOMD2Response::bkg_gauss_kernel::m_ereco

protected

Definition at line 123 of file GCOMD2Response.hpp.

m_wgt

double GCOMD2Response::bkg_gauss_kernel::m_wgt

protected

Inverse of Gaussian standard deviation (1/MeV)

Definition at line 125 of file GCOMD2Response.hpp.

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

• inst/com/include/GCOMD2Response.hpp
• inst/com/src/GCOMD2Response.cpp