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/*
* beam-parameters.h
*
* Beam parameters
*
* (c) 2006-2010 Thomas White <taw@physics.org>
*
* Part of CrystFEL - crystallography with a FEL
*
*/
#ifndef BEAM_PARAMETERS_H
#define BEAM_PARAMETERS_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
struct beam_params
{
double fluence; /* photons per pulse */
double beam_radius; /* metres */
double photon_energy; /* eV per photon */
double bandwidth; /* FWHM(wavelength) over wavelength.
* Note: current simulation code just uses
* a rectangular distribution with this as
* its (full) width. */
double divergence; /* divergence (radians) */
double dqe; /* Detector DQE (fraction) */
double adu_per_photon; /* Detector "gain" */
};
extern struct beam_params *get_beam_parameters(const char *filename);
#endif /* BEAM_PARAMETERS_H */
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