/* Number of photons in pulse */
#define FLUENCE (2.0e11)

/* Detector's quantum efficiency */
#define DQE (0.9)

/* ADU per photon (front detector) */
#define DETECTOR_GAIN (167.0)

/* Radius of the water column */
#define WATER_RADIUS (3.0e-6 / 2.0)

/* Radius of X-ray beam */
#define BEAM_RADIUS (3.0e-6 / 2.0)

/* Photon energy in eV */
#define PHOTON_ENERGY (8000.0)