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/* Copyright (c) 2019, Anthony Latorre <tlatorre at uchicago>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef OPTICS_H
#define OPTICS_H
#include "dict.h"
/* Global error string when optics_init() returns -1. */
extern char optics_err[256];
/* Initialize the optics data by reading in the RSPR bank and precomputing the
* average absorption and scattering tables. */
int optics_init(dict *db);
/* Functions for computing the index of refraction. */
double get_index(double p, double wavelength, double T);
double get_index_snoman_h2o(double wavelength);
double get_index_snoman_d2o(double wavelength);
/* Functions for computing the probability that a photon is not absorbed or
* scattered after a certain distance. */
double get_fabs_d2o(double x);
double get_fabs_h2o(double x);
double get_fabs_acrylic(double x);
double get_fsct_d2o(double x);
double get_fsct_h2o(double x);
/* Functions for computing the absorption and scattering length as a funcion of
* wavelength. */
double get_absorption_length_snoman_d2o(double wavelength);
double get_absorption_length_snoman_h2o(double wavelength);
double get_absorption_length_snoman_acrylic(double wavelength);
double get_rayleigh_scattering_length_snoman_d2o(double wavelength);
double get_rayleigh_scattering_length_snoman_h2o(double wavelength);
#endif
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