gwm17/catima
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This commit is contained in:
hrocho 2018-02-16 16:13:09 +01:00
parent a98da0d8fe
commit 556a2a2fea
5 changed files with 16 additions and 8 deletions
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6
calculations.cpp
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@ -556,6 +556,10 @@ double beta_from_T(double T){
return sqrt(1.0-1.0/(gamma*gamma));
}
double p_from_T(double T, double M){
return sqrt(T*(T+2*atomic_mass_unit))*M;
}
double energy_straggling_firsov(double z1,double energy, double z2, double m2){
double gamma = gamma_from_T(energy);
double beta2=1.0-1.0/(gamma*gamma);
@ -566,7 +570,7 @@ double energy_straggling_firsov(double z1,double energy, double z2, double m2){
double angular_scattering_variance(Projectile &p, Target &t){
if(p.T<=0)return 0.0;
double e=p.T;
double _p = sqrt(e*(e+2*atomic_mass_unit))*p.A;
double _p = p_from_T(e,p.A);
double beta = _p/((e+atomic_mass_unit)*p.A);
double lr = radiation_length(t.Z,t.A);
return 198.81 * pow(p.Z,2)/(lr*pow(_p*beta,2));

1
calculations.h
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@ -174,6 +174,7 @@ namespace catima{
//helper
double gamma_from_T(double T);
double beta_from_T(double T);
double p_from_T(double T, double M);
std::complex<double> lngamma( const std::complex<double> &z );
std::complex<double> hyperg(const std::complex<double> &a,
const std::complex<double> &b,

12
catima.cpp
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@ -418,18 +418,20 @@ double calculate_tof_from_E(Projectile p, double Eout, const Material &t, const
return res;
}
double w_magnification(Projectile p, double Ein, const Material &t, const Config &c){
double res = 1.0;
std::pair<double,double> w_magnification(Projectile p, double Ein, const Material &t, const Config &c){
std::pair<double, double> res{1.0,1.0};
if(t.density()<= 0.0 || t.thickness()<=0){
return res;
}
std::vector<double> energies{0.99*Ein, Ein, 1.1*Ein};
std::vector<double> energies{0.99*Ein, Ein, 1.01*Ein};
auto eres = energy_out(p,energies,t,c);
if(eres[0]>0.0 && eres[1]>0.0 && eres[2]>0.0){
res = energies[1]*(eres[2]-eres[0])/(eres[1]*(energies[2]-energies[0]));
res.first = energies[1]*(eres[2]-eres[0])/(eres[1]*(energies[2]-energies[0]));
res.second = p_from_T(energies[1],p.A)*(p_from_T(eres[2],p.A)-p_from_T(eres[0],p.A))/( p_from_T(eres[1],p.A)*( p_from_T(energies[2],p.A)-p_from_T(energies[0],p.A) ) );
}
else {
res = 0.0;
res.first = 0.0;
res.second = 0.0;
}
return res;
}

2
catima.h
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@ -212,7 +212,7 @@ namespace catima{
/**
* returns energy magnification after passing material t
*/
double w_magnification(Projectile p, double Ein, const Material &t, const Config &c=default_config);
std::pair<double,double> w_magnification(Projectile p, double Ein, const Material &t, const Config &c=default_config);
class DataPoint;
/**

3
catimac.pxd
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@ -6,6 +6,7 @@
"""
from libcpp.vector cimport vector
from libcpp.pair cimport pair
from libcpp cimport bool
cdef extern from "catima/structures.h" namespace "catima":
@ -87,7 +88,7 @@ cdef extern from "catima/catima.h" namespace "catima":
cdef Result calculate(Projectile &p, const Material &t, const Config &c);
cdef MultiResult calculate(Projectile &p, const Layers &layers, const Config &c);
cdef double w_magnification(Projectile p, double E, const Material &t, const Config &c);
cdef pair[double,double] w_magnification(Projectile p, double E, const Material &t, const Config &c);
cdef extern from "catima/calculations.h" namespace "catima":
cdef double bethek_lindhard(const Projectile &p);