1 files changed, 44 insertions, 0 deletions
diff --git a/models/bremss.hpp b/models/bremss.hpp
new file mode 100644
index 0000000..9956a3e
--- /dev/null
+++ b/models/bremss.hpp
@@ -0,0 +1,44 @@
+#ifndef BREMSS_MODEL_H_
+#define BREMSS_MODEL_H_
+#include <core/fitter.hpp>
+#include <cmath>
+
+namespace opt_utilities
+{
+  template <typename T>
+  class bremss
+    :public model<T,T,std::vector<T>,std::string>
+  {
+  private:
+    model<T,T,std::vector<T> >* do_clone()const
+    {
+      return new bremss<T>(*this);
+    }
+  public:
+    bremss()
+    {
+      this->push_param_info(param_info<std::vector<T> >("norm",1));
+      this->push_param_info(param_info<std::vector<T> >("kT",1));
+    }
+
+    T do_eval(const T& x,const std::vector<T>& param)
+    {
+      T norm=get_element(param,0);
+      T kT=get_element(param,1);
+      
+      return norm*sqrt(kT)*exp(-x/kT);
+    }
+
+  private:
+    std::string do_to_string()const
+    {
+      return "Simplified bremss model\n"
+	"flux=norm*kT^0.5*e^{-E/kT}\n";
+    }
+  };
+};
+
+
+
+#endif
+//EOF