\def\spitzerformula{T_{e}(0,t)=\left(\dfrac{R_0}{a^2}\dfrac{8 Z_{eff.}}{1544}\frac{1}{R_{p}(t)}\right)^{2/3}, [eV; m, \Omega]}
\def\spitzerformulaGOLEM{T_{e}(0,t)=0.9\cdot\left(\dfrac{I_p(t)}{U_l(t)}\right)^{2/3}, [eV; A, V]}
\def\DTreactionfull{$$\bf{ ^2_1D_{(10keV)}+^3_1T_{(10keV)}\Rightarrow ^4_2He_{(3.5MeV)}+n_{(14.1MeV)}}$$}
\def\DTreaction{$\bf{ ^2_1D+^3_1T\Rightarrow ^4_2He_{(3.5MeV)}+n_{(14.1MeV)}}$}
\def\PPreaction{$\bf{ 4\ ^1_1p\Rightarrow ^4_2He+2\ e^++2\ \nu_e + 2\ \gamma + 26.73\ MeV}$}