8.6. Total Radiated Power¶
- class cherab.core.model.plasma.total_radiated_power.TotalRadiatedPower¶
Emitter that calculates total power radiated by a given ion, which includes:
line power due to electron impact excitation,
continuum and line power due to recombination and Bremsstrahlung,
line power due to charge exchange with thermal neutral hydrogen and its isotopes.
The emission calculated by this model is spectrally unresolved, which means that the total radiated power will be spread of the entire observable spectral range.
\[\epsilon_{\mathrm{total}} = \frac{1}{4 \pi \Delta\lambda} \left( n_{Z_\mathrm{i}} n_\mathrm{e} C_{\mathrm{excit}}(n_\mathrm{e}, T_\mathrm{e}) + n_{Z_\mathrm{i} + 1} n_\mathrm{e} C_{\mathrm{recomb}}(n_\mathrm{e}, T_\mathrm{e}) + n_{Z_\mathrm{i} + 1} n_\mathrm{hyd} C_{\mathrm{cx}}(n_\mathrm{e}, T_\mathrm{e}) \right)\]where \(n_{Z_\mathrm{i}}\) is the target species density; \(n_{Z_\mathrm{i} + 1}\) is the recombining species density; \(n_{\mathrm{hyd}}\) is the total density of all hydrogen isotopes; \(C_{\mathrm{excit}}, C_{\mathrm{recomb}}, C_{\mathrm{cx}}\) are the radiated power coefficients in \(W m^3\) due to electron impact excitation, recombination + Bremsstrahlung and charge exchange with thermal neutral hydrogen, respectively; \(\Delta\lambda\) is the observable spectral range.
- Parameters:
element (Element) – The atomic element/isotope.
charge (int) – The charge state of the element/isotope.
plasma (Plasma) – The plasma to which this emission model is attached. Default is None.
atomic_data (AtomicData) – The atomic data provider for this model. Default is None.