Time-dependent collisional radiative modeling and ultra-violet spectroscopy of neutral tungsten for erosion diagnosis

High-Z materials such as tungsten and molybdenum have become leading solutions for plasma-facing materials. There are uncertainties in both erosion and transport of these elements requiring further research. The spectral emission of these high-Z species in combination with Collisional Radiative (CR) modeling can provide necessary information for plasma transport modeling. The Python program, ColRadPy, has been developed to solve collisional-radiative and ionization balance equations which can be applied to fusion, laboratory, and astrophysical plasmas. The program provides generalized coefficients that can be used in existing plasma modeling codes and spectral diagnostics.