- Conference date: 19-22 April 2004
- Location: Santa Fe, New Mexico (USA)
High quality fundamental atomic data provide the foundation of accurate collisional‐radiative models of laboratory and astrophysical plasmas. In the SciDAC (Scientific Discovery through Advanced Computing) project entitled “Terascale Computational Atomic Physics for the Edge Region in Controlled Fusion Plasmas,” we employ an integrated approach from the calculation of basic atomic data to the modeling necessary for the interpretation of controlled nuclear fusion experiments. For example, helium electron‐impact excitation results support helium puff experiments on the MAST (Mega Ampere Spherical Tokamak) at Culham to diagnose the radial variation in plasma density and temperature. Similarly, electron‐impact excitation/ionization work for isonuclear beryllium will prove vital if beryllium is adopted as a surface material for the plasma‐facing walls for ITER. Here we will discuss some examples of electron‐impact excitation and ionization, where the effects of coupling to and between the target continuum states are large, and advanced close‐coupling methods are required in order to generate data of sufficient accuracy.
- Astrophysical plasmas
- Atom scattering
- Atomic and molecular physics
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