UKAEA Papers

"Use of the CHEM He II atomic data in JET EDGE2D-EIRENE simulations"

• K D Lawson
• M Groth
• D Harting
• S Menmuir
• K M Aggarwal
• S Brezinsek
• I H Coffey
• G Corrigan
• F P Keenan
• C F Maggi
• A G Meigs
• M G O'Mullane
• S Wiesen

"Comparisons of new He II atomic data with JET line ratio measurements and their application to EDGE2D-EIRENE simulations"

• K D Lawson
• M Groth
• D Harting
• S Menmuir
• D Reiter
• K M Aggarwal
• S Brezinsek
• I H Coffey
• G Corrigan
• F P Keenan
• C F Maggi
• A G Meigs
• M G O’Mullane
• S Wiesen
• JET Contributors

An understanding of the plasma edge and divertor is essential for predicting the performance of next-step machines such as ITER. Transport codes used to study the divertor behaviour [1] employ atomic physics data in two applications. The first is to predict the power radiated by the fuel and impurity atoms, which is carried out as a post-processing…

"Population modelling of the He II energy levels in tokamak plasmas. I : Collisional excitation model."

• Kerry Lawson
• K M Aggarwal, I H Coffey, F P Keenan, M G O'Mullane

Helium is widely used as a fuel or minority gas in laboratory fusion experiments, and will be present as ash in DT thermonuclear plasmas.  It is therefore essential to have a good understanding of its atomic physics.  To this end He II population modelling has been undertaken for the spectroscopic levels arising from shells with principal quantum…