High-precision, reference-free measurements of 2p $\to$ 1s transitions in boron-like sulfur and argon

Louis Duval, Emily Lamour, Stéphane Macé +6

We have measured several 2p $\to$ 1s transition energies in core-excited boron-like ions of sulfur and argon. The measurements are reference-free, with an accuracy of a few…