1. Astro Fusion Spectre, LLC, San Diego,
California 92127, USA
2. Max Planck Institute for Plasma Physics,
Boltzmannstr. 2, D-85748 Garching, Germany
3. Service de Chimie Quantique et Photophysique, Universite Libre de Bruxelles (ULB), CP 160/09, 1050 Brussels,
Belgium
4. National Research Center Kurchatov Institute,
Akademika Kurchatova sq. 1, 123182 Moscow, Russia
5. Department of Engineering Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA