1. Nion R&D , Kirkland, WA, USA
2. Institut für Physik & IRIS Adlershof , Humboldt-Universität zu Berlin, Berlin, Germany
3. Arizona State University Department of Physics, , Tempe, AZ, USA
4. Helmholtz Zentrum Berlin for Materials and Energy , Berlin, Germany
5. Sorbonne Université Institut de Minéralogie, Physique des Matériaux et Cosmochimie, , Paris, France
6. Pacific Northwest National Laboratory , Richland, WA, USA