Last update: 11 June, 2021 (see Updates)
This site contains experimental stopping power data published since the 1930s. The collection considers all ions and targets: solids (amorphous or polycrystalline), gases, elements and compounds, including new materials such as polymers, oxides and silicates. It treats the "electronic" stopping power, assuming that "nuclear" stopping has been subtracted or is negligible.
Detailed information on the content and organization of the database is provided in the Introduction page.
The history and pioneering work of Helmut Paul can be found in the About page.
Data and graphs can be downloaded from the tables for Hydrogen Ions, Helium Ions, Li to Ar Ions and K to U Ions. Not all the data in the database are available in graphs. Work is in progress to complete them.
Please send your questions, comments and suggestions regarding...
...methods, graphs and data to:
Dr Claudia Montanari / Instituto de Astronomía y Física del Espacio / Universidad de Buenos Aires - CONICET
...this site to:
International Atomic Energy Agency / Nuclear Data Section