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The ASTAR program calculates stopping power and range tables for helium ions in various materials. Select a material and enter the desired energies or use the default energies. Energies are specified in MeV, and must be in the range from 0.001 MeV to 1000 MeV.

Help                         Text version                         Material composition data

Graph stopping power:
    Total Stopping Power
    Electronic Stopping Power
    Nuclear Stopping Power
Graph range:
    CSDA Range
    Projected Range
Graph detour factor
No graph
Additional Energies (optional):

Use energies from a file*


Use energies entered below (one per line)
    Include default energies

* Your browser must be file-upload compatible.