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The ESTAR program calculates stopping power, density effect parameters, range, and radiation yield tables for electrons 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 .001 MeV to 10000 MeV.

Graphical version (New feature allows downloading user-specified columns in ASCII format)
Material composition data

Select a common material:

or enter a unique material

Additional Energies (optional):

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

Note: Only stopping powers and the density effect parameter will be calculated if additional energies are used.