Composition of HELIUM:

             Density (g/cm3) = 1.66322E-04
 Mean Excitation Energy (eV) = 41.800000

 COMPOSITION:

        Z = Atomic number
       WT = Fraction by weight

               Z        WT
               2  1.000000
All materials:

Note: not every material in the above list is available in the ASTAR and PSTAR databases.

ESTARASTARPSTAR

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