>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

The subdirectory './pdfiles/' contains the PENELOPE physics database. Do
not modify any file in this subdirectory. The executable binary codes
'material.exe', 'tables.exe', and 'shower.exe' must be placed in the
directory '/pendbase/', where the present file is. These executables
assume that the original directory structure of the PENELOPE
distribution package has been preserved. That is, they will work only if
they are in the parent directory of './pdfiles/'.

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