STERNHEIme

     allows to input Sternheimer density effect parameters

     See also MAT-PROP

     
WHAT(1)
 = Sternheimer -C (Cbar) parameter

     
WHAT(2)
 = Sternheimer X0 parameter

     
WHAT(3)
 = Sternheimer X1 parameter

     
WHAT(4)
 = Sternheimer a  parameter

     
WHAT(5)
 = Sternheimer m  parameter

     
WHAT(6)
 = Sternheimer delta0 parameter (only for single elements)

     
SDUM
    = index of the material to which Sternheimer parameters
               apply. Exceptionally, here 
SDUM
 must be an integer
               number, in free format, rather than a character string.

     
Default
 (option STERNHEIme not given): density effect parameters are
             computed according to the Sternheimer-Peierls general
             formula

     
Notes:
         1) For gases the parameters are supposed to be given at
            1.0 atm (NTP); the code takes care to scale them at the
            actual pressure as given by the MAT-PROP card.
            MAT-PROP can be used also to override the value of the
            average ionisation potential used by the program.
            Sternheimer parameters and ionisation potentials
            for elements, compounds and mixtures can be found in [Ste84].

         2) STERNHEIme is one of the two FLUKA options where 
SDUM
 is used to
            input numerical data. (Actually, the material number is
            first read as a string and then an internal reading is
            performed on the string to get the number).

     
Example:

 *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
 MATERIAL         29.       0.0      8.96       12.       0.0       0. COPPER
 STERNHEIme    4.4190   -0.0254    3.2792   0.14339    2.9044      0.08  12
 *  Use the copper Sternheimer parameters published in At. Data Nucl. Data
 *  Tab. 30, 261-271 (1984)

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