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FLUKA: 13.2.17} rfrndx.f: user-defined ReFRaction iNDeX Previous Index Next

13.2.17} rfrndx.f: user-defined ReFRaction iNDeX

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     Argument list (all variables are input only):
          WVLNGT : photon wavelength (in cm)
          OMGPHO : angular frequency (omega = 2pi nu) of the photon (in s-1)
          MMAT   : material index

 Function RFRNDX returns a user-defined  refraction index of the current
 material for an optical photon of the given wavelength or frequency.
 It is activated by OPT-PROP, with 
SDUM
= blank, and
WHAT(1)
< -99. See option OPT-PROP and Chap. 12} for more information.

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