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Timestamp:
09/06/10 16:52:23 (21 months ago)
Author:
farhi
Message:

data: corrected unit cell definition w.r.t chemical formula, which effects cross sections in PowderN, Single X, Isotropic Sqw

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  • trunk/nlib/data/Al.laz

    r2012 r2925  
    77# 
    88# Physical parameters: 
    9 # sigma_coh 1.495   coherent scattering cross section in [barn] 
    10 # sigma_inc 0.0082  incoherent scattering cross section in [barn] 
    11 # sigma_abs 0.231   absorption scattering cross section in [barn] 
     9# sigma_coh 1.495   coherent scattering cross section (single atom) in [barn] 
     10# sigma_inc 0.0082  incoherent scattering cross section (single atom)in [barn] 
     11# sigma_abs 0.231   absorption scattering cross section (single atom) in [barn] 
    1212# density   2.70    in [g/cm^3] 
    13 # weight    26.98   in [g/mol] 
    14 # nb_atoms  4       in [atoms/unit cell] 
     13# weight    26.98   in [g/mol] (single atom) 
     14# multiplicity  4   in [atoms/unit cell] 
     15# Vc        66.4    volume of unit cell in [A^3] 
    1516# v_sound   5100    in [m/s] 
    1617# v_sound_l 6420    velocity of longitudinal sound in [m/s]