Changes between Initial Version and Version 1 of Ticket #702, comment 4


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Timestamp:
Jul 11, 2017 12:20:54 PM (7 years ago)
Author:
pkienzle
Comment:

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  • Ticket #702, comment 4

    initial v1  
    77    I(q) = pi/L V/q [drho 2 J1(q r)/(q r)]^2 
    88}}} 
     9 
    910This matches the peaks well, but underestimates the dips.  With minimal polydispersity or resolution the precise value of the dips won't matter and this approximation will be good enough.  It breaks down at low q for shorter cylinder lengths. 
     11 
     12 
     13Note: sasmodels kernels use V rather than V^2 because the polydispersity loop does volume weighted normalization, which still doesn't explain the 1/L vs. L difference. 
     14