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  • doc/guide/resolution.rst

    r8d2df05 rdb1d9d5  
    11.. resolution.rst 
    22 
    3 .. This is a port of the original SasView html help file sm_help to ReSTructured  
     3.. This is a port of the original SasView html help file sm_help to ReSTructured 
    44.. text by S King, ISIS, during SasView CodeCamp-III in Feb 2015. 
    55 
     
    1717resolution contribution into a model calculation/simulation (which by definition 
    1818will be exact) to make it more representative of what has been measured 
    19 experimentally - a process called *smearing*. The Sasmodels component of SasView  
     19experimentally - a process called *smearing*. The Sasmodels component of SasView 
    2020does the latter. 
    2121 
     
    3232 
    3333.. note:: 
    34     Problems may be encountered if the data set loaded by SasView is a  
    35     concatenation of SANS data from several detector distances where, of  
    36     course, the worst Q resolution is next to the beam stop at each detector  
    37     distance. (This will also be noticeable in the residuals plot where  
    38     there will be poor overlap). SasView sensibly orders all the input  
    39     data points by increasing Q for nicer-looking plots, however, the dQ  
    40     data can then vary considerably from point to point. If 'Use dQ data'  
    41     smearing is selected then spikes may appear in the model fits, whereas  
     34    Problems may be encountered if the data set loaded by SasView is a 
     35    concatenation of SANS data from several detector distances where, of 
     36    course, the worst Q resolution is next to the beam stop at each detector 
     37    distance. (This will also be noticeable in the residuals plot where 
     38    there will be poor overlap). SasView sensibly orders all the input 
     39    data points by increasing Q for nicer-looking plots, however, the dQ 
     40    data can then vary considerably from point to point. If 'Use dQ data' 
     41    smearing is selected then spikes may appear in the model fits, whereas 
    4242    if 'None' or 'Custom Pinhole Smear' are selected the fits look normal. 
    43      
    44     In such instances, possible solutions are to simply remove the data  
    45     with poor Q resolution from the shorter detector distances, or to fit  
     43 
     44    In such instances, possible solutions are to simply remove the data 
     45    with poor Q resolution from the shorter detector distances, or to fit 
    4646    the data from different detector distances simultaneously. 
    4747 
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