[mcstas-users] sigma_inc issue

[陈彦舟]

Hi all,

   I set the parameter “sigma_inc” of  PowderN component as 0.4, but no platform background is found!

   Then I set it much more larger as 400 on purpose, no platform background is found either ( In this case, more peaks are observed.)

  

   Could you please shed light on it?

 

   SPLIT 10 COMPONENT sample = PowderN(

    reflections = "Fe.laz", radius = 0.005,

    yheight = 0.1, Vc = 23.55, sigma_abs = 2.56, sigma_inc = 0.4)

  AT (0, 0, 0.05) RELATIVE virtual_out

 

Best wishes,

Tom









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