[mcstas-users] Guide_gravity Problem

[Lingnan Shen]

Hi all,

        I was trying to learn how to use the guide_gravity component. I
tried to define the reflectivity curve but I get zero neutrons at the
wavelength monitor in the end of guide. I have attached my .instr and .rfl
file. I also found that even if the neutron beam just go through the guide.
The detector at the end still see nothing.
        Also another question about transmission of certain setup. To
calculate the ratio of neutron_in / neutron_out. I want to know how much
neutron remained after passing through that setup. Should I use the flux or
the events count?

Sincerely,
Lingnan Shen
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