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Hello,<br>
<br>
I am trying to simulate a spin precession setup that yields a
spatial modulation pattern after an analyzer. The modulations
clearly show up on the PSD_monitor (see screenshot), but curiously
the downward swings go below zero intensity! I wonder how that is
possible, and what I could possibly do against it. I also do not
understand the units of intensity: I send a million neutrons to an
area of 5 cm^2, to get intensities of the order 10^-13...<br>
<br>
<img src="cid:part1.00070402.09090203@tudelft.nl" alt=""
height="377" width="671"><br>
<br>
I attach the instrument description, together with the components
Foil_flipper_magnet and Analyser_ideal it depends on. And the result
I get when I run it.<br>
<br>
Thanks in advance,<br>
Serge Duarte Pinto<br>
<br>
<br>
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