[neutron-mc] how to calculate neutron glass parameters

[Emmanuel Farhi]

Hello Timur,

The substrate has mainly an effect on the 'alpha' parameter, which usually
ranges from 3 to 7.
Silicon alpha=3
Float Glass and Borkron alpha=5 to 6
Polished Nickel (and probably ost metals) alpha~7
You may read the report
<http://www.ill.fr/tas/mcstas/instruments/ill/h15/R010216.ps.gz>.

Emmanuel.

Timur Elzhov wrote:

> Hello, dear McStas experts!
>
> In the `Guide' component the reflectivity function is defined,
> on alpha, m, W, Qc, R0 parameters.  But no one from them is considered
> in the description to the glasses the guide was maintained from.
>
> Could anybody hint me how should I calculate these parameters, or
> refer me to articles/papers/URL's, where this subject is discussed?
>
> Thanks a lot!
>
> --
> WBR,
> Timur V. Elzhov
>
> _______________________________________________
> neutron-mc mailing list
> neutron-mc at neutron.risoe.dk
> http://neutron.risoe.dk/mailman/listinfo/neutron-mc

--
What's up Doc ?
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Emmanuel FARHI, http://www.ill.fr/tas/people/Farhi.html   \|/ ____ \|/
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