[mcstas-users] curved guide

Peter Link Peter.Link at frm2.tum.de
Thu Jul 18 13:24:55 CEST 2019

Dear friends,

just to avoid some double developpment: to my knowlegde there are the 
following components or ways to simulate a standard curved neutron guide:

Bender; allows for different reflectivities on top/bottom inside 
outside; can have multiple channels; but behaves geometrically as 
straight guide element (mcdisplay, coordinates of subsequent elements)

Guide_curved; only one reflectivity definition for all sides, 
geometrically correct definition

polygon of Guide_gravity elements; allows for a polygonal approximation 
only, has numerous options

Having a number of truly curved guides in my simulations I would prefer 
to have a component, which has the possibilities as it has Bender or 
Guide_gravity but is a geomentrical correct implementation of truly 
curved guide. If someone has done this or can tell me where I have 
overseen it, I would be grateful.

Bets regards


Dr. Peter Link
Leiter Neutronenoptik
Technische Universität München
Heinz Maier-Leibnitz Zentrum (MLZ)

Lichtenbergstr. 1
85747 Garching

Tel.: +49 (0)89 289 14622
Fax: +49 (0) 89 289 11694

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