[mcstas-users] curved guide

[Peter Link]

Hi Andrew and Richard,

this may be exactly, what I'm looking for, thanks a lot!

Cheers

Peter

Am 19.07.2019 um 13:10 schrieb Andrew Jackson:
> Hi Peter
>
> We (Richard Heenan and I) have a component that we use for the LoKI benders (attached) which was a modification of the Pol_bender component to allow us to have it bending downwards/upwards and still have functional gravity. This allows for different reflectivities and is truly curved as well as giving a curved representation in the model.
>
> You can find our LoKI model on bitbucket (link below) if you want to see how we use it.
>
> https://bitbucket.org/essloki/loki-mcstas-master/src/master/
>
> Cheers
> Andrew
> ______________________________________
> Andrew Jackson
> Neutron Instruments Division
> European Spallation Source, Box 176, SE-221 00 Lund, Sweden
>   
> Phone: +46 72 179 2015
>
> On 2019-07-18, 13:28, "mcstas-users on behalf of Peter Link" <mcstas-users-bounces at mcstas.org on behalf of Peter.Link at frm2.tum.de> wrote:
>
>      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
>      
>      Peter
>      
>      
>      --
>      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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>      
>
-- 
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