[mcstas-users] Component Monochromator-reflect

[Erik B Knudsen]

Dear Thierry,

You could definitely use Single_crystal or, if it is an assembly of 
crystals you want, a Union of single crystals for mosaic crystals. Is 
there a specific geometry you are targeting?

Please note that Single_crystal has effectively 4 ways of modelling 
mosaic, depending on your situation.

cheers
Erik

On 01/06/2021 19:53, Peter Kjær Willendrup wrote:
> Dear Thierry,
> 
> 
>> On 1 Jun 2021, at 18.57, Thierry Bigault <bigault at ill.fr 
>> <mailto:bigault at ill.fr>> wrote:
>>
>> I am trying to make calculations with mosaic crystals. The following 
>> paper states that a new component, called Monochormator-reflect, was 
>> introduced in order to overcome some limitations of Monochromator_curved:
>>
>> L. Alianelli, N. Wilson, K.H. Andersen, M. Sánchez del Rı́o, R. Felici, 
>> A method for detailed simulations of neutron diffraction from 
>> imperfect crystals, Nucl. Instr. Meth A 529 (2004) 231–233.
>>
>> Does anyone know what this became ? Was it included into another more 
>> sophisticated component that can be used to simulate monochromators, 
>> like Single_crystal ?
> 
> I do have a copy of the said component component somewhere, but could 
> not locate it at first glance. I am also sure both Erik and Emmanuel has 
> a copy. I am however also sure that it will not work “out of the box”. :)
> 
> ( The reason that the component never made it into the official McStas 
> release was in a way simple:
>   It relied on an inputfile that was prepared using an IDL 
> procedure-code, which we thought was a very nasty dependency…)
> 
> What specific advanced feature(s) are you looking for? We do have a 
> number of other good alternatives, e.g. Single_crystal or NCrystal.
> 
> 
> Best,
> Peter
> 
> 
> Peter Kjær Willendrup
> Forskningsingeniør, Specialkonsulent
> Næstformand for DTU Fysik LSU
> 
> DTU Physics
> 
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> 
> Technical University of Denmark
> 
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> 
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> 
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-- 
Erik Bergbäck Knudsen, Research Engineer         | DTU | morituri
NEXMAP, DTU Fysik, DK-2800 Kgs. Lyngby, Denmark  |<>-<>|    te
phone: (+45) 2132 6655                           |<>-<>| salutant