Simulated
scattering from a hollow-cylinder vanadium
sample.
|
| The plot shows the intensity of scattered neutrons (red is
highest intensity). The sample is at the center of the sphere with the
neutron beam coming from the left. Clearly seen is the shadowing effect
of the sample causing a lower intensity opposite the beam. Also seen is
the effect of the non-symmetric geometry of the sample, causing lower intensity
directly above and to the side of the sample. |
Dear all,
The McStas team finally got access to a mac with the new Apple M1 processor and can now report some experience back:
arch -x86_64 /usr/local/bin/mcstas-3.0-environmentto start a full McStas 3.0 environment in emulation.
#!/usr/bin/arch -x86_64 /bin/bash
Dear all,
Mads Bertelsen and Peter Willendrup gave 3 talks at an MLZ Virtual McStas Seminar last week, arranged by Peter Link MLZ. The videos are available on YouTube:
McStas 3.0 -
GPU support in McStas (Peter Willendrup)
Abstract: The recent McStas 3.0 marks a big step
forward with added support for acceleration on NVIDIA GPUs. The
presentation will highlight the main changes between the McStas 2 and
McStas 3 series and with emphasis on what modifications are needed to
port an existing instrument or component. Finally the presentation
will discuss the areas of McStas 3 that are not yet fully developed
and mature.
McStas Union
components (Mads Bertelsen)
Abstract: The
McStas Union components is a set of components that are used in
together to describe complex parts of neutron instruments where
multiple scattering can be an important aspect. The user will describe
scattering properties in a modular fashion to describe
materials. Complex geometry can be described, allowing hollow regions,
windows and similar with full multiple scattering, which is especially
useful for simulating sample environments. The talk will have a focus
on the practical use of these components, teaching the basic concepts,
as well as showcasing what can be achieved.
McStasScript
(Mads Bertelsen)
Abstract: As python has
become the main language for scientific software, it was decided to
introduce a python interface to McStas called McStasScript. Using
McStasScript a user can describe an instrument, perform simulations
and analyze the data directly from a python script. This simplifies
including McStas in more advanced workflows. The talk will introduce
McStasScript and show how it allows using McStas in a new way that
appeals to both new and experienced users.
Dear all,
We have recently discovered issues with binary-compatibility of some miniconda3-based Python modules in both 2.7 and 3.0 on CentOS. As a consequence, the related packages have been updated on the download page plus in our repo.
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