User and Programmers Guide to the Neutron Ray-Tracing Package McStas, version 3.10.0

10  Instrument examples

In this section, we present a few typical instruments from the McStas example library. We then give a longer description of three selected worked examples: a simple sample test instrument (10.2), the historical Risø triple-axis spectrometer TAS1 (10.3), and the ISIS time-of-flight spectrometer PRISMA (10.4).

These instrument files are included in the McStas distribution in the examples/ directory (mcstas-comps/examples in the source tree), organised by facility/category. Any of them can be loaded from mcgui’s New from Template menu (known as “Neutron site” in older McStas releases, see section 4.2): selecting one copies the instrument into your working directory, ready to edit, run, or trace.

The list below is a curated tour, not an exhaustive catalogue – new example instruments are added continuously as facilities contribute instrument descriptions. Use mcdoc (section 4.5.8) or browse the examples/ directory directly for the full, current list.

10.1 A quick tour of instrument examples
10.1.1 Templates
10.1.2 Risoe
10.1.3 ISIS
10.1.4 ILL
10.1.5 ESS
10.1.6 Union_demos, Union_sample_environments, Union_validation
10.1.7 NCrystal
10.1.8 Tests_* categories
10.1.9 Other facility categories
10.2 A test instrument for the component V_sample
10.2.1 Scattering from the V-sample test instrument
10.3 The triple axis spectrometer TAS1
10.3.1 Simulated and measured resolution of TAS1
10.4 The time-of-flight spectrometer PRISMA
10.4.1 Simple spectra from the PRISMA instrument