Name

Unit

Description

Default

crystal_fn

s

Path to a file (.laz) containing crystallographic and physical information

0

fcoef_fn

s

Path to a text file containing the Fourier coefficients of the ODF. It must have five columns: l m n Real(Clmn) Imag(Clmn)

0

lmax_user

1

Cut-off for the Fourier series. If negative, the program uses all the coefficients provided in the file fcoef_fn

-1

barns

1

Flag to indicate if |F|^2 from ’crystal_fn’ is in barns or fm^2. barns=1 for laz and isotropic constant elastic scattering (reflections=NULL), barns=0 for lau type files

0

order

1

Limit scattering to this order

0

interact_fraction

1

How large a part of the scattering events should use this process 0-1 (sum of all processes in material = 1)

-1

packing_factor

1

How dense is the material compared to optimal 0-1

1

maxNeutronSaved

1

Maximum number of neutron cross sections saved for reusing

1

init

string

Deprecated and unused. Accepted so that instruments written for McStas/McXtrace 3.8.7 and earlier, which name the Union_init component here, still compile.

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