Name

Unit

Description

Default

zwidth

m

Width of each crystal without bending.

0.2

yheight

m

Height of each crystal without bending.

0.1

xthickness

m

Thickness of each crystal without bending.

0.0005

radius_x

m

Radius of the circle the monochromator bends on in the plane. Can be negative.

2

radius_y

m

Radius of the (very large) circle the monochromator bends on as a side effect of the horizontal bending. The code assumes that it is so small that it does not affect the points of intersection appreciatively of the crystal.

0

plane_of_reflection

"Si\(^{400}\)"

The plane of reflection from the material. The list of possible reflections can be seen in the source code.

"Si400"

angle_to_cut_horizontal

degrees

Angle between cut and normal of crystal slab, horizontally

0

mosaicity

arcmin

Gaussian mosaicity of the crystal. Always the horizontal mosaicity

30

mosaic_anisotropy

1

Anisotropy of the mosaicity, changes vertical mosaicity to be mosaic_anisotropy*mosaicity

1

n_crystals

#

Number of crystals in your array.

1

domainthickness

μm

Thickness of the crystal domains.

10

temperature

K

Temperature of the monochromator in Kelvin.

300

optimize

Flag to tell if the component should optimize for reflections or not.

0

x_pos

vector

x-Position of each crystal

NULL

y_pos

vector

y-Position of each crystal

NULL

z_pos

vector

z-Position of each crystal

NULL

x_rot

vector

Rotation around x-axis for each crystal

NULL

y_rot

vector

Rotation around y-axis for each crystal

NULL

z_rot

vector

Rotation around z-axis for each crystal NOTE: Rotations happen around x, then y, then z.

NULL

n_reflections

The maximum number of reflections a neutron can undergo in the crystal array.

100

verbose

Verbosity of the monochromator. Used for debugging.

0

draw_as_rectangles

Draw the monochromators as boxes. DOES NOT WORK WHEN USING _rot parameters.

0