Name

Unit

Description

Default

radius

m

Outer radius of sample in (x,z) plane

0

thickness

m

Thickness of outer wall

0

zdepth

m

depth of box sample

0

Vc

Unit cell volume [Å^3]

13.827

sigma_abs

barns

Absorbtion cross section pr. unit cell

5.08

sigma_inc

barns

Incoherent scattering cross section pr. unit cell

5.08

radius_i

m

radius-thickness

0

radius_o

m

Same as radius

0

h

m

Same as yheight

0

focus_r

m

Radius of disk containing target. Use 0 for full space

0

pack

1

Packing factor

1

frac

1

MC Probability for scattering the ray; otherwise penetrate

1

f_QE

1

Fraction of quasielastic scattering (rest is elastic)

0

gamma

1

Lorentzian width of quasielastic broadening (HWHM)

0

target_x

0

target_y

m

position of target to focus at

0

target_z

0

focus_xw

m

horiz. dimension of a rectangular area

0

focus_yh

m

vert. dimension of a rectangular area

0

focus_aw

deg

angular width dimension of a rectangular area

0

focus_ah

deg

angular height dimension of a rectangular area

0

xwidth

m

horiz. dimension of sample

0

yheight

m

vert. dimension of sample

0

zthick

m

Same as zdepth

0

rad_sphere

m

Radius for a spherical sample

0

sig_a

barns

Same as sigma_abs

0

sig_i

barns

Same as sigma_inc

0

V0

Same as Vc [Å^3]

0

target_index

1

relative index of component to focus at, e.g. next is +1

0

multiples

1

Apply crude estimate for multiple scattering

1