Daniel's Bragg law calculator for cubic crystals

The Bragg law

Choose an X-ray wavelength: Å or a characteristic emission line:
Values for emission lines from "International centre for Diffraction Data" - no warranty whatsoever!
This corresponds to an X-ray energy of keV.

Select a material: or choose another cubic lattice constant: Å
For non-cubic crystals, choose Daniel's generalized crystal calculator !

The H =
K = -reflection
L = of a sample with surface orientation n_x =
n_y =
n_z =

Grazing incidence Grazing exit

corresponds to a lattice spacing of D_HKL = Å

Inclination of the diffracting planes w.r.t. the surface: f = degrees.

Asymmetry ratio: g_f= degrees.

Bragg angle, Scattering angle: q = deg 2q = deg

Required angles of incidence and exit: a_i= deg a_f= deg

Wavelength interval to reach this reflection: l_min= Å l_max= Å

Corresponding energy interval: E_min= keV E_max= keV

Resolution element (valid for coplanar measurements only!):

Slit width: mm Distance sample-slit: cm

Total resolution element D a _f= deg |D Q| = A ^-1

Projection on Q_x: D Q_x = A ^-1 = RLU

Projection on Q_z: D Q_z = A ^-1 = RLU

Any comments welcome: email to

Daniel Luebbert

Last modified: Sat Apr 27 15:18:03 CEST 2002

The	`H =` `K =` -reflection `L =` of a sample	with surface orientation	`n_x =` `n_y =` `n_z =`
Grazing incidence Grazing exit
corresponds to a lattice spacing of		D_HKL =	Å
Inclination of the diffracting planes w.r.t. the surface:		f =	degrees.
Asymmetry ratio:		g_f=	degrees.
Bragg angle, Scattering angle:		q = deg	2q = deg
Required angles of incidence and exit:		a_i= deg	a_f= deg
Wavelength interval to reach this reflection:		l_min= Å	l_max= Å
Corresponding energy interval:		E_min= keV	E_max= keV
Resolution element (valid for coplanar measurements only!):
Slit width: mm		Distance sample-slit: cm
Total resolution element	D a _f= deg	\|D Q\| = A ^-1
Projection on Q_x:		D Q_x = A ^-1 = RLU
Projection on Q_z:		D Q_z = A ^-1 = RLU