3B SCIENTIFIC PHYSICS U19171 Manuel D'utilisation page 7

de-Broglie equation:
b)
h = Planck's constant
p = momentum of the electrones
2
p
⋅ =
e U
⋅
2 m
m = electron mas, e = electron charge
Fig. 2 Circuit of the diffraction tube, 0 - 50 V DC focussing voltage (optional)
A TELTRON Product from UK3B Scientific Ltd. • 8 Beaconsfield Road • Weston-super-Mare • Somerset BS23 1YE
Tel 0044 (0)1934 425333 • Fax 0044 (0)1934 425334 • e-mail uk3bs@3bscientific.com
h
λ =
p
h
λ =
⋅ ⋅ ⋅
2 m e U
Fig. 1 Schematic representation to Debye-Scherrer diffraction
Technical amendments are possible
© Copyright 2008 3B Scientific GmbH