setTimeout(function(){ window.print(); },500)
 

Technical data


Duane-Hunt displacement law and Planck's "quantum of action"

Article no: P2540905

Principle

X-ray spectra are recorded as a function of the anode voltage. The short wavelength limit of the bremsspectrum is used to determine the agreement with the Duane-Hunt displacement law, and to determine Planck's "quantum of action".

Tasks

  1. Record the intensity of the X-rays emitted by the copper anode at various anode voltages as a function of the Bragg angle using an   LiF monocrystal.
  2. Determine the short wavelength limit (= maximum energy) of the bremsspectrum for the spectra obtained in (1).
  3. Use the results to verify the Duane-Hunt displacement law, and to determine Planck's "quantum of action".

Learning objectives

  • X-ray tube
  • Bremsstrahlung
  • Characteristic X-ray radiation
  • Energy levels
  • Crystal structures
  • Lattice constant
  • Interference
  • Bragg equation

Scope of delivery

XR 4.0 expert unit, 35 kV 09057-99 1
XR 4.0 X-ray goniometer 09057-10 1
XR4 X-ray Plug-in Cu tube 09057-51 1
XR 4.0 X-ray solid state physics upgrade set 09125-88 1

PHYWE Systeme GmbH & Co. KG
Robert-Bosch-Breite 10 – 37079 Göttingen – Germany
www.phywe.com