K and L absorption edges of X-rays / Moseley's law and the

Продукт No: P2541201


Samples of various elements of different atomic numbers are irradiated with X-rays of a known spectral distribution. The energy of the transmitted intensities is analyzed using a monocrystal analyzer. Subsequently, the Rydberg constant and the screening constants are calculated from the energy of the absorption edges.


  1. Record the intensity of the X-rays emitted from the copper anode as a function of the Bragg angle using a LiF monocrystal as analyzer. Determine the K absorption edges of different absorber materials.
  2. Calculate the Rydberg constant and the screening constants from the energy values of  the K absorption edges.
  3. Find the L absorption edges of different absorber materials.
  4. Calculate the Rydberg constant from the energy values of the L absorption edges.

What you can learn about

  • X-ray Bremsstrahlung
  • Characteristic radiation
  • Bragg equation
  • Bohr's atomic model
  • Atomic energy level scheme
  • Moseley's law
  • Rydberg constant
  • Screening constant

Перечень материалов (вы́писка) Продукт Количество
XR 4.0 expert unit, X-ray unit, 35 kV 09057-99 1
XR 4.0 X-ray Plug-in Cu tube 09057-51 1
XR 4.0 X-ray goniometer 09057-10 1
XR 4.0 Software measure X-ray 14414-61 1
Geiger-Mueller counter tube, type B, BNC cable 50 cm 09005-00 1
XR 4.0 X-ray LiF crystal, mounted 09056-05 1
XR 4.0 X-ray Diaphragm tube d = 2 mm 09057-02 1
XR 4.0 X-ray Diaphragm tube d = 5 mm 09057-03 1
Data cable USB, plug type A/B, 1.8 m 14608-00 1
Mortar w. pestle, 70ml, porcelain 32603-00 1
Microspoon, steel 33393-00 1

Литература по данной статье

Название Продукт Язык
Handbuch Lehrerversuche mit Röntgenstrahlung für die XR 4.0 expert unit, TESS expert Physik 01200-01 DEU
TESS expert Physics Handbook X-ray Experiments for XR 4.0 expert unit 01200-02 ENG
XRS 4.0 X-ray Strukturanalyse Erweiterungsset 09140-88

Назад к перечню

Продукт No: P2541201

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