EN Physics: Laboratory Experiments

Page 273

13 X-ray Physics 13.2 Radiography

Radiographic examination of objects

P2540020

Radiography of a digital alarm clock.

Principle

XR 4.0 expert unit

An X-ray tube produces X-rays that cause a fluorescent screen to emit light. Objects that are located between the X-ray source and the fluorescent screen will be irradiated so that their inner structure becomes visible. If one varies the anode current and voltage, the change in intensity can be observed in a qualitative manner on the fluorescent screen. Tasks 1. X-ray an object and observe the result on the fluorescent screen. 2. Vary the anode current and voltage and observe the result on the fluorescent screen. What you can learn about ▪ ▪ ▪ ▪

X-ray tube absorption of X-rays radiography fluorescence

Function and Applications

Main articles XR 4.0 expert unit XR 4.0 X-ray plug-in unit W tube XR 4.0 X-ray fluorescent screen XR 4.0 X-ray optical bench Slide mount for optical bench, h = 30 mm Table with stem

09057-99 09057-80 09057-26 09057-18 08286-01 09824-00

1 1 1 1 2 1

School/full-protection device with X-ray tube quick-change technology for fluoroscopy and X-ray imaging, ionisation and dosimetry experiments, Laue and Debye-Scherrer images, X-ray spectroscopy, Bragg reflection, bremsspectrum/characteristic lines of various different anode materials, Moseley's law, determination of Planck's constant and Rydberg constant, Duane Hunt's law, material-thickness- and energy-dependent absorption, K and Ledges, contrast medium experiments, Compton scattering, and Xray diffractometry. 09057-99

PHYWE Systeme GmbH & Co. KG · www.phywe.com 271


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