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 X-ray diffractometry.