X-Ray Apparatus

Description
Experiments

Product Information:_..

The experiment chamber is contained in a closed, radiation-proof housing with a transparent synthetic-glass shield. If the synthetic-glass shield is opened, the high-voltage source for the X-ray tube is deactivated automatically. The high-vacuum X-ray tube with a directly heated tungsten cathode and copper anode is positioned in a borosilicate glass chamber with a thinwalled, concave ray emission window. A lead-glass hood with a collimator causes X-rays to emerge in parallel with the experiment plane and provides a shield against scattered radiation. The horizontal counter-tube goniometer consists of a central sample holder and a swiveling arm. In the form of a slide tray, this arm serves as a mount for the Geiger-Müller tube (U19201), ionization chamber (U19208) as well as experimental devices in slide format or on a 5 cm x 5 cm base plate (for example, from U19205, U19206, U19207). The swiveling arm can be rotated manually independently of the sample holder, or at a fixed mutual angle with a ratio of 2:1, for instance, for experiments involving Bragg’s reflection. The device is equipped with angle and millimeter scales, position markings for experimental devices, as well as radiation-proof bushings for cables and hoses.

Specifications:_..

Anode voltage:	20/30 kV; selectable, electronic stabilisation
Emission current:	0 to 80 μA; continuously adjustable with electronic stabilisation
Cathode heating:	4 V, 1 A
Focal spot:	5 mm x 1 mm
Anode material:	Cu
Lead-glass collimator:	radiation emission aperture with 5-mm Ø
Ray divergence:	better than 10°

Characteristic radiation wavelength:	Cu -Kα: 154 pm, Cu -Kβ: 138 pm

Counter-tube goniometer:	swiveling ranges: 0°, +10° to +130° and -10° to +130° relative to the ray axis
Angular coupling:	independent of the sample holder or with a ratio of 2:1

Measurement accuracy of Bragg angle 2θ:	5 arc minutes

Timer:	0 to 55 minutes, continuously adjustable
Power consumption:	100 VA
Dimensions X-Ray apparatus:	approx. 250 mm x 370 mm Ø
Dimensions X-Ray tube:	approx. 100 mm x 32 mm Ø
Weight:	approx. 9 kg