Equipo de rayos X (115 V, 50/60 Hz)

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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. Anode voltage: 20/30 kV, switchable and electronically stabilized Emission current: 0 to 80 μA, continuously adjustable and electronically stabilized Cathode heating: 4 V, 1 A Focal spot: 5x1 mm2 Anode material: Cu Lead-glass collimator: radiation emission aperture with 5-mm dia. 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’s angle: 5 arc minutes Timer: 0 to 55 minutes, continuously adjustable Power consumption: 100 VA Dimensions: X-Ray apparatus: approx. 250 mm x 370 mm dia. X-Ray tube: approx. 100 mm x 32 mm dia. Weight: approx. 9 kg

Artículo No.: 1000660 [U192001-US]