Immagini

DESCRIPTION

Exhibit 530 is a cathode ray tube similar to exhibit 529 but with two arms at its end. One arm contains an interchangeable X-ray target and the other contains a phosphor detector of X-rays or electrons. Electrons are emitted from the concave cathode heated by the current supplied through the standard E27 base and accelerated toward the anode where the high voltage is supplied through a terminal near the end of the main tube and ahead of the two arms. The anode serves also as a collimator having a hole in its center. This thin electron beam can be deviated by an external magnetic field onto the tungsten (or other) target located in one arm of the tube. The resulting X-rays can then be observed at the end of the other arm. By inverting the magnetic field, one can reveal directly the electrons instead of the x_rays. If the tube has a low pressure filling with hydrogen, the electron paths can be made visible through the luminous rays resulting from the excitation of the hydrogen atoms. This tube can thus be used to verify the Lorentz force on moving charged particles. and the production of X-rays from different materials.  ^[1].

Dati Catalografici