SIEMENS HR55/1 Mikrofokus intraoral Röntgenröhre mit Stabanode
Microfocus Intraoral Rod Anode X-ray Tube
Tube à rayons X intra-oral microfocus avec anode en tige
Longueur • Length • Länge : 24 cm • 9" 1/2
The anode portion of the tube is a long rod-shaped cylinder and operates at ground electrical potential. The X-rays are emitted from a region near the end of the cylinder and are projected with cylindrical symmetry in all directions except forward and backward along the cylinder axis. The actual tube target is a tungsten-tipped cone with a focal spot that is claimed to have dimensions on the order of .1 mm.
Electrons emitted at the cathode are attracted to the anode and focused by electromagnets. The target is shielded except for a window containting filtration for the useful beam.
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