X-Ray Tube
Production date
1898
Country
Germany
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Object detail
Description
The x-ray tubes consist of blown glass tube with anode, anticathode and focus cathode. Electrodes are connected to soldered terminals by wires.
Classification
MEDICINE Medicine x-ray equipment
Maker
Production date
1898
Production place
Measurements
H355 x W410 x D180 mm
Media/Materials description
Glass, metal, wood
Signature/Marks
ORIGINAL MÜLLER NÖNTGENROHR No. / 110095
History and use
This is an extremely rare and fine example of early x-ray technology. The cathode x-ray tube was amongst the first radiological equipment developed.
The cathode, being concave, focuses an electron beam to a small spot on the anticathode, where they are absorbed. This excites atoms in the anticathode, which relax by emitting X-ray photons. X-rays emerge from the side of the tube and since they emanate from a small spot on the anticathode, X-ray images are sharp. The glass becomes discoloured due to radiation damage or metal deposits.
Uploaded to the Web 27 May 2011.
The cathode, being concave, focuses an electron beam to a small spot on the anticathode, where they are absorbed. This excites atoms in the anticathode, which relax by emitting X-ray photons. X-rays emerge from the side of the tube and since they emanate from a small spot on the anticathode, X-ray images are sharp. The glass becomes discoloured due to radiation damage or metal deposits.
Uploaded to the Web 27 May 2011.
Registration number
H22579
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