Coolidge xray tube


Autor:
Daniel Frost Comstock
źródło:
Wymiary:
1076 x 412 Pixel (118317 Bytes)
Opis:
Photo of a Coolidge x-ray tube, from the early 1900s. The cathode is on the left, heated by a separate current passing through a filament, which releases electrons into the tube. The anode target is on the right. A high voltage of several thousand volts applied between the cathode and anode accelerates the electrons into a beam which strikes the anode, generating x-rays. The surface of the anode is angled so the x-rays are emitted in a downward direction, through the side of the tube. Alterations: rotated image 90° clockwise, cropped out frame
Licencja:
Public domain
Komentarz do licencji:
Public domain - published in USA before 1923

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