PPT-Lec . 2

Author : jasiel979 | Published Date : 2024-10-04

Dental radiology History In 1895 Roentgen discovered the first example of ionizing radiation xrays The key to Roentgens discovery was a device called a Crookes tube

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Lec . 2: Transcript

Dental radiology History In 1895 Roentgen discovered the first example of ionizing radiation xrays The key to Roentgens discovery was a device called a Crookes tube which was a glass envelope under high vacuum with a wire element at one end forming the cathode and a heavy copper target at the other end forming the anode When a high voltage was applied to the electrodes electrons formed at the cathode would be pulled towards the anode and strike the copper with very high energy Roentgen discovered that very penetrating radiations were produced from the anode which he called x rays the symbol .

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