History Flashcards
1
Q
- Born 1845, Lennep,Germany
- Discovered X-radiation by accident in November 1895
- Nobel Prize in Physics 1901
- Generated cathode rays from glass cathode bulbs
- Also generated a different type of ray with unusual properties –the “X” ray
A
Wilhelm Conrad Von Roentgen
2
Q
a dentist in Braunschweig, Germany, produced the first dental radiographs less than two weeks after Roentgen’s announcement of the “X”-ray discovery
He placed a small glass photographic plate coated with rubber dam in his own mouth, then seated himself for a twenty-five minute exposure
A
Otto Walkhoff
3
Q
became a professor at Giessen, which is where Wilhelm Conrad von Röntgenis buried.
The exposure time was 9 minutes for maxilla
.The exposure time was 5minutes for mandibular.
A
Walter König
4
Q
- Invented first surgical aspirator for dental and medical surgery
- one of the first dentists to hire a female dental assistant
- first to expose a dental radiograph in the United States
A
Dr. C. Edmund Kells
5
Q
When radiographs were first invented, how long were exposure times?
A
20 minutes
6
Q
- Engineer at G.E. in N.Y.
- Modified the x-ray tube for portability for W.W.I. MASH units in France
- Became the prototype for the enclosed x-ray tube
A
William David Coolidge
7
Q
Has there been massive or minimal change in x-ray equipment over the last 100 years?
A
Minimal change
