Radiology History- Lecture 1

Question 1

Who discovered X-ray radiation by accident in November of 1895?

Answer 1

Wilhelm Conrad Von Roentgen

Question 2

Responsible for generating cathode rays for glass cathode bulbs; also generated a different type of ray with unusual properties (x-ray):

Answer 2

Wilhelm Conrad Von Roentgen

Question 3

Received a noble prize in physics in 1901 for x-ray radiation:

Answer 3

Wilhelm Conrad Von Roentgen

Question 4

A dentist in Braunschweig Germany who produced the first dental radiographs less than two weeks after Roentgen’s announcement of the “x-ray discovery”:

Answer 4

Otto Walkhoff

Question 5

Placed a small glass photographic plate coated with rubber dam in his own mouth, then seated himself for a 25 min exposure:

Answer 5

Otto Walkhoff

Question 6

When is the 125th anniversary for the dental radiograph?

Answer 6

January 12, 1896

Question 7

This image shows a dental radiograph take by ____ on February 1st 1896.

What the exposure times (maxillary & mandibular) for this photo?

Answer 7

Dr. Walter Konig

Maxillary: 9 min
Mandibular: 5 min

Question 8

• Invented the 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 U.S.

Answer 8

Dr. C. Edmund Kells

Question 9

Who is the first person to expose a dental radiograph in the U.S?

Answer 9

Dr. C. Edmund Kells

Question 10

• Engineer at G.E. in New York
• modified the X-ray tube for portability for WWI MASH units in France
• became the prototype for the enclosed x-ray tube

Answer 10

William David Coolidge

Question 11

What is significant about the design of the X-ray tube 101 years ago to today?

Answer 11

minimal design change

Question 12

The “alarming” hand-held dental x-ray unit was invented in:

Answer 12

2005

Question 13

The discovery of x-radiation 1895, Germany:

Answer 13

Wilhelm Conrad Von Roentgen

Question 14

Produced the first dental radiographs less than two weeks after Roentgens announcement of x-ray discovery:

Answer 14

Otto Von Walkhoff

Question 15

Invented first surgical aspirator for dental and medical surgery:

Answer 15

Edmund Kells

Question 16

First to expose a dental radiograph in the U.S.

Answer 16

Edmund Kells

Question 17

Modified the X-ray tube for portability for WWI MASH units in France:

Answer 17

David Coolidge

Question 18

Became the prototype for the enclosed X-ray tube. There has been minimal design changes in 98 years:

Answer 18

David Coolidge