Chapter 1 Introduction to Radiography, Safety, and Student Success Flashcards
Who is credited with the discovery of x-rays and when?
- Wilhelm Conrad Roentgen
- November 9, 1895
Who discovered fluoroscopy and when?
- Thomas Edison
- 1896
- Vitascope (first fluoroscope)
Who was the first known American fatality from radiation exposure?
Clarence Dally
Who discovered radium?
Marie Curie
What does ALARA stand for?
As Low As Reasonably Achievable
What type of tube was used when x-rays were discovered?
Crookes tube
Why was the letter “X” used to name x-rays?
Wilhelm Conrad Roentgen named it “X”-ray since the mathematical symbol for the unknown is “X”
What law describes the relationship between intensity of the beam and distance from the source?
Inverse Square Law
Which of the following are modern day advances that came from x-ray?
SPECT, PET, Ultrasound, Mammography, and CT
What were the early uses of x-ray?
Hair removal, Cocktail parties, Souvenirs, Spiritual connections
What is better for patient protection, collimation, or cropping of the digital image?
Collimation
Radiology students younger than 18
0.1 rem/1 mSv
General public
0.5 rem/5 mSv
Occupational workers
5 rem/50 mSv
Pregnant workers
- 0.5 rem/5 mSv (in 9 month period)
- 0.05 rem/0.5 mSv (in any given month)