History of Radiation Flashcards
Define radiology
A medical science that deals with the study and use of radiation for diagnosis and therapy
Was the history of radiation invented or discovered?
Discovered
Many university physics laboratories were investigating the conduction of ____ rays, or electrons, in a tube known as a _____ tube.
Many university physics laboratories were investigating the conduction of CATHODE rays, or electrons, in a tube known as a CROOKES tube.
What is a Crookes tube known as today?
Cathode x-ray tube
Who and on what day was working at Wurzburg University in Germany?
Wilhelm Conrad Roentgen on November 8, 1895
The crookes tube is also called…
A cold tube
What did Roentgen cover the crookes tube with in order to observe and better visualize the effects of the cathode rays in the tube?
Black paper
The crookes tube glowed because…
It generated heat
What are properties of x-rays?
(HE HITT RAPP CCCC)
- Highly Penetrating
- Electrically neutral
- Heterogenous wavelengths
- Invisible
- Travels in straight lines
- Travels at the speed of light
- Release very small amounts of heat upon passing through matter
- Affects photographic film
- Produces chemical and biological changes
- Produces secondary and scatter radiation
- Can ionize matter
- Causes certain chemical to fluoresce
- Cannot be focus by by a lens
- Can be regulated, heterogenous
What properties of x-rays are important to the field of radiology?
- Penetrates matter
- Affects photographic film/IR
- Causes chemicals to fluoresce
- Can be regulated
Which properties of x-rays pose a negative to our field?
- Produces biological effects
- Produces scatter radiation
What happened to Roentgen in 1901?
He won the first Nobel Prize for physics
What was barium platinocyanide used for? Who identified the use for it?
To help produce images —Roentgen
What was the name of Roentgen’s original paper and when was it published?
“On a New Kind of Rays” — December 28th, 1895
What was Roentgen’s first radiographs?
His wife’s hand, a set of weights, a compass, and a piece of metal
