chapter 1 Flashcards
When and by who were the x-rays discovered?
William Roentgen; November 8, 1895
When and by who were natural radioactivity discovered?
Antoine Henry Becquerel; 1896
What helped reduce patient exposure for fluoroscopy in 1948?
image intensifier tube
What was developed that helped digital imaging become posssible?
PACS system and CR imaging
DR imaging had to wait for which two technological developments to occur?
sufficient computer power and miniaturization technology
When Roentgen accidentally discovered xrays, he was investigating the properties of ____ rays
cathode
What are the 3 types of radiation discovered by Becquerel?
alpha, beta, gamma
Who developed the fluoroscope?
Thomas Edison, 1896
Anything that transfers energy through space from one point to another
radiation
The 3 broad categories of radiation in which they can be carried
particles, mechanical waves, and electromagnetic waves
What kind of energy are electromagnetic waves?
potential energy
the standard of practice for radiographers is to use…
good common sense, sound judgement, logical consistency, and objective knowledge
the main advantage of digital imaging was…
postprocessing
some types of radiation are capable of ionizing atoms which can eject electrons from the atoms which is harmful because it can lead to…
chemical changes
all of the physical, chemical, and biological changes that can be caused by xrays are due to their ability to ____ atoms of any material
ionize
