chapter 1 practice Flashcards
define acute radiodermatitis
radiation burns
define cathode ray tube
a partial vacuum tube that produces an electron stream
define derived quantities
velocity, acceleration, force, momentum, work and power
define fluoroscope
a device that allows dynamic x-ray examination using x-rays and a fluorescent screen
define fundamental quantities
mass, length, and time
define ionizing radiation
radiation with sufficient energy to ionize atoms
define mobile equipment
a unit on wheels that can be taken to the patient’s bedside, emergency department, or wherever it may be needed
define permanently installed equipment
units that are fixed in place in a particular room specifically designed for the purpose and are not intended to be mobile
define special radiologic quantities
dose, dose equivalent, exposure, and radioactivity
when was Dr. Roentgen born?
March 27, 1845
what did the x in “x-light” represent?
x represented the unknown
which of the following is the discovery of x-rays?
a. November 5, 1885
b. November 5, 1895
c. November 8, 1885
d. November 8, 1895
d. November 8, 1895
what body part did Roentgen photograph of his wife using the new x-light? What’s the time period of the photograph?
He photographed his wife’s hand. The photograph was made on December 22, 1895
During Roentgen’s experiment, what chemical was the cardboard painted with?
barium platinocyanide
What did Roentgen write after he completed his investigation?
the first three communications (informal papers)
Why did a lot of people suffer from acute radiodermatitis?
At the time, photographs had an exposure time of 20-30 minutes to several hours. This led to a large exposure of radiation to the person capturing a photograph.
Why did a lot of people suffer from electrocution?
Because the equipment was not grounded, enclosed, or shieled, electrocution would occur to the operator
Instead of medicine, what were x-rays used for?
X-rays were used for entertainment and marketing purposes such as skincare, shoe fitting, golf balls, etc.
Why did Thomas Edison discontinued his investigation in x-rays?
He suffered radiation burns to his face and an injury to his left eye.
Who was Clarence Dally and how did x-rays impact him?
Clarence Dally was Edison’s assistant.
Since he decided to continue with the investigation on x-rays, he suffered severe radiation burns and amputations. From all the agonizing pain, he died in 1904.
How were technologist identified?
amputations and gloves hands
define mass
quantity of matter contained in an object. it is anything that occupies space, has shape or form, and has mass
define pound
measure of gravitational force exerted on a body, also known as weight
define velocity
distance traveled. measure of speed
