Radiology chapter 2 Radiation physics
Questions and Answers
Which term describes two or more atoms that are joined by chemical bonds Molecule
Radiation defined is the emission and propargation of energy through space or substance
in the form of waves or particles.
Which term describes the process by which unstable atoms undergo spontaneous disintegration
in an effort to attain a more balanced nuclear state Radioactivity
Which is not a type of particulate radiation nucleons
Which is not a type of electromagnetic radiation electrons
Which statement is incorrect Wave length in the distant between waves
Velocity is the speed of the wave
Frequency is the number of ----- ----- that pass a given point in a certain amount of time
wavelengths
Frequency and wavelengths are inversely related
x-rays are invisible
no mass or weight x-rays
, x-rays have no charge
xrays travel at the speed of light
X-rays travels in waves and have ----- wavelengths with a high frequency short
X-rays travel in ----- lines and can be deflected or scattered straight
x-rays can cause ---- ----- in living cells biologic changes
Which regulates the flow of electrical current to the filiment of the xray tube High voltage
circut
Which is used to increase the voltage in the high voltage circuit Step up transformer
which does not occur when the high voltage circuit is activated The unit produces an
audible and visible signal
Which is the location where xrays are produced postive anode
Which is the location where thermionic emission occurs neg. cathnode
Which accounts for 70 % of all the x ray energy produced at the anode general radiation
Which occurs only at 70 kv or higer and accounts for a very small part of the xrays produced in
the dental xray machine characteristic radiation
Questions and Answers
Which term describes two or more atoms that are joined by chemical bonds Molecule
Radiation defined is the emission and propargation of energy through space or substance
in the form of waves or particles.
Which term describes the process by which unstable atoms undergo spontaneous disintegration
in an effort to attain a more balanced nuclear state Radioactivity
Which is not a type of particulate radiation nucleons
Which is not a type of electromagnetic radiation electrons
Which statement is incorrect Wave length in the distant between waves
Velocity is the speed of the wave
Frequency is the number of ----- ----- that pass a given point in a certain amount of time
wavelengths
Frequency and wavelengths are inversely related
x-rays are invisible
no mass or weight x-rays
, x-rays have no charge
xrays travel at the speed of light
X-rays travels in waves and have ----- wavelengths with a high frequency short
X-rays travel in ----- lines and can be deflected or scattered straight
x-rays can cause ---- ----- in living cells biologic changes
Which regulates the flow of electrical current to the filiment of the xray tube High voltage
circut
Which is used to increase the voltage in the high voltage circuit Step up transformer
which does not occur when the high voltage circuit is activated The unit produces an
audible and visible signal
Which is the location where xrays are produced postive anode
Which is the location where thermionic emission occurs neg. cathnode
Which accounts for 70 % of all the x ray energy produced at the anode general radiation
Which occurs only at 70 kv or higer and accounts for a very small part of the xrays produced in
the dental xray machine characteristic radiation
