Radiation Physics chapter 1
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61 Terms
exposure to the radiographer
Seivert
radiation emitted from the fluoroscopy unit
coulomb/kg
patient absorbed dose
gray
reading on a geiger counter
becquerel
total number of photons produced
mAs
penetrability of the x-ray beam
kVp
primary controller of beam quantity
mA
primary controller of beam quality
kVp
amount of time ionizing radiation is produced
seconds
kilovoltage potential
kVp
milliamperage
mA
mill amperage x seconds
mAs
which two of the following are the primary exposure factors
kVp, mAs
who discovered x-rays
Wilhelm Roentgen
when were x-rays discovered
November 8th 1895
radiation with sufficient energy to ionize atoms is known as
ionizing radiation
mass
fundamental
length
fundamental
time
fundamental
velocity
derived
acceleration
derived
force
derived
momentum
derived
work
derived
power
derived
dose
radiologic
dose equivalent
radiologic
exposure
radiologic
radioactivity
radiologic
cardinal principles for minimizing radiation dose
increase distance, increase shielding, decrease time
unit that is fixed in place in a particular room
fixed unit
equipment that is used to select the kVp and mAs applied to produce x-rays
control panel
anode
positive side
cathode
negative side
restricts the x-ray beam to the area of interest
collimator
the tray device that locks the IR in place under the table top
Bucky
the vertical Bucky is most ostentatious used to preform what kind of x-rays
chest x-rays
first x-ray was of
his wife's hand
who invented mobile x-ray unit in 1914
marie curie
inertia
the property of an object with mass that resists a change in its state of motion
energy
the ability to do work
potential energy
energy in a stored state
kinetic energy
energy being expended
forms of energy
electromagnetic, electrical, chemical, and thermal
radiation absorbed dose (rad)
used to quantify the biological effects of radiation on humans and animals
radiation equivalent man (rem)
used to quantify occupational exposure or dose equivalent
Roentgen (R)
used to quantify radiation intensity
curie(Ci)
is used to quantify radioactivity
the tube stand or tube mount
gives mobility to the x-ray tube (floor, floor-ceiling, floor-wall, and ceiling mounts)
table
needed to easily position patients for examination, raise and lower, four-way floating top with electromagnetic locks, fluoroscopy
control pannel
used by the radiographer to select the kilovolatge and milliamperage that is applied to the x-ray tube to produce x-rays. allows radiographer to fine-tune exposure parameters.
ALARA
as low as reasonably achievable
energy is defined as
the ability to do work
which of the following is an example of potential energy
an x-ray imaging system
radiation is
energy transferred
the coulomb/kg relates to which of the following
ions produced in the air
roentgen originally identified x-rays as which of the following
x-light
coloration does which of the following
reduce patient dose
one of the cardinal principles of radiation protection states that the technologist should minimize what
time
what will reduce personnel exposure the most
use of protective barriers for rad techs
a radiation monitoring report would express a radiologic technologist's dose equivalent in which
sievert