General X-ray Machine Operator Exam
Guide
15% rule - ANS-states that converting the kilovoltage height by using 15% could have the same
impact on radiographic density as doubling the mAs or lowering the mAs via 50%
absorption - ANS-the method of shifting x-ray strength to the atoms of the material via which the
x-ray beam passes
delivered filtration - ANS-any filtration executed by way of additives lying past the housing port
AEC Automatic Exposure Control - ANS-A tool that measures the quantity of radiation
accomplishing the photo receptor and robotically terminates the exposure whilst the image
receptor has acquired the specified radiation intensity
The unmarried function is to eliminate the want for the radiographer to set an publicity time
ALARA - ANS-as low as resonably attainable
analog photo - ANS-Radiographic picture produced by means of traditional film
Analog to digital converter (ADC) - ANS-data despatched to computer for processing
Angle (tilt, roll) - ANS-Permits angulation of the tube alongside the longitudinal axis of the desk
anode - ANS-a definitely charged electrode through which electrons go away an electrical
device. It conducts power and radiates warmness and includes the goal.
Anode heel effect - ANS-Density is greater closer to the cathode aspect of the tube, and less
closer to the anode facet.
(thicker frame part towards cathode)
anode target - ANS-region of the anode struck by way of the electrons from the cathode
aperture diaphragm - ANS-It is a flat sheet of lead that has a hollow reduce in the middle and
connected to the x-ray tube port. The commencing may be made in any length or shape;
maximum are square, rectangular, or spherical and is the handiest of all beam-restricting
gadgets
, are anode interactions efficient? - ANS-no, ninety nine% are warmth and 1% is x-ray
artifact - ANS-portion of an photograph or tracing that doesn't accurately constitute the situation
of the photo or measurement being recorded
attenuation - ANS-the absorption of x-ray beam via matter
heritage radiation - ANS-comes from the solar and other planetary bodies and obviously
occurring radioactive substances present in the world (uranium and radium)
backup timer - ANS-Is the time the Electronic timer is about in case the AEC fails to terminate
publicity
beam limit - ANS-maintains the total amt of tissue irradiation to a minimum and substantially
improves image great and reduces pt dose
bremsstralung x-rays - ANS-happens while incident electrons skip near the positively charged
nucleus which ends up in the incident electron braking or slowing down, every deflection causes
a photon of radiation
makes up most of the primary beam
cathode - ANS-a negatively charged electrode that is the supply of electrons in an electrical
device
ceiling guide machine - ANS-maximum common, has 2 sets of rails that allow for lateral and
longitudinal motion, lock and raise and lower to reap the ideal distances
valuable ray - ANS-A line within the middle of the X-ray beam and perpendicular to the lengthy
axis of the X-ray tube
chemical fog - ANS-Type of fog that outcomes while the film processing chemical are too hot or
too strong.
Collimator definition - ANS-A container-like tool connected underneath the tube housing that
permits the constrained operator to vary the dimensions of the radiation discipline (a variable
aperature)
compensating filter - ANS-used for shaping the xray intensity over the beam location so
radiation that reaches th IR is more uniform and produces more unifom optical density
compton impact - ANS-An attenuation (absorption) manner for x- and gamma radiation in which
a photon interacts with an orbital electron or an atom to shape a displaced electron and a
scattered photon (x-ray) of reduced strength.
Reasons x-rays to be scattered in all directions
Guide
15% rule - ANS-states that converting the kilovoltage height by using 15% could have the same
impact on radiographic density as doubling the mAs or lowering the mAs via 50%
absorption - ANS-the method of shifting x-ray strength to the atoms of the material via which the
x-ray beam passes
delivered filtration - ANS-any filtration executed by way of additives lying past the housing port
AEC Automatic Exposure Control - ANS-A tool that measures the quantity of radiation
accomplishing the photo receptor and robotically terminates the exposure whilst the image
receptor has acquired the specified radiation intensity
The unmarried function is to eliminate the want for the radiographer to set an publicity time
ALARA - ANS-as low as resonably attainable
analog photo - ANS-Radiographic picture produced by means of traditional film
Analog to digital converter (ADC) - ANS-data despatched to computer for processing
Angle (tilt, roll) - ANS-Permits angulation of the tube alongside the longitudinal axis of the desk
anode - ANS-a definitely charged electrode through which electrons go away an electrical
device. It conducts power and radiates warmness and includes the goal.
Anode heel effect - ANS-Density is greater closer to the cathode aspect of the tube, and less
closer to the anode facet.
(thicker frame part towards cathode)
anode target - ANS-region of the anode struck by way of the electrons from the cathode
aperture diaphragm - ANS-It is a flat sheet of lead that has a hollow reduce in the middle and
connected to the x-ray tube port. The commencing may be made in any length or shape;
maximum are square, rectangular, or spherical and is the handiest of all beam-restricting
gadgets
, are anode interactions efficient? - ANS-no, ninety nine% are warmth and 1% is x-ray
artifact - ANS-portion of an photograph or tracing that doesn't accurately constitute the situation
of the photo or measurement being recorded
attenuation - ANS-the absorption of x-ray beam via matter
heritage radiation - ANS-comes from the solar and other planetary bodies and obviously
occurring radioactive substances present in the world (uranium and radium)
backup timer - ANS-Is the time the Electronic timer is about in case the AEC fails to terminate
publicity
beam limit - ANS-maintains the total amt of tissue irradiation to a minimum and substantially
improves image great and reduces pt dose
bremsstralung x-rays - ANS-happens while incident electrons skip near the positively charged
nucleus which ends up in the incident electron braking or slowing down, every deflection causes
a photon of radiation
makes up most of the primary beam
cathode - ANS-a negatively charged electrode that is the supply of electrons in an electrical
device
ceiling guide machine - ANS-maximum common, has 2 sets of rails that allow for lateral and
longitudinal motion, lock and raise and lower to reap the ideal distances
valuable ray - ANS-A line within the middle of the X-ray beam and perpendicular to the lengthy
axis of the X-ray tube
chemical fog - ANS-Type of fog that outcomes while the film processing chemical are too hot or
too strong.
Collimator definition - ANS-A container-like tool connected underneath the tube housing that
permits the constrained operator to vary the dimensions of the radiation discipline (a variable
aperature)
compensating filter - ANS-used for shaping the xray intensity over the beam location so
radiation that reaches th IR is more uniform and produces more unifom optical density
compton impact - ANS-An attenuation (absorption) manner for x- and gamma radiation in which
a photon interacts with an orbital electron or an atom to shape a displaced electron and a
scattered photon (x-ray) of reduced strength.
Reasons x-rays to be scattered in all directions
