Introduction To Radiographic
Equipment Chapter 2 (Answered)
Updated Fall 2024/2025. 64 Q&A.
The x-ray room has an area that protects the limited operator from scatter radiation &
is called the:
control booth
The mechanism on the x-ray tube crane that provides "stops" in a specific location is
the:
Detent
The absorption of x-rays by matter is called:
attenuation
The image receptor (IR) system may consist of the following:
Cassette and phosphor plate
A line that is perpendicular to the long axis of the x-ray tube and is the center of the
x-ray beam is called the:
central ray
The device that protects the IR from being fogged by scatter radiation is called a:
Grid or Bucky
The device that allows the limited operator to vary the size of the radiation field is
called the :
collimator
The purpose of a safety check performed before making an exposure is to:
protect the patient from unnecessary exposure
A radiation hazard exists in the x-ray room:
throughout the room during an exposure
A type of filmless x-ray system that produces digital images is called:
computed radiography (CR)
Digital images produced using the CR systems use an _________ to process the
image.
image reader device
The most frequent adverse incident that occurs in a radiology department is:
, falling
How can you determine the location of the central ray?
Turn on the collimator light. The crosshairs in the center of the illuminated radiation
field indicates the location of the center ray.
What is the location of remnant radiation?
Between the patient and the film on the side of the patient opposite that of the x-ray
tube.
What is meant by attenuation?
Absorption of the x-rays beam in matter, usually the human body
What component of the x-ray machine is located in the control booth?
the control console (located in the control booth), and the transformer cabinet.
What should you do before attempting to move the x-ray equipment?
Release appropriate locks
Where would you look to find a collimator?
Is a boxlike device attached under the tube housing.
How might you determine the size of the radiation field without actually measuring it?
Collimator scale.
List the four steps in a pre-exposure safety check.
1. The x-ray room door is closed 2. No non-essential persons are in the x-ray room
3. All persons in the control booth are completely behind the lead barrier 4. No image
receptors are in the rooms except the one in use
How soon is it safe to re-enter the x-ray room after an exposure?
Immediately x-rays travel at the speed of light and do not linger in the room. They
are only present during an exposure
Define the difference between primary and remnant radiation.
Primary: the x-ray beam that leaves the tube and is unattenuated, except by air.
Remnant: what remains of the primary beam after it has been attenuated by matter
(the patient).
What are the common sizes of CR plates?
8x10, 10x12,14x14, 14x17, 14x36
Describe the Trendelenburg position.
The position of the patient in which the head is lowered at least 15 degrees.
Describe the latent image.
Equipment Chapter 2 (Answered)
Updated Fall 2024/2025. 64 Q&A.
The x-ray room has an area that protects the limited operator from scatter radiation &
is called the:
control booth
The mechanism on the x-ray tube crane that provides "stops" in a specific location is
the:
Detent
The absorption of x-rays by matter is called:
attenuation
The image receptor (IR) system may consist of the following:
Cassette and phosphor plate
A line that is perpendicular to the long axis of the x-ray tube and is the center of the
x-ray beam is called the:
central ray
The device that protects the IR from being fogged by scatter radiation is called a:
Grid or Bucky
The device that allows the limited operator to vary the size of the radiation field is
called the :
collimator
The purpose of a safety check performed before making an exposure is to:
protect the patient from unnecessary exposure
A radiation hazard exists in the x-ray room:
throughout the room during an exposure
A type of filmless x-ray system that produces digital images is called:
computed radiography (CR)
Digital images produced using the CR systems use an _________ to process the
image.
image reader device
The most frequent adverse incident that occurs in a radiology department is:
, falling
How can you determine the location of the central ray?
Turn on the collimator light. The crosshairs in the center of the illuminated radiation
field indicates the location of the center ray.
What is the location of remnant radiation?
Between the patient and the film on the side of the patient opposite that of the x-ray
tube.
What is meant by attenuation?
Absorption of the x-rays beam in matter, usually the human body
What component of the x-ray machine is located in the control booth?
the control console (located in the control booth), and the transformer cabinet.
What should you do before attempting to move the x-ray equipment?
Release appropriate locks
Where would you look to find a collimator?
Is a boxlike device attached under the tube housing.
How might you determine the size of the radiation field without actually measuring it?
Collimator scale.
List the four steps in a pre-exposure safety check.
1. The x-ray room door is closed 2. No non-essential persons are in the x-ray room
3. All persons in the control booth are completely behind the lead barrier 4. No image
receptors are in the rooms except the one in use
How soon is it safe to re-enter the x-ray room after an exposure?
Immediately x-rays travel at the speed of light and do not linger in the room. They
are only present during an exposure
Define the difference between primary and remnant radiation.
Primary: the x-ray beam that leaves the tube and is unattenuated, except by air.
Remnant: what remains of the primary beam after it has been attenuated by matter
(the patient).
What are the common sizes of CR plates?
8x10, 10x12,14x14, 14x17, 14x36
Describe the Trendelenburg position.
The position of the patient in which the head is lowered at least 15 degrees.
Describe the latent image.
