Introductory Medical Radiation Science

Question 1 of 19

1

Which of the following is a FALSE statement?

Select one of the following:

Rotating anode tubes are a complete vacuum, whereas earlier Crooke's tubes were a partial vacuum
Rotating anode tubes are stationary
Despite the focal spot size remaining constant, rotating anode tubes increase the area of the anode exposed to the beam

Explanation

Question 2 of 19

1

Fill the blank spaces to complete the text.

FID stands for to

Explanation

Question 3 of 19

1

Fill the blank spaces to complete the text.

FOD stands for to

Explanation

Question 4 of 19

1

Fill the blank spaces to complete the text.

OID stands for to

Explanation

Question 5 of 19

1

What is this formula used for?

Select one of the following:

Magnification Factor
Maximum mAs setting
Collimation threshold

Explanation

Question 6 of 19

1

Label the anatomical parts of the body.

Drag an answer into the correct orange point.

Cranial

Inferior

Caudal

Distal

Proximal

Left

Right

Superior

Medial

Lateral

Explanation

Question 7 of 19

1

Click on each orange point and write the correct answer.

Label the anatomical planes.

Explanation

Question 8 of 19

1

Fill in the following body positions:
❌ standing or sitting
❌ lying down
❌ lying on back
❌ lying facedown
❌ lying on one side
❌ right side touches the image plate
❌ left side touches the image plate

Drag and drop to complete the text.

erect

decubitus

supine

prone

lateral decubitus

right lateral

left lateral

Explanation

Question 9 of 19

1

Label the parts of the x-ray tube.

Drag an answer into the correct orange point.

Anode

Cathode

Window

Anode target

Rotor

Evacuated glass envelope

Housing

Stator coils

Explanation

Question 10 of 19

1

Fill in the blanks with the appropriate terms:
The ❌ disc has a target track made of 90% ❌ and 10% ❌. Tungsten has a high ❌ and high atomic number giving it a high ❌. The addition of rhenium produces less ❌.

The anode disk base is made of a ❌ making it ❌ with ❌.

The rotor is made of ❌ giving it a high thermal capacity and ❌.

Drag and drop to complete the text.

anode

tungsten

rhenium

melting point

thermal capacity

roughening

molybdenum graphite alloy

lightweight

good heat dissipation

conductivity

copper and iron

Explanation

Question 11 of 19

1

X-rays are produced by ❌ acceleration of electrons from a ❌ ❌ (3) within a ❌, towards a ❌ on a ❌ (4). This anode ❌ to dissipate heat generated. ❌ are generated through ❌ in the anode and an ❌ (5) is directed towards the ❌.

Drag and drop to complete the text.

high voltage

tungsten filament

negative cathode

vacuum

tungsten target

positive anode

rotates

Photons

atom interaction

x-ray beam

patient

Explanation

Question 12 of 19

1

❌ x-rays occur when an ❌ passes very near the ❌ of an atom and is slowed and deviated from the resulting ❌. In this process, the electron loses ❌ and a ❌ (x-ray) is emitted.

Drag and drop to complete the text.

Bremsstrahlung

electron

nucleus

electromagnetic interaction

energy

photon

Explanation

Question 13 of 19

1

A ❌ x-ray is when a ❌ electron (1) collides with an ❌ electron (2) in a tungsten ❌. Both are ejected from the atom leaving a ❌ in the inner shell. This is filled by an ❌ electron (3) with a loss of energy emitted as an ❌ (4).

Drag and drop to complete the text.

characteristic

high energy

inner shell

atom

vacancy

outer shell

x-ray photon

Explanation

Question 14 of 19

1

Ionising radiation is radiation that has enough enery to free an electron from an atom, creating an ion.

Select one of the following:

True
False

Explanation

Question 15 of 19

1

Select from the dropdown lists to complete the text.

Match the keyword with the correct definition:
( kVp, mA, mAs, time ) measure of the maximum voltage potential across an x-ray tube, responsible for acceleration of the electrons from the cathode to the anode
( mA, kVp, mAs, time ) determines current through filament, a measure of the total number of electrons flowing from cathode to anode
( time, mA, mAs, kVp ) controls duration of electron flow being subjected to the voltage differential, determines duration of bombardment of anode by electrons
( mAs, mA, time, kVp ) product of exposure time and x-ray tube current, becomes the Total Radiation Output

Explanation

Question 16 of 19

1

What is meant by the term resolution in medical imaging?

Select one of the following:

The ability to image two different objects and visually distinguish them from one another
The scale of contrast on an image
The product of kVp and mAs

Explanation

Question 17 of 19

1

A lower spatial frequency (line pairs per millimetre) indicates better spatial resolution.

Select one of the following:

True
False

Explanation

Question 18 of 19

1

Select from the dropdown lists to complete the text.

When an image is produced with ( few, many ) x-rays (i.e. ( low mAs, high mAs )) the quantum mottle will be ( higher, lower ) than if the image was produced with ( many, few ) x-rays (i.e. ( high mAs, low mAs )).

Explanation

Question 19 of 19

1

The following can all be used to reduce scatter radiation: collimation, compression band, grid, air gap technique.

Select one of the following:

True
False

	Created by Emma Cooper about 7 years ago

Quiz on Introductory Medical Radiation Science. Australian medical terminology generally used.

Introductory Medical Radiation Science

Question 1 of 19

Which of the following is a FALSE statement?

Select one of the following:

Explanation

Question 2 of 19

Fill the blank spaces to complete the text.

FID stands for to

Explanation

Question 3 of 19

Fill the blank spaces to complete the text.

FOD stands for to

Explanation

Question 4 of 19

Fill the blank spaces to complete the text.

OID stands for to

Explanation

Question 5 of 19

What is this formula used for?

Select one of the following:

Explanation

Question 6 of 19

Label the anatomical parts of the body.

Drag an answer into the correct orange point.

Explanation

Question 7 of 19

Click on each orange point and write the correct answer.

Label the anatomical planes.

Explanation

Question 8 of 19

Fill in the following body positions: ❌ standing or sitting ❌ lying down ❌ lying on back ❌ lying facedown ❌ lying on one side ❌ right side touches the image plate ❌ left side touches the image plate

Drag and drop to complete the text.

Explanation

Question 9 of 19

Label the parts of the x-ray tube.

Drag an answer into the correct orange point.

Explanation

Question 10 of 19

Drag and drop to complete the text.

Explanation

Question 11 of 19

X-rays are produced by ❌ acceleration of electrons from a ❌ ❌ (3) within a ❌, towards a ❌ on a ❌ (4). This anode ❌ to dissipate heat generated. ❌ are generated through ❌ in the anode and an ❌ (5) is directed towards the ❌.

Drag and drop to complete the text.

Explanation

Question 12 of 19

❌ x-rays occur when an ❌ passes very near the ❌ of an atom and is slowed and deviated from the resulting ❌. In this process, the electron loses ❌ and a ❌ (x-ray) is emitted.

Drag and drop to complete the text.

Explanation

Question 13 of 19

A ❌ x-ray is when a ❌ electron (1) collides with an ❌ electron (2) in a tungsten ❌. Both are ejected from the atom leaving a ❌ in the inner shell. This is filled by an ❌ electron (3) with a loss of energy emitted as an ❌ (4).

Drag and drop to complete the text.

Explanation

Question 14 of 19

Ionising radiation is radiation that has enough enery to free an electron from an atom, creating an ion.

Select one of the following:

Explanation

Question 15 of 19

Select from the dropdown lists to complete the text.

Explanation

Question 16 of 19

What is meant by the term resolution in medical imaging?

Select one of the following:

Explanation

Question 17 of 19

A lower spatial frequency (line pairs per millimetre) indicates better spatial resolution.

Select one of the following:

Explanation

Question 18 of 19

Select from the dropdown lists to complete the text.

When an image is produced with few many( few, many ) x-rays (i.e. low mAs high mAs( low mAs, high mAs )) the quantum mottle will be higher lower( higher, lower ) than if the image was produced with many few( many, few ) x-rays (i.e. high mAs low mAs( high mAs, low mAs )).

Explanation

Question 19 of 19

The following can all be used to reduce scatter radiation: collimation, compression band, grid, air gap technique.

Select one of the following:

Explanation

Fill in the following body positions:
❌ standing or sitting
❌ lying down
❌ lying on back
❌ lying facedown
❌ lying on one side
❌ right side touches the image plate
❌ left side touches the image plate

When an image is produced with ( few, many ) x-rays (i.e. ( low mAs, high mAs )) the quantum mottle will be ( higher, lower ) than if the image was produced with ( many, few ) x-rays (i.e. ( high mAs, low mAs )).