1.1 X-rays

Question 0

What MAKES IMAGES and CT SCANS// DESTROYS TUMOURS at or near the body surface and where is this applied?

Answer 0

X-rays are used to MAKE IMAGES and CT SCANS// DESTROY TUMOURS at or near the body surface and this is applied in hospitals.

Question 1

What are the two main uses of X-rays in hospitals?

Answer 1

The two main uses of X-rays in hospitals are: to MAKE IMAGES and CT SCANS// to DESTROY TUMOURS at or near the body surface.

Question 2

What kind of frequency does an X-ray have?

Answer 2

An X-ray has a high frequency.

Question 3

What kind of wavelength does an X-ray have?

Answer 3

An X-ray has a short wavelength.

Question 4

What has a high frequency?

Answer 4

An X-ray has a high frequency.

Question 5

What has a short wavelength?

Answer 5

An X-ray has a short wavelength.

Question 6

What do X-rays affect in the same way as light?

Answer 6

X-rays affect photographic film in the same way as light.

Question 7

In what way is photographic film affected by X-rays?

Answer 7

Photographic film is affected in the same way as light by X-rays.

Question 8

What are X-rays absorbed by?

Answer 8

X-rays are absorbed by metal and bone.

Question 9

What do metal and bone absorb?

Answer 9

Metal and bone absorb X-rays.

Question 10

What are X-rays transmitted by?

Answer 10

X-rays are transmitted by healthy tissue.

Question 11

What does healthy tissue transmit?

Answer 11

Healthy tissue transmits X-rays.

Question 12

How are X-rays used to check for fractures and dental problems?

Answer 12

X-rays are used to check for fractures and dental problems by forming images of bones.

Question 13

X-rays can be used to form images of bones. How can this be applied in a medical setting?

Answer 13

Images formed by X-rays can be used to check for fractures and dental problems.

Question 14

How is a CCD used?

Answer 14

A CCD can be used to form electronic images of X-rays.

Question 15

What is used to form electronic images of X-rays?

Answer 15

A CCD can be used to form electronic images of X-rays.

Question 16

How can CT scanners be used?

Answer 16

CT scanners use X-rays to form digital images of a cross section through the body.

Question 17

What can be used to form a digital image of a cross section through the body and how?

Answer 17

A CT scanner uses X-rays to form a digital image of a cross sections through the body.

Question 18

How can body organs made of soft issue (e.g intestines) be seen on an X-ray image?

Answer 18

Body organs made of soft tissue (e.g intestines), can be seen on an X-ray image by filling the area with a contrast medium, which absorbs X-rays.

Question 19

How can a contrast medium that absorbs X-rays be used in medicine?

Answer 19

A contrast medium that absorbs X-rays can be used to fill the area of a body organ made of soft tissue (e.g intestines), so they can be seen on an X-ray image.

Question 20

What are the two main dangers of using X-rays?

Answer 20

The two main dangers of using X-rays are: IONISATION// they can DAMAGE LIVING TISSUE when passing through it.

Question 21

What is the relevance of these two points with regards to X-rays: X-rays cause IONISATION// can DAMAGE LIVING TISSUE when passing through it?

Answer 21

These two points, X-rays can cause IONISATION// they can DAMAGE LIVING TISSUE when passing through it are the two main dangers of using X-rays.

Question 22

Which two precautions are commonly used by people working with X-rays?

Answer 22

Two precautions commonly used by people working around X-rays are: wearing FILM BADGES// using LEAD SCREENS to shield themselves from X-rays.

Question 23

How are these two things used: FILM BADGES// LEAD SCREENS?

Answer 23

These two things, FILM BADGES// LEAD SCREENS can be used to shield workers from harmful X-rays.

Question 24

Which illness can X-rays both cause and treat?

Answer 24

X-rays can be used to treat cancer, but can also cause cancer.