1.1 X-rays Flashcards
What MAKES IMAGES and CT SCANS// DESTROYS TUMOURS at or near the body surface and where is this applied?
X-rays are used to MAKE IMAGES and CT SCANS// DESTROY TUMOURS at or near the body surface and this is applied in hospitals.
What are the two main uses of X-rays in hospitals?
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.
What kind of frequency does an X-ray have?
An X-ray has a high frequency.
What kind of wavelength does an X-ray have?
An X-ray has a short wavelength.
What has a high frequency?
An X-ray has a high frequency.
What has a short wavelength?
An X-ray has a short wavelength.
What do X-rays affect in the same way as light?
X-rays affect photographic film in the same way as light.
In what way is photographic film affected by X-rays?
Photographic film is affected in the same way as light by X-rays.
What are X-rays absorbed by?
X-rays are absorbed by metal and bone.
What do metal and bone absorb?
Metal and bone absorb X-rays.
What are X-rays transmitted by?
X-rays are transmitted by healthy tissue.
What does healthy tissue transmit?
Healthy tissue transmits X-rays.
How are X-rays used to check for fractures and dental problems?
X-rays are used to check for fractures and dental problems by forming images of bones.
X-rays can be used to form images of bones. How can this be applied in a medical setting?
Images formed by X-rays can be used to check for fractures and dental problems.
How is a CCD used?
A CCD can be used to form electronic images of X-rays.
What is used to form electronic images of X-rays?
A CCD can be used to form electronic images of X-rays.
How can CT scanners be used?
CT scanners use X-rays to form digital images of a cross section through the body.
What can be used to form a digital image of a cross section through the body and how?
A CT scanner uses X-rays to form a digital image of a cross sections through the body.
How can body organs made of soft issue (e.g intestines) be seen on an X-ray image?
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.
How can a contrast medium that absorbs X-rays be used in medicine?
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.
What are the two main dangers of using X-rays?
The two main dangers of using X-rays are: IONISATION// they can DAMAGE LIVING TISSUE when passing through it.
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?
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.
Which two precautions are commonly used by people working with X-rays?
Two precautions commonly used by people working around X-rays are: wearing FILM BADGES// using LEAD SCREENS to shield themselves from X-rays.
How are these two things used: FILM BADGES// LEAD SCREENS?
These two things, FILM BADGES// LEAD SCREENS can be used to shield workers from harmful X-rays.
Which illness can X-rays both cause and treat?
X-rays can be used to treat cancer, but can also cause cancer.
