Zusammenfassung der Ressource
Physics Revision
- MEDICAL USES
- X-Rays
- Part of the
ELECTROMAGNETIC
SPECTRUM
- Properties make
them USEFUL IN
MEDICINE
- Produce DETAILED IMAGES
- Can be used for DENTAL TREATMENT
- DECAYED teeth ABSORB LESS
- Traditionally 2D
- CT SCANS look from
MORE THAN ONE ANGLE
to produce 3D
Anmerkungen:
- CT SCAN
Computerised Tomography Scan
- Radiography
TREATS
CANCER
- HAZARDOUS
- PRECAUTIONS taken
to protect medical staff
- ELECTROMAGNETIC WAVES
- TRANSFER energy
and are
TRANSVERSE
WAVES
Anmerkungen:
- TRANSVERSE WAVES
Oscillations are perpendicular to the energy transfer.
- OSCILLATIONS
The 'waves' on a radio wave
- Very SHORT wavelength
- Roughly
the
SIZE
OF AN
ATOM
- Cause IONISATION
Anmerkungen:
- IONISATION
The adding or removing of electrons in atoms and molecules
- Can damage DNA cells
- Turn PHOTOGRAPHIC FILM black
- In the same way as visible light
- Absorbed/stopped by METAL and BONE
- TRANSMITTED by HEALTHY TISSUE
Anmerkungen:
- ULTRASOUND
- HIGH FREQUENCY sound waves
- DIAGNOSE DISEASE
- Often used in PRE-NATAL scans
Anmerkungen:
- Medical TREATMENT of KIDNEY STONES