- Created by: Emmatjies
- Created on: 14-01-20 16:51
Quality Assurance Definition
A programme put in place to ensure a level of quality.
Quality Control Definition
How we measure, monitor, and maintain standards and each aspect
Light beam diaphragm permits collimation.
It ensures congruency between the light beam and the radiation field.
The light beam diaphragm also permits correct centring of the beam.
Collimation affects 3 different things:
Scatter- Collimation reduces scatter radiation
Quality- Collimation improves the quality of the radiograph
Dose- Collimation reduces dose to the pt as it is reducing low level energy photons that are not necessary.
Beam alignment tools
If both steel balls are seen on the radiograph there is a lack of congruency. The brass plate underneath shows how far the congruency is out by.
Remedial level- The level at which the test results differ by set margins and action should be taken to rectify it.
Suspension level- The level at which equipment use should be suspended and equipment should be taken out of service with immediate effect.
IPEM- Institute of physics and engineering in medicine.