10.1 - Dosimeter Principles
These notes have been based on Simran Gill's physics tutorial given in 2010.
The ideal dosimeter should:
- Be accurate
- Be precise
- Show a linear response to dose
- Have minimal variation with radiation quality
- Have minimal variation with absolute dose
- Have minimal variation with dose rate
- Have minimal variation with position
- Have a high spatial resolution
When something is ideal, it doesn't exist yet.
Accuracy and Precision
Accuracy refers to how close the reading of a device is to the actual value. If the accuracy is poor then a systematic error may result.
Precision refers to how close repeated readings of the device agree with each other. If the precision is poor then larger random errors may result.
