7.5 Quality Assurance measures

For every measuring system, a quality assurance plan has to be established, describing the program and actions to ensure a constant quality of measurements with an in situ gamma spectrometer.

The quality assurance plan includes, among others:

• periodical quality checks,
• verification/test measurements,
• special qualification and training, and
• documentation of quality controls.

Some recommendations are provided in the following sections to ensure the validity of the measurements within a site characterization.