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Summary: measurements in small static fields
• Consensus so far on current good practice for reference and relative dosimetry in
static small MV photon fields:
Careful experimental setup
Choice of suitably small detector which is known to minimally perturb fluence
Approximately correct for volume averaging and energy dependence of
detector
Corroboration of data
•
Current research efforts in small field dosimetry focus on the determination of
detector specific output correction factors.
•
Detectors requiring output corrections greater that 5% are not recommended
for dose determination in small fields.
•
The IAEA TECDOC will include a consistent set of such data and will be an
international code of practice for small static field dosimetry.