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Diode Detectors: The Right Choice for IMRT QA
- Sun Nuclear Diodes Are:
- Designed for measuring steep dose gradients - critical for accurate IMRT QA
- Proven - used in thousands of radiotherapy facilities worldwide
- Stable - real-world clinical use proves Sun Nuclear diode stability is the same if not better than ion chambers
- Sensitive - 18,000 times more sensitivity than air cavity ion chambers
The dose volume averaging effect of ion chambers is well documented. When using ion chambers for beam modeling and QA, the planned and measured dose may agree because they BOTH under and/or overestimate dose to the target volume and surrounding structures. The QA results may be favorable, but they are not satisfying the objective of revealing inconsistencies between the planned dose and actual delivered dose.
