Dosimetry for IMRT
Dosimetry for IMRT
Dosimetry for IMRT
- TAGS
- dosimetry
- imrt
- www.aapm.org
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Avoids Problems with<br />
Measuring Output Factors <strong>for</strong><br />
Small Fields<br />
•Charged g particle p equilibrium q<br />
– Nearly same charged particle spectrum<br />
• Temporal non-constancy<br />
non constancy<br />
– Deliberately uses temporal non-constancy<br />
– Mimics how composite small fields become<br />
larger irradiated fields<br />
• Partial volume effect<br />
– No partial volume effects