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Film QA

Film QA. Pixels Exceeding Gamma = 1%. Courtesy of Chester Ramsey. Scandidos Delta 4. A cylinder-shaped plastic phantom with 2 imbedded orthogonal crossing detector planes. 1069 diode detectors Dose is recorded in 2 planes and a 3D dose is reconstructed for comparison with the QA plan.

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Film QA

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  1. Film QA Pixels Exceeding Gamma = 1% Courtesy of Chester Ramsey

  2. Scandidos Delta4 • A cylinder-shaped plastic phantom with 2 imbedded orthogonal crossing detector planes. • 1069 diode detectors • Dose is recorded in 2 planes and a 3D dose is reconstructed for comparison with the QA plan.

  3. Arc Check – Sun Nuclear • 1386 diode detectors arranged in cylindrical geometry • Measure entrance and exit dose • Result is a composite dose for entire delivery

  4. IBA MatriXX • 2D array of 1020 ion chambers. • The cumulative dose is measured using the MatriXX placed in the MULTICube phantom. • 2D dose distribution can be measured for coronal and sagittal planes.

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