Modules / Light/Radiation Field

Light/Radiation Field

Light- vs radiation-field coincidence (TG-142). Penny technique now; DoseLab / SNC phantoms coming soon.

Light- vs radiation-field coincidence (TG-142). Set the light field to a known size, place a US penny straddling each of the four light-field edges (the light edge bisecting each penny), acquire one EPID portal image, and upload it below. The analyzer locates each penny, finds the 50%-dose radiation edge, and reports the signed Δ per edge.

Test method

Phantom / technique More vendor phantoms will be added as sibling methods.

Image

EPID portal image — DICOM RT Image (or CR/DX)

Field & phantom

Field size X (cm) blank = 10

Field size Y (cm) blank = 10

Penny diameter (mm) blank = 19.05

Machine & tolerance

Machine profile

Action level (mm) blank = 1.0

Tolerance (mm) blank = 2.0

Strip patient name / MRN from the report

Report notes (optional)

Cancel

Tolerances default to the configured machine profile (TG-142). Review with your Qualified Medical Physicist. Files are processed locally.