In External Beam Radiotherapy, transverse and longitudinal<unk>  measurements are taken by a radiation detector in order to characterise the radiation beams from medical linear accelerators. Typically, an ionisation chamber and water phantom are used to create these radiation<unk> s. Water is used due to its tissue equivalence.
Central Axis<unk>  for 15MV photon beam incident on water phantom. Here the linear accelerator collimation projects a 1x1 cm2 field at isocentre i.e. 100 cm SSD
Tranverse<unk>  measurements are performed in the x (crossplane) or y (inplane) directions perpendicular to the radiation beam, and at a given depth (z) in the phantom. These are known<unk> s.<unk>  measurements taken along the z direction create radiation<unk>  distribution known as a depth-dose curve.
Dose Profile
Risk factor template
Theoretical plate
Microbiology template
Overview template
Clinical trials terminology
Diagnostic Criteria
Associate's degree