Author/Authors :
Romero، نويسنده , , J.L and Osborne، نويسنده , , J.H and Brady، نويسنده , , F.P and Caskey، نويسنده , , W and Cebra، نويسنده , , D.A and Partlan، نويسنده , , M.D and Kusko، نويسنده , , B.H and King، نويسنده , , R.S and Mirshad، نويسنده , , I and Kubo، نويسنده , , H and Daftari، نويسنده , , I and Chu، نويسنده , , W، نويسنده ,
Abstract :
A method is described for imaging integrated density along the beam path in phantoms that makes use of high energy proton beams. An application of the technique is in the positioning of patients in a proton therapy radiation facility. It makes use of a proton range telescope for density variation and X-Y detectors for planar positioning. The principle of the method was tested at a proton energy of 66 MeV. Good visual quality is seen in the tests. The measurements are compared with detailed Monte Carlo simulations, and good agreement is found. We apply the simulations to high energy proton beams (245 MeV) and show that the method should provide good visual quality and sensitivity for positioning at the higher energies necessary for whole body therapy.
