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In accelerator radiotherapy,energy spectrum is an important characteristic of the beam.It is very difficult to measure the spectrum directly because of the high X ray energy in radiation therapy.The method of using PDD to reconstruct the spectrum could get more actual spectrum,
In accelerator radiotherapy, energy spectrum is an important characteristic of the beam. It is very difficult to measure the spectrum directly because of the high X ray energy in radiation therapy. Method of using PDD to reconstruct the spectrum could get more actual spectrum,