Patent ID: 7902515

Claim:
A radiation beam analyzer for detecting radiation dosimetry of a beam emitted along an axis from a radiotherapy treatment device comprising: a dynamic phantom body formed of a material having a density proximal that of a human body; a tank containing said dynamic phantom body; at least one dosimetry probe constructed and arranged to sense photons and electrons, said at least one dosimeetry probe positioned within said dynamic phantom body; a carriage supporting said tank and said dynamic phantom body; a guideway, said carriage secured to said guideway; a first mechanism incrementally moving said carriage, said tank and said dynamic phantom body relative to said guideway in a X-axis, a Y-axis and a Z-axis, said X-axis, Y-axis and Z-axis are substantially orthogonal to each other; a second mechanism incrementally moving said at least one dosimetry probe within said dynamic body relative to said tank; and a controller connected to and operating said first and said second mechanisms simultaneously to move both said tank and said at least one dosimetry probe relative to each other to maintain the distance between a radiation source and the axis of a beam emitted from the radiation source to said at least one dosimetry probe constant; whereby movement of said dynamic phantom body through a series of locations is carried out so as to provide sufficient data to determine the proper dose of radiation required for radiotherapy treatment.