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The spherical mold is a polyhedral spherical mold with a diameter of К160mm developed according to the technical specifications of the AAPM REPORT NO. 54 report of the American Physicians Association. It is a dosimetric performance test designed for gamma knife treatment equipment.
One of the devices. The center can be inserted with a thickness of 10mm, and different inserts can be inserted into 0.015cc, 0.125cc ionization chamber, thermolysis film and semiconductor detector, respectively, to meet the needs of different dose measurement methods.
The output dose, linearity, repeatability, transmission dose, distribution of dose fields(such as: equidose curve, off-axis ratio, and semi-height width of radiation field), coking ratio, and verification of actual output dose of treatment plan. Measurement of parameters.