Multifunctional measuring mold body

Abstract

The invention discloses a multifunctional measuring mold body. The multifunctional measuring mold body comprises an upper template, an upper ionization chamber measuring plate, a multichannel detector plate, a lung measuring plate, multiple standard building measuring plates, multiple film measuring plates, a lower ionization chamber measuring plate and a lower template, wherein the aforementioned templates are successively stacked in a vertical direction, and at least one diagonal line of each aforementioned template is provided with at least two positioning holes. The multifunctional measuring mold body further comprises multiple positioning rods for inserting into the positioning holes. The aforementioned templates are fixed to form one body by inserting the positioning rods into the positioning holes. The template types and number used can be adjusted according to requirements when the multifunctional measuring mold body is used for measurement. The multifunctional measuring mold body provided by the invention can not only be used for single-layer two-dimensional film dosimetry verification, but also be used for multi-layer three-dimensional film dosimetry verification and daily quality assurance work for ensuring the conformity, flatness and symmetry of the light field and radiation field of an accelerator and the like.

Description

technical field [0001] The invention relates to a multifunctional measurement phantom, in particular to a multifunctional measurement phantom used for conventional radiation therapy, three-dimensional conformal dose verification, reverse intensity modulated dose verification, etc., belonging to the technical field of medical instruments. Background technique [0002] Radiation therapy, chemotherapy and surgery are the three major technical means to treat tumors. With the rapid development of computer technology and imaging, radiation therapy has undergone tremendous changes, from two-dimensional traditional radiation therapy before the 1970s to three-dimensional conformal radiation therapy (3D for short) in the 1980s. -CRT), to the intensity modulated radiation therapy (IMRT for short), which has emerged in recent years, radiation therapy has entered the era of precise radiation therapy from the era of extensive dose control and fuzzy dose distribution. The radiation field ...

AI Technical Summary

Problems solved by technology

However, the existing dose verification tools basically only meet the needs of two-dimensional planar dose verification. For three-dimensional conformal radiation therapy, especially intensity-modulated radiation therapy, there is still a lack of accurate, effective, convenient and fast verification methods.

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