Multifunctional measurement device for stereotactic radiotherapy

Abstract

The invention discloses a multifunctional measurement device for stereotactic radiotherapy, and aims to provide a measurement device which combines multiple measurement functions, does not need to be replaced, can measure each item of physical performance parameter in the stereotactic radiotherapy by only replacing an insert therein and can obtain focusing characteristic of a single source per se. The key points of the technical scheme are that: the device consists of a die body outer layer, a die body inner layer, a die body multifunctional insert and a base ring, wherein a body of the measurement device is formed by fixing the outer layer and the inner layer on the base ring with screws; a gap is reserved between each outer layer and each inner layer for inserting a film; and a columnarcircular hole is reserved on the inner layer close to the central position of the base ring for placing the multifunctional insert.

Description

technical field [0001] The invention relates to a medical measuring device, in particular to a multifunctional measuring device with various plug-ins for stereotactic radiotherapy. Background technique [0002] Stereotactic radiotherapy technology has the characteristics of large dose gradient and high fractional dose. The quality assurance / control of the whole system is very important. At present, various stereotactic radiotherapy measurement devices used in the medical field at home and abroad can measure some characteristic parameters of the dose field. Such as focus accuracy, focus absorbed dose rate, focus field size deviation and penumbra. But there are at least two deficiencies in these measuring devices. First of all, a device is often designed according to one or a few measurement indicators, and the measurement function is relatively single. During the measurement process, the measurement device needs to be replaced to complete the measurement of all indicators, w...

AI Technical Summary

Problems solved by technology

First of all, a device is often designed according to one or a few measurement indicators, and the measurement function is relatively single. During the measurement process, the measurement device needs to be replaced to complete the measurement of all indicators, which is time-consuming and laborious.

Secondly, it can only measure the focusing characteristics of the dose distribution formed by the joint irradiation of all radiation sources, and cannot measure the focusing characteristics of a single source itself

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