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KR704 type X, γ knife detection phantom

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KR704 type X, γ knife detection phantom image

KR704 type X, γ knife detection phantom

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Brief description:Y-knife detection phantom This set of phantoms is designed for quality control testing of X-ray and Y-ray stereotactic radiotherapy systems and meets the health industry standards of WS582-2017. It can measure indicators such as focal dose rate, irradiation field size, irradiation field penumbra width, isocenter deviation, etc. The design of this set of phantoms is sufficient for quality control testing of X-ray and Y-ray stereotactic radiotherapy systems, and fully meets the health industry standards of WS582-2017. It can measure indicators such as focal dose rate, irradiation field size, irradiation field penumbra width, isocenter deviation, etc.

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Overview

X, γ knife detection phantom made in China

X-knife inspection phantom

Y-knife detection phantom This set of phantoms is designed for quality control testing of X-ray and Y-ray stereotactic radiotherapy systems and meets the health industry standards of WS582-2017. It can measure indicators such as focal dose rate, irradiation field size, irradiation field penumbra width, isocenter deviation, etc. The design of this set of phantoms is sufficient for quality control testing of X-ray and Y-ray stereotactic radiotherapy systems, and fully meets the health industry standards of WS582-2017. It can measure indicators such as focal dose rate, irradiation field size, irradiation field penumbra width, isocenter deviation, etc. The complete set of phantoms consists of three parts: head phantom, body phantom, and focus rod:

Head mold∶The diameter is φ160mm, consisting of two hemispheres and connectors. Different plug-in boards can be inserted into the centers of the two hemispheres as needed. They can be inserted into 0.015cc and 0.125cc ionization chambers respectively. The plug-in board has a center detector jack and an off-center detector jack. There is also a slot for inserting film.

phantom∶The phantom is elliptical, the long axis length of the elliptical cylinder cross section is 280mm, and the short axis length is 240mm. The height of the elliptical cylinder is 200mm. The elliptical cylinder has slots for inserting the film inserting board and the detector inserting board. The detector board has a center detector jack and an off-center detector jack for inserting detectors.

1. Measurable gamma knife performance indicators:

1) Focus dose rate

2) Relative deviation between focus planned dose and measured dose

3) The distance between the mechanical center and the radiation field center

4) Maximum deviation between irradiation field size and nominal value

5) Penumbra width and half maximum width of the illumination field on the focal plane

2. The model mainly includes:

1) Head sphere model

2) Body columnar phantom

3) Focus measuring rod

4) Film analysis software

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