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Phantom for measuring ionizing radiation

A technology of ionizing radiation and water model, applied in radiation measurement, measurement device, X/γ/cosmic radiation measurement, etc., can solve problems such as danger, inaccurate orientation, wrong determination of radiation parameters, etc.

Inactive Publication Date: 2013-01-02
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is a risk that this orientation will be inaccurate, thereby causing errors in the determination of the radiation parameters; thus possibly endangering the patient examined or treated with the respectively measured radiation source

Method used

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  • Phantom for measuring ionizing radiation
  • Phantom for measuring ionizing radiation
  • Phantom for measuring ionizing radiation

Examples

Experimental program
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Embodiment Construction

[0029] FIG. 1 shows a perspective view of a water model 1 on which a rectangular parallelepiped container 3 that is filled with water 2 and opens upwards is fastened with a positioning device 4 with which different measuring positions in the water 2 can be fixed. The detector 5 for measuring the radiation incident into the water 2 is three-dimensionally positioned. Three coordinates x, y and z are used, whose coordinate axes 6-8 are parallel to the edge 9-11 of the container 3, to specify the corresponding measuring position. The positioning device 4 is fixed in the upper corner of the container 3 with four fasteners 12-15. Each two fastening elements 12 , 13 or 14 , 15 respectively hold a first rail 16 and a second rail 17 opposite the container 3 , on which rails the first holding element 18 can be moved parallel to each other in the direction of the x-axis 6 and the second holding element 19 . The two holding elements 18 , 19 are connected by a third rail 20 running horiz...

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Abstract

The invention relates to a water phantom (1) with detectors (5) for measuring ionizing radiation which can be positioned at different measuring positions in a container (3) filled with water (2), wherein the water phantom (1) having at least one sensor (24-26, 42, 43, 72, 73) for determining the orientation of the positioning device (4) provided for positioning the detector (5) relative to the horizontal plane (23), thereby Measuring errors that may arise during the measurement due to inaccuracies in the positioning of the detector (5) relative to the horizontal plane (23) are avoided with little time expenditure; this orientation can be directly based on the use of at least two distance sensors (24-26 , 72, 73) to determine the distance (a-c) relative to the horizontal plane (23), or can also be determined indirectly based on the inclination relative to gravity measured with at least one inclination sensor (42), respectively.

Description

technical field [0001] The invention relates to a water phantom for measuring ionizing radiation incident on water. Background technique [0002] Phantoms are used in medical technology to measure radiation parameters of ionizing and thus potentially cell-damaging radiation and their effects on the human body, such as X-ray or gamma-ray radiation for radiation therapy, as well as high-energy electrons, Proton and ion radiation. [0003] Since the human body is primarily composed of water, the radiation incident into a water-filled container is measured using a water model suitable for determining the effect of this radiation on the human body. To measure this radiation, a detector or an arrangement of individual detectors can be arranged at different measuring points in the water by means of a positioning device. A water model with only one detector is described below, but the concept should also include devices formed from multiple single detectors. [0004] With the det...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/08A61N5/00
CPCA61N5/1075A61N2005/1076G01T1/169
Inventor 马克·德拉皮埃尔蒂姆·尤斯
Owner SIEMENS AG
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