Particle radiation therapy device
一种治疗装置、粒子射线的技术，应用在治疗、X射线/γ射线/粒子照射疗法、放射疗法等方向，能够解决小射束尺寸、无法减小所示距离、扫描式照射装置不能获得等问题，达到减小射束尺寸的效果
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Embodiment approach 1
[0038] figure 1 It is an overall schematic configuration diagram showing the particle beam therapy apparatus in Embodiment 1 of the present invention. figure 2 It is a configuration diagram showing the particle beam therapy apparatus in Embodiment 1 of the present invention. exist figure 1 Among them, the charged particle beam produced by the pre-stage accelerator 16 and accelerated by the pre-stage enters the accelerator (synchrotron) 14, is accelerated to the required energy, and is emitted from the emission deflector 17 to the beam delivery device 15 until the irradiation device 18, and is irradiated to the irradiated object. The beam delivery device 15 includes a focusing electromagnet 13 and a deflection electromagnet 12 . Part of the beam transport device 15 and the irradiation device 18 are attached to the rotary gantry 19 , and the irradiation direction of the irradiation device 18 can be changed by rotation of the rotary gantry 19 (indicated by an arrow in the f...
Embodiment approach 2
[0050] Figure 4 It is a block diagram showing the particle beam therapy apparatus in Embodiment 2. A particle beam therapy apparatus generally used for cancer treatment etc. uses an X-ray imaging device or the like for specifying an accurate position of the irradiation target because the irradiation target is cancer or the like existing in the human body. The position of the irradiated object here requires three-dimensional position information. Therefore, two sets of X-ray imaging devices are generally used and arranged so as to be orthogonal to each other in the imaging direction. The X-ray imaging device includes: an X-ray source that generates X-rays; and an imaging tube that images the projected X-rays. The particle beam therapy apparatus according to Embodiment 2 includes two sets of X-ray imaging devices, each having an X-ray source 30 and an imaging tube 31, but the imaging direction of each X-ray source and the imaging tube facing it is arranged so that, as Figure...
Embodiment approach 3
[0053] Such as Figure 9 Scattering occurs when a charged particle beam encounters an obstacle, as shown in the schematic diagram of . Therefore, in order to minimize the beam spot size, it is ideal to eliminate obstacles that cause scattering. However, there are elements such as unavoidable structural obstacles such as the beam exit window 7 . The beam exit window 7 is the boundary between the vacuum region or the gas region and the atmosphere and is therefore necessary. With respect to the above-mentioned structurally unavoidable obstacle causing scattering, as shown in Embodiment 1, it is arranged as far as possible on the downstream side to minimize the Figure 9 For the distance r shown, such a measure is valid.
[0054] Considering this problem from another point of view, if the scattering angle can be reduced even for obstacles arranged at the same position, the beam spot size can be reduced. The scattering angle depends on the material and thickness of the obstacle...
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