Real-time monitoring method and system for medical linear accelerator use environment
A linear accelerator, real-time monitoring technology, applied in the directions of X-ray/γ-ray/particle irradiation therapy, instruments, radiotherapy, etc., can solve the problems of changing the trajectory, weakening, interference of the radiotherapy process, etc., to reduce misjudgment and operation. The effect of simplicity and shortened judgment time
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Embodiment 1
[0033] In one or more embodiments, a method for real-time monitoring of the environment in which a medical linear accelerator is used is disclosed, referring to figure 1 , including the following procedures:
[0034] (1) Fluorescent labeling of alpha particles;
[0035] (2) Accelerate the radiated particles and the labeled α particles in the same magnetic field, and output them separately through the medical linear accelerator;
[0036] (3) The accelerated α particles are blocked by the fluorescent display screen; a safe area is set on the fluorescent display screen, and the number of α particles falling into the safe area is used to determine whether the change of the magnetic field has an impact on the radiation field.
[0037] Specifically, in this embodiment, the reason why α particles are selected is that their penetration effect is the worst, which can avoid harm to patients due to particle penetration.
[0038] Commonly used radiation particles include: electrons, pro...
Embodiment 2
[0046] In one or more embodiments, a real-time monitoring system for the use environment of a medical linear accelerator is disclosed, including:
[0047] Apparatus for fluorescently labeling alpha particles;
[0048] A device for separately accelerating radioactive particles and labeled alpha particles in the same magnetic field and outputting them separately through a medical linear accelerator;
[0049] A fluorescent display screen for blocking accelerated α particles, and a safe area is set on the fluorescent display screen;
[0050] A device used to determine whether changes in the magnetic field have an impact on the radiation field based on the number of alpha particles falling into the safe area.
[0051] The specific implementation manner of the above-mentioned device is implemented by the method disclosed in Embodiment 1, and details are not repeated here.
Embodiment 3
[0053] In one or more embodiments, a real-time monitoring system for the use environment of a medical linear accelerator is disclosed, referring to figure 2 ,include:
[0054] A low-energy beam transmission line LEBT, an injector, a medium-energy beam transmission line MEBT, a drift tube linear accelerator and a medical linear accelerator connected in sequence; the medical linear accelerator includes an alpha particle output terminal and a radiation particle output terminal; the alpha particle A fluorescent display screen capable of completely blocking emitted α particles is set at the output end; a safe area is set on the fluorescent display screen.
[0055] Among them, LEBT is a low-energy beam transport line for beam transport, and MEBT is a medium-energy beam transport line;
[0056] The drift tube linear accelerator includes: placing a series of metal cylindrical tubes - drift tubes in a long metal cavity. The center of the drift tubes is the beam channel, and the beam ...
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