Main magnetic pole power device for induction-type electron accelerator
A technology of electron accelerator and power supply device, which is applied in the field of switching power supply device, which can solve the problems of inability to accelerate electrons, small output current, and complex structure, and achieve the effects of stable induction electric field, low power consumption, and small volume
Active Publication Date: 2015-11-11
丹东锐新射线仪器有限公司
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Problems solved by technology
[0004] Aiming at the shortcomings of the main magnetic pole power supply device of the inductive electron accelerator in the prior art, the circuit structure is complex, the output current is small, and the electrons cannot be accelerated to a high speed, the technical problem to be solved by the present invention is to provide a
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[0015] The present invention will be further elaborated below in conjunction with the accompanying drawings of the description.
[0016] Such as figure 1 As shown, the main magnetic pole power supply device of the induction electron accelerator of the present invention includes a full-bridge inverter circuit and an auxiliary energy circuit, wherein the front end of the full-bridge inverter circuit is connected to the power grid through a half-wave rectifier circuit and a step-up transformer, and the full-bridge inverter circuit The output end of the auxiliary energy circuit is connected to the output end of the full-bridge inverter circuit and connected to the main magnetic pole coil through a diode.
[0017] Such as figure 2 As shown, the auxiliary energy circuit includes a rectifier bridge, a filter capacitor and a single-tube chopper circuit. The output terminal of the bridge inverter circuit is connected. The single-tube chopper circuit uses an insulated gate bipolar t...
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The invention relates to a main magnetic pole power device for an induction-type electron accelerator, and the device comprises a full-bridge inversion circuit and an auxiliary energy circuit, wherein the front end of the full-bridge inversion circuit is connected to a power grid through a half-wave rectification circuit and a boosting transformer, and the output end of the full-bridge inversion circuit is connected to a main magnetic pole coil through a diode. The output end of the auxiliary energy circuit is connected to the output end of the full-bridge inversion circuit, and is connected with the main magnetic pole coil. The device employs a novel full-control type insulated-gate bipolar transistor semiconductor device, is small in switching resistance value, is strong in through-current capability, can guarantee the smooth change of the current of a main magnetic pole, does not cause sudden cutoff, stabilizes a magnetic field and an electric field, finally improves the stability of X-rays emitted by the accelerator, and is better in market prospect.
Description
technical field [0001] The invention relates to a switching power supply device, in particular to a main magnetic pole power supply device of an induction electron accelerator. Background technique [0002] At present, the maximum tube voltage that a general-purpose mobile X-ray machine can achieve is 500kV, that is, for iron, the half-value layer (the half-value layer is used to intuitively characterize the penetrating ability of X-rays, which usually means that the ray intensity is attenuated by half When the thickness of the material) is 10.5mm. For the 7.5MeV inductive electron accelerator, for iron, the half-value layer is 32mm, indicating that the inductive electron accelerator can penetrate objects with greater thickness. [0003] The main magnetic pole power supply device of the inductive electron accelerator currently on the market uses an inverter device composed of a semi-controlled device thyristor. Due to the characteristics of the semi-controlled device, when ...
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IPC IPC(8): H02M9/06
Inventor 张彬梅健强贾凡宫本旭
Owner 丹东锐新射线仪器有限公司