Engineering implementation of permanent magnet uniform spreading system for 3 MeV electron beam accelerator
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Electron radiation technology, a significant application of non-power civil nuclear technology, opens up various research opportunities for electron beam accelerators as radiation sources. This paper introduces the engineering implementation of a permanent magnet uniform spreading system for the 3 MeV electron beam accelerator. The system is designed to improve radiation homogeneity, which is a crucial performance parameter in the radiation processing. The paper firstly investigates the collimation of magnets and beam spot in electron beam accelerators and proposes a novel collimation method. In addition, we also address various engineering implementation challenges encountered during the practical application of the uniform spreading system’s permanent magnet devices. As a prerequisite for the application of uniform spreading system, a long-term stability experiment is conducted on the permanent magnets in radiation environments. The engineering feasibility of the uniform spreading system is ultimately verified by assessing the radiation homogeneity at the target using radiation dose tablets.
Abstract
Electron radiation technology, a significant application of non-power civil nuclear technology, opens up various research opportunities for electron beam accelerators as radiation sources. This paper introduces the engineering implementation of a permanent magnet uniform spreading system for the 3 MeV electron beam accelerator. The system is designed to improve radiation homogeneity, which is a crucial performance parameter in the radiation processing. The paper firstly investigates the collimation of magnets and beam spot in electron beam accelerators and proposes a novel collimation method. In addition, we also address various engineering implementation challenges encountered during the practical application of the uniform spreading system’s permanent magnet devices. As a prerequisite for the application of uniform spreading system, a long-term stability experiment is conducted on the permanent magnets in radiation environments. The engineering feasibility of the uniform spreading system is ultimately verified by assessing the radiation homogeneity at the target using radiation dose tablets.