Abstract:
Background SGEMP refers to the electromagnetic effect generated by the interaction between X-rays and systems. SGEMP act on electronic systems will cause equipment malfunction or damage.
Purpose For the strong electromagnetic, proposed an approach low atomic mumber material coating the surface of the system or component for achieving significantly reduce SGEMP effets by reducing the mumber of photoelectrons emitted out of the surface. In this paper,
Methods A symmetrical differentical potocurrent measurement system was designed for resisting common mode interference introduced by X-rays radiation, while applying optical transmission to solve the strong interference of measurments.
Results The results showed that the coating could effectively reduce the mumber of emission photoelectron form surface, and reduced the photocurrent intensity about 32% when coating 1 μm Al2O3 on the surface of 0.5 cm auminum substrate.
Conclusions The method proposed in this paper has been verified to effectively reduce the intensity of SGEMP.