Radiation-resistant and radiation-protective combined periscope type light path structure

Abstract

The invention relates to a radiation-resistant and radiation-protective combined periscope type light path structure. The radiation-resistant and radiation-protective combined periscope type light path structure is characterized in that an 'L'-shaped light path channel of a protection frame for fixing a light path structure is formed by a vertical channel and a horizontal channel, the horizontal channel is arranged at the bottom of the vertical channel in a communicated manner, an opening which is formed in the left side of the upper portion of the vertical channel is used as a light path channel inlet, and an opening which is formed in the right side of the lower portion of the vertical channel is used as a horizontal channel light path inlet; a radiation-protective layer which is made of lead by means of casting is arranged on the outer surface of the protective frame; emergent light C which is parallel to incident light is formed in the 'L'-shaped light path channel by a first plane reflecting mirror and a second plane reflecting mirror; an optical axis of a radiation-resistant imaging lens 5 coincides with the emergent light C, and signals can be transmitted between the radiation-resistant imaging lens and a CCD (charge coupled device) camera by the aid of radiation-resistant optical fiber image bundles. The radiation-resistant and radiation-protective combined periscope type light path structure has the advantage that imaging elements and imaging equipment can keep working stably for a long time in intense-radiation environments.

Description

technical field [0001] The invention relates to a periscope optical path structure combined with anti-radiation and anti-radiation, which is especially suitable for observation and image collection under strong radiation environment, and belongs to the field of nuclear science and technology. Background technique [0002] Nuclear power is a kind of clean energy, and its safety is very important. Once a leak occurs, the extremely strong radioactive substances released threaten the personal safety of the staff. Therefore, observation equipment must be relied on to maintain normal and persistent monitoring of nuclear-related targets. . In the case of irradiation by nuclear radiation sources, the camera monitoring instruments exposed to the radiation will be damaged due to the ionizing radiation effect and displacement radiation effect of components, resulting in severe deformation of video signals or no signal, unable to work normally, and subsequent The device is permanently ...

AI Technical Summary

Problems solved by technology

At present, anti-radiation imaging equipment adopts anti-radiation hardening of charge-coupled devices. This method involves the processing of precision electronic components, and its conditions are harsh, the cost is high, and the protection effect is unstable.

The method of protecting the imaging equipment is usually implemented by casting a lead layer. The thickness of the lead layer depends on the strength of the radiation, but this method usually leads to an increase in the volume and weight of the entire device, which is inconvenient to carry.

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