3results about How to "Improve radiation effect" patented technology

The utility model relates to radioactive isotope marking transportation device with prevent leaking structure, including transportation base, one end of transportation base is connected with the device shell, the top movable joint of device shell is provided with device top, device top bottom is provided with sealing strip, the inboard fixed connection of device shell has the isolation chamber, the inboard of isolation chamber is provided with prevent leaking container, the outside of prevent leaking container is provided with limit stop, limit stop bottom is provided with transmission assembly. The novel through the rotation knob, knob cooperation transmission gear A and transmission ring and and transmission gear B drive the limit stop of isolation chamber top hold prevent leaking container, prevent in the transportation process prevent leaking container to pour, and when device top is closed, the sealing strip of device top bottom surface cooperates with sealed baffle, thereby improved the sealing of device, ensure device inside and outside environment complete isolation, cause the radioactive material leakage of prevent leaking container inner wall.

This application relates to a special optical fiber, comprising a core layer and an outer cladding layer arranged sequentially from the inside to the outside along the radial direction of the special optical fiber, wherein the core layer includes a silicon nitride layer. The special optical fiber provided by this application incorporates a silicon nitride layer, disposed within the outer cladding layer. Silicon nitride has excellent thermal conductivity, enabling rapid dissipation of heat accumulated within the core / cladding layer, preventing localized hotspots that could degrade fiber quality and increasing the damage threshold. Silicon nitride remains stable at temperatures above 1200°C in an inert atmosphere and is unlikely to react with other substances, completely solving the problem of polymer carbonization. In terms of mechanical and chemical protection, silicon nitride acts as a chemical barrier. The dense, non-porous structure of the silicon nitride film gives this special optical fiber resistance to salt spray and hydrogen sulfide corrosion. Silicon nitride is a more effective Compton scatterer than silicon dioxide, reducing gamma photons incident deep within the optical fiber and improving its irradiation performance.

The utility model discloses a turn-over device in an irradiation box, which comprises a base, a first linear moving assembly, a left clamping assembly, a right clamping assembly, a second linear moving assembly, a front clamping assembly and a rear clamping assembly, the first linear moving assembly is arranged on the base, the left clamping assembly is arranged on the first linear moving assembly, and the right clamping assembly is arranged on the second linear moving assembly. The right clamping assembly is arranged on the first linear moving assembly, the second linear moving assembly is arranged on the base, the front clamping assembly is arranged on the second linear moving assembly, and the rear clamping assembly is arranged on the second linear moving assembly. According to the utility model, the first linear moving assembly, the left clamping assembly, the right clamping assembly, the second linear moving assembly, the front clamping assembly and the rear clamping assembly are arranged, so that the effect of no-dead-angle turn-over irradiation is realized; the height of the first clamping plate and the height of the second clamping plate can be adjusted so that machining equipment in irregular shapes can be clamped.