36results about How to "Prevent Radiation Leakage" patented technology

The invention discloses a high-efficiency fire-resistant heat-dissipating cable. Shielding tapes are coated and connected mutually by wave-shaped overlapped segments at the two sides to form a shielding layer; and heat collecting chambers are arranged between the shielding layer and a heat collecting sheath and are communicated to the outer surface of the cable through cooling holes. Armored steeltapes are coated and connected mutually to form a metal armor layer by steel tape overlap-joint segments at the two sides; embedded holes are formed in the steel tape overlap-joint segment at one side of each armored steel tape; and embedded bosses are arranged at the steel tape overlap-joint segment at the other side of the armored steel tape. When overlapped joint is performed, the embedded bosses are embedded into the embedded holes. Besides, a rare-earth fire-resistant layer is made of a material comprising 8wt% to 12wt% of fluororubber, 5wt% to 8wt% of aluminum hydroxide, 2wt% to 4wt% ofrare earth oxide, 1wt% to 2wt% of glycerol, 2wt% to 4wt% of silicon carbide, 3wt% to 6wt% of lanthanum phosphate, 6wt% to 8wt% of zirconic acid gadolinium, and remainder being epoxy resin. The cablehas the good high-temperature-resistant and flame-retardant performances; heat can be dissipated efficiently; and the cable has the stable structural integrity and the good mechanical performance.

The invention discloses a radiation-proof stainless steel door with glass, and relates to the technical field of stainless steel door and window equipment, including an upper guide rail, a lower guide rail, a stainless steel groove, and a radiation-proof door panel group, and the radiation-proof door panel group is fixed by "U"-shaped stainless steel grooves around , the upper end and the lower end of the stainless steel tank are respectively movably connected with the upper guide rail and the lower guide rail through welded pulleys; the anti-radiation door panel group includes the first stainless steel door panel, the second stainless steel door panel, lead plate, fireproof board, the first stainless steel door panel, the second stainless steel door panel A lead plate and a fireproof plate are closely arranged between the door plates. The lead plate is arranged on a side close to the first stainless steel door plate. The first stainless steel door plate is close to the room. The invention is easy to operate, improves the anti-radiation performance of the anti-radiation stainless steel door, and prolongs the service life.

The invention discloses a secondary fluorescent wide-angle multifunctional imaging device which comprises a light source adjusting mechanism, a detection plate adjusting mechanism, a wide-angle lightsource, a detection plate, a fixed tray and a rotating mechanism. The wide-angle light source and the detection plate are disposed at the two sides of the center of the fixed tray respectively; the light source adjusting mechanism is used for adjusting the height of the wide-angle light source and the distance between the wide-angle light source and the detection plate; the detection plate adjusting mechanism is used for adjusting the height of the detection plate and the distance between the detection plate and the wide-angle light source; the rotating mechanism is used for enabling the wide-angle light source and the detection plate to rotate synchronously with the fixed tray as the axis. The secondary fluorescent wide-angle multifunctional imaging device can perform low-dose imaging onvarious parts of the human body by moving horizontally and vertically; meanwhile, through the rotating mechanism, the wide-angle light source and the detection plate can rotate synchronously with thefixed tray as the axis, and vertical rotary scanning and perspective analysis of various parts of the human body are realized; the device adjusts imaging through wide-angle cone light and is small inplane space occupation, diversified in function and applicable to various parts of the human body.

The present invention provides an inspection apparatus using radiation, which prevents radiation leakage and shortens the inspection time. An inspection apparatus includes a feed-in preparation chamber, an imaging chamber, and a feed-out preparation chamber. Each preparation chamber includes a feed-in unit that receives an inspection object through a first opening, a traverser that translates the received object to a second opening in a direction different from the receiving direction of the object, and a feed-out unit that moves the object in a direction different from a moving direction of the traverser and discharges the object through the second opening. The imaging chamber includes an imaging unit that images the object fed from the feed-in preparation chamber. The traverser includes a mount for the object, and a shield that moves together with the mount and prevents radioactive rays entering one of the first and second openings and propagating in the moving direction of the traverser from reaching the other opening.

The invention discloses a substrate integrated waveguide bandpass filter. The substrate integrated waveguide bandpass filter comprises a first metal layer, a dielectric layer and a second metal layer, wherein the first metal layer, the dielectric layer and the second metal layer are arranged in a stacked mode from top to bottom. The first metal layer comprises a first main transmission line, a second main transmission line, a first gradual transition line, a second gradual transition line and a first metal plate. The first metal plate comprises a first strip-shaped open pore, a second strip-shaped open pore, a third strip-shaped open pore, a fourth strip-shaped open pore, a fifth strip-shaped open pore, a first circular open pore and a second circular open pore. The dielectric layer comprises a dielectric substrate, a first plated-through hole, a second plated-through hole, a first plated slot, a second plated slot, a third plated slot, a fourth plated slot and a fifth plated slot. The second metal layer includes a virtual metal plate. The substrate integrated waveguide bandpass filter has the advantages that insertion loss caused by radiation is reduced, the limit on a machining technology is avoided, and therefore the substrate integrated filter can be applied to high-band filtering.

The invention belongs to the technical field of nuclear industry maintenance and particularly relates to a maintenance method of MOX equipment. The maintenance method includes: transferring radioactive objects in a to-be-maintained glove box into an adjacent glove box; sealing the to-be-maintained glove box, and using air circulation and dust collection to lower the radioactive level in the to-be-maintained glove box; performing chemical decontamination on workbench surfaces, wall faces and equipment surfaces in the to-be-maintained glove box; performing dose analysis on the radioactive levelin the to-be-maintained glove box; if the radioactive level in the to-be-maintained glove box meets radioactivity regulations, allowing operation staff to enter the to-be-maintained glove box; if theradioactive level in the to-be-maintained glove box does not meet the radioactivity regulations, continuing the third step until the radioactive level meets the radioactivity regulations; building a gas tent in a preparation area to prevent radioactive contamination from being brought to the outside; allowing the operation staff wearing special protective garments to enter the to-be-maintained glove box to perform maintenance. By the method, the radioactive level can be lowered evidently, the safety of maintenance workers can be guaranteed, radioactive leakage can be avoided, and operation safety under high-radiation work conditions is achieved.

The invention discloses x-ray-based 3D reconstruction on-line detection equipment, which comprises a material conveying device, and an x-ray emission device and an x-ray receiving device which are respectively arranged below and above the material conveying device, wherein the material conveying device comprises a first translation mechanism, a second translation mechanism which is perpendicular to the first translation mechanism and in driving connection with the first translation mechanism, and a transfer track mechanism which is parallel to the first translation mechanism and in driving connection with the second translation mechanism. The x-ray-based 3D reconstruction on-line detection equipment not only can detect the defects on a material plane but also can detect the defects in a longitudinal direction of materials, the all-directional and dead-angle detection of the materials can be realized, and the detection precision is high. Meanwhile, the invention further provides an x-ray-based 3D reconstruction detection method. Through the method, a 3D image of the material detection can be reconstructed, so that the detection of the defects of the materials in the longitudinal direction is realized, the detection is comprehensive, the detection blind area is reduced, and the all-directional detection of the materials is realized.

The present invention relates to a precast radiation protection board, which is structured for jointing another protection board. The protection board includes a protection layer that is formed of a mixture of barium sulfate and cement and outside isolation plates that are respectively attached to opposite sides of the protection layer. The outside isolation plates are fiber cement boards. This arrangement allows the precast structure to be efficiently installed and allows for direct painting or decorative coating, so as to significantly reduce operation time.

The invention discloses a welding detection device. The device comprises a cabinet body, wherein the cabinet body is internally provided with a cavity; a first embedding groove is formed in the inner top wall of the cavity; a second embedding groove is formed in the inner bottom wall of the cavity; an operating cavity which extends to the right side is arranged in the cabinet body at the bottom of the second embedding groove; a through groove which extends upwards and penetrates through the inner bottom wall of the cabinet body is formed in the tail end of an extending section of the right side of the operating cavity; a pushing-ascending groove which extends upwards and penetrates into the first embedding groove is formed in the inner wall of the rear side of the cavity; a first screwed rod is arranged in the pushing-ascending groove, and is connected with a first motor; the first motor is arranged in the inner top wall of the first embedding groove and is fixedly connected; a first glidingly connected block which is connected in a thread fit way and is connected with the pushing-ascending groove in a glidingly connected fit way is arranged on the first screwed rod; the front end surface of the first glidingly connected block penetrates into the cavity and is fixedly provided with a cross rod; and glidingly connected plates are equally arranged on the two sides of the cross rod. The device has the advantages of simple structure, convenient operation, wide detection range and high efficiency, leakage of ray is prevented, and detection safety is improved.

The invention discloses a TBM slag sheet ray back scattering real-time scanning imaging device and method, and solves the problems that in the prior art, the appearance condition of a slag sheet can only be obtained on site, the mechanical analysis of the slag sheet is tedious, and the time consumption is long; the device has the beneficial effects that continuous operation can be realized, and the internal and external characteristics of the slag sheet can be obtained in real time; the scheme is as follows: according to the TBM slag sheet ray back scattering real-time scanning imaging deviceand method, the device comprises supports, an X-ray back scattering scanning probe and a computing terminal, wherein the supports are capable of crossing a TBM conveyor belt or are arranged on two sides of the TBM conveyor belt; the X-ray back scattering scanning probe which is arranged in the shell, the shell is supported by the supports, and the shell can be arranged above the TBM conveyor belt,and the X-ray back scattering scanning probe is used for detecting the slag sheet conveyed by the TBM conveyor belt and receiving the data information; and the X-ray back scattering scanning probe isconnected with the computing terminal, and the computing terminal receives data information received by the X-ray back scattering scanning probe, so that the size and shape of the slag sheet and theinternal characteristics of the slag sheet are obtained.

The invention discloses a lighting device used for a glove box. The lighting device comprises a lampshade and LED lamp beads; the lampshade comprises a hollow columnar body with one opened end and theother closed end, the opened end of the lampshade is arranged on a preset opening of the glove box, the closed end of the lampshade and a lampshade body stretch into the glove box, and the preset opening is closed; the LED lamp beads are arranged in a hollow cavity of the lampshade, and can be put in and taken out from the opened end.

The invention discloses an electron beam curing shielding device allowing continuous feeding of plates. The electron beam curing shielding device comprises a conveying assembly used for conveying the plates, and the conveying assembly comprises a plurality of conveying rollers which are arranged at intervals; the outer side of the conveying assembly is provided with a closed shielding cover in a covered mode, a conveying channel extending along the conveying direction of the conveying assembly is arranged in the shielding cover, and the conveying channel forms a feeding opening and a discharging opening correspondingly at the two ends of the shielding cover; the conveying channel comprises a feeding area, an irradiation curing area and a discharging area which are sequentially arranged in the conveying direction, an electron accelerator is arranged in the irradiation curing area, and a plurality of shielding assemblies are arranged in the feeding area and the discharging area, each shielding assembly comprises a shielding plate fixed on the inner wall of the shielding cover and a shielding door used for separating the conveying channel together with the shielding plate, an opening for allowing the plates to pass through is formed in the shielding plate, the shielding door is arranged to be capable of rotating relative to the shielding plate, and a reset mechanism is arranged on the shielding door. According to the electron beam curing shielding device, on the basis of ensuring the shielding effect and the gas environment, the production efficiency of a production line is improved.

The invention provides a totally closed alpha-energy spectrum measurement system. According to the measurement system, a sample treatment table, a special muffle furnace, an alpha sample vacuum chamber and a charge-sensitive preamplifier are arranged in a stainless steel glove box; a bias power supply, a computer and a data acquisition processor are arranged in another measurement operation room; information transmission between the bias power supply and data acquisition processor in the measurement operation room and the alpha sample vacuum chamber and the charge-sensitive preamplifier in the stainless steel glove box are achieved through cable connection. According to the totally closed alpha-energy spectrum measurement system, the operations of preparing, transferring and measuring samples are finished in a completely closed environment, and instrument control and data processing are operated remotely; shells and components of various parts in the glove box are made of high-performance and acid-corrosion-resistant materials, so that the service life is greatly prolonged. The totally closed alpha-energy spectrum measurement system is convenient to operate, low in noise and stable in performance and is suitable for alpha-energy spectrum measurement of highly toxic and highly radioactive special samples.

The invention relates to a close range radioactive ray-induced cancer cell apoptosis model device and belongs to the technical field of biomedical experiment devices. The close range radioactive ray-induced cancer cell apoptosis model device has the advantages of simple structure, stability, reliability, good repeatability, use convenience and low cost. The device comprises a housing and a tray is arranged above the housing. The device is characterized in that particle clamps are radially arranged above the tray from the center to the periphery, a sleeve is arranged in the center in the housing corresponding to the lower part of the tray, an ejector rod is arranged in the sleeve, the upper end of the ejector rod corresponding to particles is radially provided with shield plates and an ejector rotation device is arranged at the lower end in the housing corresponding to the ejector rod.

The invention discloses a substrate integrated waveguide bandpass filter. It includes a first metal layer, a dielectric layer and a second metal layer stacked from top to bottom; the above-mentioned first metal layer includes a first transmission line main line, a second transmission main line, a first gradual transition line, a second gradual transition line and The first metal plate, the above-mentioned first metal plate includes a first strip-shaped opening, a second strip-shaped opening, a third strip-shaped opening, a fourth strip-shaped opening, a fifth strip-shaped opening, a first circular opening and a second circular opening; the dielectric layer includes a dielectric substrate, a first metallized through hole, a second metallized through hole, a first metallized groove, a second metallized groove, a third metallized groove, and a second metallized groove. For the fourth metallization slot and the fifth metallization slot, the above-mentioned second metal layer includes a dummy metal plate. The beneficial effect of the invention is that: the insertion loss caused by radiation is reduced, the limitation of processing technology is avoided, and the substrate integrated filter can be applied to high frequency band filtering.

The invention discloses X-RAY detection equipment capable of realizing microscopic CT (Computed Tomography). The X-RAY detection equipment comprises an objective table mechanism, a first lifting mechanism, a first lifting seat connected with the first lifting mechanism, a distance adjusting mechanism mounted on the first lifting seat, and an x-ray transmitting mechanism and an x-ray receiving mechanism which are connected with the distance adjusting mechanism, the objective table mechanism is located between the x-ray transmitting mechanism and the x-ray receiving mechanism, and the objective table mechanism comprises a first translation mechanism, a rotating mechanism connected with the first translation mechanism, and a bearing table connected with the rotating mechanism and used for placing a to-be-tested product; and a positioning navigation mechanism is further arranged above the bearing table. According to the method, the defects on the product plane can be detected, 3D reconstruction can be realized through X-ray cone beam CT scanning, the defects in the product and the spatial positions of the defects can be more intuitively seen, and the universality is high.

The invention relates to a close range radioactive ray-induced cancer cell apoptosis model device and belongs to the technical field of biomedical experiment devices. The close range radioactive ray-induced cancer cell apoptosis model device has the advantages of simple structure, stability, reliability, good repeatability, use convenience and low cost. The device comprises a housing and a tray is arranged above the housing. The device is characterized in that particle clamps are radially arranged above the tray from the center to the periphery, a sleeve is arranged in the center in the housing corresponding to the lower part of the tray, an ejector rod is arranged in the sleeve, the upper end of the ejector rod corresponding to particles is radially provided with shield plates and an ejector rotation device is arranged at the lower end in the housing corresponding to the ejector rod.

The embodiment of the invention discloses a radioactive sample storage device, the radioactive sample storage device comprises a main body, a cover body and a plurality of plug bodies; themain body has an upper opening, a plurality of sample accommodating cavities having upper openings are defined in the main body, the sample accommodating cavities are used for accommodating radioactive samples; the cover body is configured to operably cover the upper part of the main body so as to open or close the upper opening of the main body; and each plug body is arranged at the opening in the upper part of the corresponding sample accommodating cavity so as to seal the corresponding sample accommodating cavity. The radioactive sample storage device can store a plurality of radioactive samples at the same time, and radiation leakage caused by the fact that the plug body is separated from the upper opening of the sample containing cavity under the unexpected condition due to misoperation can be avoided.

The invention discloses an environmental protection device capable of eliminating a radiation hazard of nuclear magnetic resonance to a human body. The environmental protection device comprises a device body, conductive rubber and a metal mesh, wherein a head cover is arranged at the upper part of the device body; a baffle plate is arranged at a side part of the head cover; the conductive rubber is arranged at an end side of the baffle plate; a radiation detection instrument is arranged at the side part of the device body; an indicator light is arranged at the side part of the radiation detection instrument; a through hole is formed in the side part of the device body; the metal mesh is arranged in the through hole; a clamping block is clamped at the outer side of the through hole; a filter is arranged at the lower part of the through hole; and a conductive paint is painted on an upper wall of the device body. According to the environmental protection device, the radiation quantity isdetected through the radiation detection instrument and indicated through the indicator light, the through hole and a connection gap are fully and effectively shielded through the conductive rubber and the metal mesh, so that the shielding efficiency is fully and effectively improved and the radiation damage to a user is reduced.

The invention relates to a radiopharmaceutical drug extraction and delivery device for chest tumor examination. The device comprises a fully enclosed drug extraction operation platform and injection platform, wherein the drug extraction operation platform is provided with a lead can conveying device and drug extraction equipment, the drug extraction operation platform is communicated with the injection platform through a conveying passage and a conveying device, the conveying device is arranged in the conveying passage, the fully enclosed operation platform and injection platform and the conveying passage effectively isolate a radioactive drug from the outside, and the drug extraction operation can be achieved without manual operation through the arrangement of the drug extraction equipment, thereby reducing the contact between a medical worker and the radioactive drug, achieving the protection of the medical worker, improving the protection effect, and reducing the radiation damage ofthe radioactive drug to the medical worker.

The invention belongs to the technical field of medical equipment, and particularly discloses a medical anti-radiation controllable isolation layer of the radiology department. The medical anti-radiation controllable isolation layer of the radiology department comprises a door plate, a pulling module, electromagnetic locks, a dimension detector and LED indicating lamps; a first groove are formed in a wall at the right side, the first groove is provided with the door plate, the right side of the door plate is provided with the pulling module, the pulling module is used for pulling the door plate, and by controlling the opening and closing of different doors, people with different body shapes can enter the department of the radiology department; a second groove is formed in a wall at the left side, the electromagnetic locks are installed in the second groove, and the electromagnetic locks can be used for sucking the door plate; and the outer surface of the door plate is provided with thedimension detector and the LED indicating lamps, the dimension detector is used for measuring the height and width of patients, when the door plate is closed, the LED indicator lamps lights to form astriking radiation sign, when the door plate is opened, an indicator lamp above the head of a patient lights to remind the patient to prevent head collision. The medical anti-radiation controllable isolation layer of the radiology department is mainly used for reducing the radiation to the outside when the department door of the radiology department is opened.

The invention relates to a needle taking device of a radiopharmaceutical medicine pumping and delivering device, which comprises a needle taking manipulator, a needle taking cylinder, a needle takingswing rod, a needle taking upright post and a needle taking swing cylinder, wherein the needle taking upright post is arranged on an operation bottom plate, the upper end of the needle taking uprightpost is provided with the needle taking swing rod, one end of the needle taking swing rod is in mutual rotation connection with the needle taking upright post, the other end of the needle taking swingrod is provided with the needle taking cylinder, a plunger rod of the needle taking cylinder is provided with the needle taking manipulator, the operation bottom plate is provided with a supporting block for supporting the needle taking swing cylinder, the plunger rod of the needletaking swing cylinder is hinged with the middle part of the needletaking swing rod, and the needletaking swing cylinder drives the needletaking swing rod to swing. The needle taking device can automatically take out an injector from a conveying device and move the injector to be right above a medicine drawing through hole so as to prepare for automatic medicine drawing of the medicine drawing device; and the needle taking device is mechanically operated without manual operation.

The invention discloses a radiation-proof plant room door which comprises a frame rectangular pipe, stainless steel face plates and lead plates. The lead plates are closely attached to the front end face and the rear end face of the frame rectangular pipe, the stainless steel face plates are arranged outside the lead plates, and a lining plate is arranged between each lead plate and the corresponding stainless steel face plate. The section of each stainless steel beveled cover edge is in a concave shape, and the outer edges of the frame rectangular pipe, the stainless steel face plates and the lead plates are in ordered arrangement and wrapped in the stainless steel beveled cover edges and closely contact with the stainless steel beveled cover edges. The radiation-proof plant room door further comprises a driving device used for driving the radiation-proof plant room door to open and close. In conclusion, the radiation-proof plant room door is capable of effectively preventing various radiations, X-rays, Y-rays and the like and is simple in structure, low in cost and easy to implement.

The invention relates to the field of security inspection equipment, in particular to equipment for performing security detection by utilizing X rays. The equipment comprises a machine body and detecting cavities which are arranged in the machine body and communicates with left and right sides of the machine body, wherein a rotary frame is rotatably arranged in the detecting cavities; a power connection ring is arranged on the middle position of the rotary frame; slide slots are formed in four brackets arranged on the rotary frame; power connection rods are arranged in the slide slots in a sliding mode; first springs are arranged between the power connection rods and the wall bodies of the slide slots; and the power connection rods are electrically connected to the power connection rings through power connection lines. The equipment for performing security detection by utilizing the X rays provided by the invention can conveniently utilize the X rays to perform security detection on carried objects, solves the problem that a conventional security detection equipment cannot enter an equipment detection cavity while conveying relatively light objects, can lift objects with relativelygreat weight in an assisted mode, is very convenient in use, completely seals an X-ray irradiation area, and avoids radiation leakage.