225results about "Shielded cells" patented technology

Disclosed is a calibrator device designed to measure the activity of a radio element, including: an ionization chamber, intended to receive the radio element; and electronic / computer system for controlling the operation of the calibrator device. The electronic / computer system includes voice control, which include: at least one microphone capable of capturing a voice instruction emitted by the operator; a recognition module designed to convert the voice instruction into a request that can be executed by the electronic / computer system; and a control module designed to control the execution of the request by the electronic / computer system.

A gas-tight transfer device for transferring an object from a flexible container (80) containing the object (21) to a chamber, the device comprising: a chamber flange (2); a container flange (3) defining a transfer channel (30) connecting a feed end (31) and a discharge end (32) of the container flange (3); the container (80) comprises a wall (82) which extends at least partially into the transfer channel (30) and is in fluid-tight connection with the container flange (3) by clamping the wall (82) against a clamping surface fixed to the container flange (3) by means of a clamping force applied in a substantially axial direction.

The invention provides a radiation shielding device and a neutron capture treatment system. The radiation shielding device comprises a shielding body, a base part and a driving device, the shielding body is movably arranged on the base part; the shielding body is provided with a first position and a second position, the first position is the position where the shielding body shields the beam outlet, and the second position is the position where at least part of the shielding body does not shield the beam outlet; the driving device is connected with the shielding body, and the shielding body can be switched between a first position and a second position through the driving device. According to the technical scheme, after a patient finishes irradiation and before a worker enters a treatment room to carry out a subsequent operation process, the position of the shielding body can be adjusted and controlled to shield the beam outlet, so that the patient and the worker are prevented from being radiated, activation of other equipment in the treatment room is avoided, and the treatment efficiency is improved. And the personal safety of patients and workers and the normal operation of equipment are ensured.

According to the ventilation system of the nuclear material production line and the nuclear material production line workshop, air exhaust equipment and air supply equipment in the system are used for conveying fresh air to a sealed area outside a target area, and the target area is the sealed area with the highest risk level; the air supply equipment is further used for extracting air from the adjacent sealing area with the risk grade lower than that of the target area and conveying the air into the target area so as to form directional airflow flowing from the low-risk area to the high-risk area. And the exhaust equipment is used for exhausting air in each sealing area. The control device is electrically connected with the air supply equipment and the air exhaust equipment and used for adjusting the air supply amount and the air exhaust amount of all the sealing areas so that the negative pressure gradient can be maintained among the multiple sealing areas, and the negative pressure in the target area is higher than the negative pressure in the adjacent sealing areas. The ventilation system can effectively avoid radioactive aerosol leakage in a high-risk area.

The invention relates to a door arrangement (1) for a door having a first closed space, the arrangement allowing a sealed connection between the first closed space and a second closed space, and comprising a flange (2) defining an opening plane and a passage axis (O) perpendicular to the opening plane, a door (4) pivotably mounted on the flange (2), and a chute (10) for a discharge assembly movable between a discharge position in which the chute is positioned opposite a passage opening and a position in which the chute is spaced apart from the passage opening, the chute being attached to the flange (2) by means of a first double-hinged connection mechanism (11) comprising a first hinge (12) arranged to allow rotational movement about an axis (C) parallel to the passage axis (O) of the passage opening, and a second hinge (13) arranged to allow rotational movement about an axis (D) perpendicular to the passage axis (O) of the passage opening.

The subject of the invention is a containment shell (1) comprising a wall (10) defining a space (12) made of a material of the concrete type and at least one observation module (30) comprising at least one window (33) arranged in an opening (32) of the wall (10), said window comprising a frame (36) in which is housed at least one optical block (34) providing protection against high-energy and / or neutron radiation, said frame fitting in the opening (32), the observation module further comprising a protection element (37) comprising a sash (38) carrying a glass (39) and arranged to close the opening at a surface inside the shell, said observation module thus comprising at least one interface (I) between two surfaces (S), characterized in that it further comprises at least one sealing system (40) arranged at the at least one interface (I).

This utility model discloses a partition device for handling nuclear waste in nuclear power plants, including a left sealing plate and a right sealing plate. The left and right sealing plates are respectively connected to a rotating shaft and then to a left connecting rod I and a right connecting rod I respectively via pins. The left and right connecting rods I are respectively connected to rocker arms A and B, which are linked to each other via left and right connecting rods II. The rocker arms are connected to a spindle, and the other end of the spindle is connected to a corner box. The driving gear of corner box A is connected to the spindle, and the driven gear is connected to a transmission shaft. The transmission shaft is connected to the driving gear of corner box B, and the driven gear of corner box B is connected to the drive shaft of a reduction gearbox. The upper and lower ends of the device are connected to pipes via fasteners. This utility model is suitable for the safe hoisting of irregularly shaped objects in nuclear facilities, and has the comprehensive advantages of precise angle adjustment, dynamic sealing protection, and optimized working space. Furthermore, all components are highly reliable, have a long service life, and possess characteristics such as shock resistance and radiation resistance.

The present disclosure relates to the field of radiation imaging for testing and / or quality assurance of items (6) in a variety of industrial applications. The radiation imaging system (1) for inspecting a plurality of items (6) comprises a radiation imaging device. a shielded enclosure (31), at least one access port (33). and at least one item handling apparatus (10) with a movable manipulator (4) configured for detachably coupling and releasing a plurality of mounts (5) suspended on a retaining element (36) arranged in the access port (33). and positioning the plurality items (6) mounted on the mounts (5) within a projection space (23) of the radiation imaging device.

The present disclosure relates to a system (1) for a sealed junction, comprising: a wall (2); a door (3); a locking device (5); and a safety device.

This invention provides a method for reinforcing existing underground shelters and existing underground structures using chemical grout injection, enabling their effective use as underground shelters. [Solution] The method for reinforcing an existing underground structure 11 according to the present invention is characterized by performing ground improvement using a chemical grout injection method on the ground 1 on the outer perimeter of the existing underground structure 11, thereby reducing the saturation of the ground 1 and making it unsaturated, and constructing a buffer body 12 on the outer perimeter of the existing underground structure 11, thereby attenuating energy acting from the outside. Furthermore, if the existing underground structure 11 is an existing underground shelter, a buffer body 12 made of reinforced ground can be formed on the outer perimeter of the underground shelter by chemical grout injection, thereby improving the durability, strength, and safety of the underground shelter against, for example, incoming ballistic missiles.

A ruggedizing apparatus for electronic equipment in a spacecraft is provided that can achieve both a radiation shielding effect and a heat-dissipation effect. The ruggedizing apparatus includes: a pressure vessel that is filled with a coolant and places at least a heat-generating electronic circuit of the electronic equipment within the pressure vessel, wherein the heat-generating electronic circuit is immersed in the coolant; and a forced liquid-flow generator placed within the pressure vessel, wherein the forced liquid-flow generator causes the coolant on the heat-generating electronic circuit to move away from the heat-generating electronic circuit.

An x-ray shield 230 for a semiconductor wafer x-ray inspection system, where the shield comprises, a frame 240 defining an internal area and an x-ray shielding material 250 which is supported within t

The present invention relates to a dry storage module and a system comprising the same, the dry storage module having an improved mounting manner of a gas outlet and a cylinder body in a dry storage module for spent nuclear fuel of a vertical light water reactor, the dry storage module comprising: a housing forming a hexahedron-shaped accommodation space; a plurality of storage parts which are arranged in two rows in the accommodation space, are used for storing spent nuclear fuel, and extend for a long distance respectively; a hexahedron-shaped module part for accommodating the storage part; the storage tank is filled with spent nuclear fuel; a cartridge body surrounding the tank; a cartridge holder for attaching / detaching the cartridge body to / from the module part; the air inlet is formed in the side of the upper part of the shell; the air outlet is formed in the lower part of the shell; and shield grids provided at the respective inflow port and outflow port.

A negative pressure centralized monitoring device for a radioactive control area of a nuclear power plant, comprising at least one measurement member (l), a buffer assembly(2), and a pipeline (3). The pipeline (3) comprises a main pipe(31) and at least one branch pipe (32), one end of each measurement member (l)is connected to a control area by means of a branch pipe (32), and the other end of each measurement member (l) is connected to the main pipe (31) by means of the branch pipe (32): the buffer assembly (2) is disposed on the main pipe(31); the measurement member (l) and the buffer assembly (2)are arranged in rooms, one end of the main pipe (31) is connected to the outside: the measurement member (l) is used for measuring the difference between the pressure of the control area and the pressure of the outside: and the buffer assembly (2) is used for filtering out the fluctuation of the external atmosphere. According to the device, the fluctuation of the external atmosphere can be filtered out, and the measurement member (l) is prevented from being affected by the disturbance from the external environment, so that the accuracy of the measurement member (l)is improved, and a ventilation and purification system can accurately adjust the air supply amount and the air intake amount. The stable operation of the ventilation and purification system is guaranteed, and the negative pressure in the control area is kept stable: and additionally, the number of holes punched in the outer wall of the control area can be reduced, thereby reducing the influence of punching holes in the outer wall on the sealing performance of the control area.

A radiographic inspection device and a method of inspecting an object are provided. The radiographic inspection device includes a support frame, where an inspection space applicable to inspect an object is formed within the support frame, and the inspection space has a first opening connecting to an outside; a transfer mechanism applicable to carry the object to move through the inspection space; a shielding curtain mounted at the first opening; and a driving mechanism mounted on the support frame and configured to drive the shielding curtain to move, so as to open or close the first opening. Since the driving mechanism drives the shielding curtain to rise or fall, it is possible to ensure that the lightweight object for inspection may smoothly enter the inspection space for subsequent radiographic scanning.

The storage cabinet for the radiology department comprises a cabinet body, isolation fixing frames and an isolation cover plate, the two isolation fixing frames are fixedly installed in an inner cavity of the cabinet body, a plurality of circular grooves are evenly formed in the isolation fixing frames, and a plurality of second springs are evenly installed on the bottom faces of the circular grooves. The movable ends of the second springs are connected and provided with clamping supporting plates, a plurality of sets of guide sliding grooves are symmetrically formed in the inner wall of the cabinet body, guide sliding blocks are symmetrically and fixedly installed on the two sides of the three isolation cover plates, the guide sliding blocks are clamped and embedded in the guide sliding grooves, and a plurality of installation bases are evenly and fixedly installed on the bottom faces of the two isolation cover plates. And a plurality of first springs are uniformly mounted on the bottom surface of the mounting seat. The device has the advantages that a stored radioactive source lead tank can be conveniently clamped and fixed, the radioactive source lead tank is prevented from toppling over when being vibrated, when the radioactive source lead tank is taken out for use, the lead tank can be automatically ejected out of a part of an inner cavity of the circular groove, a user can conveniently take out the lead tank in a clamping mode, use is more convenient, and practicability is higher.

The present invention relates to a radiation shield (1) for protecting an operator from ionizing radiation, the shield (1) comprising a front wall structure (2) made of one or more radiation-resistant materials and a side wall structure (3) made of one or more radiation-resistant materials, which are connected to each other at a vertical or substantially vertical corner edge (4), the shield (1) comprising a base (5) equipped with wheels (6) resting on the ground. Furthermore, according to the invention, the shield (1) is characterized in that the front wall structure (2) comprises a lower portion (21) and an upper portion (22) movable relative to each other, the upper portion (22) of the front wall structure (2) being mounted to pivot about a vertical or substantially vertical pivot (7) in the region of the corner edge (4).

The present disclosure relates to a connection port (1) for a tight transfer cell, this port comprising a flange (2) extending about a main axis (AX), this flange (2) comprising an outer face (7) and an inner face (8) which is equipped with a door (3) movable between an open position and a closed position wherein this door (3) seals a central opening (6) of the flange, and a slide (14) rigidly secured to the door (3) and passing through the flange (2), the slide (14) being connected to the flange (2) by a kinematic connection with a parallel axis (AX1) to the main axis (AX). The kinematic connection comprises a slide connection portion for applying a translational movement to the slide (14) along the axis (AX1) on a first displacement part, and a helical connection portion for applying a helical movement to the slide (14) about the axis (AX1) on a second displacement portion.

To install a leakage prevention device before a wall material is installed.SOLUTION: A leakage preventing device 10 prevents radiation leakage from an open hole 11h in a ceiling wall 11 by covering the open hole 11h from a rear side of the ceiling wall 11. The leakage preventing device 10 includes: a main body part 20 which is formed into a box shape with a closed bottom including a cylindrical peripheral wall 21 having an opening 25 sized to surround the open hole 11h at a tip 21a, and a bottom wall 22 facing the opening 25 and formed of a material preventing radiation leakage; and a fitting part 50 located on closer to the bottom wall 22 side than the tip 21a of the peripheral wall 21 and attached to a second long member 13b in which the ceiling wall 11 is fixed. The fitting part 50 can be attached to the second long material 13b with the tip 21a of the peripheral wall 21 in contact with a back side surface 11b.SELECTED DRAWING: Figure 5

The present disclosure, in an embodiment, is a facility that includes a device configured to generate a beam having an energy range of 5 MeV to 500 MeV, a first radiation shielding wall surrounding the device, a second radiation shielding wall surrounding the first radiation shielding wall, radiation shielding fill material positioned between the first radiation shielding wall and the second radiation shielding wall forming a first barrier. In embodiments, the radiation shielding fill material includes at least fifty percent by weight of an element having an atomic number from 12 to 83, and a thickness of the first barrier is 0.5 meter to 6 meters.

To provide a Tsar-class hydrogen bomb response evacuation system, temporary evacuation structures, a nuclear weapon attack deterrence defense system, and a Tsar-class hydrogen bomb assuming system that can mitigate damage, assuming a direct hit on Tokyo's 23 wards by a Tsar-class hydrogen bomb.SOLUTION: The system includes a preparedness ranking table and temporary evacuation structures 0 to 2 based on the ranking table. The preparedness ranking table is made up of a response readiness depending on the distance from the hypothetical hypocenter of a tsar hydrogen bomb, according to a rank corresponding to the expected time of a tsar hydrogen bomb fall and the expected degree of damage depending on the distance from the hypothetical hypocenter. Temporary evacuation structures 1 and 2, located more than 100 km from the hypothetical hypocenter of a tsar hydrogen bomb, are reinforced concrete buildings with a ceiling made of lead sheet 100 with a filter, and store daily necessities, at least one week's worth of limited water and food, and radiation-resistant protective clothing.SELECTED DRAWING: Figure 1

A cell flange (200) comprising an annular flange body (201) having a main axis (AX) and provided with means for fastening it to a wall (100) of a cell, the flange body (201) defining an internal passage (202), the cell flange (200) having a cell door (15) capable of selectively closing the internal passage (202), the cell flange (200) also comprising a ring (210) mounted in rotation relative to the flange body (201) about the main axis (AX) and comprising a set of external lugs (212-215) which project radially from an inner periphery (216) of the ring (210) and which are capable of forming an external bayonet connection, the cell door (15) comprising a fixed portion (150) and a movable portion (160) which are mounted concentrically in rotation with respect to one another about the main axis (AX), the movable portion (160) comprising a set of internal lugs (161-164) capable of forming an internal bayonet connection.

The invention belongs to the technical field of radioactive hot cells, particularly relates to a radioactive hot cell of an intelligent control system and a working method of the radioactive hot cell, and aims to solve the problem that an existing radioactive hot cell lacks cleaning measures for medicine residues scattered on a tray. The inner wall of the notch is fixedly connected with an inner container, the inner wall of the bottom of the inner container is fixedly connected with an inner container tray, and the inner wall of the notch is connected with an isolation door through a hinge. According to the radioactive hot cell of the intelligent control system and the working method of the radioactive hot cell, after the radioactive drugs are prepared, drug residues scattered on the surface of the inner container tray in the hot cell body in a closed state can be cleaned in time; therefore, the influence of radioactive residues in the hot chamber body on subsequent medicine preparation is avoided, the harm of the residues to equipment or workers is reduced, the purity of the prepared medicine is improved, and the safety is improved.

The utility model relates to an anti-radiation operating room which comprises a wall anti-radiation structure and a ground anti-radiation structure, and the operating room is defined by the wall anti-radiation structure, the ground anti-radiation structure and the ground anti-radiation structure of an upper floor. The wall anti-radiation structure comprises a keel frame, an anti-radiation lead plate, a fireproof rock wool layer and a gypsum board, the keel frame is a wall body, and the inner face of the keel frame is sequentially connected with the anti-radiation lead plate, the fireproof rock wool layer and the gypsum board; the ground anti-radiation structure comprises a floor and a barium sulfate cement layer, the barium sulfate cement layer is arranged on the floor, the inner wall of the operating room is subjected to anti-radiation protection in all directions, the fireproof rock wool layer has a fireproof function, and the gypsum board has a sound insulation effect.

The invention relates to the technical field of radiation protection, and particularly discloses a lead-free ray protection plate partition wall which comprises a protection plate unit, and the protection plate unit comprises two outer display layers and a lining layer clamped between the two outer display layers; the top of the wall body is provided with a bendable top layer plate, and the adjacent protection plate units are connected through an outer side plate. According to the invention, the protective cover which can be detached in a segmented manner and the bendable top layer plate are arranged, and the extension blocks which can be flexibly adjusted are matched, so that the wall body can be smoothly bent at any radian and precisely shaped on site according to actual requirements; a traditional prefabricated right-angle component is completely replaced, the adaptability of the partition wall to complex and non-standard space layout is greatly improved, the risk of radiation leakage at the corner is fundamentally eliminated by forming continuous and seamless arc transition, and unification of the protection performance and the design freedom degree is achieved.

The invention relates to a device for sealed transfer between two enclosed volumes, comprising a first flange and a second flange (10) which define a passage opening into the enclosed volumes and can be secured to each other by a first bayonet connection, a first door and a second door (11) which close off the passage openings and can be secured to each other by a second bayonet connection, the first door (11) being hingedly mounted on the first flange (10) by means of a hinge (4) comprising a hinge pin, characterized in that the device comprises an external manual control lever (9) which is secured to a rotary pin penetrating the first flange (10) and which is coupled to the hinge pin in such a way that the actuation of the control lever (9) drives the hinge pin, thus opening or closing the first door (11).

The utility model discloses a self-shielding electron accelerator, which relates to the technical field of electron accelerators, solves the problems of poor anti-radiation effect and inconvenience in assembly and disassembly of the existing device, and adopts the following scheme that the top surface of a vertical plate is provided with a side plate of which the specification is matched with that of the vertical plate. Through the arrangement of the side plates, the water tank and the anti-radiation shielding cloth, the side plates and the top plate made of steel plates can shield radiation on the side faces and the top face, the anti-radiation shielding cloth can shield radiation on the left side and the right side, the water tank on the bottom face can absorb a large amount of radiation, and the radiation shielding effect is good; meanwhile, through the arrangement of the mounting holes A, the threaded holes A and the mounting holes C, the mounting holes A and the mounting holes B can facilitate the mounting of the bottom plate and the vertical plate, the threaded holes A and the threaded holes B facilitate the mounting of the side plate, the mounting holes C and the mounting holes D facilitate the mounting of the top plate, the mounting and dismounting are simple and convenient, and the use convenience is improved.

The utility model relates to glove box technical field discloses a kind of anti-radiation negative pressure glove box, including glove box main body, box seat and first purification group, the glove box main body bottom is fixedly connected at the box seat top, the first purification group is located in the box seat inside, the first purification group includes prefiltering box, adsorption tank and anti-radiation filter box, the adsorption tank top is equipped with heating tank, the adsorption tank top integrally connected with ventilation pipe, the ventilation pipe top is fixedly connected in the heating tank bottom, the utility model is closed by control valve and air supply pipe, and then the second T-shaped pipe at the bottom of adsorption tank is closed, so that the inside of adsorption tank is closed, start heating tank, fan and heater run, fan runs and generates suction, external air is sucked into heating tank to form wind body, wind body passes through heater and drives heat to enter adsorption tank through ventilation pipe, and active carbon layer is dried.

The utility model relates to the technical field of nuclear emergency rescue, and discloses a body surface radioactive decontamination shelter device, which comprises a shelter body, an outer shelter door and a fresh air module, the shelter body comprises a cabin, the cabin comprises a changing room, a leaching room, a body drying room and a reinspection room which are communicated in sequence, the outer shelter door is movably arranged on the shelter body, and the fresh air module is arranged on the outer shelter door. The outer cabin door is used for closing or opening the cabin body, the fresh air module is arranged on the cabin body, an air inlet of the fresh air module communicates with the outside, and an air outlet of the fresh air module is formed in the reinspection room. According to the body surface radioactive decontamination shelter equipment, the body surface of a radioactive contaminated person can be decontaminated, and radioactive damage to the person caused by radioactive substances in the air in the decontamination process can be avoided.

The utility model discloses a radioactive source assembly concrete shielding room which comprises isolation supporting layers and isolation anti-radiation layers arranged in the isolation supporting layers, a plurality of areas are defined by the isolation supporting layers, every two adjacent areas are separated through the isolation supporting layers and the isolation anti-radiation layers, and the isolation anti-radiation layers are arranged in the isolation supporting layers. A manual closing assembly is arranged on the side edge of the isolation supporting layer used for isolation in a sliding mode, the manual closing assembly is used for sealing an isolation area, and the isolation supporting layer and the isolation anti-radiation layer are arranged in the manual closing assembly; according to the anti-radiation device, the anti-radiation plate, the anti-radiation auxiliary plate, the inclined groove and the inclined rod are prepared by taking lead as a raw material, and the isolation anti-radiation layer is arranged in the isolation supporting layer, so that the isolation supporting layer and the isolation anti-radiation layer are combined for use, and the anti-radiation device has the guiding and stable supporting functions, and also has the anti-radiation function based on the anti-radiation performance of lead; and the anti-radiation intensity of the shielding room is improved.