37 results about "Nuclear weapon" patented technology

In one example, a method of examining a container is disclosed comprising detecting a potential threat within contents of a container using radiation scanning and disabling the potential threat with radiation. In another example, a method of examining a container is disclosed comprising scanning at least a portion of the container with a first radiation beam, detecting radiation interacting with contents of the container, identifying a potential threat contained based, at least in part, on the detected radiation, and disabling the potential threat with a dose of radiation from a second radiation beam. The potential threat may be a nuclear, chemical, and/or biological weapon, for example. Chemical and/or biological detectors may also be provided. The threat and/or electronics associated with the threat, may be disabled. Systems are also disclosed.

A system and method for suppressing EMP-induced electrical system voltage surges due to detonation of a nuclear weapon, the EMP comprising E1, E2, and E3 component pulses. A plurality of shunting assemblies, each including MOVs, gas discharge tubes, other mechanical, electrical and ionization discharge devices and combinations thereof, detect and react to the overvoltage according to timing parameters associated with each of the E1, E2, and E3 components and shunt the overvoltage to decrease to under a predetermined allowable level.

The invention relates to a structural design for light-water-moderated nuclear reactors using a thorium fuel, in particular to the structural design for caseless fuel assemblies constituting the cores of water moderated power-producing reactors, such as a WWER-1000 reactor. A thorium fuel in a breeding module together with a conventional reactor fuel containing unshaped enriched uranium or power producing plutonium in a driver module are burned in the core of a nuclear reactor which comprises a fuel assembly consisting of a driver and breeding modules. The driver module comprises a bundle of three leaf-shaped fuel cells forming screw spacer ribs. The driver and breeding modules can be coupled to each other by means of a spigot joint or be free of a rigid mechanical coupling. The inventive structural design of the fuel assembly provides the total compatibility thereof with existing fuel assemblies used in the WWER-1000 reactors. The fact that the two-section fuel assembly can be disassembled makes it possible to individually reload the driver module.

The invention is a gamma ray detector that locates a source, both horizontally and vertically. The detector comprises a tubular shield surrounded by scintillator panels. Gammas incident from one side can fully strike the scintillator facing the source, but are blocked from reaching the scintillators on the opposite side of the shield. The scintillator counting rates thus indicate the lateral direction of the source. By iteratively rotating toward the highest-counting scintillator, the detector converges to the source. An additional, central detector can be mounted within the tubular shield. When analyzed with the outer scintillators, the central detector determines the overall angular separation between the source and the detector axis, thereby locating the source in two dimensions automatically. The invention enables rapid detection and precise localization of clandestine nuclear and radiological weapons, despite shielding and clutter obfuscation, while quickly passing clean loads.

The invention relates to a fuel element for a fuel assembly of a nuclear reactor. The fuel element comprises a nucleus containinga fissionable material and cladding which seals the nucleus, wherein the fuel element is provided with a multifoil contour which forms spiral ribs; and the spiral ribs comprise the fissionable material and have axially torsional intervals, and the length of each interval is 5%-20% of that of the fuel element. According to embodiments of the invention, waste which can used for manufacturing nuclear weapons cannot be generated, a novel loading and unloading system is used for a first embodiment of the invention tomaximize recycling of fuel in a seed; and the system further guarantees that used nuclear fuel cannot be used for manufacturing nuclear weapons.

A chemical, biological, radiological, and nuclear weapon detection system is disclosed that comprises an array of spatially-disparate hazardous material sensors and an array of spatially-disparate video cameras. The telemetry from the sensors and the video feed from the cameras are all fed back to a centralized system control center. When the illustrative embodiment suspects that an attack has occurred, it switches the feed from the video cameras in the vicinity of where the attack is believed to occur to a monitor. This enables the personnel who monitor the illustrative embodiment to further verify the attack.

At present, no double-head automobile is reported, the existing single-head automobile can not turn around conveniently; and when the existing single-head automobile goes wrong, the application thereof is influenced, especially for important passengers or materials, for example the transportation of a head of state, currency or nuclear weapons has quite high requirements on automobile service performance. The invention provides a double head automobile which is formed by carrying out back-forth two-way layout on two sets of various machine elements ensuring normal operation of an automobile; and if one set has technical problems or road condition problems or suffers surprise attack, the other set can substitute for operation immediately.

A device configured to detect particles from a radioactive source can localize the source in two dimension, such as the azimuthal and polar angles of the source. Embodiments of the device may comprise a hollow cylindrical or tubular array of “side” detector panels, plus a “central” detector positioned within the array, with no shield or collimator. The various side detector counting rates can indicate the azimuthal angle of the source, while the polar angle can be determined by a ratio of the side detector data divided by the central detector data. Embodiments of the directional detector device can provide greatly improved inspections, thereby detecting clandestine nuclear and radiological weapons, or other sources that are to be localized, rapidly and precisely.

A chemical, biological, radiological, and nuclear weapon detection system is disclosed that incorporates a mechanism to reduce the probability that a false alarm will be issued. In particular, the mechanism causes an alarm to be triggered when the amount of a hazardous material reaches a threshold, but changes the threshold based, at least in part, on environmental (e.g., meteorological, etc.) characteristics (e.g., whether is it precipitating or not, whether it is sunny or not, etc) that effect the efficacy of a chemical, biological, radiological, or nuclear weapon. Given that there are environmental factors that make an attack less effective, and given that terrorists are aware of this, the illustrative embodiment is less likely to issue an alarm when the environmental factors suggest that an attack is less effective, and, therefore, less likely. The illustrative embodiment accomplishes this by changing the threshold needed to issue an alarm based on one or more the environmental factors.

A method of improving the detection of nuclear weapons in cargo containers. The container moves through an imaging region. An x-ray source emits a cone beam through the imaging region and to two or more detector columns, each detector column defining a fan beam. This hardware combines (1) the use of at least two detector assemblies, (2) use of both the current method and the photon counting method to determine x-ray intensities, and (3) use of large detector elements to increase the measured x-ray intensity by a typical factor of 270. The x-ray intensity for a pixel is read by each detector assembly at the appropriate time and the resulting x-ray intensities from each detector assembly are summed. A method of detecting a nuclear weapon includes identifying the nuclear device as the area of the image wherein a high absorption area is surrounded by a lower absorption area.

The invention discloses a modular pipe hole sealing device for civil air defense projects and a use method thereof, and mainly relates to the technical field of civil air defense project pipelines andthrough-wall hole protective closing devices for the pipelines. The modular pipe hole sealing device structurally comprises a front pressing plate, a rubber pipe, sealing modules, a rear pressing plate, bolts and nuts. The front pressing plate and the rear pressing plate are respectively connected to two sides of the rubber pipe; the front pressing plate, the rubber pipe and the rear pressing plate are connected and fixed through multiple bolts; a rectangular fillet sealing space is formed inside the rubber pipe; multiple sealing modules are arranged inside the sealing space; and the sealingmodules comprise a plurality of solid unit rubber blocks having fan-shaped, square or rectangular-pore cross sections. The modular pipe hole sealing device disclosed by the invention has the beneficial effects that the sealing modules can be combined in various specifications, so that the modular pipe hole sealing device is wide in application range, convenient for construction, economical and environmentally friendly; a gap between the pipeline and the sealing space is effectively blocked to fulfill the aims of resisting striking of water, poisons, fire, nuclear weapons and conventional weapons; and the sealing effect is outstanding.

A missile system to avoid being recognized by satellite radar before launch, relates to a missile system; in wartime, the components of liquid or colloidal propellant missiles are transported from overpasses in a smaller size in a carrier vehicle in the shape of a civilian car The elevators are transformed into assembled missile equipment, and the elevator shafts are transformed into launching silos; satellite radar cannot distinguish carrier vehicles from civilian vehicles, nor can it Distinguishing the high-rise civilian buildings converted into silos increases the human and public opinion pressure when the enemy country preemptively uses precision, non-nuclear weapons to destroy the missile system before launch, reduces the possibility of the missile system being completely destroyed before launch, and deters the The determination of an enemy nation to pre-emptively destroy our nuclear forces.

The invention provides a multifunctional interceptor missile which can deal with the enemy military attacks and belongs to the technical field of guided missile, plane, tank, nuclear weapon and photo-electricity weapon. A double rotating inner and outer magnetic suspension is provided, so the multifunctional interceptor missile can fight according to instructions. The technical scheme of the invention is that a duality function is designed in a missile centre pipeline. In atmosphere, Tokamak device technique is adopted and a central swing ring is arranged in the missile centre pipeline. The high temperature of thousands DEG C copes with the atmosphere by the air flowing from an exterior regulating rotating ring and then the air is directionally jetted. In outer space, the function of simulating solar core of the missile centre pipeline is performed and the computer energy level is regulated so as to acquire universal natural high speed effect. The multifunctional interceptor missile is mainly used for thoroughly wipe out the enemy weapon and fighters, can realize all-dimensionally fighting by using air thermo-magnetic technique and gives no chance to enemy to strike back.