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.

An ionizing radiation shielding panel comprising a core layer, a first layer on a first side of the core layer and a second layer on a second side of the core layer, opposite to the first side. The core layer comprises radiation attenuation material which may be particles of barite. The first and second layers each comprise a permeable reinforcement structure and each of the first, second and core layers are permeated with a binder. In the construction of the panel, the binder is infected into a mould containing the other constituents of the panel. The ionizing radiation shielding panel can be used in the housing of an x-ray inspection apparatus.

An electron block frame pouring fixture, and a method of using the fixture, the fixture including a base member having a recessed portion surrounded on each side, the recessed portion configured to receive an electron block frame therein, and a plurality of clamp members connected to the base member proximate each of the respective sides of the recessed portion, the clamp members being configured to be selectively actuated to press a received electron block frame downward into the recessed portion, wherein the recessed portion is configured to prevent lateral movement of the received electron block frame.

An electron block frame pouring fixture, and a method of using the fixture, the fixture including a base member having a recessed portion surrounded on each side, the recessed portion configured to receive an electron block frame therein, and a plurality of clamp members connected to the base member proximate each of the respective sides of the recessed portion, the clamp members being configured to be selectively actuated to press a received electron block frame downward into the recessed portion, wherein the recessed portion is configured to prevent lateral movement of the received electron block frame.

A package for transporting and/or storing radioactive materials, comprises a cavity for housing radioactive materials, as well as a radiological protection device comprising radiological protection elements arranged in an annular space, at least two successive radiological protection elements along a given direction of the annular space, from a longitudinal direction and a circumferential direction, and a locking member designed to limit and/or prevent the distancing of the two radiological protection elements relative to one another in a given direction.

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.

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.

A package for transporting and/or storing radioactive materials, comprises a cavity for housing radioactive materials, as well as a radiological protection device comprising radiological protection elements arranged in an annular space, at least two successive radiological protection elements along a given direction of the annular space, from a longitudinal direction and a circumferential direction, and a locking member designed to limit and/or prevent the distancing of the two radiological protection elements relative to one another in a given direction.

A nuclear reactor core comprising fissile material is surrounded by a core former. The core former comprises one or more single-piece annular rings wherein each single-piece annular ring comprises neutron-reflecting material. In some embodiments the core former comprises a stack of two or more such single-piece annular rings. In some embodiments the stack of single-piece annular rings is self-supporting. In some embodiments the stack of single-piece annular rings does not include welds or fasteners securing adjacent single-piece annular rings together. A core basket may contain the nuclear reactor core and the core former, and in some embodiments an annular gap is defined between the core former and the core basket. In some embodiments the core former does not include welds and does not include fasteners.

A nuclear reactor core comprising fissile material is surrounded by a core former. The core former comprises one or more single-piece annular rings wherein each single-piece annular ring comprises neutron-reflecting material. In some embodiments the core former comprises a stack of two or more such single-piece annular rings. In some embodiments the stack of single-piece annular rings is self-supporting. In some embodiments the stack of single-piece annular rings does not include welds or fasteners securing adjacent single-piece annular rings together. A core basket may contain the nuclear reactor core and the core former, and in some embodiments an annular gap is defined between the core former and the core basket. In some embodiments the core former does not include welds and does not include fasteners.