A wiping unit for a reciprocating ram includes a subunit including: a ring-shaped wipe member including a lip to press an outer peripheral surface of the ram; and an elastic ring disposed on an outer circumference of the wipe member and configured to press the lip on the outer peripheral surface of the ram. The wipe member is made of rigid resin.

A decommissioning method of biological shielding concrete of a nuclear power plant according to an exemplary embodiment includes: decommissioning a neutron detector positioning device installed to biological shielding concrete surrounding a nuclear reactor to form a plurality of penetrated parts in the biological shielding concrete; inserting a part of a cutting device into the plurality of penetrated parts; and decomposing the biological shielding concrete into a plurality of sub-concrete parts by using the cutting device.

A method of fragmentation of elements of a nuclear reactor includes placement of elements inside a cask and subsequent cutting, the cask being perforated. Each element is lowered into the cask by a full internal height of the cask using a gripper having clamping jaws. The element is intercepted at an upper edge of the cask, lifted, and positioned using video surveillance and artificial lighting so that a hydraulic cutter is directly under the clamping jaws. The element is cut at a point corresponding to a level of the upper edge of the cask, separating from the element a fragment equal to the internal height of the cask. Then the upper part of the element remaining after cutting is lowered inside the cask by the full internal height of the cask and the cutting of the element into fragments is repeated until the element is fully cut to fragments.

The invention relates to an arrangement for dismantling a container (10) which comprises a circumferential wall (20) and an opening surrounded by said wall and which has a screening cover (14) situated above the opening, and to a dismantling tool for cutting segments (42, 44, 46, 53, 56) out of the circumferential wall. The dismantling takes place in such a way that regions of the circumferential wall which have a hollow cylindrical geometry are successively cut into segments and these segments are then removed. After a segmented region having the hollow cylindrical ring geometry has been removed, an end edge of the remaining circumferential wall is available. The screening cover has a lowering device for successively lowering the screening cover onto a particular available end edge.

There is disclosed a system for dispensing granular material, comprising: a nozzle attached to a granular filler configured to couple with a trefoil filling port attached to a can for hot isostatic pressing, wherein the nozzle opens and closes via a rotary actuation. In an embodiment, the system comprises a single fill port design, such as one having a concentric, tube-in-tube design. There is also disclosed a method of filling a container with a granular material, by connecting a filling nozzle to a filling port, opening/closing the filling nozzle, attaching the filling nozzle to the filling port, aligning at least one opening of the filling nozzle with an opening in the filling port; and dispensing granular material into the container.

There is disclosed a system for dispensing granular material, comprising: a nozzle attached to a granular filler configured to couple with a trefoil filling port attached to a can for hot isostatic pressing, wherein the nozzle opens and closes via a rotary actuation. In an embodiment, the system comprises a single fill port design, such as one having a concentric, tube-in-tube design. There is also disclosed a method of filling a container with a granular material, by connecting a filling nozzle to a filling port, opening/closing the filling nozzle, attaching the filling nozzle to the filling port, aligning at least one opening of the filling nozzle with an opening in the filling port; and dispensing granular material into the container.

A system for ablating a predetermined area of a substrate material, the system comprising: a processor; a computer readable medium comprising at least one first set of program instructions associated with the ablating protocol stored thereon, the ablating protocol comprising calibration parameters; a laser head associated with a laser power controller for generating a laser pulse having a wavelength, pulse width and output level based on the calibration parameters, wherein the laser pulse is transmitted to the laser head having an optical assembly to shape and focus a beam of the laser pulse on the substrate material; wherein the laser pulse impinges the substrate material and the layer material and emits a plasma plume and sound; sensor to capture light emitted by the plasma plume and sound emitted during the ablation event; and detector means to capture emitted light of the plasma plume associated with the ablation event.

An apparatus for decommissioning heavy-water reactor facilities includes a shielding device including a drawing-out space that is mounted on the reactivity mechanism deck and communicates with one through-hole among the plurality of through-holes, a separating device that is inserted into the inside of one of the plurality of guide tubes through the drawing-out space and the one through-hole and cuts an end portion of the one guide tube connected to the calandria, and a drawing-out device that is inserted into the inside of the one guide tube through the drawing-out space and the one through-hole and supports the end portion of the one guide tube to draw out the one guide tube into the inside of the drawing-out space through the one through-hole.

Techniques for storing hazardous material include moving a storage canister sized to enclose radioactive hazardous material through an entry of a drillhole that extends into a terranean surface and is at least proximate the terranean surface; moving the storage canister from the entry through an angled drillhole portion that is coupled to the entry and deviates from true vertical at an angle; moving the storage canister from the angled drillhole portion to a hazardous material storage drillhole portion coupled to the angled drillhole portion; moving the storage canister into the hazardous material storage drillhole portion; and forming a seal in the drillhole that isolates the hazardous material storage portion of the drillhole from the entry of the drillhole.

Techniques for storing hazardous material include moving a storage canister sized to enclose radioactive hazardous material through an entry of a drillhole that extends into a terranean surface and is at least proximate the terranean surface; moving the storage canister from the entry through an angled drillhole portion that is coupled to the entry and deviates from true vertical at an angle; moving the storage canister from the angled drillhole portion to a hazardous material storage drillhole portion coupled to the angled drillhole portion; moving the storage canister into the hazardous material storage drillhole portion; and forming a seal in the drillhole that isolates the hazardous material storage portion of the drillhole from the entry of the drillhole.