Apparatus is provided for filtering particulate matter from a fluid flow pumped from a coolant pool for a nuclear reactor. The apparatus comprises a large vessel with an interior chamber in which is rotatably supported a turntable in the form of a rigid basket-like support structure on which a large number of disposable filter cartridges are removably secured. Part of the turntable is a manifold assembly for distributing contaminated fluid received from a central conduit to the inlet side of the...

A vest useful for work in radioactive environments is provided. The vest comprises (a) a garment for substantially traversing the upper body of a user while being supported by the shoulders of the user, the garment having a front portion, a rear portion, opposed side portions and opposed shoulder portions, (b) a pocket disposed on the portion of the garment for accepting and retaining a communications data transmitter with dosimeter, and (c) a pair of adjustable sleeve elements attached to the g...

Disclosed are methods for the endovascular formation of a radioactive stent using a radioactive composition. These compositions are delivered to one or more vascular sites in a mammal as a fluid composition which solidifies in vivo to form a solid, coherent radioactive mass, preferably in the form or a stent. The solidified mass stents the vascular site thereby delivering the radioactivity attendant with the composition resulting in inhibition of restenosis.

Radioactive therapeutic seeds include a substantially radiotransparent cylindrical capsule containing a radioactive isotope and, in particular embodiments, a radiopaque or MRI-visible marker. Each of the embodiments is designed to provide a substantially isotropic distribution of radiation. In one embodiment, the isotope is deposited on the outer surface of a hollow radiolucent tube and a collar is provided about a central portion of the tube. The capsule comprises two tubular halves positioned ...

A radioactive ray detecting device comprises a superconductor element formed without an underlying substrate, an oxide film formed on a surface of the superconductor element, and a superconductor thin film formed on the oxide film. The oxide film and the superconductor thin film cover substantially an entire periphery of the surface of the superconductor element. The semiconductor element may be formed of a polycrystalline material such as aluminum, or a single crystal superconductor such as one...

Ion exchange resins contaminated with a radioactive component are treated by exposing the contaminated ion exchange resins to a bound radio frequency electric field for uniformly heating them to drive off water. The dried ion exchange resins are then uniformly heated by a transversely uniform bound radio frequency electric field to a second higher temperature which chemically inactivates the functional groups of the ion exchange resins to destroy their hydrophilic property and convert them to a ...

An enclosed cutting zone for use in a nuclear power plant. The cutting zone includes a cutting zone barrier and a transfer zone. The cutting zone includes a movable submergible upper rig, an upper inflatable ring supported by the submergible rig; a lower inflatable ring supported by the submergible rig; and a means for coupling the vertically extending edges of the submergible upper rig to form a cutting zone barrier having enclosed sidewalls. The transfer zone includes a movable, submergible up...

A radioactive transition metal stent, comprising one or more transition metals, wherein the transition metal stent surface is chemically bound to a radioactive material; and a method for producing the radioactive transition metal stent wherein the radioisotope is chemically bound to, and is uniformly confined to the transition metal stent surface without affecting the metallurgical properties of the transition metal stent is disclosed.

Devices and methods for rendering an intravascular stent radioactive in-situ, after stent placement. A stent is provided having a tubular body and a first substance immobilized on body. The first substance preferably has a high and selective affinity for a second substance which can be radioactive, cytotoxic or thrombolytic. The first substance can also have an affinity for growth factors or thrombolytic, chemolytic or cytotoxic agents. The stent can be placed across a stenosed blood vessel regi...

Horizontal partition wall 10 is disposed between ceiling slab 9 and floor slab 8. A plurality of storage tubes 6 each accomodating canister 2 are hanging from ceiling slab 9, and penetrate horizontal wall 10 to extend towards floor slab 8. Cooling passages are formed between horizontal partition wall 10 and ceiling slab 9 and between horizontal partition wall 10 and floor slab 8. Cooling air flowing through each of the cooling passages cools down storage tubes 6.