A radioactive or non-radioactive 2-iodobutyrophenone derivative the formula: ##STR1## wherein X is a radioactive or non-radioactive iodine atom. The radioactive compound has a high affinity for dopamine receptors and is very useful as a radioactive diagnostic agent and as a radiopharmaceutical, and the non-radioactive compound also as a high affinity for dopamine receptors and is very useful as a neuroleptic, a sedative, an anodyne, a tranquilizer, etc.

Method and apparatus for assaying and sorting radioactive seeds that provides for feeding seeds in line horizontally in end to end fashion; translating the seeds from the horizontal to a vertical stack; singulating the seeds from the vertical stack and moving a singulated seed to a horizontally displaced position; loading the horizontally displaced singulated seed into a shuttle by pushing vertically downward into a cavity in the shuttle; moving the shuttle horizontally from a retracted position...

A system for detecting unsecured nuclear materials. Whereas current portal monitors rely in part on physical prominence to deter materials from entering the country, their application at intra-modal transport points may actually serve to divert the movement of nuclear materials rather than aid in interception. A flexible and low-profile system has been developed for unobtrusive detection and tracking of radioactive sources in transit suited for deployment at traffic choke points such as rest sto...

Packaging system for radioactive materials having: a vial with closure for accommodating the radioactive material; a first casing to be opened, enclosing the vial, and essentially made from a transparent material, which has a capture cross-section selected for shielding at least a part of the emitted radiation; and a second casing to be opened, made from a material with a high capture cross-section (Z) for essentially shielding the remaining radiation, the second casing enclosing the first casin...

After a syringe containing a radioactive sample therein and housed in a radiation shield case is mounted on a radioactive sample holder and set in a radioactive sample measuring apparatus, an upwardly projecting handle of the radioactive sample holder is depressed to cause a syringe holder base supported on second shafts to lower a flange of the syringe held by the syringe holder base, pulling the syringe out of the radiation shield case. Then, the amount of radioactivity of the radioactive samp...

Radioactive cesium is confined in a hollandite structure formed by a process that does not require reducing conditions.

A method of simply and quickly determining .alpha.-ray releasing nuclides having long half-life without carrying out a chemical separation is provided.By inputting a data of pulses incident to an .alpha.-ray detector in a computer, obtaining time distribution of the incident pulses by using a very short time measuring timer and plotting, and fitting the linear originated in a random event corresponding to the background and the non-linear originated in the correlated events of parent nuclides-pr...

Radioactive therapeutic seeds include a two part seed capsule, a radioactive isotope, and, preferably, a radiopaque marker. According to the invention, the seed capsule has an outer part, and an inner part which fits into the outer part and which carries the radioactive isotope. The capsule is sealed by welding the end(s) of the inner part to the end(s) of the outer part. According to one embodiment, the outer part of the seed capsule is a cylinder with one open end and one closed end. The inner...

An implantable medical device according to the systems and methods described herein may include a metal body or stent that does not contain significant quantities of iron or chromium and that is initially formed from a non-radioactive structural material. A non-radioactive activatable additive (the precursor isotope) may be added into or onto the body of the medical device. Neutron activation of the body of the medical device with the incorporated non-radioactive isotope may then be accomplished...

A device, system and method for delivering radiation to interior body sites, including stenosed blood vessel regions for the purpose of inhibiting restenosis after angioplasty. A string having a radioactive first region, a second region, and an intermediate region is disposed within or along an elongate shaft having a distal return member. The string intermediate portion is typically initially looped over the distal return member. The radioactive region is normally initially disposed within a ra...