sealed source

sealed source

Etymology: ME, seel, mark; Fr, sourdre, to spring
a source of radioactivity that is permanently encased in a container or bonding material to prevent leakage. Sealed sources, such as seeds, needles, and specially designed applicators, are used in the implantation of cesium-137, iodine-125, iridium-192, radium-226, and other radionuclides for the treatment of various malignant tumors.
References in periodicals archive ?
218) NRC maintains a Sealed Source and Device Registry (SS&DR), which lists such products approved for use by its licensees, (219) as well as the National Source Tracking System discussed earlier.
Moreover, while CBP has systems in place to verify the legitimacy of radioactive materials licenses, it has not effectively communicated to officers at the borders when they must contact officials to verify the license for a given sealed source.
Sealed source techniques provide information which often complements that obtained by tracer techniques, facilitating a more complete understanding of the system under investigation.
For the purposes of this Directive, "orphan source" means a sealed source the activity level of which, at the time of its discovery, is above the relevant exemption level and which is not under regulatory control either because it has never been so or because it has been abandoned, lost, misplaced, stolen or transferred, without proper notification of the competent authority, to a new holder or without informing the recipient.
Eckert & Ziegler Isotope Products is very excited to be adding NASM Sealed Source portfolio to our own.
Dual Attenuation Correction (DAC Technology) allows the combination of both CT and sealed source attenuation correction to effectively image patients with metal implants and prosthetics.
These devices have also received Sealed Source and Device ("SS&D") registration from the State of California Department of Health Services.
Tenders invited for Bi-1000 is cesium based blood irradiator, designed for 3200ci sealed source of cs-137.
Nasdaq:RADX) today announced that it received from the State of California Department of Health Services a sealed source and device (SS&D) registration for the Company's RDX(TM) Coronary Radiation Delivery System.
Novoste Corporation (NASDAQ: NOVT) announced today that the State of Georgia Department of Natural Resources (DNR) has issued a sealed source and device registration certificate for the Company's Beta-Cath(TM) System, allowing it to be listed on the Nuclear Regulatory Commission's Sealed Source and Device Registry.
Option 1 Benefits include the design, manufacture, testing and installation on site of a collision protection for the castle of the sealed source with high activity SSHA Castle located in the lobby of deliveries.