sealed radioactive source

sealed radioactive source

A generic term for any form of therapeutic radiation which is enclosed in delivery devices (cylinders, pellets, pins, plaques, rods, tubes, and wires), and left in place either temporarily (Sr/Y90, Ru106, Cs137, Ir192) or permanently (I125, Pd103, Au198).
References in periodicals archive ?
Furthermore, this activity builds on another on-going work of the IAEA to upgrade the MHC to facilitate direct borehole disposal of sealed radioactive sources, also known as the BOSS methodology.
Sealed radioactive sources with Cobalt- 60 are very often found in imported scrap.
Sealed radioactive sources, radioactive material encapsulated in stainless steel or other metal, are used worldwide in medicine, industry, and research.
Sensitivity--Effective monitoring systems should be sensitive enough to measure the often low levels of radiation emitted from sealed radioactive sources.
A spokesman for the Environment Agency said: "Following a routine inspection by an Environment Agency inspector, a number of breaches of the conditions of the hospital's certificate of registration for the keeping and use of sealed radioactive sources were identified.
Of the industrial scrap classifications, the one most likely to contain sealed radioactive sources, he said, is cut plate or structural scrap, often referred to as railroad or demolition grade scrap.
In 2010, the Chemistry Department at the University of Delhi sold a machine containing cobalt-60 sealed radioactive sources (SRS) to a scrap metal dealer as part of a campus-wide project to get rid of outdated laboratory machinery.
A few weeks later, the first dealer developed skin lesions and diarrhoea, and was hospitalized with radiation sickness, prompting an investigation that resulted in authorities confirming the presence of sealed radioactive sources at the scrap yard.