strontium 90


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Related to strontium 90: cesium 137, strontium 89

stron·ti·um 90 (90Sr),

(stron'shē-ŭm),
A radioactive strontium isotope; a β emitter with a half-life of 29.1 years; a major component (about 5%) of the uranium fission products; it is incorporated into bone tissue where turnover is slow; used to treat some ocular conditions (for example, pterygia).

strontium 90

A radioactive isotope of 28 years half-life that is produced in large quantities in nuclear fission reactions. It accumulates in the bones and may cause leukaemia and bone tumours.
References in periodicals archive ?
Would Strontium 90 in the genes explain the following strange fellow?
In 1993, lab officials found elevated levels of tritium, along with strontium 90, cesium 137 and plutonium 238, in soil samples from Brandies Bardin taken near the lab property line.
FIRTH OF CLYDE, Radioactive strontium 90, which would now have to be stored in special concrete-lined pits, is on the seabed off Arran.
In the water sampled May 24, the strontium 90 level stood at 1,000 becquerels per liter, about 30 times as high as the maximum allowable standard, and the toritium level at 500,000 becquerels, some eight times higher, it said.
That leaves the infamous ``fourth food group'' - chocolate - which recently was alleged to contain lead, mercury, zinc, carbon 14, ozone, radioactive iodine, used tire rubber and strontium 90.
While the discovery of 195 becquerels of strontium 90 in the rooftop sediment has fueled concerns that leaked radiation may have spread further than the government had expected, the officials said the city office is carefully examining where the material came from.
March 13 /PRNewswire/ -- Strontium 90 is a common radioactive by-product of fission in nuclear power plants.
Similar in size and appearance to a fountain pen, the surgical device delivers strontium 90 radiation to leaking vessels that affect central vision, sparing the surrounding tissues.
Prefectural governments across the nation would be instructed to use their existing monitoring facilities to measure the quantities of particles of such radioactive substances as cesium 137 and strontium 90, according to the officials at the Ministry of Education, Culture, Sports, Science and Technology.
A low level of strontium 90 was detected at a single, isolated location at Dresden Generating Station that was the remnant of rainwater drainage from an open pipe during construction activities in 1975.
The tests simulated the following devices: - Simulant 1: Cobalt/Iridium tungsten rods in a lead container with a quantity high explosives and a remote radio controlled detonator; - Simulant 2: Cesium powder simulant, with C-4 plastic explosives and a remote cellular phone detonator; - Simulant 3: Strontium 90 rods (simulated) in a lead container with high explosives and a timer-controlled detonator.