radioactive cobalt

radioactive cobalt

[¦rād·ē·ō′ak·tiv ′kō‚bȯlt]
(nuclear physics)
Radioactive form of cobalt, such as cobalt-60 with a half-life of 5.3 years.
References in periodicals archive ?
There are about 800 cartridges of radioactive cobalt from the 1950s and 1960s that were used for radiotherapy and to sterilize medical supplies.
Mexican authorities said they found the stolen truck and at least some of the radioactive cobalt on Wednesday, CNN reports.
VIENNA: The UN nuclear watchdog said it has airlifted deadly radioactive cobalt materials out of Lebanon to safety in Russia.
The United Nations (UN) nuclear watchdog has airlifted deadly radioactive cobalt material out of Lebanon and sent it to Russia to ensure it did not fall into the wrong hands, the Beirut dailies AN NAHAR and AL AKHBAR reported Friday.
strung along the neck of Manchuria." This would have created "a belt of radioactive cobalt" from the Sea of Japan to the Yellow Sea.
A radioactive cobalt unit costing pounds 10,000 is to be installed at the Derbyshire Royal Infirmary, Derby for use in the treatment of cancer.
* Gamma ray irradiation uses radioactive cobalt or cesium, which penetrates food with high-energy photons.
Throughout the 1950s and 60s and into the mid-70s, Dugway conducted over 1,000 open air chemical weapons tests with GB, VX and mustard agents, over 200 open air biological weapons tests involving a potpourri of pathogens, and nearly two dozen open air radiological tests, most involving radioactive tantalum, but using radioactive cobalt 60 on at least one occasion.
In May 2003, Argentina's nuclear regulatory agency red-flagged a request from a party in Texas for a teletherapy-sized shipment of radioactive cobalt. That quantity could provide enough radioactivity for a potent RDD.
They developed a technique of sexually sterilizing male flies with radioactive cobalt. Fly factories were established where millions of flies were reared and sterilized each week, and massive numbers of them were airdropped over thousands of square miles of the Southeast--the initial target area of the project.
In the early 1980s, contaminated metal from unknown sources was fabricated into jewelry (wearers developed cancer and lost their fingers) and restaurant table legs (most were detected prior to delivery, but some patrons and employees may have been exposed to radioactive cobalt 60).
During the irradiation process, foods are passed through a chamber containing radioactive Cobalt 60 and also bombarded with electron beams or X-rays to kill bacteria, insects and mold.