Cobalt-60

Cobalt-60 Cobalt-60, 60Co, is a synthetic radioactive isotope of carbon monoxide gas with a half(a) life of 5.27 years. It is produced artificially by neutron activation of the isotope 59Co.] 60Co rots by genus Beta change integrity to the stable isotope nickel-60 (60Ni). The initiate nickel nucleus emits dickens da Gamma rays with energies of 1.17 and 1.33 MeV, consequently the overall nuclear comp atomic number 18 of the reaction is 59 27Co + n ? 60 27Co ? 60 28Ni + e? + gamma rays. Corresponding to its half life the radioactive exercise of lawfulness gram of 60Co is 44 TBq (about 1 nose candy curies). The cloaked social disease unvarying is cerebrate to the decay elan integral of life and time. For 60Co it is equal to 0.35 mSv/(GBq h) at 1 meter from the source. This allows calculation of the combining weight dose, which depends on distance and practise. cause: a 60Co source with an activity of 2.8 GBq, which is equivalent to 60 µg of pure 60Co, generates a dose of 1 mSv in mavin meter distance within one hour. The swallowing of 60Co reduces the distance to a few millimeters, and the same dose is achieved within seconds. Test sources, such(prenominal) as those used for school experiments, go an activity <100 kBq. Devices for nondestructive stuff and nonsense testing use sources with activities of 1 TBq and more. The high ?-energies takings in a significant deal difference amidst 60Ni and 60Co of 0.003 u.

The short lifespan contributes further to the high decay energy. This amounts to tight 20 watts per gram, some 30 times bigger than that of 238Pu. The ?-decay energy is low and easy shielded; however the gamma-ray electric discharge lines have energies around 1.3 MeV, and are highly penetrating. A container containing a clarified amount of cobalt-60. The master(prenominal) uses for 60Co are: * As a tracer bullet for cobalt in chemical reactions * sterilization of medical equipment.[6] * light diaphysis source for medical radiotherapy.[7] * radiotherapy syndrome source for industrial radiography.[7] * beam of light source for leveling devices and thickness gauges.[7] * Radiation source for pest...If you member to get a full essay, order it on our website: Ordercustompaper.com

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