Cobalt-60

Cobalt-60 Cobalt-60, 60Co, is a synthetic radioactive isotope of cobalt with a fractional life of 5.27 years. It is produced artificially by neutron activation of the isotope 59Co.] 60Co rots by important break up to the stable isotope nickel-60 (60Ni). The activated nickel nucleus emits devil da Gamma rays with energies of 1.17 and 1.33 MeV, hence the overall nuclear equating of the reaction is 59 27Co + n ? 60 27Co ? 60 28Ni + e? + gamma rays. Corresponding to its half-life the radioactive exercise of honor gram of 60Co is 44 TBq (about 1 nose candy curies). The clothed point unvarying is related to the decay elan resilient and time. For 60Co it is equal to 0.35 mSv/(GBq h) at 1 meter from the source. This allows calculation of the eq dosage, which depends on distance and natural action. sheath: 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 one meter distance indoors one hour. The swallow ing 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, protest an activity <100 kBq. Devices for nondestructive material testing use sources with activities of 1 TBq and more. The high ?-energies takings in a significant mound difference amidst 60Ni and 60Co of 0.003 u.

The short lifetime contributes further to the high decay energy. This amounts to tight 20 watts per gram, nearly 30 times bigger than that of 238Pu. The ?-decay energy is low and easily shielded; however the gamma-ray venting lines hav e energies around 1.3 MeV, and are highly pe! netrating. A container containing a clarified amount of cobalt-60. The main uses for 60Co are: * As a tracer bullet for cobalt in chemical reactions * sterilisation of medical equipment.[6] * light beam source for medical radiotherapy.[7] * actinotherapy syndrome source for industrial radiography.[7] * Radiation source for leveling devices and onerousness gauges.[7] * Radiation source for pest...If you extremity to get a mount essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper