If 1 g of Cobalt-59 is irradiated in a neutron flux of 10¹4 neutrons/cm².s for a long period. Calculate the activity of the sample if it were removed from the reactor after a period of 1 year. Determine how long it would take for the activity of the sample to drop to one third of its activity after removal from the reactor. Use the following data: Half life of Co-60 =5.27 years. Microscopic cross section of Co- 59 37.2 barns. Density of Cobalt =8.8 g/cm³.
If 1 g of Cobalt-59 is irradiated in a neutron flux of 10¹4 neutrons/cm².s for a long period. Calculate the activity of the sample if it were removed from the reactor after a period of 1 year. Determine how long it would take for the activity of the sample to drop to one third of its activity after removal from the reactor. Use the following data: Half life of Co-60 =5.27 years. Microscopic cross section of Co- 59 37.2 barns. Density of Cobalt =8.8 g/cm³.
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Transcribed Image Text:If 1 g of Cobalt-59 is
irradiated in a neutron flux of 10¹4
neutrons/cm².s for a long period.
Calculate the activity of the
sample if it were removed from
the reactor after a period of 1 year.
Determine how long it would take
for the activity of the sample to
drop to one third of its activity
after removal from the reactor.
Use the following data:
Half life of Co-60 =5.27 years.
Microscopic cross section of Co-
59 37.2 barns.
Density of Cobalt =8.8 g/cm³.
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