Question

A thermal neutron beam of intensity 1 to the power 11, neutrons/sec is directed for 2 days into a cavity in a block of cobalt initially composed entirely of the stable isotope Cobalt 59. The neutrons are all captured, producing cobalt 60 nuclei which are radioactive with a half-life of 5.3 years.
What is the activity of the cobalt 60
(y-ray) source produced at the end of the two days?

Related Questions

1.a radioscope which is neutron poor and very heavy is most likely to decay by? alpha , beta, el... When installed in the year 1,985, a cobalt-60 radiation therapy source (k = 0.131 yr-1) produced a b... What is the kinetic energy of each electron in a beam of electrons if the beam produces a diffractio... What determines the intensity of a sound beam? Choose only ONE best answer. A The type of ultra...