Production
Copper-64 can be technically reproduced by several different reactions with the most common methods using either a reactor or an accelerator. Thermal neutrons can produce 64Cu in low specific activity (the number of decays per second per amount of substance) and low yield through the 63Cu(n,γ)64Cu reaction. At the University of Missouri Research Reactor Center (MURR) 64Cu was produced using high-energy neutrons via the 64Zn(n,p)64Cu reaction in high specific activity but low yield. Using a biomedical cyclotron the 64Ni(p,n)64Cu nuclear reaction can produce large quantities of the nuclide with high specific activity.
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—Charles Darwin (1809–1882)
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—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)