62 Cu is produced at a constant rate e g , by the (, n) reaction on 63 Cu placed in a high energy x ray beam and decays by decay with a half life of about 10 min How long does it take to produce 90 percent of the equilibrium value of 62 Cu

Question: 62 Cu is produced at a constant rate [e.g., by the (, n) reaction on 63 Cu placed in a high-energy x-ray beam] and decays

⁶²Cu is produced at a constant rate [e.g., by the (ϒ, n) reaction on ⁶³Cu placed in a high-energy x-ray beam] and decays by β⁺ decay with a half-life of about 10 min. How long does it take to produce 90 percent of the equilibrium value of ⁶²Cu?

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