The isotope of Nickel, 6°Ni decays by B emission, has a half-life of 2.3 days. and the B particles have an average energy of 65 keV. A source consisting of this isotope has an initial number of atoms No = 5 x 1020 atoms. What is the power per unit area initially deposited by this source in a small target placed at 1m distance from the source?
The isotope of Nickel, 6°Ni decays by B emission, has a half-life of 2.3 days. and the B particles have an average energy of 65 keV. A source consisting of this isotope has an initial number of atoms No = 5 x 1020 atoms. What is the power per unit area initially deposited by this source in a small target placed at 1m distance from the source?
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Transcribed Image Text:The isotope of Nickel, 66Ni decays by
B emission, has a half-life of 2.3 days.
and the B particles have an average
energy of 65 keV. A source consisting of
this isotope has an initial number of
atoms No = 5 x 1020 atoms.
What is the power per unit area initially
deposited by this source in a small
target placed at 1m distance from the
source?
Select one:
O a. 4.5 kW/m2
O b. 1.45 W/m2
О с.
7.6 MW/m2
O d. 35 W/m2
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