The half-life of radioisotope X is 10 days. A sample gives an initial count rate of 440 counts per second. What will be the count rate after 30days?
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A: Given the dosage of technetium-99m for a lung scan is 20. µCi /kg of body mass. - How many…
Q: considered to be reduced to a safe level after 10 half-lives have elapsed. (Obviously, the initial…
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Q: 12. A point source of 5-MeV y-rays with intensity 3 x 103 y-rays/cm2- sec is shielded with 50 cm of…
A: Given: The energy of the Gamma-rays is E = 5 MeV The intensity of the point source is I0 = 3 x 103…
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Q: Radioactive decay can be described by the following equation In A = In Ao - kt where Ao is the…
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Q: 14. Iodine-131, a beta emitter, has a half-life of 8 days. A 2-gram sample of initially pure…
A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want…
Q: a general rule, the radioactivity from a particular radioisotope is considered to be reduced to a…
A: Radioactivity from a particular radioisotope is considered to be reduced to a safe level after 10…
Q: Calculate the radioactivity of 0.5mg of cobalt 56 in units of curie? Its radioactivity is 50 days,…
A: Given data: The sample amount of cobalt is m=0.5 mg=0.5×10-3 g The atomic mass of cobalt is A= 56 g…
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A: Given: T1/2=6 hours
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Q: 131I is a Beta - emitter used as a tracer for radioimmunoassay in biological systems. (a) Write the…
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A: Given data : Half life (t1/2) = 4.8 hours Dose received (N0) = 60.2 mCi…
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Q: Geiger counter reading of a radioactive sample is initially 7220 counts per minute. The same sample…
A: Given: The initial amount is 7220 counts per minute. The final count is 422 counts per minute. The…
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Q: How many half-lives must elapse until (a) 77% and (b) 99 % of a radioactive sample of atoms has…
A: Solution in answer, feel free to ask for clarifications if needed.
Q: A 73.0 kg person experiences a whole-body exposure to alpha radiation with energy of 1.50 MeVMeV. A…
A: Given problem is based on the dosimetry. Absorbed dose is defined as, the amount of energy deposited…
Q: Geiger counter reading of a radioactive sample is initially 6520 counts per minute. The same sample…
A: Given:Initial count rate, N0 =6520 count/minFinal count rate, N = 422 count/mintime, t = 10.1 hr
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Q: The radionuclide 32P (T1/2 = 14.28 d) is often used as a tracer to follow the course of biochemical…
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Q: You are training for an upcoming Physics Olympics competition. Your coach gives you the following…
A: In the question it is given that the mass of the indium( 115In) is m=94.1 gInitial activity of the…
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