Fukushima Unit-2 produced approximately 3200 MW of thermal power. Assume it had operated for 16 months before the tsunami and then was shut down for 20 days before the any radioactive material was released. a. How much fission product activity was present in the core at the time of the accidental release? b. Assuming 2 MeV per radioactive decay (1 MeV from a beta and 1 Mev from a gamma), and that all of the energy was deposited into the reactor core and coolant, how much heat (in MW) was being produced by the fission product activity on the 20th day?

Q: Scientists have continuously been searching for ways to create a system for energy production…

A: Fusion requires a large amount of energy to force to initially fuse together.

Q: 4 He 1 H + 1 + 1 Solve this Problem: Prove the products of the FUSION equation shown above have…

A:

Q: 131 I is given to a patient for use in a diagnostic procedure on her thyroid. Part A What percentage…

A: We know that, half life of iodine is approximately 8 days. So, T1/2 = 8 days. Now, T1/2 = 0.693λ or,…

Q: Plutonium-239 (t1/2 = 2.41x104 yr) represents a serious nuclear waste hazard. If seven half-lives…

A: Given that, The half-life of Plutonium-239 is t1/2 = 2.41 x 104 yr We need to find the time that…

Q: Why are very high temperatures and pressures required for fusion to occur? O to generate the…

A: Option B  i.e.  to overcome the replusion between the protons in  the nuclei that join.

Q: A radioactive isotope decays by ß- emission. a) i What is radioactive decay, and how is it related…

A: Atoms consist of a nucleus composed of protons and neutrons, surrounded by electrons. The stability…

Q: Radiation therapy uses high-energy radiation to damage the DNA of cancer cells, which kills them or…

A: As already stated in the question, Radiation therapy uses high-energy radiation to damage the…

Q: A gamma scan showing the active volume of a patient’s lungs can be created by having a patient…

A: Given: The dose is 3.0 mSv. The mass of lung is 1.2 kg.

Q: A spaceship in distress sends out two escape pods in opposite directions. One travels at a speed v =…

A: Given:-   The speed of the first escape pod, assuming it is moving towards the right VA = 0.66c The…

Q: Iron-58 and bismuth-209 fuse into a large nucleus plus a neutron. Write the reaction equation and…

A:

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: The following explanation of a fission reactor contains many errors. Please correct as many as you…

A: Step 1: Para 1 line 1: "harnessing" read "exploiting" Para 1 line 3: "fusing" read "fission" Para 1…

Q: You go to the doctor and he gives you 13 milligrams of radioactive dye. After 24 minutes, 7.75…

A: Given, An initial dose of the dye, N0=13mg After 24 minutes 7.75mg of the dye remains.…

Q: Which of the following radioactive doses would deliver the most energy to a patient? Dose A delivers…

A: Given;- A delivers 6 mrad with an RBE of 3, dose B delivers 9 mrad with an RBE of 2, and dose C…

Q: Sketch a diagram indicating the s-process path from 102 Ru to 109 Ag. Specify the type of each…

A: The s-process path from  to  involves a series of neutron captures and beta decays. The atomic…

Q: For a fusion reaction, at which temperature T do you expect the optimal reaction rate to…

A: Fusion reaction only happens at higher temperatures. When the temperature is higher enough to break…

Q: What are the pros and cons of nuclear fission?

A: Nuclear fission: When the nucleus of an atom splits into lighter nuclei through a nuclear reaction…

Q: a. What is the mass of technetium-99m present at 200 minutes? 115. A common isotope used in medical…

A: The given graph represents the rate of decay of Technetium-99m. Mass of the subtsance is along the y…

Q: a) The activity of a radioactive source is given by dN AN dt where N is the number of nuclei present…

A: A) The activity of a radioactive source is given by : -dNdt = λN initial number of nuclei = No at t…

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.