A large power reactor that has been in operation for somemonths is turned off, but residual activity in the core stillproduces 150 MW of power. If the average energy per decayof the fission products is 1.00 MeV, what is the core activity incuries?

Q: Cow’s milk produced near nuclear reactors can be tested for as little as 1.00 pCi of 131 I per…

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Q: The tissues of mass m 100 mg have adsorbed N= 1020 alfa-particles each of them having energy E = 3…

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Q: The annual radiation dose from 14C in our bodies is 0.01 mSv/y. Each 14C decay emits β- a averaging…

A: The relation between the activity and half-life is given as, R=0.693 Nt1/2 where, N is the number of…

Q: A particular radioactive source produces 144 mrad of 1-MeV gamma rays per hour at a distance of 1.0…

A: Given data: The dose in rad is, Dr= 144 mrad= 0.144 rad in one hour In t hours dose is, D= 1 rem…

Q: A typical chest x-ray radiation dose is 250 mSv, delivered by x rays with an RBE factor of 0.85.…

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Q: The tissues of mass m = 100 mg have adsorbed N = 1020 alfa-particles each of them having energy E =…

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Q: Time taken by a radioạctive nuclei hauing a half life of T years, to reduce to 3.125% of its…

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Q: A 228Th source is labeled 1.50 mCi, but its present activity is found to be 6.94 x 106 Bq. (a) What…

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Q: How many halE lives would hae to elapse for a Sample of a radioachtve isotope to decraase Of 3cpm?…

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Q: From the equation expressing the law of radioactive decay, derive the following useful expressions…

A: Given: The time interval is Δt. Initially the number of atoms is R. After time Δt the number of…

Q: A beam of 168-MeV nitrogen nuclei is used for cancertherapy. If this beam is directed onto a…

A: The equation for the number of nitrogen nuclei that were stopped is given by,

Q: Two sources of delayed neutrons in 235U fission are the fission fragments 7Br and 1371. Find the…

A: In this question we are given that two sources of delayed neutrons in 235U fission are the fission…

Q: A radioactive contaminant gives an unfortunate 0.5 kg lab rat a dose of 1500 rem in just 1 minute.…

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Q: A 50 kg nuclear plant worker is exposed to 20 mJ of neutron radiation with an RBE of 10. What is the…

A: The expression to solve for the dose of the neutron radiation is as follows:…

Q: 1. Neutron captured by beta decay happened to 238Np93 is irradiated with neutrons.  a. Write the…

A: Beta decay

Q: The neutron generation time tgen in a particularreactor is 1.0 ms. If the reactor is operating at a…

A: The equation for the number if neutrons present can be obtained from the equation for energy…

Q: If everyone in Australia received an extra 0.05 mSv peryear of radiation, what would be the increase…

A: The increase in the number of cancer deaths per year is given by the expression,

Q: for a ussing chamber, the left side has radioactively labeled K+ ions ,the right side has unlabeled…

A: Given : A ussing chamber with one side labeled k+ ions and other side with unlabeled k+ ions. Let…

Q: Estimate the number of 235U fissions per second that must occur in a 1000MW power plant, assuming a…

A: Let n and P­ denote the power plant’s efficiency and energy output, respectively. Evaluate the total…

Q: The annual radiation dose from 14C in our bodies is0.01 mSv/y. Each 14C decay emits a β– averaging…

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Q: Assume one-fourth of the yield of a typical 320-kTstrategic bomb comes from fission reactions…

A: The energy,

Q: Calculate the dose in rem/y for the lungs of a weapons plant employee who inhales and retains an…

A: Dose in rem,

Q: A reactor operates at 400 MW with a neutron generation time of 30.0 ms. If its power increases for…

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Q: A 60 Co source is labeled 4.00 mCi, but its present activity is found to be 1.85×107 Bq. (a) What is…

A: Given ,60 Co source is labeled 4.00 mCi present activity N = 1.85×107 Bq. 1 mCi = 3.7 x 107 Bq…

Q: A particular radioactive source produces 100 mrad of 2-MeV gamma rays per hour at a distance of 1.0…

A: The duration for which the person can stand before accumulating an intolerable doss is

Q: The natural fission reactor discussed in Module 43-3 is estimated to have generated 15…

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Q: A particular radioactive source produces 100. mrad of 2- MeV gamma rays per hour at a distance of…

A: Formula to calculate the required time is,

Q: An all - electric home uses approximately 2.00 x 103 kWh of electric energy per month. How much…

A: Let E1 be the energy used by the home per month.Write the expression for the energy used in one year…

Q: A cobalt-60 source with activity 2.60×10-4 Ci is embedded in a tumor that has mas 0.20 kg. The…

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Q: The electrical power output of a large nuclear reactorfacility is 900 MW. It has a 35.0% efficiency…

A: The relation of electrical output is Substitute the values and solve for the input power. The…

Q: Naturally occurring 40K is listed as responsible for 28 mrem/y of background radiation. Calculate…

A: The given values are,

Q: If a reactor produces an average power of 1000 MW for a year, a. How much U-235 is used up assuming…

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Q: An organic sample of mass 4.00 kg absorbs 2.00 mJ via slow neutron radiation (RBE=5).What is the…

A: The expression for the dose equivalent is,

Q: Naturally occurring 40K is listed as responsible for 38 mrem/y of background radiation. Calculate…

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Q: In class, we used small radioactive sources as demonstrations. One of those source is 137Cs with an…

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Q: Why is moderators, enrichment, and critical mass important for a fission chain reaction?

A: Fission chain reaction : Fission chain reaction in which nuclear fission happens multiple time over…

Q: In order to minimize neutron leakage from a reactor, the ratio of the surface area to the volume…

A: (a) The ratio of the surface area (A) and the volume (V) of the sphere of the radius a can be…

Q: A 228Th source is labeled 1.50 mCi, but its present activity is found to be 1.73 ✕ 106 Bq. A.) What…

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Q: Calculate (in MeV) the total binding energy and the binding energy per nucleon (a) for 40Ar and (b)…

A: Known data: Number of protons of Argon is np=18 and the number of neutrons is nn=40-18=22 Number of…

Q: Calculate the radiation dose in rem per year for the lung of a weapon plant employee who inhales and…

A: The activity of the plutonium is

Q: A 70-kg person experiences a whole-body exposure to alpha radiation (RBE=15) with energy 4.77 MeV. A…

A: It is given that,

Q: For the fusion reaction shown below, find the amount of energy (Q) released. (Enter your answer in…

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Q: Naturally occurring 40K is listed as responsible for 27 mrem/y of background radiation. Calculate…

A:

Nuclear Reactions

Nuclear reactions are processes in which the fundamental characteristics of a nucleus changes. They change into a completely different nucleus. These processes occur naturally in an unstable nucleus. Bombarding an energetic particle can induce nuclear reactions.  In this article, both the naturally occurring nuclear reactions are termed as radioactive decay and the induced nuclear reactions are further categorized as nuclear fission and nuclear fusion.