Show the full calculation steps to justify why the single-photon energy is 511 keV during the mutual annihilation of a positron (e+ ) and an electron (e- ) in the human body. This is the basic principle of PET.

Q: Consider the photodisintegration of a deuteron at rest. Use both the conservation of energy and…

A: Given: Consider the photodisintegration of a deuteron at rest. Use both the conservation of energy…

Q: The energy and exergy contents of a fixed mass.

A: Exergy is the useful work of the given amount of energy at some specific state. It is equivalent to…

Q: A 4.78 MeV alpha particle from a 226Ra decay makesa head-on collision with a uranium nucleus. A…

A: Given: A uranium nucleus has 92 protons. Kinetic energy of α is…

Q: Another component of the strong nuclear force is transmitted by the exchange of virtual K-mesons.…

A: The expression for the required range of the component of the strong force by using uncertainty…

Q: Calculate the number of joules that can be obtained from fissioning 1 kg of 235U, assuming 198 MeV…

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Q: Another component of the strong nuclear force is transmitted by the exchange of virtualK-mesons.…

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Q: a) What are the cherenkov angles for electrons and pions of 1000 MeV/c in a medium with n =1.4? b)…

A: Given:-  Electrons and pions of 1000 MeV/c in a medium with n =1. Find:-  a) What are the Cherenkov…

Q: A neutral pion (r = uu or dd) decays while at rest into two photons (y). mo = 135MeV/c² a) What is…

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Q: The time it takes the signal to drop halfway, when exponentially decaying, is called the half-life,…

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Q: Mass attenuation coefficient (u/p) for 1 MeV photons in water is given to be 0.0708 cm²/g (Table 8.3…

A: Linear attentuation coefficient is a constant value which describes the fraction of attenuated…

Q: Integrated Concepts(a) What is y for a proton having an energy of 1.00 TeV, produced by the Fermilab…

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Q: How might the mass of the particle affect the tracks created by the ionizing radiation? Given…

A: The mass of a particle can have an impact on the tracks created by ionizing radiation. When ionizing…

Q: Calculate the relative size of the pulses in a GM counter produced by MeV protons and 4 MeV…

A: pulse voltage height, V=IRwhere current, I=qtcharge, q=ne. t is the time taken and R is the…

Q: The RBE for low-energy βs is 1.7, whereas that for higher-energy βs is only 1. Explain why,…

A: RBE (relative biological effectiveness) is the  ratio of biological effectiveness of two ionizing…

Q: A point source isotropically emitting 108 fast neutrons per second falls out of its shield onto a…

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Q: Calculate the energy of a 511 keV annihilation photon after Compton has been scattered at one angle…

A: Solution: When a 511 keV photon undergoes Compton scattering, it loses some energy to an electron…

Q: For 3 MeV photons interacting with 1 cm3 human tissue, calculate the total KERMA (in MeV/g) assuming…

A: Given that 3MeV photons upon interacting with human tissue, 1 of them undergoes photoelectric…

Q: 4. One second after the Big Bang the cosmic plasma has cooled to a temperature T - 1010 K, at which…

A: Hence the answer..

Q: 4. An electron and a positron, each of mass 9.11 x 10-³¹ kilogram, are in the same general vicinity…

A: Given data- Each of Mass of an electron and a positron            m=9.11×10-31 kg Both have very…

Q: A physicist scatters γ rays from a substance and seesevidence of a nucleus 7.5×10–13 m in radius.…

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Q: What is the Beryllium thickness to degrade proton beam from 235 MeV to 70 MeV?

A: Difference in energy is calculated as 235Mev-70Mev=165 MeV1 eV=1.6×10-19 J

Q: What fraction of the upper laser decay time, Y21 would the pumping rate, Гоз ,need to be greater…

A: The pumping rate is directly proportional to the coefficient of stimulated emission B21 R α B21R=B21…

Q: DETAILS PREVIOUS ANSWERS AE+ particle of kinetic energy 3.0 GeV is produced inside a bubble chamber.…

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Q: A particle of ionizing radiation creates 4000 ion pairs in thegas inside a Geiger tube as it passes…

A: Minimum energy deposited is , E = (number of ion pairs created)*(energy required to create each ion…

Q: Integrated ConceptsThe intensity of cosmic ray radiation decreases rapidly with increasing energy,…

A: Cosmic energy=1010 GeVRest mass energy=200 (MeV/c2)c2A=Area=1 km2

Q: How much total kinetic energy will an electron–positronpair have if produced by a 3.64-MeV photon?

A: Given: The energy of the photon is 3.64 Mev. Introduction: The total energy of the photon is the sum…

Q: 34. (a) A charged pi meson has a rest energy of 140 MeV and a lifetime of 26 ns. Find the energy…

A: hence according to the given question  ,there is a charged pi meson having the rest rest energy…

Q: The unified atomic mass unit is defined to be 1 u = 1.6605×10−27 kg . Verify that this amount of…

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Q: materi What is the speed (in terms of c) of a 1.00 GeV cosmic ray proton? The rest mass of the…

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Q: (a) The mass of a neutron, mn = 10^-27 kg is trapped inside a nucleus of a cubicalbox of size 10-14…

A: Given Data for (a)  The mass of neutron is 10-27 kg and size of cubical box 10-14 m  for (b) radius…

Q: The neutrons in a parallel beam, each having kineticenergy 0.025 eV, are directed through two slits…

A: The expression for find wavelength is λ=h2mE Substitute values in the above equation…

Q: ng the number

A: All the neutrons are  bounded to the Again every nucleus contains two neutrons . So number of helium…

Q: Investigate and explain the "Gyromagnetic ratio", from this calculate the value of the gyromagnetic…

A: We know thatμ=IA=qTπr2

Q: Prove that the difference in population numbers (N₁, N₂) between two energy levels E₂ and E₁ is…

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Q: Using the average logarithmic energy decrement, estimate the number of collisions required to reduce…

A: Solution Initial Energy,                   E0=2 MeV = 2×106eV Final Energy,…