The nuclear density of deuterium has a radial dependence given by P= Por-²e-2kr where, k¹= 2.3 F. Evaluate: frp dr r²pdr Rrms =
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A: Given : Radius of nucleus (R) = 3.26 fm No. of neutrons (N) = 10
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A: Given data: Atomic mass number of nucleus = 60 Empirical constant r0 = 1.2fm
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- [Nuclear Physics] Given the SEMF equation in the first imageAn alpha particle looses all of its energy in a gas and produces 15000 ions pair.If energy needed to produce one ion pair is 30ev.calculate the energy of alpha particle?a) Explain the types of nuclear decay (alpha (α), beta (β), gamma (ϒ)? Explain the alpha (α) tuning phenomenon. b) What does 1eV mean? Derive the activity (A), half-life (), average life (ζaverage) relations together with their mathematical relations. c) Derive the photoelectric effect with the necessary equations about the compton effect, pair formation, double extinction.
- 2. A vial contains 1900 MBq of Technetium-99m on the 18th June 2014 at 06:00. How much will it contain at 07:00 on the 19th June 2014? Please input your answer in Bq and Ci. Note :- When a vial contains 1900 MBq of Technetium- 99m. Kindly give the correct answer.Q5: Energetic neutrons bombard an aluminum foil of thickness 0.20 mm. The aluminum nuclei undergo neutron capture according to the process 2"Al (n, y) 28AI, with a measured capture cross section of (2.0 10-3 b). Assuming the flux of incident neutrons to be (7.0*102 neutrons/cm2.s), calculate the number of neutrons captured per second by 1.0 cm-2 of the foil, and what is the enough thickness to capturing the all neutrons.Write the precise nuclide identifi cation for the missing element x for the following reactions. (a) 16O(d, x)14N, (b) 7Li(x, n)7Be, (c) 15N(α, n)x, (d) x(d, p)77Se (e) 107Ag(3He, d)x, and (f) 162Dy(x, d)163Ho.
- The thermal energy generated when radiation from radionuclides is absorbed in matter can serve as the basis for a small power source for use in satellites, remote weather stations, and other isolated locations. Such radionuclides are manufactured in abundance in nuclear reactors and may be separated chemically from the spent fuel. One suitable radionuclide is 238Pu (T1/2 = 87.7 y), which is an alpha emitter with Q = 5.50 MeV. At what rate is thermal energy generated in 1.00 kg of this material?I need the answer as soon as possible39.8 An atom of uranium-235 (atomic mass: m(23U) cays to thorium-231 (atomic mass: 231. 00 Th) = 231.03630 u) emission of an 235.04392 u) de- 92 via the a particle (nuclear 4.00151 u). m(ža) c = 2.998 x 108 m s-1. mass: Use %D (a) What is the binding energy of an 235U nucleus (in J)? 92 (b) What is the binding energy of a 231 Th nucleus (in J)? 90 (c) What is the binding energy of an a particle (in J)? (d) What is the maximum possible ki- netic energy (in J) of the a particle emitted during this decay? (Hint: what is the difference between the mass of 23°U and the total mass of 92 231 Th and an a particle?) 90 (e) Whatis the maximum velocity of the emitted a particle?
- 1) If the activity of a purely radioactive sample of 55Fe is measured to be 0.5 mCi. What is the number of nuclei of this isotope present after 5.4 years. 2) 226Ra (t₁/2 = 1600 y) alpha decays to the 1st excited state of nucleus X with branching ratio 6% and alpha decays to the ground state of X with branching ratio 94%. Calculate the partial half-life for the first mode transition (the one to the first excited state of X). 3) Fill the missing and decide the type of decay in the following decays: a) Co* → [ ] + Co b) ¹50 [ ] + [ ] + ¹5N 40 c) 10K + [ ] 18Ar d) 21 Po 84 e) ¹3 Be →>> 2a + [ ] ¹2Be + [ ]Consider the nuclei 117Sn50. Determine its mass defect in kilograms if its atomic mass is 116.968 amu. The mass of a proton and neutron are 1.0073 and 1.0087 amu, respectively.It is known that the initial number of atoms in a radioactive sample is No = 4.0 x 108 atoms. If the the half life of the sample is measured to be 6 days, what is the initial activity R0 of the sample? units in Bq