Q. No 04: a). Mention some necessary steps to minimize the production of bremsstrahlung during beta-ray shielding.
Q: 5. Answer the following decay problems: a. Fluorine-21 has a half life of approximately 5 seconds.…
A: 5) a) Given, half life is, t12=5 s total time is, t = 30s so number of half life is, n=tt12=30s5s=6…
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Q: Ionizing radiation enters a Geiger tube with 1.45 MeV of energy. As the radiation passes through the…
A: Given, The energy of Geiger radiation, E=1.45 MeV The energy required by each ion pair, Ei=30 eV
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Q: Calculate the energy retained by an beta particle, if its incoming energy is 3.9 keV and it ionizes…
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A: Given that,Mass of patient : m = 75 (kg)Here we need to find the total energy deposited in the…
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A: “Since you have posted multiple questions, we will provide the solution only to the first question…
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Q: Calculate the current produced when alpha particles (10 MeV) pass through a gas in ionization…
A: rate of particles = 600 particles / h = 600 /3600 particles/ second = 1/6 particles/ second We…
Q: A 250 mg sample at 228 Ac has an activity of 207 * 10 ^ 16 atoms per second. What is the half life?
A:
Q: The point source Co-60 emits gamma with energies of 1.17 MeV and 1.33 MeV. Each of these energies…
A: Energy of gamma rays = 1.17 Mev and 1.33Mev At Both energy same number of photon emitted Flux…
Q: Ps) What is the closest distance a 7.5 MeV alpha particle can reach when incident na gold foil?
A: Given: Energy of alpha Particle=7.5MeV To find: Closest Distance alpha particle can reach when…
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- A point source of thermal neutrons is placed at the centre of a large sphere of beryllium. Deduce the spatial distribution of neutron density in the sphere. Estimate what its radius must be if less than 1% of the neutrons are to escape through the surface. Find also the neutron density near the surface in this case in terms of the source strength. At. Wt of beryllium = 9 Density of beryllium = 1.85 g/cc Avagadro number = 6 x 1023 atoms/g atom Thermal neutron scattering cross-section on beryllium = 5.6 barns Thermal neutron capture cross-section on beryllium 10 mb (at velocity v = 2,200 m/s) =3The linear absorption coefficient for 5-MeV gamma rays in lead is 78 m-1. Find the thickness of lead required to reduce by one- fourth the intensity of beam of such gamma rays. O A. 8.9 mm O B. 17.8 mm OC. 3.7 mm OD. 1.9 mm O E. 7.4 mm