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Suppose that we have a monochromatic non-diverging beam of x rays that are incident on a slab of Pb. Inside the Pb plate there are three apertures (openings) that allow the beam of x rays to be incident on a water phantom as shown in the figure below.
(a) In the compartment of water denoted by the dotted line, calculate:
(i) The number of photoelectric interactions per second,
(ii) The number of Compton interactions per second
(iii) The number of coherent scatters interactions per second.
(iv) The energy absorbed per second.
(b) What thickness of air (dair) is needed in order that the number of Compton scatter interactions in air are the same as in the volume of water in (a)?
(c) What thickness of bone (dbone) is needed in order that the number of Compton scatter interactions in bone are the same as in the volume of water in (a)?
Planck equation The quantum mechanical equation relating to the energy of a particular photon E to its frequency nu: E = h nu.
We all know that some astronaut had landed in the moon to check out how''s going on the moon. But why only a few astronaut? People created the Apollo and they made it. They sent so
derive an expression for density of states and hence deduce an expression for carrier concentration of metals
POPULATION INVERSION and LUMINOUS FLUX: POPULATION INVERSION: The process in which number of electrons (N ) in a higher2 energy state called metastable state of an active medi
The power distribute to a 15 watt light bulb in normal operation is 15 watts. In normal operation how greatly energy is delivered to such a bulb in an hour? Feedback:
What are the concepts of distance and displacement?
how CPH is able produce all bosons? Answer; the fermions produce their bosons. Look at the pair production that before of pair there is not boson, however after pair bosons app
mass=volume * density.By using this formula we can find the mass of sphere. Volume of sphere=(4/3)pi*r^3 V=(4/3)*3.14*(1*10^-2)^3=4.187*10^-6 Mass=(4.187*10^-6)*900=3768*10^-6kg
michelson interferometer principle
Alpha particles are nuclei of: a) Hydrogen b) Helium c) Oxygen d) Nitrogen Ans: Alpha particles are nuclei of helium.
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