Why is the attenuation coefficient of lead greater at 0.143 MeV (lead attenuation coefficient 2.2 cm2/g)...
Given the following information, what is the mass attenuation coefficient of this material? What is material? Mean density = 2.33 g/cm3 Io = 2 Mev Thickness (cm) Measured gamma emitted (Mev) 2.0 1.65 2.3 1.53 3.0 1.40 3.1 1.42 4.2 1.29 4.2 1.31 5.0 1.16
Beta rays incident on a specific material of mass thickness attenuation factor t = 0.33 g/cm2, and a mass thickness T = 0.18 g/cm2 . The percentage of radiation passes through the material (i.e., I(T)/I0 % ) is (two significant figures). Use equation 1 in the manual.
Beta rays incident on a specific material of mass thickness attenuation factor t = 0.25 g/cm2, and a mass thickness T = 0.13 g/cm2 . The percentage of radiation passes through the material (i.e., I(T)/I0 % ) is (two significant figures). Use equation 1 in the manual. I got 97% apparently thats wrong.
The mass attenuation coefficient for 200 keV x-rays in iron is .1460cm2/g. The density of iron is 7.874 g/cm3. If 104200 keV x-ray photons are incident on an iron plate 1.50 cm thick, how many x-ray photons will pass through the plate
A copper penny has a mass of 2.2 g. Determine the energy (in Mev) that would be required to break all the copper nuclei into their constituent protons and neutrons. Ignore the energy that binds the electrons to the nucleus and the energy that binds one atom to another in the structure of the metal. For simplicity, assume that all the copper nuclei are 29 Cu (atomic mass = 62.939 598 u). Energy required = Number Units the tolerance is...
The mass absorption coefficient for chromium measured using the copper Ka1 line is 39.8 cm2/g. Calculate the thickness of a chromium foil that was found to transmit 36.8 % of the incident power of a beam of copper Ka1 radiation. The density of chromium is 7.15 g/cm3. (Hint: Use the mass absorption coefficient relationship.)
Q3. You find that the diffusion coefficient D of boron is a factor of 10 greater than that of arsenic at 1150 C and that the solid solubility of arsenic is a factor of 10 higher than that of boron: Ds-10 DAS Co(As) 10 Co(B) For the same predeposition time t: (a) Which species, boron or arsenic, has the largest diffusion length? (b) Which has the largest number of atoms/cm2 diffused into Si?
If the T ratio is greater than plus or minus 3.5 it suggests the coefficient is (useful or not useful) and why?
please show all steps. The decomposition reaction of COC12 is, COCldg,-CO(g) + Cl2(g) Kc = 2.2 × 10-10. The initial concentration of CoCl is 0.3166 M 3. the (a) At equilibrium, the concentrations of the products are concentration of reactant. (A) greater than (B) less than (D) unknown because more information is needed to determine. (C) equal to (b) Fill the ICE table below COC: Ico Initial concentration (M) Changes (M) Equilibrium concentration (M) -x (c) Calculate the equilibrium concentration...
is this a stationary series? why? G Group: UNTITLED Workfile: LAST:Untitled\ View Proc Object Print Name Freeze Default х Options Zoom Position Sample Sheet Stats Spec 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 1980 2000 2005 1985 1990 1995 2010 2015 2019Q3 1979Q1