Difference between revisions of "511 keV photon attenuation in tungsten"
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(Created page with '[http://physics.nist.gov/PhysRefData/XrayMassCoef/tab3.html Photon attenuation in elemental matters] For 0.5 MeV photon, <math>\mu/\ru = 0.1378~(cm^2/g)</math>') |
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[http://physics.nist.gov/PhysRefData/XrayMassCoef/tab3.html Photon attenuation in elemental matters] | [http://physics.nist.gov/PhysRefData/XrayMassCoef/tab3.html Photon attenuation in elemental matters] | ||
| − | For 0.5 MeV photon, <math>\mu/\ | + | https://wiki.iac.isu.edu/index.php/TF_SPIM_e-gamma#Mass_Attenuation_Coefficient |
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| + | For 0.5 MeV photon, <math>\mu / \rho = 0.1378~(cm^2/g)</math>, or <math>\mu_{en} / \rho = 0.0744~(cm^2/g)</math> | ||
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| + | <math>\frac{\mu}{rho}=0.1378\frac{cm^2}{g}</math> | ||
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| + | Tungsten density <math>{rho}=19.25 g/cm^3</math> | ||
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| + | so, <math>\mu = 2.65265/cm = 0.265265/mm</math> | ||
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| + | <math> I = I_0 e^{-\mu x}</math> = intensity of light | ||
| + | |||
| + | if x=1mm, <math>\frac{1}{I_0}=0.767</math> | ||
Latest revision as of 20:44, 20 September 2012
Photon attenuation in elemental matters
https://wiki.iac.isu.edu/index.php/TF_SPIM_e-gamma#Mass_Attenuation_Coefficient
For 0.5 MeV photon, , or
Tungsten density
so,
= intensity of light
if x=1mm,