Difference between revisions of "Column of Water Length"
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<math>n = \frac{density}{weight(mols)} \times N = \frac{atoms}{cm^{3}}</math> | <math>n = \frac{density}{weight(mols)} \times N = \frac{atoms}{cm^{3}}</math> | ||
| − | <math>n = | + | <math>n = \frac{ \frac{g}{cm^{2}} }{ \frac{g}{mol}} \times \frac{atoms}{mol} => \frac{atoms}{cm^{3}}</math> |
Revision as of 14:57, 16 July 2008
Column of Water Needed to Cut Photon Count in Half at 10 MeV
e -n σ t