Absorption of X-rays

The absorption of X-rays in different types of water-saturated sediment cores (I/I_o) may be calculated by the formula:

I/I_o = e^{-(u/d . d . x)}w ^{- (u/d . d . x)}s₁....^{-(u/d . d . x)}s_n

where e is the base of Napierian logarithms, d the density, x the thickness, and u/d the mass absorption coefficient at selected levels of radiation energy for water (w) and for different types of solids (s) in the sediment core. Inhomogeneities in the X-rayed sediment core will thus cause variable darkening of the X-ray film.

 Back

 Back to my front page.