And that is measured as a macroscopic cross section of absorptionthermal divided by the integral of all energies in terms of absorptions.
那是被测量的,作为吸收热能的,宏观横截面,除以全部的,吸收的能量的乘积。
2
We can then look at uranium 238 which has a relatively low absorptionthermal energy range and essentially has no fission cross section which is why we call uranium 238 a fertile atom.
In the thermal medium, the stimulated thermal gluon emission reduces while absorption increases the parton's energy. The net contribution result in a reduction of the parton energy loss.