In the field of nuclear engineering, absorption hardening is the increase in average energy of neutrons in a population by preferential absorption of lower-energy neutrons. This occurs because absorption cross-sections typically increase for lower neutron energies.
References
[edit]- Weston M. Stacey, Nuclear Reactor Physics, 2nd ed. (Wiley-VCH, 2007)
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction