spallation product

Most prominent in this region are beautifully pulsing and transient flowers, spallation products of heavy nova-driven particles colliding with the ubiquitous hydrogen of interstellar space.

In the U.S., it is primarily produced in proton accelerators: At Los Alamos National Laboratory, it may be separated out as a spallation product, after proton irradiation of molybdenum or rubidium.

If there is' anti-matter in those things, there'll be local cell damage from the spallation products..." ę"If there is anti-matter in those things, they're going to have a lot more than cancer to worry about," Scorpio said.

Be and Al are produced when a portion of a quartz crystal (SiO) is bombarded by a spallation product: oxygen of the quartz is transformed into Be and the silicon is transformed into Al.