Separating the isotopes of Boron is much easier than Uranium because the ratio of the mass differences is much larger.
Boron is used extensively in fission power plants as a neutron absorber – here B-10 +n -> Li-7 +He-4. Also there are well established industrial processes for purifying and enriching Boron for this purpose (where they want the B-10) so the ‘depleted’ B-11 is already there as a byproduct.
B-11 is also used in preference to B-10 in electronics, especially in high radiation environments like satellites. Where you want to avoid the B-10 +neutron reaction at best flipping bits or worse permanently damaging the semiconductor.
James
