I won't claim to know much about this, but the article claims that the graphite works because it emits "short-range radiation", which I'm assuming refers to th

I won't claim to know much about this, but the article claims that the graphite works because it emits "short-range radiation", which I'm assuming refers to the carbon-14 emitting beta radiation. Depleted Uranium and the stuff that comes out of depleted uranium (which I think would account for most of the spent fuel in the United States) emits beta and even shorter alpha radiation. Does that mean that the concept could work with depleted uranium?