On 22 Jun 2018 at 7:47, David Hillman wrote:

> The Question:
> This element is not found in nature in its pure form. The US Nuclear
> Regulatory Commission has made a radioisotope of this element
> available for commercial use at $10 per microgram. Neutron penetration
> into materials makes this element useful in detection instruments such
> as fuel rod scanners; neutron radiography of aircraft and weapons
> components to detect corrosion, bad welds, cracks and trapped
> moisture; and in portable metal detectors. This element derives its
> name from a university in the United States. Which element is being
> described?

I vote for Californium.

Regards
Matthias
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