Environment & Energy

...I recall.

The Netherlands I believe is refurbishing or replacing the Petten reactor. ⁹⁹Mo has a half-life of 64 hours, so it is possible to ship it from Europe to get ^99mTc. It can also be made in accelerators, and I believe it is.

The MRI issue is very, very, very serious.

Helium is not a renewable resource. Small amounts of it may be accessible from used nuclear fuel from alpha decay, but it could not sustain world demand. Some supply might be obtained if americium were used as a fuel, via ²⁴²Cm decay but not much.

Thanks for making the points. They are important ones.