beamjockey: Drawing of Bill of the Heterodyne Boys by Phil Foglio. (Default)
An alternate title might be

Inject All You Want. We'll Make More!


Roger Z brought in a clipping about account of a technetium-99m shortage.

My first thought on skimming this was "There's always a technetium-99m shortage. There's always going to be a technetium-99m shortage."

Technetium-99m has a six-hour half-life.

Alas, the news proves to be non-trivial. Hospitals obtain fresh technetium-99m from a supply of molybdenum-99, which has a 66-hour half-life, with 99mTc as a decay product. Make the molybdenum isotope in a reactor, transport it to hospitals, then "milk" fresh technetium from a solution containing 99Mo. This works for many days, then eventually fresh 99Mo is needed.

If the Chalk River reactor is down for a few days, no problem. If it's down for several weeks, trouble.

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beamjockey: Drawing of Bill of the Heterodyne Boys by Phil Foglio. (Default)
beamjockey

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