Yes Vermont Yankee – The NRC has received three related petitions against continuing to use Linear No Threshold (LNT) and ALARA (As Low As Reasonably Achievable) for rule-making. The comment period is now open on those petitions. In this post, Meredith Angwin gives background information and explains why people should comment…or be prepared to evacuate Denver or ban airplane travel because of its high background radiation
They have cleaned the Tungsten. There was a lot of non-trivial engineering needed.
LPP fusion is working out theoretically ways to transfer more of the energy from the electron beam to the heating of plasmoid, leaving less available to damage the anode. This work involves mixing in heavier gases and is still under way. We’ll report more on it next month. Reassembly of the cleaned electrodes is now almost complete. LPP Fusion expects new experiments in early September.
SOURCES – Wikipedia, yes vermont yankee