Tombu took the opportunity to inquire, "Have you got that Rf field-phase generator under control yet?"
The widely-open medullary groove (Rf) is shewn in the centre.
The symbol for rutherfordium.
A synthetic, radioactive element that is produced by bombarding plutonium with carbon or neon ions. Its most stable isotope is Rf 261 with a half-life of 62 seconds. Atomic number 104. See Periodic Table.