ISOLDE mints isotopes of chromium

CERN's nuclear physics facility, ISOLDE, has minted a new coin in its impressive collection of isotopes. The facility has forged neutron-rich isotopes of the element chromium for the first time, and in prodigious quantities. These isotopes were measured by the precision balance ISOLTRAP, which has been performing mass measurements at ISOLDE for the last 30 years. The new mass values, reported in Physical Review Letters, are up to 300 times more precise than previous results, offering new insight...