Abstract
A magneto-optic trap (MOT) can provide a well-polarized, backing-free, localized source of radioactive atoms for α-decay experiments. We have trapped approximately 6000 atoms of 38Km (t1/2 = 0.925 s) and 2000 atoms of 37K (1.226 s) produced at the TRIUMF on-line separator TISOL in a vapor-cell MOT. We have measured optical isotope shifts and deduced the nuclear charge radii, which show an unusual lack of change at the neutron number N = 20 shell closure. Plans include a search for scalar contributions to the β+ - v correlation in the 0+--→0+ decay of 38Km.
| Original language | English |
|---|---|
| Pages (from-to) | 375-378 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 79 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jan 1 1997 |
| Externally published | Yes |