Nuclear spins and magnetic moments of 20NA and 36K by β-radiation detected optical pumping

Prospects for laser spectroscopy, ion chemistry and mobility measurements of superheavy elements in buffer-gas traps

“…Instead of directly pumping the fission isomer via a resonance transition, they were polarized by spin-exchange collisions with polarized rubidium vapor, the latter achieved by optical pumping. A similar β-radiation detected optical pumping (β-RADOP) method was successfully employed for the investigation of the ground state hyperfine structure of 36,37 K and 20 Na by [75,85]. The experiment of [14] was not successful, essentially because aggressive chemical compounds of the rubidium vapor were frequently destroying the thin organic entrance window of the optical cell.…”

Nuclear spins of76Rb and119Cs by? radiation detected optical pumping

“…However, fi-RADOP is more sensitive than ABMR. While the latter requires sources of minimum 106-107 atoms/s, the fl-RADOP method has been proved to work with intensities as low as 104 atoms/s [-3] and to be applicable to isotopes with a half life as short as 340 ms [26]. Therefore it was applied to the extreme neutron-deficient alkali isotopes where ABMR suffers from intensity problems.…”

Nuclear Radiation Detected Optical Pumping of neutron-deficient Hg isotopes

“…As nature was kind enough to quantize the nuclear spin, the accuracy of (8) in the approximation ~A 2= 0 is by far sufficient for an unambiguous determination of/, g~, A, B and IS by entering the measured positions of the three hfs levels and the NMR frequency into (6), (7) and (11). Fig.…”

“…The fl-RADOP method has been developed with inbeam experiments on short-lived alkalies using spin exchange polarization . From the magnetic resonance experiment in the 2S~/2 atomic ground state of 8Li, [10] 2~ [7,[11][12][13] 36'37K and 8~ [12] information on nuclear spins and magnetic dipole moments has been gained. y-RADOP has been reported for 2~ monitored via the 276 keV T1 line [14] and for a99mHg monitored via the M4-E2…”