Speaker
Description
The high-intensity beams available at RIBF provide new opportunities for precision missing-mass spectroscopy with reactions using primary ion beams. One of the essential techniques to achieve excellent missing-mass resolution is the realization of dispersion-matched ion optics, which minimizes the effects of the momentum spread of the incident beams. We have developed a dispersion-matched ion-optical mode for the entire system —from the SRC cyclotron and beam transport line, reaction in the target, to the BigRIPS spectrometer— and established a practical tuning procedure. This mode was successfully applied in two experiments conducted in 2021: one for spectroscopy of deeply-bound pionic atoms and the other for the search for double Gamow-Teller giant resonances. In this contribution, we summarize the design, development, and operational performance of this newly established dispersion-matched ion-optical mode.
| Email address | yoshiki.tanaka@riken.jp |
|---|---|
| Classification | Ion optics and spectrometers |
