Progress of laser cooling of ¹²C³⁺ ions at the CSRe

We have performed a test run for laser cooling experiments with ¹²C³⁺ ion beams at an energy of 122 MeV/u at the CSRe with a pulsed laser. During this beamtime a lot of progress have been made. This was the first time we could successfully separate the ¹²C³⁺ ions and ¹⁶O⁴⁺ ions in the Schottky spectrum with the help of electron cooling. And our newly installed CPM detector worked well during the experiment. We tried to see effects from the interaction of the pulsed laser light with the stored ¹²C³⁺ ion beams, but no cooling effects could yet be observed.