The First Isochronous Mass Measurements at CSRe

Key words: 
• radiotive ion beam /
• mass /
• timeofflight /
• HIRFLCSR

Abstract: With the commissioning of the Cooler Storage Ring at the Heavy Ion Research Facility in Lanzhou (HIRFLCSR), a pilot experiment operating the CSRe in isochronous mode to test the power of HIRFLCSR for measuring the mass of the shortlived nucleus was performed in December of 2007. The fragments with A/q = 2 of 36Ar were injected into CSRe and their revolution frequencies were measured with a fast time pickup detector with a thin foil in the circulating path of the ions. The preliminary result is presented. The result shows the potential of CSRe for mass measurements of shortlived nuclei.