Laser cooling is the most promising method to achieve high phase-space densities,even crystalline beams for relativistic heavy ion at storage rings[1].While a pure ion beam is usually desirable for laser cooling exper...Laser cooling is the most promising method to achieve high phase-space densities,even crystalline beams for relativistic heavy ion at storage rings[1].While a pure ion beam is usually desirable for laser cooling experiments to avoid spurious heating effects by any non-cooled ion species,we have found the C^(3+) ion beams produced by an Electron Cyclotron Resonance(ECR)ion source to be mixed with a significant fraction of O^(4+),because these two ions have almost the same mass-to-charge ratio and could not be separated by the analyzing magnets.Therefore,both ion species were injected into the CSRe and present during all experiments.展开更多
Laser cooling is the most promising method to achieve high phase-space densities, even crystalline beams for relativistic heavy ion at storage rings[1]. A test laser cooling experiment has been performed with 12C3+ io...Laser cooling is the most promising method to achieve high phase-space densities, even crystalline beams for relativistic heavy ion at storage rings[1]. A test laser cooling experiment has been performed with 12C3+ ions at the CSRe. In this experiment, the 12C3+ ions were produced from an electron cyclotron resonance (ECR) ion source, and due to the residual gas and the injection gases such as CO and CO2, 16O4+ ions will be produced at the same time.展开更多
基金National Natural Science Foundation of China(11221064)External Cooperation Program of CAS(GJHZ1305)。
文摘Laser cooling is the most promising method to achieve high phase-space densities,even crystalline beams for relativistic heavy ion at storage rings[1].While a pure ion beam is usually desirable for laser cooling experiments to avoid spurious heating effects by any non-cooled ion species,we have found the C^(3+) ion beams produced by an Electron Cyclotron Resonance(ECR)ion source to be mixed with a significant fraction of O^(4+),because these two ions have almost the same mass-to-charge ratio and could not be separated by the analyzing magnets.Therefore,both ion species were injected into the CSRe and present during all experiments.
基金National Natural Science Foundation of China(11504388), West Light Doctoral Foundation of Chinese Academy of Sciences
文摘Laser cooling is the most promising method to achieve high phase-space densities, even crystalline beams for relativistic heavy ion at storage rings[1]. A test laser cooling experiment has been performed with 12C3+ ions at the CSRe. In this experiment, the 12C3+ ions were produced from an electron cyclotron resonance (ECR) ion source, and due to the residual gas and the injection gases such as CO and CO2, 16O4+ ions will be produced at the same time.
