CAJ | 학술논문

为HIRFL-CSR团簇内靶设计加工了新的供气系统,拆换了原有的喷嘴,对氢气和氩气进行了新的实验,获得了氢气和氩气的稳定团簇束,解决了困扰团簇靶稳定运行的喷嘴堵塞问题.获得的氢团簇柬密度为1.75x1013atoms/cm3,好于德国GSI内靶对氢束所达到的1X1013atoms/cm3.研究了团簇束的衰减,测量了氢束和氩束的有效靶厚,研究了团簇靶系统对这两种工作气体的长期运行稳定性.对氢和氩两种工作气体,各级气压呈现了良好的稳定性,说明在实验的时间范围内,团簇靶运行稳定.
위HIRFL-CSR단족내파설계가공료신적공기계통,탁환료원유적분취,대경기화아기진행료신적실험,획득료경기화아기적은정단족속,해결료곤우단족파은정운행적분취도새문제.획득적경단족간밀도위1.75x1013atoms/cm3,호우덕국GSI내파대경속소체도적1X1013atoms/cm3.연구료단족속적쇠감,측량료경속화아속적유효파후,연구료단족파계통대저량충공작기체적장기운행은정성.대경화아량충공작기체,각급기압정현료량호적은정성,설명재실험적시간범위내,단족파운행은정.
A new gas delivery system is designed and installed for HIRFL-CSR cluster target.The original blocked nozzle is replaced by a new one with the throat diameter of 0.12mm.New test of hydrogen and argon gases are performed.The stable jets can be obtained for these two operation gases.The attenuation of the jet caused by the collision with residual gas is studied.The maximum achievable H2 target density is 1.75 x 1013 atoms/cm3 with a target thickness of6.3x 1012 atoms/cm2 for HIRFL-CSR cluster target.The running stability of the cluster source is tested both for hydrogen and argon.The operation parameters for obtaining hydrogen jet are optimized.The results of long time running for H2 and Ar cluster jets look promising.The jet intensity has no essential change during the test for H2 and Ar.