1 Introduction In the last two years＇ campaigns of the HL-2A experiments, single null （SN） divertor plasma was achieved. During the 2004 experiment, the supersonic molecular beam injection （SMB） and strong hydro...1 Introduction In the last two years＇ campaigns of the HL-2A experiments, single null （SN） divertor plasma was achieved. During the 2004 experiment, the supersonic molecular beam injection （SMB） and strong hydrogen gas puffing were used for gas fuelling, some unique phenomena have been observed. The plasma parameters achieved are： Ip=320 kA, ne=4.4× 10^19 m^ 3, By=2.2 T, plasma duration t=1580 ms.展开更多
The hydrogen clusters are produced at liquid nitrogen temperature in a supersonic adiabatic expansion of moderate backing pressure gases into vacuum through a Laval nozzle and their averaged size are measured by Rayle...The hydrogen clusters are produced at liquid nitrogen temperature in a supersonic adiabatic expansion of moderate backing pressure gases into vacuum through a Laval nozzle and their averaged size are measured by Rayleigh scattering. The average cluster size N^-c is about 250 hydrogen atoms at a backing pressure 1.0 MPa in these measurements.展开更多
文摘1 Introduction In the last two years＇ campaigns of the HL-2A experiments, single null （SN） divertor plasma was achieved. During the 2004 experiment, the supersonic molecular beam injection （SMB） and strong hydrogen gas puffing were used for gas fuelling, some unique phenomena have been observed. The plasma parameters achieved are： Ip=320 kA, ne=4.4× 10^19 m^ 3, By=2.2 T, plasma duration t=1580 ms.
基金Supported by the National Natural Science Foundation of China （ 19775011, 10075016 and 10475024） This paper is written specially for the SWIP Annual Report
文摘The hydrogen clusters are produced at liquid nitrogen temperature in a supersonic adiabatic expansion of moderate backing pressure gases into vacuum through a Laval nozzle and their averaged size are measured by Rayleigh scattering. The average cluster size N^-c is about 250 hydrogen atoms at a backing pressure 1.0 MPa in these measurements.
