Edge Probe 5/10/2004

Edge ProbeEdge Probe5/10/20045/10/2004

G.S.XuG.S.Xu

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, P.R.ChinaInstitute of Plasma Physics, Chinese Academy of Sciences, Hefei, P.R.China**[email protected]@ipp.ac.cn

HT-7HT-7ASIPPASIPP

HT-7HT-7ASIPPASIPP

-0.5 0.0 0.5 1.0 1.50

25

50

75

100I s (

mA

)

r ( cm )

decay length = 0.5 cm

发现手动探针定位与去年相同 r = 27 cm

HT-7HT-7ASIPPASIPP

farmer fork probefarmer fork probeion-ion ion-ion 碰撞阻尼 碰撞阻尼 zonal flowszonal flows

3 probe3 probeheadsheads

HT-7HT-7ASIPPASIPP

气动石墨探针

0 500 10000

500

1000

1500

f ( kHz )

Aut

o P

ower

Spe

ctru

m

E:\data\20040505\66591\ , V_f , \Deltar = 1 cm ,500-900 ms

0 500 10000

100

200

300

400

f ( kHz )

Cro

ss P

ower

Spe

ctru

m

0 500 10000

0.2

0.4

0.6

0.8

f ( kHz )

Nor

mal

ized

Sca

le

Coherent Correlation Spectrum

0 500 1000-1

-0.5

0

0.5

1

f ( kHz )

k ( r

ad/c

m )

手动和气动两探针之间长距离偶合证实 zonal flows 的存在和去年实验结果完全吻合