VA char @ GOLEM

i: 0, Time:From:7.39,via:7.90,to:8.40,$B_t$0.13Azooz fit: $a_1$=+2.545e+00,$a_2$=32.87,$a_3$=+2.275e+01,$a_4$=2.68Class fit: $I_{sat}$=1.29,$V^{BPP.LP}_{fl}$=-28.52,$T_e$=11.55,$Ratio_{sat}$=0.03,$\varphi^{BPP}_{pl}$=5.58,$\alpha$=15.63

i: 1, Time:From:8.40,via:8.91,to:9.42,$B_t$0.18Azooz fit: $a_1$=+4.333e+00,$a_2$=5.52,$a_3$=+2.181e+01,$a_4$=3.47Class fit: $I_{sat}$=4.01,$V^{BPP.LP}_{fl}$=-3.91,$T_e$=9.08,$Ratio_{sat}$=0.00,$\varphi^{BPP}_{pl}$=22.84,$\alpha$=33.76

i: 2, Time:From:9.42,via:9.92,to:10.41,$B_t$0.22Azooz fit: $a_1$=+4.549e+00,$a_2$=24.16,$a_3$=+4.396e+01,$a_4$=4.62Class fit: $I_{sat}$=6.08,$V^{BPP.LP}_{fl}$=-13.56,$T_e$=30.00,$Ratio_{sat}$=0.00,$\varphi^{BPP}_{pl}$=21.40,$\alpha$=25.97

i: 3, Time:From:10.41,via:10.92,to:11.43,$B_t$0.26Azooz fit: $a_1$=+4.920e+00,$a_2$=66.09,$a_3$=+5.628e+01,$a_4$=5.47Class fit: $I_{sat}$=6.70,$V^{BPP.LP}_{fl}$=-44.68,$T_e$=27.06,$Ratio_{sat}$=0.00,$\varphi^{BPP}_{pl}$=26.03,$\alpha$=13.68

i: 4, Time:From:11.43,via:11.93,to:12.43,$B_t$0.29Azooz fit: $a_1$=+5.098e+00,$a_2$=57.14,$a_3$=+5.725e+01,$a_4$=1.28Class fit: $I_{sat}$=1.29,$V^{BPP.LP}_{fl}$=-59.26,$T_e$=6.78,$Ratio_{sat}$=0.03,$\varphi^{BPP}_{pl}$=127.97,$\alpha$=9.25

i: 5, Time:From:12.43,via:12.94,to:13.45,$B_t$0.33Azooz fit: $a_1$=+4.551e+00,$a_2$=57.13,$a_3$=+4.874e+01,$a_4$=1.28Class fit: $I_{sat}$=1.48,$V^{BPP.LP}_{fl}$=-59.57,$T_e$=8.19,$Ratio_{sat}$=0.03,$\varphi^{BPP}_{pl}$=74.46,$\alpha$=7.52

i: 6, Time:From:13.45,via:13.95,to:14.44,$B_t$0.36Azooz fit: $a_1$=+4.794e+00,$a_2$=51.06,$a_3$=+5.537e+01,$a_4$=1.50Class fit: $I_{sat}$=1.15,$V^{BPP.LP}_{fl}$=-40.32,$T_e$=4.37,$Ratio_{sat}$=0.00,$\varphi^{BPP}_{pl}$=81.05,$\alpha$=9.46

i: 7, Time:From:14.44,via:14.95,to:15.45,$B_t$0.39Azooz fit: $a_1$=+2.641e+00,$a_2$=17.82,$a_3$=+1.745e+01,$a_4$=0.92Class fit: $I_{sat}$=0.36,$V^{BPP.LP}_{fl}$=-20.26,$T_e$=6.84,$Ratio_{sat}$=0.03,$\varphi^{BPP}_{pl}$=15.10,$\alpha$=6.78

i: 8, Time:From:15.45,via:15.95,to:16.45,$B_t$0.41Azooz fit: $a_1$=+2.372e+00,$a_2$=8.72,$a_3$=+7.898e+00,$a_4$=0.75Class fit: $I_{sat}$=0.55,$V^{BPP.LP}_{fl}$=-17.25,$T_e$=8.57,$Ratio_{sat}$=0.01,$\varphi^{BPP}_{pl}$=13.64,$\alpha$=5.56

i: 9, Time:From:16.45,via:16.96,to:17.47,$B_t$0.43Azooz fit: $a_1$=+2.558e+00,$a_2$=18.30,$a_3$=+2.558e+01,$a_4$=0.96Class fit: $I_{sat}$=0.36,$V^{BPP.LP}_{fl}$=-19.70,$T_e$=6.22,$Ratio_{sat}$=0.03,$\varphi^{BPP}_{pl}$=13.42,$\alpha$=5.15

i:10, Time:From:17.47,via:17.97,to:18.46,$B_t$0.45Azooz fit: $a_1$=+2.427e+00,$a_2$=4.38,$a_3$=+9.427e+00,$a_4$=0.74Class fit: $I_{sat}$=0.97,$V^{BPP.LP}_{fl}$=-17.36,$T_e$=30.00,$Ratio_{sat}$=0.00,$\varphi^{BPP}_{pl}$=14.55,$\alpha$=5.91

i:11, Time:From:18.46,via:18.97,to:19.48,$B_t$0.47Azooz fit: $a_1$=+2.349e+00,$a_2$=14.77,$a_3$=+1.336e+01,$a_4$=1.13Class fit: $I_{sat}$=0.49,$V^{BPP.LP}_{fl}$=-14.61,$T_e$=4.65,$Ratio_{sat}$=0.02,$\varphi^{BPP}_{pl}$=9.51,$\alpha$=7.81

i:12, Time:From:19.48,via:19.98,to:20.48,$B_t$0.48Azooz fit: $a_1$=+2.469e+00,$a_2$=14.71,$a_3$=+2.535e+01,$a_4$=0.95Class fit: $I_{sat}$=0.92,$V^{BPP.LP}_{fl}$=-16.93,$T_e$=12.03,$Ratio_{sat}$=0.00,$\varphi^{BPP}_{pl}$=12.34,$\alpha$=5.20

i:13, Time:From:20.48,via:20.98,to:21.49,$B_t$0.49Azooz fit: $a_1$=+2.457e+00,$a_2$=19.85,$a_3$=+3.359e+01,$a_4$=0.90Class fit: $I_{sat}$=0.48,$V^{BPP.LP}_{fl}$=-20.87,$T_e$=10.36,$Ratio_{sat}$=0.01,$\varphi^{BPP}_{pl}$=12.70,$\alpha$=4.35

i:14, Time:From:21.49,via:21.99,to:22.49,$B_t$0.50Azooz fit: $a_1$=+2.711e+00,$a_2$=12.66,$a_3$=+2.606e+01,$a_4$=0.60Class fit: $I_{sat}$=0.54,$V^{BPP.LP}_{fl}$=-21.30,$T_e$=9.41,$Ratio_{sat}$=0.00,$\varphi^{BPP}_{pl}$=23.51,$\alpha$=2.75

i:15, Time:From:22.49,via:23.00,to:23.50,$B_t$0.51Azooz fit: $a_1$=+2.056e+00,$a_2$=18.78,$a_3$=+1.985e+01,$a_4$=0.88Class fit: $I_{sat}$=0.79,$V^{BPP.LP}_{fl}$=-21.45,$T_e$=10.44,$Ratio_{sat}$=0.00,$\varphi^{BPP}_{pl}$=8.64,$\alpha$=3.84

i:16, Time:From:23.50,via:24.00,to:24.50,$B_t$0.51Azooz fit: $a_1$=+1.886e+00,$a_2$=19.12,$a_3$=+2.460e+01,$a_4$=0.58Class fit: $I_{sat}$=0.41,$V^{BPP.LP}_{fl}$=-25.94,$T_e$=11.16,$Ratio_{sat}$=0.00,$\varphi^{BPP}_{pl}$=9.77,$\alpha$=1.08

i:17, Time:From:24.50,via:25.01,to:25.51,$B_t$0.51Azooz fit: $a_1$=+1.076e+00,$a_2$=17.19,$a_3$=+1.593e+01,$a_4$=0.67Class fit: $I_{sat}$=0.16,$V^{BPP.LP}_{fl}$=-25.07,$T_e$=6.17,$Ratio_{sat}$=0.03,$\varphi^{BPP}_{pl}$=3.56,$\alpha$=1.11

i:18, Time:From:25.51,via:26.01,to:26.52,$B_t$0.50Azooz fit: $a_1$=+1.188e+00,$a_2$=15.48,$a_3$=+3.157e+01,$a_4$=0.62Class fit: $I_{sat}$=0.15,$V^{BPP.LP}_{fl}$=-25.57,$T_e$=9.38,$Ratio_{sat}$=0.02,$\varphi^{BPP}_{pl}$=4.21,$\alpha$=-0.14

i:19, Time:From:26.52,via:27.02,to:27.53,$B_t$0.49Azooz fit: $a_1$=+9.643e-01,$a_2$=13.52,$a_3$=+1.394e+01,$a_4$=0.56Class fit: $I_{sat}$=0.10,$V^{BPP.LP}_{fl}$=-31.60,$T_e$=6.49,$Ratio_{sat}$=0.03,$\varphi^{BPP}_{pl}$=3.39,$\alpha$=0.86

i:20, Time:From:27.53,via:28.03,to:28.52,$B_t$0.49Azooz fit: $a_1$=+1.509e+00,$a_2$=75.89,$a_3$=+2.352e+01,$a_4$=2.73Class fit: $I_{sat}$=0.60,$V^{BPP.LP}_{fl}$=-33.61,$T_e$=4.87,$Ratio_{sat}$=0.03,$\varphi^{BPP}_{pl}$=2.46,$\alpha$=20.39

Home

BPP experiments @ the tokamak GOLEM

Essential parameters:

Experimental setup

Ball pen probe @ North-East port

The discharge #23451

Basic diagnostics

The BPP data vs diagnostics

The BPP raw data

Maxima and minima localization in bpp_voltage

Final movie

Experimental Photo

Resources

References

$i$	Time			$B_t$	Azooz fit parameters $I(a,V_{bias})=\exp[a_1 \tanh\{(V_{bias}+a_2)/a_3\}]+a_4$					Classical fit parameters $I(V_{bias},I_{sat},V^{BPP.LP}_{fl},T_e,C)=-I_{sat}(1-C(V_{bias}-V^{BPP.LP}_{fl}))*(1-\exp((V_{bias}-V^{BPP.LP}_{fl})/T_e)$				$Ratio_{sat}$	$\varphi^{BPP}_{pl}$	$\alpha$	$Pl_{pos}$ [mm]
	Start	Middle	End		$a_1$	$a_2$	$a_3$	$a_4$	Inflex [V]	$I_{sat}$	$V^{BPP.LP}_{fl}$	$T_e$	C
0	7.39	7.90	8.40	0.13	2.54	32.87	22.75	2.68	-13.88	1.29	-28.52	11.55	3.00E-02	5.58	15.63	3.82	-3.42
1	8.40	8.91	9.42	0.18	4.33	5.52	21.81	3.47	18.17	4.01	-3.91	9.08	1.05E-16	22.84	33.76	4.15	-2.60
2	9.42	9.92	10.41	0.22	4.55	24.16	43.96	4.62	24.60	6.08	-13.56	30.00	8.15E-04	21.40	25.97	1.32	-0.16
3	10.41	10.92	11.43	0.26	4.92	66.09	56.28	5.47	-1.49	6.70	-44.68	27.06	1.96E-22	26.03	13.68	2.16	0.08
4	11.43	11.93	12.43	0.29	5.10	57.14	57.25	1.28	9.64	1.29	-59.26	6.78	3.00E-02	127.97	9.25	10.11	0.53
5	12.43	12.94	13.45	0.33	4.55	57.13	48.74	1.28	-2.98	1.48	-59.57	8.19	3.00E-02	74.46	7.52	8.19	1.44
6	13.45	13.95	14.44	0.36	4.79	51.06	55.37	1.50	11.76	1.15	-40.32	4.37	4.37E-17	81.05	9.46	11.39	2.33
7	14.44	14.95	15.45	0.39	2.64	17.82	17.45	0.92	-2.99	0.36	-20.26	6.84	3.00E-02	15.10	6.78	3.95	3.02
8	15.45	15.95	16.45	0.41	2.37	8.72	7.90	0.75	-2.38	0.55	-17.25	8.57	1.19E-02	13.64	5.56	2.66	2.95
9	16.45	16.96	17.47	0.43	2.56	18.30	25.58	0.96	2.99	0.36	-19.70	6.22	3.00E-02	13.42	5.15	4.00	1.82
10	17.47	17.97	18.46	0.45	2.43	4.38	9.43	0.74	3.27	0.97	-17.36	30.00	4.58E-03	14.55	5.91	0.78	0.47
11	18.46	18.97	19.48	0.47	2.35	14.77	13.36	1.13	-4.16	0.49	-14.61	4.65	2.31E-02	9.51	7.81	4.83	-0.60
12	19.48	19.98	20.48	0.48	2.47	14.71	25.35	0.95	6.01	0.92	-16.93	12.03	3.16E-16	12.34	5.20	1.84	-1.13
13	20.48	20.98	21.49	0.49	2.46	19.85	33.59	0.90	7.58	0.48	-20.87	10.36	1.30E-02	12.70	4.35	2.43	-1.43
14	21.49	21.99	22.49	0.50	2.71	12.66	26.06	0.60	9.78	0.54	-21.30	9.41	3.65E-03	23.51	2.75	2.56	-1.74
15	22.49	23.00	23.50	0.51	2.06	18.78	19.85	0.88	-4.16	0.79	-21.45	10.44	9.25E-16	8.64	3.84	2.42	-2.25
16	23.50	24.00	24.50	0.51	1.89	19.12	24.60	0.58	-2.00	0.41	-25.94	11.16	6.18E-04	9.77	1.08	2.42	-1.85
17	24.50	25.01	25.51	0.51	1.08	17.19	15.93	0.67	-9.72	0.16	-25.07	6.17	2.63E-02	3.56	1.11	4.24	-1.93
18	25.51	26.01	26.52	0.50	1.19	15.48	31.57	0.62	0.50	0.15	-25.57	9.38	1.79E-02	4.21	-0.14	2.71	-1.44
19	26.52	27.02	27.53	0.49	0.96	13.52	13.94	0.56	-7.50	0.10	-31.60	6.49	3.00E-02	3.39	0.86	5.00	-1.10
20	27.53	28.03	28.52	0.49	1.51	75.89	23.52	2.73	-61.82	0.60	-33.61	4.87	3.00E-02	2.46	20.39	11.08	4.09