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Publication Figures

Publication Date:
2019-03-22

First Author:
K. K. Kirov

Title:
Analysis of the fusion performance, beam-target neutrons and synergistic effects of JET high performance pulses

Paper Identifier:
CP/20/330

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Figure Reference Title Description Number of Figure Data Items Identifier Download Figure Details
Figure 1a Figure 1a a) Time traces of JET pulse #96482, 3.3T/3.5MA high performance baseline, top to bottom, PNB, PRF and bulk radiated power Prad, line integrated density and central electron temperature, total neutron count; b) same as a) but for JET pulse #96947, 3.4T/2.25MA high performance hybrid. 0 CF/20/331 Download
Figure 1b Figure 1b a) Time traces of JET pulse #96482, 3.3T/3.5MA high performance baseline, top to bottom, PNB, PRF and bulk radiated power Prad, line integrated density and central electron temperature, total neutron count; b) same as a) but for JET pulse #96947, 3.4T/2.25MA high performance hybrid. 0 CF/20/332 Download
Figure 2 Figure 2 Calculated NTOT,calc vs. measured NTOT,meas total neutron counts for all recent JET high performance pulses. Baseline pulses are in blue crosses, whilst hybrid pulses are in red circles. The deviation of the calculated data from the measurements by 10% and 20% are shown by grey dashed and dash-dotted lines respectively. 1 CF/20/333 Download
Figure 3 Figure 3 Calculated Wcalc vs. measured via diamagnetic measurements Wmeas plasma energy. Baseline pulses are in blue crosses, whilst hybrid pulses are in red circles. The deviation of the calculated data from the measurements by 10% and 20% are shown by grey dashed and dash-dotted lines respectively. 1 CF/20/334 Download
Figure 4 Figure 4 Neutron spectrum from TOFOR diagnostic for JET pulse #96482, 12.3-12.5s. Measured time-of-flight, tTOF , (black points) is compared to total predicted (red) which is superposition of result from TRANSP fast ions distribution function (blue dashed line) and scattered neutrons (dash-dotted line). 0 CF/20/335 Download
Figure 5a Figure 5a a) Neutron camera lines of sights for 10 horizontal and 9 vertical cannels. Provided is the plasma equilibrium and calculated neutron rates, RTOT(R,Z) in 1/s/cm3, colour mapped in plasma cross-section for 96482K75, 12.25s. 1 CF/20/336 Download
Figure 5b Figure 5b b) Neutron camera data for lines 1 to 19 (black) for pulse #96482, averaged between 12s-12.5s. Results are compared to TRANSP run 96482K75 (blue points) where calculated neutrons were found to be over-calculated by about 15% of measured ones in the investigated time interval. 1 CF/20/337 Download
Figure 6a Figure 6a Figure 6: Total neutron counts as calculated by TRANSP, N TOT , versus electron density a) electron temperature b) and ion temperature c) in the core at ?=0.2 for JET’s high-performance 3.3T/3.5MA baseline pulses. The pedestal values, taken at ?=0.8, are fixed and provided at the bottom of the graphs. 1 CF/20/342 Download
Figure 6b Figure 6b Figure 6: Total neutron counts as calculated by TRANSP, N TOT , versus electron density a) electron temperature b) and ion temperature c) in the core at ?=0.2 for JET’s high-performance 3.3T/3.5MA baseline pulses. The pedestal values, taken at ?=0.8, are fixed and provided at the bottom of the graphs. 1 CF/20/344 Download
Figure 6c Figure 6c Figure 6: Total neutron counts as calculated by TRANSP, N TOT , versus electron density a) electron temperature b) and ion temperature c) in the core at ?=0.2 for JET’s high-performance 3.3T/3.5MA baseline pulses. The pedestal values, taken at ?=0.8, are fixed and provided at the bottom of the graphs. 1 CF/20/346 Download
Figure 7a Figure 7a Figure 7: (top row) The ratio of the thermal neutron counts, N TH , to power losses, P LOSS , versus normalised beta, ? N , and product B t ?; (bottom row) The ratio of the total neutron counts, N TOT , to power losses, P LOSS , versus normalised beta, ? N , and product B t ?. From left to right shown is colour mapped symbols for N TH /P LOSS in a) and N TOT /P LOSS vs. ? N and B t ? in c). N TH /P LOSS vs. ? N at fixed B t ??1 (0.95<B t ?<1.05) and on the right vs. B t ? at fixed ? N ?1.34 (1.3<? N <1.38) in b) and N TOT /P LOSS vs. ? N at fixed B t ? and on the right vs. B t ? at fixed ? N in d). Datapoints are from JET 3.3T/3.5MA high performance baseline pulses. Least square fit parameters, slope a and residuals ? 2 , from the fits to straight lines (dash-dotted lines) are shown in top left corner of the graphs in b) and d). 1 CF/20/353 Download
Figure 7b Figure 7b Figure 7: (top row) The ratio of the thermal neutron counts, N TH , to power losses, P LOSS , versus normalised beta, ? N , and product B t ?; (bottom row) The ratio of the total neutron counts, N TOT , to power losses, P LOSS , versus normalised beta, ? N , and product B t ?. From left to right shown is colour mapped symbols for N TH /P LOSS in a) and N TOT /P LOSS vs. ? N and B t ? in c). N TH /P LOSS vs. ? N at fixed B t ??1 (0.95<B t ?<1.05) and on the right vs. B t ? at fixed ? N ?1.34 (1.3<? N <1.38) in b) and N TOT /P LOSS vs. ? N at fixed B t ? and on the right vs. B t ? at fixed ? N in d). Datapoints are from JET 3.3T/3.5MA high performance baseline pulses. Least square fit parameters, slope a and residuals ? 2 , from the fits to straight lines (dash-dotted lines) are shown in top left corner of the graphs in b) and d). 1 CF/20/355 Download
Figure 7c Figure 7c Figure 7: (top row) The ratio of the thermal neutron counts, N TH , to power losses, P LOSS , versus normalised beta, ? N , and product B t ?; (bottom row) The ratio of the total neutron counts, N TOT , to power losses, P LOSS , versus normalised beta, ? N , and product B t ?. From left to right shown is colour mapped symbols for N TH /P LOSS in a) and N TOT /P LOSS vs. ? N and B t ? in c). N TH /P LOSS vs. ? N at fixed B t ??1 (0.95<B t ?<1.05) and on the right vs. B t ? at fixed ? N ?1.34 (1.3<? N <1.38) in b) and N TOT /P LOSS vs. ? N at fixed B t ? and on the right vs. B t ? at fixed ? N in d). Datapoints are from JET 3.3T/3.5MA high performance baseline pulses. Least square fit parameters, slope a and residuals ? 2 , from the fits to straight lines (dash-dotted lines) are shown in top left corner of the graphs in b) and d). 0 CF/20/357 Download
Figure 7d Figure 7d Figure 7: (top row) The ratio of the thermal neutron counts, N TH , to power losses, P LOSS , versus normalised beta, ? N , and product B t ?; (bottom row) The ratio of the total neutron counts, N TOT , to power losses, P LOSS , versus normalised beta, ? N , and product B t ?. From left to right shown is colour mapped symbols for N TH /P LOSS in a) and N TOT /P LOSS vs. ? N and B t ? in c). N TH /P LOSS vs. ? N at fixed B t ??1 (0.95<B t ?<1.05) and on the right vs. B t ? at fixed ? N ?1.34 (1.3<? N <1.38) in b) and N TOT /P LOSS vs. ? N at fixed B t ? and on the right vs. B t ? at fixed ? N in d). Datapoints are from JET 3.3T/3.5MA high performance baseline pulses. Least square fit parameters, slope a and residuals ? 2 , from the fits to straight lines (dash-dotted lines) are shown in top left corner of the graphs in b) and d). 0 CF/20/358 Download
Figure 8a Figure 8a Figure 8: (top row) The ratio of the thermal neutron counts, N TH , to lost power, P LOSS , versus normalised beta, ? N , and product B t ?; (bottom row) The ratio of the total neutron counts, N TOT , to lost power, P LOSS , versus normalised beta, ? N , and product B t ?. From left to right shown is colour mapped symbols for N TH /P LOSS in a) and N TOT /P LOSS vs. ? N and B t ? in c). N TH /P LOSS vs. ? N at fixed B t ??0.65 (0.60<B t ?<0.70) and on the right N TH /P LOSS vs. B t ? at fixed ? N ?1.6 (1.55<? N <1.65) in b) and N TOT /P LOSS vs. ? N at fixed B t ? and on the right N TOT /P LOSS vs. B t ? at fixed ? N in d). Datapoints are from 3.4T/2.2MA and 2.8T/2.2MA high performance hybrid pulses. Least square fit parameters, slope a and residuals ? 2 , from the fits to straight lines (dash-dotted lines) are shown in top left corner of the graphs in b) and d). 1 CF/20/359 Download
Figure 8b Figure 8b Figure 8: (top row) The ratio of the thermal neutron counts, N TH , to lost power, P LOSS , versus normalised beta, ? N , and product B t ?; (bottom row) The ratio of the total neutron counts, N TOT , to lost power, P LOSS , versus normalised beta, ? N , and product B t ?. From left to right shown is colour mapped symbols for N TH /P LOSS in a) and N TOT /P LOSS vs. ? N and B t ? in c). N TH /P LOSS vs. ? N at fixed B t ??0.65 (0.60<B t ?<0.70) and on the right N TH /P LOSS vs. B t ? at fixed ? N ?1.6 (1.55<? N <1.65) in b) and N TOT /P LOSS vs. ? N at fixed B t ? and on the right N TOT /P LOSS vs. B t ? at fixed ? N in d). Datapoints are from 3.4T/2.2MA and 2.8T/2.2MA high performance hybrid pulses. Least square fit parameters, slope a and residuals ? 2 , from the fits to straight lines (dash-dotted lines) are shown in top left corner of the graphs in b) and d). 1 CF/20/361 Download
Figure 8c Figure 8c Figure 8: (top row) The ratio of the thermal neutron counts, N TH , to lost power, P LOSS , versus normalised beta, ? N , and product B t ?; (bottom row) The ratio of the total neutron counts, N TOT , to lost power, P LOSS , versus normalised beta, ? N , and product B t ?. From left to right shown is colour mapped symbols for N TH /P LOSS in a) and N TOT /P LOSS vs. ? N and B t ? in c). N TH /P LOSS vs. ? N at fixed B t ??0.65 (0.60<B t ?<0.70) and on the right N TH /P LOSS vs. B t ? at fixed ? N ?1.6 (1.55<? N <1.65) in b) and N TOT /P LOSS vs. ? N at fixed B t ? and on the right N TOT /P LOSS vs. B t ? at fixed ? N in d). Datapoints are from 3.4T/2.2MA and 2.8T/2.2MA high performance hybrid pulses. Least square fit parameters, slope a and residuals ? 2 , from the fits to straight lines (dash-dotted lines) are shown in top left corner of the graphs in b) and d). 0 CF/20/362 Download
Figure 8d Figure 8d Figure 8: (top row) The ratio of the thermal neutron counts, N TH , to lost power, P LOSS , versus normalised beta, ? N , and product B t ?; (bottom row) The ratio of the total neutron counts, N TOT , to lost power, P LOSS , versus normalised beta, ? N , and product B t ?. From left to right shown is colour mapped symbols for N TH /P LOSS in a) and N TOT /P LOSS vs. ? N and B t ? in c). N TH /P LOSS vs. ? N at fixed B t ??0.65 (0.60<B t ?<0.70) and on the right N TH /P LOSS vs. B t ? at fixed ? N ?1.6 (1.55<? N <1.65) in b) and N TOT /P LOSS vs. ? N at fixed B t ? and on the right N TOT /P LOSS vs. B t ? at fixed ? N in d). Datapoints are from 3.4T/2.2MA and 2.8T/2.2MA high performance hybrid pulses. Least square fit parameters, slope a and residuals ? 2 , from the fits to straight lines (dash-dotted lines) are shown in top left corner of the graphs in b) and d). 0 CF/20/364 Download
Figure 9a Figure 9a Figure 9: a) Central fast ions density, n fi (0), versus central electron density, n e (0), for JET’s 3.3T/3.5MA high-performance baseline pulses; b) Total BT neutrons, N BT , versus central electron density, n e (0). The subset of data is for central electron temperature in the range T e (0)=6.3-6.9keV. 1 CF/20/365 Download
Figure 9b Figure 9b Figure 9: a) Central fast ions density, n fi (0), versus central electron density, n e (0), for JET’s 3.3T/3.5MA high-performance baseline pulses; b) Total BT neutrons, N BT , versus central electron density, n e (0). The subset of data is for central electron temperature in the range T e (0)=6.3-6.9keV. 1 CF/20/367 Download
Figure 10a Figure 10a Figure 10: a) Central fast ion density, n fi (0), versus central electron density, n e (0) for JET’s 2.15MA high-performance hybrid pulses; b) Total beam-target neutrons, N BT , versus central electron density n e (0). The database is for central electron temperature in the range T e (0)=6.5-7.1keV. 1 CF/20/369 Download
Figure 10b Figure 10b Figure 10: a) Central fast ion density, n fi (0), versus central electron density, n e (0) for JET’s 2.15MA high-performance hybrid pulses; b) Total beam-target neutrons, N BT , versus central electron density n e (0). The database is for central electron temperature in the range T e (0)=6.5-7.1keV. 1 CF/20/371 Download
Figure 11a Figure 11a Figure 11: BT neutrons, N BT , versus central electron T e (0) a) and ion temperature T i (0) b) for 3.3T/3.5MA baseline pulses with n e (0)=8.75-9.25?10 19 m -3 and the ratio of BT neutrons to total calculated neutrons, N BT /N TOT , for N BT ?1.3e16 1/s in c) 1 CF/20/373 Download
Figure 11b Figure 11b Figure 11: BT neutrons, N BT , versus central electron T e (0) a) and ion temperature T i (0) b) for 3.3T/3.5MA baseline pulses with n e (0)=8.75-9.25?10 19 m -3 and the ratio of BT neutrons to total calculated neutrons, N BT /N TOT , for N BT ?1.3e16 1/s in c) 1 CF/20/375 Download
Figure 11c Figure 11c Figure 11: BT neutrons, N BT , versus central electron T e (0) a) and ion temperature T i (0) b) for 3.3T/3.5MA baseline pulses with n e (0)=8.75-9.25?10 19 m -3 and the ratio of BT neutrons to total calculated neutrons, N BT /N TOT , for N BT ?1.3e16 1/s in c) 1 CF/20/377 Download
Figure 12a Figure 12a Figure 12: BT neutrons, N BT , versus the ratio of central ion and electron temperatures T i (0)/T e (0) for 3.3T/3.5MA with n e (0)=8.75-9.25?10 19 m -3 baseline pulses a) and 2.8-3.4T/2.15MA hybrid pulses with n e (0)=6.75-7.25?10 19 m -3 b). Colour mapped symbols show ratio of BT neutrons to total calculated neutrons, N BT /N TOT . 1 CF/20/379 Download
Figure 12b Figure 12b Figure 12: BT neutrons, N BT , versus the ratio of central ion and electron temperatures T i (0)/T e (0) for 3.3T/3.5MA with n e (0)=8.75-9.25?10 19 m -3 baseline pulses a) and 2.8-3.4T/2.15MA hybrid pulses with n e (0)=6.75-7.25?10 19 m -3 b). Colour mapped symbols show ratio of BT neutrons to total calculated neutrons, N BT /N TOT . 1 CF/20/381 Download
Figure 13a Figure 13a Figure 13: Total neutron count N TOT in a) and BT neutron rates R BT at 12.5s in b) for JET pulse #96482 modelled by TRANSP with RF power and RF kick operator (red lines) and with RF kick operator turned off (blue dashed lines). Experimental total neutron count (black lines) is provided in a) for comparison. 0 CF/20/383 Download
Figure 13b Figure 13b Figure 13: Total neutron count N TOT in a) and BT neutron rates R BT at 12.5s in b) for JET pulse #96482 modelled by TRANSP with RF power and RF kick operator (red lines) and with RF kick operator turned off (blue dashed lines). Experimental total neutron count (black lines) is provided in a) for comparison. 0 CF/20/384 Download
Figure 14a Figure 14a Figure 14: Fast ions densities n fi (R,Z) in a) and distribution function f D (v parl ,v perp ) in the plasma centre, at t=12.4s and at R=3.02m, Z=0.31m or ?=0 in b) for JET pulse #96482 modelled by TRANSP with RF power and RF kick operator (left figures, TRANSP run K75) and with RF kick operator turned off (right figures, TRANSP run K76). 0 CF/20/385 Download
Figure 14b Figure 14b Figure 14: Fast ions densities n fi (R,Z) in a) and distribution function f D (v parl ,v perp ) in the plasma centre, at t=12.4s and at R=3.02m, Z=0.31m or ?=0 in b) for JET pulse #96482 modelled by TRANSP with RF power and RF kick operator (left figures, TRANSP run K75) and with RF kick operator turned off (right figures, TRANSP run K76). 0 CF/20/386 Download