# Published Data

### These pages provide an access point to data contained in CCFE published journal papers. By selecting a paper, and then a specific figure or table, you can request the related underlying data if it is available for release.

### Publication Figures

Publication Date:

2019-10-01

First Author:

I. Turner

Title:

Model for a Beam Driven Plasma Neutraliser based on ITER Beam Geometry

Paper Identifier:

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Figure Reference | Title | Description | Number of Figure Data Items | Identifier | Download Figure Details | ||
---|---|---|---|---|---|---|---|

Figure 1 | Figure 1 – plasma neutraliser paper | Plot of neutralisation efficiency vs line density for a D? beam in a D2 gas neutraliser at 1 MeV beam energy | 0 | CF/20/90 | Download | ||

Figure 2 | Figure 2 – plasma neutraliser paper | Drawing of simplified cross-section of the plasma neutraliser in the x–y plane illustrating the plasma exclusion zone. | 0 | CF/20/91 | Download | ||

Figure 3 | Figure 3 – plasma neutraliser paper | Drawing of small section of a 3D model of the plasma neutraliser showing the beam entrance channels, cusp magnet rings and end confinement magnets. The model is the same at both ends of the neutraliser | 0 | CF/20/92 | Download | ||

Figure 4 | Figure 4 – plasma neutraliser paper | Simplified drawing of a cross-section through five magnet cusps along the length of the neutraliser (y-z plane) in a Halbach array arrangement. The strong side faces the neutraliser wall. | 0 | CF/20/93 | Download | ||

Figure 5 | Figure 5 – plasma neutraliser paper | ANSYS MAXWELL™ map of total B-field generated by a 21 magnet Halbach array using a combination of NdFeB-35 25mmx 45mm cusp magnets and 75mmx 68mm interstitial magnets giving 100mm cusp separation. Interstitial magnets also have a 7mm castellation to account for magnet attachment and water cooling channels | 0 | CF/20/94 | Download | ||

Figure 6 | Figure 6 – plasma neutraliser paper | Plot showing cusp field (By) 3mm above strong side of two simulated Halbach arrays with 70mm and 90mm cusp separation (pitch). | 0 | CF/20/95 | Download | ||

Figure 7 | Figure 7 – plasma neutraliser paper | Plot showing cusp field (By) 3mm above strong side of simulated Halbach array with 100mm pitch, 7mm castellations and wide interstitial magnets | 0 | CF/20/96 | Download | ||

Figure 8 | Figure 8 – plasma neutraliser paper | Plot showing Bz decay from point between two cusps inwards towards the plasma neutraliser for three different cusp separations in a Halbach array compared to a chequerboard arrangement for a PINI. | 0 | CF/20/97 | Download | ||

Figure 9 | Figure 9 – plasma neutraliser paper | Sketch of the entrance of the beam into the plasma neutraliser in the x–z plane where z is the beam axis, illustrating the cusp lines of the entrance bar magnets and the Halbach magnets | 0 | CF/20/98 | Download | ||

Figure 10 | Figure 10 – plasma neutraliser paper | Sketch of the inside of the neutraliser in the y-z plane showing the various gas pressures in the system and the gas flow rate Q. | 0 | CF/20/99 | Download | ||

Figure 11 | Figure 11 – plasma neutraliser paper | Plot showing cusp separation scan results for maximum achieved neutralisation efficiency and optimum target thickness. Main cusp field set to 0.8 T, inlet flow rate set to 10 Pa.m3/s. | 0 | CF/20/100 | Download | ||

Figure 12 | Figure 12 – plasma neutraliser paper | Plot showing cusp strength scan results for maximum achieved neutralisation efficiency and optimum target thickness. Cusp separation set to 7 cm, inlet flow rate set to 10 Pa.m3/s. | 0 | CF/20/101 | Download | ||

Figure 13 | Figure 13 – plasma neutraliser paper | Plot showing neutralisation fraction along the length of the neutraliser at different inlet gas flow rates. Cusp field=0.8 T, cusp separation=10 cm, external pressure=0.002 Pa. | 0 | CF/20/102 | Download | ||

Figure 14 | Figure 14 – plasma neutraliser paper | Plot showing plasma density and average gas density variation with gas flow rate. Cusp field=0.8 T, cusp separation=10 cm, external pressure=0.002 Pa. | 0 | CF/20/103 | Download | ||

Figure 15 | Figure 15 – plasma neutraliser paper | Plot showing electron temperature variation with gas flow rate. Cusp field=0.8 T, cusp separation=10 cm, external pressure=0.002 Pa. | 0 | CF/20/104 | Download | ||

Figure 16 | Figure 16 – plasma neutraliser paper | Plot showing degree of ionisation variation with gas flow rate. Cusp field=0.8 T, cusp separation=10 cm, external pressure=0.002 Pa. | 0 | CF/20/105 | Download | ||

Figure 17 | Figure 17 – plasma neutraliser paper | Plot showing neutralisation efficiency variation with gas flow rate. Cusp field=0.8 T, cusp separation=10 cm, external pressure=0.002 Pa. | 0 | CF/20/106 | Download | ||

Figure 18 | Figure 18 – plasma neutraliser paper | Plot showing difference in neutralisation fraction between using D3+ and D+ ions for the plasma ion mass. Cusp field=0.8 T, cusp separation=10 cm, gas flow rate =8.5 Pa.m3/s. | 0 | CF/20/107 | Download | ||

Figure 19 | Figure 19 – plasma neutraliser paper | Plot showing difference in plasma neutralisation between using PINI magnets in a linear cusp arrangement and NdFeB-35 magnets in a Halbach array for the current model in deuterium. Cusp field=0.8 T, cusp separation=10 cm, gas flow rate =8.5 Pa.m3/s. | 0 | CF/20/108 | Download | ||

Figure 20 | Figure 20 – plasma neutraliser paper | Plot showing difference in neutralization efficiency along the length of an ITER sized plasma neutraliser between deuterium and equivalent energy hydrogen beams. Cusp field=0.8 T, cusp separation=10 cm, gas flow rate =8.5 Pa.m3/s for deuterium and 12 Pa.m3/s for hydrogen. | 0 | CF/20/109 | Download | ||

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