| Автор | F B Marcus |
| Автор | J M Adams |
| Автор | A D Cheetham |
| Автор | S Conroy |
| Автор | W G F Core |
| Автор | O N Jarvis |
| Автор | M J Loughlin |
| Автор | M Olsson |
| Автор | G Sadler |
| Автор | P Smeulders |
| Автор | P Van Belle |
| Автор | N Watkins |
| Дата выпуска | 1991-04-01 |
| dc.description | Measurements from the JET neutron profile monitor are analyzed tomographically to deduce the 2-D spatial distribution of neutron emissivity during NBI heating both before and after sawtooth crashes. In a discharge where the global neutron emission decreases slightly to 5/6 of the pre-crash rate of nearly 10<sup>16</sup> n s<sup>-1</sup>, the axial emissivity drops much more to only 1/6 of the pre-crash value. The sources of neutron emissivity are analyzed with an analytic Fokker-Planck formulation. The main change in neutron emissivity is due to fast ion redistribution during a sawtooth crash and a decrease in beam-beam-produced emissivity. The deduced fast ion redistribution is consistent with other observations of sawtooth behaviour in JET. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | JET neutron emission profiles and fast ion redistribution during sawtooth crashes |
| Тип | paper |
| DOI | 10.1088/0741-3335/33/4/001 |
| Electronic ISSN | 1361-6587 |
| Print ISSN | 0741-3335 |
| Журнал | Plasma Physics and Controlled Fusion |
| Том | 33 |
| Первая страница | 277 |
| Последняя страница | 287 |
| Аффилиация | F B Marcus; JET Joint Undertaking, Abingdon, UK |
| Аффилиация | J M Adams; JET Joint Undertaking, Abingdon, UK |
| Аффилиация | A D Cheetham; JET Joint Undertaking, Abingdon, UK |
| Аффилиация | S Conroy; JET Joint Undertaking, Abingdon, UK |
| Аффилиация | W G F Core; JET Joint Undertaking, Abingdon, UK |
| Аффилиация | O N Jarvis; JET Joint Undertaking, Abingdon, UK |
| Аффилиация | M J Loughlin; JET Joint Undertaking, Abingdon, UK |
| Аффилиация | M Olsson; JET Joint Undertaking, Abingdon, UK |
| Аффилиация | G Sadler; JET Joint Undertaking, Abingdon, UK |
| Аффилиация | P Smeulders; JET Joint Undertaking, Abingdon, UK |
| Аффилиация | P Van Belle; JET Joint Undertaking, Abingdon, UK |
| Аффилиация | N Watkins; JET Joint Undertaking, Abingdon, UK |
| Выпуск | 4 |
