Longitudinal diamagnetic effects in beam-plasma system embedded in an external magnetic field
High-current electrons beams generated in an external magnetic field in vacuum behave as a diamagnetic and force a magnetic field out of its volumes in radial direction. Under the condition of conservation of a magnetic flux the magnetic field inside of the beam decreases and increases outside. In t...
Збережено в:
| Дата: | 2010 |
|---|---|
| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2010
|
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/17467 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Longitudinal diamagnetic effects in beam-plasma system embedded in an external magnetic field / A.V. Agafonov // Вопросы атомной науки и техники. — 2010. — № 6. — С. 88-90. — Бібліогр.: 12 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | High-current electrons beams generated in an external magnetic field in vacuum behave as a diamagnetic and force a magnetic field out of its volumes in radial direction. Under the condition of conservation of a magnetic flux the magnetic field inside of the beam decreases and increases outside. In the beam-plasma systems embedded in a magnetic field (plasma filled diodes or a beam in a plasma channel) another state of the beam with the total magnetic field increased to the axis can be realized. Radial focusing of the beam is ensured by electrostatic field of an ion pivot and azimuthal self magnetic field. If the external magnetic field changes in longitudinal direction then the value of magnetic field from the region of beam injection is transferred along near axis region of the system. It looks like a “magnetic needle” and resembles “frozen field” effect but the physics is different. Different beam-plasma systems were considered by means of computer simulation. Computer simulation was performed using electromagnetic PIC code KARAT. |
|---|