| タイトル | Collective instability of a super-bunch |
| その他のタイトル | スーパーバンチの集合的不安定性 |
| 著者（日） | 外山 毅; 高山 健 |
| 著者（英） | Toyama, Takashi; Takayama, Ken |
| 著者所属（日） | 高エネルギー加速器研究機構; 高エネルギー加速器研究機構 |
| 著者所属（英） | High Energy Accelerator Research Organization; High Energy Accelerator Research Organization |
| 発行日 | 2003-03 |
| 刊行物名 | Proceedings of RPIA2002: The International Workshop on Recent Progress in Induction Accelerators, for Future Beam Inertial Fusion and Hadron Collider
Proceedings of RPIA2002: The International Workshop on Recent Progress in Induction Accelerators, for Future Beam Inertial Fusion and Hadron Collider |
| 開始ページ | 148 |
| 終了ページ | 151 |
| 刊行年月日 | 2003-03 |
| 言語 | eng |
| 抄録 | Transverse head-tail instability has been studied for ordinary rf bunches and super-bunches using KEK 12 GeV PS parameters. Tentative results are reported. An air bag model shows similar stability behavior in both cases, if bunch lengths are similar, i.e. the beam is unstable except the chromaticity xi approximately equal to 0. A water bag model as the more realistic distribution, has momentum spread. Synchrotron tune spread is almost same for the both cases at the KEK-PS parameters, although there is a big difference in the synchrotron tune itself. The synchrotron tune spread stabilizes the beam due to Landau damping which gives sufficiently large threshold intensity for the superbunch in the KEK-PS. |
| キーワード | KEK 12-GeV PS; superbunch; head-tail instability; particle accelerator; proton synchrotron; Landau damping; Vlasof equation; computerized simulation; betatron frequency; research and development; dipole oscillation; water-bag model; KEK 12-GeV PS; スーパーバンチ; ヘッド・テール不安定性; 粒子加速器; 陽子シンクロトロン; Landauダンピング; Vlasof方程式; 計算機シミュレーション; ベータトロン振動数; 研究開発; ダイポール振動; 水袋モデル |
| 資料種別 | Conference Paper |
| SHI-NO | AA0046019024 |
| レポートNO | KEK-Proceedings-2002-30 |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/31749 |
