www.亚洲日本,欧美成人综合网播九公社,桃花岛网站,桃花岛亚洲,91精品91久久久,午夜久久网,国产99久久精品

     首頁 >> 通知公告

通知公告

近物所學(xué)術(shù)會議:Dispersion-induced beam instability in high-intensity circular accelerators

4

發(fā)表日期:2018-01-03來源:近代物理研究所放大 縮小

  報告題目: Dispersion-induced beam instability in high-intensity circular accelerators 

  報告人:苑堯碩

  時間安排:2018149:00 

  地點(diǎn):近代物理所6號樓中控室會議廳

  報告人簡介: 苑堯碩,男,1987年生。2014年畢業(yè)于中科院高能物理研究所?,F(xiàn)在德國達(dá)姆施塔特工業(yè)大學(xué)讀博士學(xué)位,從事強(qiáng)流粒子加速器中的束流動力學(xué)研究。 

  報告摘要: Space charge effect in high-intensity accelerators can trigger collective beam instability, lead to beam loss and limit the maximum beam intensity. In this context, study of beam intensity limitation by space charge effect and method to increase the space charge limit are of essential importance for high-intensity design, operation and optimization. For example, the phase advance for one periodical cell in high-intensity linear accelerators are usually designed to be less than 90 degree to avoid the occurrence of the well-known envelope instability. Based on the perturbation theory on the generalized envelope equation including dispersion, as well as particle-in-cell simulations, in this report we show that in circular accelerators, a newly discovered instabilitydispersion-induced beam instability exists because of the combined effect of space charge and dispersion, which is characterized by a resonance between envelope mode and the newly-identified dispersion mode [Phys. Rev. Lett. 118, 154801 (2017)]. Several potential applications of the dispersion mode on the characterization of intense beams in circular accelerators and method to measure the mode are also briefly introduced. 

附件:
乐至县| 呼和浩特市| 龙井市| 双辽市| 红河县| 镇宁| 华蓥市| 皮山县| 九江县| 苏尼特左旗| 陆丰市| 东城区| 东明县| 衡阳县| 涟源市| 和田市| 都安| 特克斯县| 镇巴县| 横山县| 阿克陶县| 温泉县| 勐海县| 新津县| 樟树市| 德保县| 莱阳市| 格尔木市| 舟山市| 洛隆县| 嵩明县| 辽中县| 讷河市| 榆社县| 辽阳县| 西乌珠穆沁旗| 静宁县| 小金县| 临沭县| 黑龙江省| 江源县|