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- The high charge beam produced by the new photoinjector can be used as drive beam for laser-plasma and for laser-dielectric wakefield acceleration studies in the future. 由此光阴极注入器产生的电子束还可以在将来用作激光-等离子体或激光-非传导性加速结构的尾场加速研究。
- Electron trapping" is the main acceleration mechanism in the laser wakefield acceleration, and the theoretical analysis indicates that more electrons are trapped when the initial velocity of the electrons are increased. 电子俘获是激光尾波场加速电子的主要机理 ;增大电子的初速度可以使更多的电子被尾波场俘获 .
- Significant progress has been achieved in enhancing the energy and quality of electron beams since the proposal of laser wakefield acceleration by Tajima and Dawson more than 20 years ago. 摘要自从激光尾波场加速电子方案提出以来,经过二十多年的理论和实验研究,人们在激光尾波场加速方面已经取得了重大进步,相继在电子束能量、电子单色性等束流性能上取得重大突破。
- Researchers thought that such precise injection was impossible in a laser wakefield accelerator because the accelerating structure is microscopic and short-lived. 研究人员认为在尾迹场加速器中不可能这麽精准的注入电子,因为加速的过程是微观而且短暂的。
- As in a laser wakefield accelerator, when the driver pulse is focused into the plasma, it produces a wakefield bubble (provided that the beam is denser than the plasma). 在雷射尾迹场加速器中,当驱动脉冲聚焦到电浆后,会产生一个尾迹场泡泡(假设电子束的密度比电浆要来的大)。
- Instead the approach currently favored is the so-called plasma afterburner, in which a single plasma wakefield accelerator stage doubles the output energy of a conventional accelerator. 目前较偏好的方式是利用所谓的电浆后燃器,这是一座电浆尾迹场加速器,可以加倍提升一般加速器的输出。
- Quasi-monoenergetic electron bunches generated from laser wakefield acceleration 第二讲激光尾波场加速中的准单能电子束的产生
- An instrument used to measure acceleration. 加速计,测震仪用于测量加速度的仪器
- Wakefield acceleration 尾场加速
- The system undergoes no acceleration. 该体系不承受加速度作用。
- All spacemen must be able to bear acceleration. 所有太空人都应能承受加速度。
- What direction is the acceleration of the canoe? 独木船的加速度方向如何?
- It is called the centripetal acceleration. 这叫做向心加速度。
- Acceleration and velocity are both vectors. 加速度和速度都是矢量。
- Then came that acceleration of locomotion. 后来,移动加快了速度。
- An acceleration in the rate of economic growth. 经济发展速率的增长。
- Wakefield, Edward Jerningham."Aventure en New Zeland". 昆士半琼楠 King; Martha 1803-1897.
- This bus has good acceleration . 这辆公共汽车的加速性能很好。
- This plane has good acceleration. 这架飞机的加速度性能很好。
- The acceleration finally began to tail off. 加速度终于越来越小。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries