Application of a simple asynchronous mechanical light chopper to multielectron coincidence spectroscopy.

Application of a simple asynchronous mechanical light chopper to multielectron coincidence spectroscopy.
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简单的异步机械光斩波器在多电子符合光谱中的应用。

DOI:
10.1063/1.3258200
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发表时间:
2009
期刊:
The Review of scientific instruments
影响因子:
--
通讯作者:
P. Lablanquie
P. Lablanquie
中科院分区:
--
文献类型:
--
作者:
K. Ito;F. Penent;Y. Hikosaka;E. Shigemasa;I. Suzuki;J. Eland;P. Lablanquie

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在改进涡轮分子泵的基础上,研制了一种简单的异步机械斩光器,以延长光子工厂储存环单束运转时光脉冲之间的间隔。脉冲重复率为80 kHz,采用48000转/分旋转的圆柱体,狭缝宽度为80微米。这允许粒子的绝对计时长达12.48微秒,而不是单束周期624 ns。我们利用磁瓶飞行时间电子能谱仪,将斩波器与光脉冲监测器相结合,测量了多电子符合谱。利用这种系统,电子能量的确定没有任何含糊,符合谱的折叠消失,假符合的影响大大减少。
A simple asynchronous mechanical light chopper, based on modification of a turbo-molecular pump, has been developed to extend the interval between light pulses in single bunch operation at the Photon Factory storage ring. A pulse repetition rate of 80 kHz was achieved using a cylinder rotating at 48000 rpm, with 100 slits of 80 microm width. This allows absolute timing of particles up to 12.48 micros instead of the single-bunch period of 624 ns. We have applied the chopper together with a light pulse monitor to measure multielectron coincidence spectra using a magnetic bottle time-of-flight electron spectrometer. With such a system, the electron energies are determined without any ambiguity, the folding of coincidence spectra disappears and the effect of false coincidences is drastically reduced.
DOI: 10.1103/physreva.76.012717
发表时间: 2007-07
期刊: Physical Review A
影响因子: 2.9
作者:
T. Kaneyasu;Y. Hikosaka;E. Shigemasa;F. Penent;P. Lablanquie;T. Aoto;K. Ito
通讯作者: T. Kaneyasu;Y. Hikosaka;E. Shigemasa;F. Penent;P. Lablanquie;T. Aoto;K. Ito
DOI: 10.1103/physrevlett.98.183002
发表时间: 2007-05-04
影响因子: 8.6
作者:
Hikosaka, Y.;Lablanquie, P.;Ito, K.
通讯作者: Ito, K.
DOI: 10.1103/physrevlett.97.053003
发表时间: 2006-08-04
影响因子: 8.6
作者:
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通讯作者: Ito, K.
DOI: --
发表时间: 2006
期刊: Journal of Physics B, Atomic, Molecular and Optical Physics 39
影响因子: --
作者:
Y. Hikosaka;T. Aoto;P. Lablanquie;F. Penent;E. Shigemasa and K. Ito
通讯作者: E. Shigemasa and K. Ito