报告题目：COLTRIMS-Reaction Microscope with XUV to X-ray ionizing photons:From Picoseconds toward Atto-seconds I.History with Synchrotron Radiation sources
报告人：Kiyoshi Ueda
报告人简介：
上田潔，在京都大学获得学士/博士学位，从2003年起任日本東北大学全职教授，现聘为吉林大学“唐敖庆讲座教授”。他应用同步辐射、飞秒/阿秒脉冲、短波自由电子激光等先进光源，聚焦于包括原子、分子、团簇及纳米粒子等小量子体系的电子态及结构动力学研究，实现对光电离、电子激发态及其超快驰豫等瞬态过程的刻画与调控，在Nature (2篇)，Nature Physics (4篇),  Phys. Rev. Lett. (52篇) 等知名期刊上发表文章超过500篇，引用超过15000次，h-因子为57。

摘要：
Cold target recoil ion momentum spectroscopy (COLTRIMS) is originally the measurement of the 3D momentum of the recoiling target ion created in the ionizing ion or photon impact reactions with atoms [1,2]. The combination of this COTRIMS with simultaneous electron momentum spectroscopy allows us to perform kinematically complete experiments for e.g., double ionization of an atom because the information about the 3D momentum for the ion and that for one of the two ejected electrons is kinematically complete thanks to the momentum conservation low [3].  Improvement of detection efficiencies of the particles and the result-ing capability of detecting more than one ion or electron transformed COLRIMS to be a versatile tool for the investigation of reaction dynamics of atoms and molecules caused by various ionizing sources. This multi-coincidence electron and ion 3D momentum spectroscopy apparatus is nowa-days a standard model of COLTRIMS or Reaction Microscope (REMI). See seminal review articles by the developers of COLTRIMS-REMI [4,5]. With the wide spread of synchrotron radiation sources (SRS), COLTRIMS became a standard tool to study atomic and molecular photoionization, their electronic decay, and fragmentation, in ranges from XUV to X-rays. See, for example [6]. Be-cause COLTRIMS is the time-correlation meas-urement, the pulsed ionizing source is indispensa-ble. Synchrotron radiation pulses are tens ps. Cou-lomb explosion imaging [7], molecular-frame pho-toelectron angular distributions [8], interatomic (in-termolecular) Coulombic decay [9] etc. have been extensively studied using COLTRIMS with SRS.
[1]  V. Mergel et al. PRL 74, 2200 (1995).    
[2]  L. Spielberger et al. PRL 74, 4695 (1995).  
[3]  R. Dörner et al. PRL 77, 1026 (1996).
[4]  R. Dörner et al. Phys. Rep. 330, 95 (2000).  
[5]  J. Ullrich et al. RPP 66, 1493 (2003).  
[6]  K. Ueda, JPB 36, R1 (2003).
[7]   K. Ueda and J. Eland, JPB 38, S839 (2005).  
[8]  D. Dowek and P. Decleva, PCCP 24, 24614 (2022).  
[9]  T. Jahnke et al. Chem. Rev. 120, 11295 (2020).

报告时间： 2026年11月4日 10:00（星期三）
报告地点： 唐敖庆楼C区532会议室
主办单位： 原子与分子物理研究所