U.S. Germany Cooperative Research: Three-Dimensional Imaging of Ionizing Collisions

美德合作研究：电离碰撞三维成像

• 批准号: 0224943
• 负责人: Michael Schulz
• 金额: $ 2.52万
• 依托单位: Missouri University of Science and Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-01 至 2006-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0224943&HistoricalAwards=false
• 关键词: U.S.; Germany; Cooperative; Research; Three

0224943SchulzThis award supports Michael Schulz, Don Madison and students from the University of Missouri, Rolla in a collaboration with Joachim Ulrich in the Department of Quantum Dynamics at the Max Planck Institute for Nuclear Physics in Heidelberg, Germany. The collaboration will investigate single and double ionization of helium by ion impact. The U.S. group recently obtained for the first time complete three-dimensional images of the electron emission pattern in single ionization with the kinematics of all collision products fixed. It was found that even state-of-the-art theories, which have been successful in describing the ionization process under restricted geometries, do not reproduce the measured three-dimensional images very well. The present collaboration will develop new theoretical approaches designed to identify the important physical effects. The German group is world renowned in the experimental techniques necessary to this collaboration. The combination of experimental and theoretical expertise will lead to new and fundamentally important insight into the collision dynamics under study.

0224943舒尔茨该奖项支持迈克尔·舒尔茨、唐·麦迪逊和密苏里大学罗拉分校的学生与德国海德堡马克斯·普朗克核物理研究所量子动力学系的约阿希姆·乌尔里希合作。 此次合作将研究离子撞击对氦的单电离和双电离。 美国研究小组最近首次获得了单次电离中电子发射图案的完整三维图像，并且所有碰撞产物的运动学都是固定的。 研究发现，即使是最先进的理论，已经成功地描述了受限几何形状下的电离过程，也不能很好地再现测量的三维图像。 目前的合作将开发新的理论方法，旨在识别重要的物理效应。 德国团队在此次合作所需的实验技术方面享誉世界。 实验和理论专业知识的结合将为所研究的碰撞动力学带来新的、根本性的重要见解。