应萃英学院与物理科学与技术学院的联合邀请，加拿大曼尼托巴大学物理与天文系系主任KumarS. Sharma教授将于5月13日至5月15日访问我校并做科研与教学管理方面的系列报告：
报告一：Studying exotic nuclei with trapped ions
时间： 5月13日下午16:00 地点：格致楼5004
The development of ion-traps and the associated technology of capturing the energetic products of nuclear reactions provide us with an opportunity to carry out precision measurements on exotic nuclei. The captured ions are available, nearly at rest in the laboratory, in an ideal environment for study. The measurement of the masses of these nuclei yields information on nuclear structure and makes it possible to check and improve theories about nuclear binding. Explosive events in astrophysics appear to be our best candidates for an explanation of the observed natural abundances of elements heavier than iron. Our measured masses also help define the paths and rates of the nuclear reactions that drive such events. The ability to observe an isotopically pure ensemble of ions, at rest in the laboratory, makes it possible to study the correlations between the particles emitted in their decay with great precision. Such studies make tests of the standard model of particle physics possible and allow studies of the details of the decay modes.
报告二： A brief history of mass spectrometry
时间： 5月14日下午14:30 地点：观云楼802
The first results from Thomson's positive ray parabola apparatus appeared 100 years ago in 1913 and started the development of a new technique called Mass Spectrometry. The field which involves the mass analysis of ion-beams currently finds applications in many fields of science and technology. Subsequent developments by Dempster and Aston quickly improved the technique and set the stage for instruments that are recognizably mass spectrometers. The design of better instruments was aided by the concurrent development of the theory of ion-optics. A brief account of the development of mass spectroscopy and some highlights of Canadian contributions to the field and from my own experience will be presented.
报告三： Management of Education and Research in Physics and Astronomy at the University of Manitoba
时间： 5月14日下午19:30 地点：观云楼813
In this talk, I would share the idea and experience of management of education and research in Physics and astronomy at our department. The Department of Physics and Astronomy at the University of Manitoba offers many possibilities for students pursuing an undergraduate or graduate degree. I will present an overview of the City of Winnipeg, the University of Manitoba, our Department and a summary of the research and educational opportunities available to students. In particular, I will describe the undergraduate programs (in Physics, Astronomy and jointly with other disciplines in science) available and their focus. I will highlight the research efforts within our Department and highlight the research opportunities of the main fields of inquiry pursued by us.
Dr. Kumar S. Sharma got BSc (1973) and PhD (1979) at the University of Manitoba (U of M) in the field of Atomic Mass Measurements. He then worked at the Chalk River Laboratories of Atomic Energy of Canada as a PDF for 2 years before returning to the Department of Physics and Astronomy at the the U of M as a NSERC University Research Fellow and Assistant Professor. He is now a tenured professor and has been Head of the Department for the last 5 years and have recently been appointed to continue for another 3 years. His research interests have centered on precision measurements with trapped exotic nuclei and concentrated mostly on determining their nuclear masses. He have also been the Chair of the Division of Nuclear Physics of the Canadian Association of Physicists, the President of the Canadian Institute of Nuclear Physics and a member, Secretary and Chair of the IUPAP Commission C2: Symbols, Units, Nomenclature, Atomic Masses and Fundamental Constants and continue to be an associate member of the Commission.
