北大核科学论坛
PKU Lecture on Nuclear Science
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报告人：
Prof.VincentChan (General Atomics)
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时间：
7月26日（周二）上午10:00
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地点：
北京大学加速器楼408
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报告人：
Prof. Shaofei Zhu
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时间：
2011年7月28日下午3:30
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地点：
北京大学加速器楼408
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摘要：
Octupole correlations play an important role in determining the level
structure of nuclei throughout the periodic table. This is the case in the
actinide region, where two distinct collective modes have been identified:
octupole vibration and octupole deformation. Striking differences were
found in the high-spin properties of the negative-parity bands in nuclei
of this region, and these differences appear to be related to the strength
of octupole correlations. At the same time, positive-parity bands with
features that can be attributed to a double-octupole phonon excitation
were uncovered for the first time in this region. The properties of the
proposed zero-, one- and two-phonon bands are consistent with the results
of calculations based on the concept of rotational-aligned octupole phonon
condensation.
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报告人：
欧阳晓平研究员（西北核技术研究所）
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时间：
2011年 6月27号（周一）下午2:30
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地点：
北京大学加速器楼408
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联系人：
樊铁栓（tsfan@pku.edu.cn）
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报告人简介：
欧阳晓平研究员，长期从事脉冲辐射场诊断技术研究工作，2004年曾获全国优秀博士论文，2005年获全国优秀博士后荣誉称号。他先后创建了三种重要的中子参数诊断方法，研制成功六种先进的脉冲辐射探测系统，形成了独具特色的中子探测体系。他曾获得国家科技进步和国家技术发明奖5项，部委级科技进步一等奖5项和二等奖4项，国家发明专利13项。他曾先后获得光华科技基金一等奖、第五届“中国青年科技奖”和中国科协“求是”杰出青年奖(实用工程奖)等奖励。1997年首批入选国家“百千万人才工程”一二层次，2004年被中国科协授予“全国优秀科技工作者”荣誉称号。
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报告人：
万宝年研究员（中国科学院等离子体物理研究所副所长、国家杰出青年基金获得者）
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时间：
6月9号（周四）上午9:00
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地点：
北京大学三教206
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联系人：
樊铁栓（tsfan@pku.edu.cn）
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报告人简介：
万宝年研究员，1991在德国维尔茨堡获得自然科学博士，2007年获得国家杰出青年基金，现任中国科学院等离子体物理研究所副所长。他长期从事托卡马克等离子体物理研究工作，在中国HT-7和EAST超导托卡马克先后负责和主持研制了包括电磁测量、光谱、边界探针、激光、X-射线、微波等二十多项诊断系统；在HT-7装置上系统地研究了低杂波电流驱动和离子回旋加热及两波协同效应，获得了准稳态的高约束等离子体；对托卡马克边界湍流开展了深入的研究，发现了带状流存在的证据以及大时空尺度的湍流结构以及对输运的影响；在EAST装置上发现了低杂波驱动等离子体环向流的动量输运过程以及带状流在低约束模到高约束模转换中的作用等。
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报告人：
Prof. Fabrizio Palla,
Italian National Institute of Nuclear Physics (INFN) -- Pisa Section
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时间：
2011年6月9日（周四）下午 14:30 和15:30
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地点：
北京大学 物理楼 南208会议室
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报告2摘要：
The analysis of data collected by the CMS experiment in 2010 (equivalent to
an integrated luminosity of 40 pb-1) has yielded several physics results
concerning the production mechanisms of heavy flavors at the unprecedented
center-of-mass energy of 7 TeV. Reconstruction techniques of heavy-flavored
particles will be shown, with particular focus on the triggers expressly
designed to select them. Measurements of the b-bbar cross section both with
jet "b-tagging" techniques and exclusive states, such as B0, B+ and Bs, will
be presented, as well as comparisons with theoretical predictions.
Charmonium and bottomonium cross-section measurements will be shown, and, in
the J/psi case, the first determinations of the B-decay feed-down fractions.
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报告1摘要：
The LHC Luminosity upgrades will be able to deliver a total of 3000 fb**(-1) in
a decade from now. The talk will address the physics potential of the upgrade
and the technical issues that both the LHC machine and the detectors will be
facing, with particular emphasis to the CMS experiment.
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报告人：
Prof.Dr.U.Ratzinger （J.W.Goethe-University Frankfurt/M, Germany）
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时间：
6月7日（周二）上午9:00
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地点：
北京大学加速器楼408
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摘要：
基于参加过中国第一个原子弹，人造卫星，正负电子对撞机以及发出中国第一封电子邮件的经验，
以及在美国费米国家实验室作为物理学家工作二十年的所见所闻，我想阐述基础研究为什么是文明
强国文化的原因，它们的应用前景，从中引申出中国应该向美国学些什么，以及科学、艺术与宗教的关系。
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报告人：
吴为民 （Fermi National Accelerator Laboratory, USA）
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时间：
6月8日（周三） 15:00-17:00
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地点：
北大物理楼中212
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摘要：
基于参加过中国第一个原子弹，人造卫星，正负电子对撞机以及发出中国第一封电子邮件的经验，
以及在美国费米国家实验室作为物理学家工作二十年的所见所闻，我想阐述基础研究为什么是文明
强国文化的原因，它们的应用前景，从中引申出中国应该向美国学些什么，以及科学、艺术与宗教的关系。
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报告人：
Prof. Jorge Piekarewicz (Florida State University)
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时间：
6月3日下午3:30
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地点：
加速器楼408
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摘要：
Understanding the equation of state (EOS) of neutron-rich matter is a
central goal of nuclear physics that cuts across a variety of disciplines.
Indeed, the limits of nuclear existence, the structure of neutron stars,
and the dynamics of core-collapse supernova, all depend critically on
the nuclear-matter EOS. In this talk I will concentrate on the EOS
of cold, neutron-rich matter with special emphasis on its impact on the
structure and composition of neutron stars. In particular, I will discuss
the evolution with density of the many exotic phases that are predicted
to exist in a neutron star: from the low-density crust to the high-density
core.
第032期：Development and applications of the USD Hamiltonians for the sd shell
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报告人：
Prof. Alex Brown （美国MSU）
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时间：
5月17日（周二）下午3:30
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地点：
加速器楼408
第031期：Micropattern Detectors:Trends and perspectives for applications in particle physics and beyond
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报告人：
Dr. Archana Sharma （欧洲核子中心）
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时间：
2011年5月16日（周一）15:00
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地点：
加速器楼408
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摘要：
Micropattern gaseous detectors have matured in the last decade with major implications in particle physics experiments, they have also been successfully refined for use in other fields: medical imaging, single photon detection, neutron and crystal diffraction studies, astrophysics and space experiments, etc. These devices have an inherently improved rate capability (few MHz/mm2) and a localization accuracy of 30-40 microns. I will review the state of the art of these novel detectors.
第030期：Drell–Yan physics, past, present and future
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报告人：
Mingxiong LIU (Los Alamos National Lab)
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时间：
5月3日（周二） 10:00-12:00
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地点：
物理楼南208会议室
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摘要：
Drell-Yan process has been used extensively in hadron-hadron interactions to study the quark and antiquark distributions inside the nucleons and nuclei and QCD dynamics in hard scatterings. In the past 20 some years, a series of fixed target dimuon experiments were carried out at Fermilab, utilizing the 800 GeV/c proton beams at Tevatron. In this talk, I will discuss the latest dimuon measurements from E866 at Fermilab and the future prospects of (polarized) Drell-Yan experiments at Fermilab, RHIC and other Facilities.
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报告人：
Prof. George Dracoulis (Australian National University)
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时间：
2011年4月8日上午9:00
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地点：
加速器楼 408
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报告人：
姜明教授（北京大学数学科学学院长江特聘教授、国家杰出青年基金获得者、IEEE Senior Member ）
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题目：
图像重建的迭代算法
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时间：
2011年4月8日上午9:00
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地点：
加速器楼208会议室
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联系人：
郭之虞（zhyguo@pku.edu.cn）
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摘要：
Iterative methods for image reconstruction
Iterative methods for image reconstruction have become very popular for imaging research and applications. The Landweber scheme is an algebraic reconstruction method and includes several important algorithms as its special cases. It can be shown that some of the widely used iterative algorithms, such as the ART, SART, Cimmino's algorithm and recently designed DWE and CAV, are special examples of the Landweber scheme or its block-iterative version. In this talk, I will first introduce the Landweber scheme in three different ways: a gradient method for least-squares problems, a geometrical projection method, and a heuristic derivation. Then I will report results about the convergence of the Landweber scheme and its block iterative version, and extension to linear compact operator equations in infinite dimensional Hilbert spaces. I will also discuss recent results about over-relaxation for the simultaneous version, and the strategy for choosing the equations for the ART. Finally the application to the x-ray tomography will also be presented.
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报告人：
T.Tajima, Professor of University of Munich
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题目：
Recent Topics on Laser Acceleration
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时间：
2011年2月17号10:30
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地点：
加速器楼408
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摘要：
Toshiki Tajima: Professor Tajima served as Jane and Roland Blumberg Professor at the University of Texas at Austin,
later as Director General of Kansai Photon Science Institute of JAEA, currently as Guest Professor of University of Munich
and Specially Appointed Professorship of KEK. He, with John Dawson, suggested laser acceleration in 1979. He is
considered a father of High Field Science and currently Chair of International Committee for Ultra Intense Lasers.
Recipient of 2009 Blaise Pascal Chair, Nishina Memorial Prize, Suwa Prize of Accelerator Physics, Farrington Daniels
Award (for beam therapy).
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报告人：
王鲁闽 博士（美国密歇根大学核工程系终生教授、厦门大学能源研究院讲座教授）
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题目：
Enhancing the Curie Temperature of Ferromagnetic Semiconductor (Ga,Mn)As to
200 K via Nanostructure Engineering
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时间：
2010年12月30日上午10点
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地点：
北京大学加速器楼408会议室（北京大学东门外向东200米。成府路201号，蓝旗营丁字路口，路北）
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摘要：
核反应堆堆芯材料需要长时间在高温，高应力和高辐照通量等极端环境中工作。现有核电站的长期安全运行极大程度上依赖于堆芯材料在极端环境中的稳定可靠性。正在研究开发的新型核反应堆则对堆芯材料提出了更高的要求。材料在核反应堆极端环境中的特殊性体现在辐照效应和辐照催生效应，包括辐照硬化，辐照肿胀及辐照促进的应力腐蚀开裂等。而所有这些宏观效应都开始于辐照引发的点缺陷形成，迁移和聚集。因此，使用透射电子显微镜在纳米尺度上对材料的辐照效应进行研究对评估现有材料的抗辐照性和开发新型抗辐照材料有重要的意义。传统的反应堆材料的辐照损伤研究一般要经过在核反应堆中的中子辐照完成。但是，由于实验周期长，费用高，实验设施缺乏，样品带有放射性等原因，高剂量的中子辐照实验只能在世界上十分有限的几个实验室中进行。国际上大量的材料辐照损伤实验是通过加速器产生的高能离子束辐照完成的。大量的实验对比结果已经证明，使用离子束辐照完全可以造成与中子辐照所产生的相同的显微结构，因而是一种经济，快捷，可控，有效的辐照损伤研究方法。但是，由于粒子质量，能量，剂量率和嬗变元素含量等不同因素的影响，建立完整的离子束辐照和中子辐照的对等关系还是一个十分具有挑战性的课题。本报告基于报告人多年显微分析的研究结果，将对离子束辐照损伤研究的利弊，材料辐照损伤基本机理和缓解办法，以及国际上辐照损伤研究的最新动态和趋势做一个基本的介绍。
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报告人：
赵建华，研究员（科学院半导体研究所，超晶格和微结构国家重点实验室 ）
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题目：
Enhancing the Curie Temperature of Ferromagnetic Semiconductor (Ga,Mn)As to
200 K via Nanostructure Engineering
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时间：
2010年12月28日，星期二上午十点
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地点：
北京大学加速器楼408会议室（北京大学东门外向东200米。成府路201号，蓝旗营丁字路口，路北）
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摘要：
The ferromagnetic semiconductor (Ga,Mn)As has stimulated a great deal of interest in the past decade due to its potential application in semiconductor spintronic devices.1,2 Many important spintronic functionalities have been realized based on this material. However, all of the device operations were demonstrated at temperatures much below room temperature. For practical applications, increasing the Curie temperature TC beyond room temperature is a necessity. The highest TC obtained in (Ga,Mn)As to date is 191 K,3 thus exploring various routes to increase this value is of great fundamental and practical significance. In this talk, I will introduce our recent work that TC as high as 200 K was obtained after low-temperature annealing a patterned nanowire,4 which was demonstrated through measurements of temperature dependent resistance, Hall effect and Arrott plots.
If time is enough, in this talk I would like to give a brief introduction about our recent work on other semiconductor spintronic materials.
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报告人：
李宝安教授 （Department of Physics and Astronomy, Texas A&M University-Commerce）
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题目：
Probing the Equation of State of Neutron-Rich Nuclear Matter with Heavy-Ion Reactions
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时间：
12月14日下午2：30
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地点：
北京大学加速器楼408会议室
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联系人：
许甫荣（frxu@pku.edu.cn)
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摘要：
Heavy-ion reactions, especially those induced by radioactive beams, provide a unique opportunity to probe the Equation of State (EOS) of neutron-rich nuclear matter in terrestrial nuclear laboratories. The isospin-dependent part of the EOS, i.e., the density dependence of the nuclear symmetry energy, is still rather poorly known especially at supra-saturation densities. However, it is very important for many interesting phenomena in both astrophysics and nuclear physics. In this talk, I shall first discuss why the density dependence of the nuclear symmetry energy is currently very uncertain at supra-saturation densities and what fundamental physics we can learn from studying the symmetry energy. Some recent progress and main challenges of constraining the high-density symmetry energy will then be discussed. Finally, some astrophysical implications of the currently partially constrained nuclear symmetry energy will be presented.
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报告人：
张会博士（哈佛大学肯尼迪政府学院）
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题目：
Discussions of China's commercial reprocessing policy
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时间：
12月14日下午2：30
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地点：
北京大学加速器楼408会议室
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简介：
This talk will discuss whether China should build a large commercial reprocessing plant and fast-neutron reactors in the near term, taking account the costs, energy security, proliferation risks, health and environmental risks, and spent fuel managements issues.
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报告人：
冯坚教授（上海交通大学）
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题目：
CT成像技术中从不完全投影进行非迭代重构的研究
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时间：
2010年12月13日（周一）上午9:00
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地点：
北京大学加速器楼208会议室
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联系人：
郭之虞（zhyguo@pku.edu.cn）
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简介：
针对从不完全投影数据重构的带角插值的滤波逆投影算法，将原来只能用于完全投影数据的滤波逆投影算法应用到了不完全投影数据，做了数值试验并用C语言加以实现，在新一代低放射剂量医学成像设备的研制、核工程和国防建设中都有相应的应用。
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报告人：
Prof. Isao Tanihata
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题目：
Matter and charge radii of halo nuclei
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时间：
2010年11月19日下午4点
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地点：
加速器楼408
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联系人：
许甫荣（frxu@pku.edu.cn）
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报告人：
Dr. Frank Wissmann
Physikalisch-Technische Bundesanstalt (PTB), GERMANY
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题目：
The PTB Ion Accelerator Facility
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时间：
11月10号（星期三）上午9:00
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地点：
北京大学二加速器楼208室
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联系人：
樊铁栓（62760299,tsfan@pku.edu.cn）
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报告人：
Haiyan Gao (Department of physics and Triangle Universities Nuclear Laboratory, Duke University,Durham,
NC 27708 , U.S.A; Department of physics, Tsinghua University, Beijing, China)
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题目：
Future Spin Physics at JLAB
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时间：
2010年11月8日15：00（星期一）
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地点：
物理楼中212
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联系人：
冒亚军（maoyj@pku.edu.cn)
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报告人：
Prof. Frank von Hippel
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题目：
Once-through Nuclear Fuel Cycle--The Most Economical and Proliferation-Resistant
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时间：
2010年11月2日（周二）上午10：30
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地点：
北京大学加速器楼408
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联系人：
王宇钢 (62755406,ygwang@pku.edu.cn)
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报告人：
李亚东研究员（中科院等离子物理研究所）
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题目：
HT-7装置等离子体密度涨落测量
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时间：
10月21号（星期四）下午2:30
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地点：
加速器楼208室
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联系人：
樊铁栓
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报告人：
钟赐贤先生, 北京大学客座教授
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题目：
Modern Physics Discovery and Nuclear Reactor Evolution
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时间：
2010年10月22日（周五）下午3：00
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地点：
北京大学二教306
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联系人：
王宇钢 (62755406,ygwang@pku.edu.cn)
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报告人：
Marcel Toulemonde教授，CIMAP-GANIL, France
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题目：
Material modifications of SiO2 irradiated with heavy ions
from GeV to keV energy
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时间：
2010年10月21日（周四）下午2：30
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地点：
加速器楼408会议室
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联系人：
王宇钢 (62755406,ygwang@pku.edu.cn)
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报告人：
谢逊博士 （Max-Planck Institute of Quantum Optics，GERMANY ）
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题目：
Ultrafast High-Power OPCPA Systems and Their Applications
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时间：
10月25日（周一）上午9点
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地点：
加速器楼208
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背景：
在马普量子光学所，主持了两个超强超短OPCPA激光的建造工作。他正在主持的LWS20是一个100TW，5Fs的激光系统是目前品质最好的激光系统之一
（对比度10^11,脉冲最短的TW激光器仅仅2个周期）。
第012期：Solid-mechanical elasticity of continuous nuclear matter
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报告人：
Prof. Sergey Bastrukov
Joint Institute for Nuclear Research, Dubna, Russia
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题目：
CT Dosimetry
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时间：
9月23日（周四）下午4：00
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地点：
北京大学加速器楼408会议室
第011期：CT Dosimetry
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报告人：
Dr. John Rong
MD Addreson , America
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题目：
CT Dosimetry
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时间：
9月21日（周二）下午2：00
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地点：
北京大学加速器楼408会议室
第010期：The Raytheon-SORDS Trimodal Imager
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报告人：
Michael V. Hynes 博士, Raytheon, Integrated Defense Systems（美国雷声公司综合防御系统公司）Principal Engineering Fellow
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题目：
The Raytheon-SORDS Trimodal Imager
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时间：
2010年9月20日，星期一 15:00--17:00
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地点：
加速器楼408
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注：
Stand-off Radiation Detection System (SORDS) 可译为“防区外辐射探测系统”，该装置综合运用编码光阑技术、康普顿成像技术和阴影成像技术以检测特殊核材料(SNM)。
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Abstract:
The Raytheon Trimodal Imager (TMI) uses coded aperture and Compton imaging technologies as well as the non-imaging shadow technology to locate an SNM or radiological threat in the presence of background. The coded aperture imaging is useful for locating and identifying radiological threats as these threats generally emit lower energy gammas whereas the Compton imaging is useful for SNM threats as in addition to low energy gammas which can be shielded, SNM threats emit higher energy gammas as well. The shadow imaging technology utilizes the structure of the instrument and its vehicle as shadow masks for the individual detectors which shadow changes as the vehicle moves through the environment. Before a radioactive source comes into the fields of view of the imagers it will appear as a shadow cast on the individual detectors themselves. This gives the operator advanced notice that the instrument is approaching something that is radiological and on which side of the vehicle it is located. The two nuclear images will be fused into a combined nuclear image along with isotope ID. This combined image will be further fused with a real-time image of the locale where the vehicle is passing. A satellite image of the locale will also be made available. This instrument is being developed for the Standoff Radiation Detection System (SORDS) program being conducted by Domestic Nuclear Detection Office (DNDO) of the Department of Homeland Security (DHS).
第009期：Materials Research for ADS and Spallation Neutron Sources at the Paul Scherrer Institute
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报告人：
戴勇 博士, 瑞士联邦Paul Scherrer 研究所(PSI)终生高级研究员
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题目：
Materials Research for ADS and Spallation Neutron Sources at the Paul Scherrer Institute
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时间：
2010年9月6日，星期一 15:00--17:00
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地点：
加速器楼408
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Abstract:
The R&D of high power spallation targets has been stimulated by increasing demands for different applications such as the neutron scattering sciences and the accelerator driven system (ADS) for nuclear waste transmutation. Among a number of key issues in the R&D, one is the understanding of the behavior of structural materials in severe irradiation environments in spallation targets. The mechanical properties of structural materials in the spallation reaction zone of a spallation target suffer greatly from the effects induced by radiation displacement damage, transmutation products (especially helium and hydrogen) and liquid metal corrosion/erosion and embrittlement. Although these topics have been studied for decades, many open questions still need to be answered. A worldwide effort has been focused on studying the radiation damage effect of high-energy protons and spallation neutrons on different structural materials by conducting irradiation experiments in the targets of the Swiss spallation neutron source (SINQ) at the Paul Scherrer Institut. A significant progress has been achieved in better understanding the synergistic effect of displacement damage and helium. On the other hand, the liquid metal corrosion and embrittlement effects are also extensively studied in European 5th to 7th Framework Program, where we have made significant contributions as well. In this presentation, the main results of our studies on both irradiation and liquid metal effects of various materials will be shown.
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报告人：
Prof. Wolfgang Lorenzon
(University of Michigan)
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题目：
Exploring Nucleon Structure with Drell-Yan Scattering at Fermilab
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时间：
14:00-16:00, Aug. 23, 2010, Monday
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地点：
South 208 Meeting ROOM, Physics Building, School of Physics, PKU
(北大物理学院物理楼南208会议室)
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Abstract:
While years of deep inelastic electron and muon scattering experiments have lead to a rich set of proton structure function data, large uncertainties in the anti-quark distributions still exist today owing to the inability of QCD to predict the origins of these distributions. E-906/SeaQuest, currently being commissioned at Fermilab, is an experiment that employs proton-induced Drell/Yan production of muon pairs on hydrogen, deuterium and heavy nuclear targets using the Fermilab Main Injector as a proton source to determine the anti-quark distribution in the nucleon sea. Projections for seaquark distributions on nucleons and nuclei will be presented, as well as a brief discussion of possible future polarized Drell-Yan experiments at Fermilab’s Main Injector and their implications on QCD.
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报告人：
Prof. Ming X. Liu, (Los Alamos National Lab, USA)
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题目：
Latest News of Transverse Spin Physics from RHIC
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时间：
10:30-12:30, Aug. 23, 2010, Monday
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地点：
South 208 Meeting ROOM, Physics Building, School of Physics, PKU
(北大物理学院物理楼南208会议室)
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Abstract:
There has been tremendous experimental and theoretical progress in recent years toward understanding the physics involved with transversely polarized beams (or targets) in high-energy collisions. The Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory delivers the world’s highest energy polarized proton-proton collisions with the center of mass energy up to 500 GeV and provides a unique opportunity to study the spin structure and QCD dynamics in transversely polarized proton-proton collisions at high energy.
During the 2006 and 2008 RHIC runs, the RHIC experiments, BRAHMS, PHENIX and STAR, took a significant amount of transversely polarized p+p collision data at the center of mass energies of 62 and 200 GeV, with beam polarization of 45%(run8) and 57%(run6). In this talk, I will highlight the latest results from the RHIC experiments, followed by a brief discussion of the future prospects with the upgrade detectors at RHIC.
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报告人：
Prof. Roberto Liotta
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题目：
Nuclear clustering and radioactive decay
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单位：
瑞典皇家理工大学
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时间：
7月22日下午4点
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地点：
加速器楼408
第004期：Advanced Approaches to High Intensity Laser-Driven Ion Acceleration
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报告人：
Dr. Andreas Florian Henig （Max-Planck-Institut für Quantenoptik）
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题目：
Advanced Approaches to High Intensity Laser-Driven Ion Acceleration
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时间：
7月5日 下午15:00-16:20
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地点：
北大加速器楼208 （北大东门外，北大出版社东边的楼）
第003期：受控核聚变----人类能源的希望与未来
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报告人：
李建刚研究员，国家磁约束核聚变专家委员会副主任；中科院等离子体物理研究所所长
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题目：
Advanced Approaches to High Intensity Laser-Driven Ion Acceleration
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时间：
2010年6月25日（星期五）下午3点
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地点：
bt365体育南楼408