U.S.-Romania-Poland Planning for Cooperative Research in Nuclear Astrophysics at the Exteme Light Infrastructure-Nuclear Physics(ELI-NP)Facility in Bucharest, Romania

美国-罗马尼亚-波兰规划在罗马尼亚布加勒斯特的极端轻型基础设施-核物理（ELI-NP）设施进行核天体物理学合作研究

• 批准号: 1443249
• 负责人: Moshe Gai
• 金额: $ 2万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-05-15 至 2017-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1443249&HistoricalAwards=false
• 关键词: U.S.; Romania; Poland; Planning; Cooperative; U.S.; Romania; Poland; Planning; Cooperative

Through a set of catalytic activities U.S. scientists at the University of Connecticut and Duke University intend to forge a long-term partnership for studies in nuclear astrophysics with international collaborators in Poland and Romania. The U.S. principal investigator, Moshe Gai, and Henry Weller of Duke University will cooperate with counterparts Wojciech Dominik, at the University of Warsaw, and Ovidiu Tesilean, at the Extreme Light Infrastructure-Nuclear Physics (ELI-NP) being constructed near Bucharest. Together, they will prepare the groundwork for new basic research in nuclear astrophysics and use of the gamma-ray beam facility of the ELI-NP in Magurele-Bucharest, Romania. This cooperation aims to leverage significant European Union investments in experimental ELI infrastructure while engaging U.S. expertise in the design of an electronic Time Projection Chamber (eTPC) detector and gas recycling system. For broader impact, breakthroughs that eventually contribute to a high-end gas recycling and purification system could yield ideas for future industrial applications. Because one U.S. postdoctoral student will participate in the early simulations and detector design, other benefits include early career engagement in this forefront U.S.-European teamwork. If successful, preliminary results should contribute to new concepts for detector technology capable of providing a highly precise determination of an important astrophysical quantity, the carbon-to-oxygen ratio in stellar helium burning. This collaboration presents a unique opportunity to link use of a new laser facility and planning for a new detector with a new novel u-v-w electronic Readout, developed in Warsaw for measuring x-ray emissions. After completed construction and with additional research support, results should allow scientists to determine photo nuclear cross sections for center-of-momentum energies lower than those investigated at the High Intensity gamma-ray Source (HIgS) facility in the U.S. The new data obtained can be expected to reduce the ambiguities in the astrophysical S-factors obtained at HIgS and therefore lead to determining a more precise carbon-to-oxygen ratio. The researchers hope that their new method may be applied to other important astrophysical reactions.

通过一系列催化活动，康涅狄格大学和杜克大学的美国科学家打算与波兰和罗马尼亚的国际合作者建立长期合作核心物理学研究。 美国首席研究员Moshe Gai和杜克大学的Henry Weller将与Warsaw大学的Wojciech Dominik和Ovidiu Tesilean合作，在Bucharest附近建造的极端光基础设施 - 核核物理学（ELI-NP）。 他们将共同为核天体物理学的新基础研究做好基础，并使用罗马尼亚Magurele-Bucharest的Eli-NP的Gamma-ray梁设施。 这种合作旨在利用欧盟在实验性ELI基础设施中进行的重大投资，同时吸引美国专业知识，以设计电子时间投影室（ETPC）检测器和天然气回收系统。 对于更广泛的影响，最终有助于高端气体回收和纯化系统的突破可以为未来的工业应用产生想法。 由于一名美国博士后学生将参加早期的模拟和探测器设计，因此其他好处包括早期职业参与到美国 - 美国 - 欧洲团队中。如果成功，初步结果应该有助于探测器技术的新概念，能够高度精确地确定重要的天体物理量，即恒星氦燃烧的碳与氧气比。 这项合作提供了一个独特的机会，可以将新的激光设施的使用与新探测器的计划与新的新型U-V-W电子读数进行链接，该新型探测器在华沙开发，用于测量X射线排放。在完成施工并获得额外的研究支持之后，结果应允许科学家确定在美国高强度γ射线源（HIGS）设施低于在美国所获得的高强度伽马射线源（HIGS）设施低的光核横截面，预计获得的新数据可以减少在HIGS中获得的天体物理学歧义性的歧义性，从而确定了car仪和更精确地确定carben car仪。研究人员希望他们的新方法可以应用于其他重要的天体物理反应。