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Fusion reactions around the barrier for Be+^(238)U

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Chinese Physics C 2021年第5期45卷 100-104页

作者：梅波 dimiter lbalabanski 滑伟张玉虎周小红袁岑溪苏军 Sino-French Institute of Nuclear Engineering and Technology Sun Y at-sen UniversityZhuhai 519082China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China Extreme light Infrastructure Nuclear Physics “Horia Hulubei”National R&D Institute for Physics and Nuclear EngineeringStrada Reactorului 30077125 Bucharest MagureleRomania

Fusion-evaporation cross sections of^(238)U(^(9)Be,5n)^(242)Cm are measured over a wide energy range around the Coulomb *** measured cross sections are compared with model calculations using two codes,namely HIVAP2 and KE ***2 calculations overestimate the measured fusion-evaporation cross sections by a factor of approximately *** KEWPIE2 calculations,two approaches,namely the Wentzel-Kramers-Brillouin(WKB)approximation and the empirical barrier-distribution(EBD)method,are used for the capture probability;both of them properly describe the measured cross ***,fusion cross sections of^(7.9)Be+^(238)Umeas-ured in two experiments are applied to constrain model calculations further through three codes,i.e,HIVAP2,KEWPIE2,and *** in these codes are also examined by comparison with measured fusion cross *** the comparisons indicate that the K EWPIE2 calculations using the WKB approximation agree well with the measured cross sections of both fusion reactions 7.9 Be+^(238)U and the fusion-evaporation reaction 238U(9 Be,5n)242 *** using the fusion code CCFUll are also in good agreement with the measured fusion cross sections of 7.9 Be+^(238)U.

关键词： fusion-evaporation reaction ^(238)U fusion cross sections near barrier energies

在石墨炉原子光谱吸收法中钌、铑、钯作为化学改进剂的对比研究

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绵阳经济技术高等专科学校学报 1998年第3期15卷 85-86页

作者： dimiter l Tsalev 罗碧华

基于康普顿伽玛光-核共振荧光的冰毒无损检测的Geant4模拟（英文）

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基于康普顿伽玛光-核共振荧光的冰毒无损检测的Geant4模拟（英文）

Current status and highlights of the ElI-NP research program

第十九届全国核电子学与核探测技术学术年会

作者：蓝浩洋黄兴德赵盛强周剑良朱志超徐毅 D.l.balabanski 罗文南华大学核科学技术学院 Extreme light Infrastructure-Nuclear Physics

核共振荧光(NRF)技术是鉴别物质中核素成分的有力工具。激光康普顿散射(lCS)伽玛光源具有能量可调、准直性好、强度高等优点,非常适用于核共振荧光技术研究。本文提出了一种基于康普顿伽玛光-核共振荧光的冰毒(CHN)无损检测技术。理论分... 详细信息

核共振荧光(NRF)技术是鉴别物质中核素成分的有力工具。激光康普顿散射(lCS)伽玛光源具有能量可调、准直性好、强度高等优点,非常适用于核共振荧光技术研究。本文提出了一种基于康普顿伽玛光-核共振荧光的冰毒(CHN)无损检测技术。理论分析lCS伽玛光-核共振荧光过程,计算冰毒中C、N的NRF反应截面、退激宽度、退激光子散射角等参数,获得NRF产额与核素比。结果表明,C和N从基态分别跃迁至激发态(2,4438 keV)和(0,4915 keV)时有较大的共振反应截面;前者在入射光的垂直方向有较强的退激辐射,而后者的退激辐射为各向同性分布。研究开发一套激光康普顿伽玛光-核共振荧光模拟程序G4NRF,模拟入射能量为0至5MeV的lCS光源与冰毒靶的相互作用过程和退激辐射的探测过程,获得C和N的NRFγ能谱分布以及核素含量比N/N=0.11,与理论值高度吻合。本研究工作为基于国际高强度lCS光源装置(譬如欧洲极端光基础设施-核物理和中国上海激光电子伽玛源)开展特殊核材料的NRF无损检测实验提供技术方案。

关键词：核共振荧光康普顿伽玛光无损检测

来源： cnki会议评论

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Matter and Radiation at Extremes 2020年第2期5卷 2-25页

作者： K.A.Tanaka K.M.Spohr D.l.balabanski S.Balascuta l.Capponi M.O.Cernaianu M.Cuciuc A.Cucoanes I.Dancus A.Dhal B.Diaconescu D.Doria P.Ghenuche D.G.Ghita S.Kisyov V.Nastasa J.F.Ong F.Rotaru D.Sangwan P.-A.Soderstrom D.Stutman G.Suliman O.Tesileanu l.Tudor N.Tsoneva C.A.Ur D.Ursescu N.V.Zamfir Extreme light Infrastructure(ElI-NP)and Horia Hulubei National Institute for R&Din Physics and Nuclear Engineering(IFIN-HH) Str.Reactorului No.30077125 Bucharest–M˘agureleRomania Johns Hopkins University 3400 N.Charles StreetBaltimoreMaryland 21218USA

The emergence of a new era reaching beyond current state-of-the-art ultrashort and ultraintense laser technology has been enabled by the approval of around V 850 million worth of structural funds in 2011–2012 by the European Commission for the installation of Extreme light Infrastructure(ElI).The ElI project consists of three pillars being built in the Czech Republic,Hungary,and *** challenging proposal is based on recent technical progress allowing ultraintense laser fields in which intensities will soon be reaching as high as I0∼1023Wcm−*** tremendous technological advance has been brought about by the invention of chirped pulse amplification by Mourou and *** is hosting the ElI for Nuclear Physics(ElI-NP)pillar in M˘agurele near *** new facility,currently under construction,is intended to serve the broad national,European,and international scientific *** mission covers scientific research at the frontier of knowledge involving two *** first is laser-driven experiments related to NP,strong-field quantum electrodynamics,and associated vacuum *** second research domain is based on the establishment of a Compton-backscattering-based,high-brilliance,and intenseγbeam with Eγ≲19.5 MeV,which represents a merger between laser and accelerator *** system will allow the investigation of the nuclear structure of selected isotopes and nuclear reactions of relevance,for example,to astrophysics with hitherto unprecedented resolution and *** addition to fundamental themes,a large number of applications with significant societal impact will be *** implementation of the project started in January 2013 and is spearheaded by the ElI-NP/Horia Hulubei National Institute for Physics and Nuclear Engineering(IFIN-HH).Experiments will begin in early 2020.

关键词： intense frontier approval

^(238)U(~9Be,5n)^(242)Cm熔合蒸发反应激发函数测量（英文）

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原子核物理评论 2017年第2期34卷 138-142页

作者：滑伟张玉虎周小红 G.de France D.l.balabanski G.Georgiev 郭应祥马飞雷祥国柳敏良李广顺郭松强赟华韩励想袁岑溪中山大学中法核工程与技术学院广东珠海519082 中国科学院近代物理研究所兰州730000 GANIl ElI-NP Horia Hulubei国家物理和核工程研究所 CSNSM IN2P3-CNRS和巴黎十一大奥赛校区东莞深圳清华大学研究院创新中心广东东莞523808

第一次测量到^(238)U(~9Be,5n)^(242)Cm熔合蒸发反应的激发函数。通过使用叠层靶,在不改变束流能量的条件下,在线获得20个能量点下的实验数据。利用蒸发余核^(242)Cm的半衰期较长,且衰变模式是α衰变的特点,用离线测量α放射性的方法得... 详细信息

第一次测量到^(238)U(~9Be,5n)^(242)Cm熔合蒸发反应的激发函数。通过使用叠层靶,在不改变束流能量的条件下,在线获得20个能量点下的实验数据。利用蒸发余核^(242)Cm的半衰期较长,且衰变模式是α衰变的特点,用离线测量α放射性的方法得到目标核产额。实验最大截面约1 mb,激发函数曲线的形态和峰值所在的能量位置与现有的理论模型的计算结果一致。激发函数的实验数据对选择和优化理论模型,推动超铀核区核物理研究具有重要的意义。

关键词：超铀核熔合蒸发余核激发函数 α衰变叠层靶技术

238U(~9Be,5n)242Cm绝对激发函数测量(英文)

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IMP & HIRFl Annual Report 2009年 41-41页

作者：滑伟 G.Georgiev G.de France D.l.balabanski Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse 2. GANIl 3. INRNE Bulgarian Academy of Sciences

A cross-section measurement for the 238U(9Be,5n)242Cm reaction was carried out in IMP as a collaborative project with *** theoretical calculations of the reaction cross-section using different codes differ by a factor...

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Cross-section Measurement for 238U（9Be, 5n）242Cm Reaction

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2009年第1期 41-41页

作者： Hua Wei Zhang Yuhu Guo Yingxiang Zhou Xiaohong lei Xiangguo Ma Fei Guo Song Qiang Yuhua liu Mingliang Wang Haixia li Guangshun Zhou Houbing Ding Bin Zhang Ningtao li Shicheng Yan Xinliang G. Georgiev G. de France D. l. balabanski Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse Orsay France. GANIl Caen France. INRNE Bulgarian Academy of Sciences Sofia Bulgaria.