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^(238)U(~9Be,5n)^(242)Cm熔合蒸发反应激发函数测量(英文)
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作者 滑伟 张玉虎 +12 位作者 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 《原子核物理评论》 CSCD 北大核心 2017年第2期138-142,共5页
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... 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。 展开更多
关键词 超铀核 熔合蒸发余核 激发函数 Α衰变 叠层靶技术
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Current status and highlights of the ELI-NP research program 被引量:16
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作者 K.A.Tanaka K.M.Spohr +25 位作者 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 《Matter and Radiation at Extremes》 SCIE CAS 2020年第2期2-25,共24页
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 ... 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 Romania.This challenging proposal is based on recent technical progress allowing ultraintense laser fields in which intensities will soon be reaching as high as I0∼1023Wcm−2.This tremendous technological advance has been brought about by the invention of chirped pulse amplification by Mourou and Strickland.Romania is hosting the ELI for Nuclear Physics(ELI-NP)pillar in M˘agurele near Bucharest.The new facility,currently under construction,is intended to serve the broad national,European,and international scientific community.Its mission covers scientific research at the frontier of knowledge involving two domains.The first is laser-driven experiments related to NP,strong-field quantum electrodynamics,and associated vacuum effects.The 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 technology.This 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 accuracy.In addition to fundamental themes,a large number of applications with significant societal impact will be developed.The 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. 展开更多
关键词 INTENSE FRONTIER APPROVAL
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