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Charge resolution in the isochronous mass spectrometry and the mass of ^(51)Co

Nuclear Science and Techniques 2021年第4期32卷 30-37页

作者： Xu Zhou Meng Wang Yu-Hu Zhang Hu-Shan Xu You-Jin Yuan Jian-Cheng Yang Yu.A.Litvinov S.A.Litvinov Bo Mei Xin-Liang Yan Xing Xu Peng Shuai Yuan-Ming Xing rui-Jiu Chen Xiang-Cheng Chen Chao-Yi fu Qi Zeng Ming-Ze Sun Hong-fu Li Qian Wang Tong Bao Min Zhang Min Si Han-Yu Deng Ming-Zheng Liu Ting Liao Jin-Yang Shi Yu-Nan Song Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China gsi helmholtzzentrum fu¨r schwerionenforschung Planckstraße 164291 DarmstadtGermany Sino-french Institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China School of Science Xi’an Jiaotong UniversityXi’an 710049China School of Nuclear Science and Engineering East China University of TechnologyNanchang 330013China CNrS/IN2P3 IJCLabUniversite´Paris-Saclay91405 OrsayFrance

Isochronous mass spectrometry(IMS)of heavyion storage rings is a powerful tool for the mass measurements of short-lived *** IMS experiments,masses are determined through precision measurements of the revolution times of the ions stored in the ***,the revolution times cannot be resolved for particles with nearly the same mass-to-charge(m/q)*** overcome this limitation and to extract the accurate revolution times for such pairs of ion species with very close m/q ratios,in our early work on particle identification,we analyzed the amplitudes of the timing signals from the detector based on the emission of secondary ***,the previous data analysis method is further improved by considering the signal amplitudes,detection efficiencies,and number of stored ions in the ring.A sensitive Z-dependent parameter is introduced in the data analysis,leading to a better resolution of ^(34)Ar^(18+) and ^(51)Co^(27+) with A/Z=17/*** mean revolution times of ^(34)Ar^(18+) and ^(51)Co^(27+) are deduced,although their time difference is merely 1.8 *** uncorrected,overlapped peak of these ions has a full width at half maximum of 7.7 *** mass excess of ^(51)Co was determined to be-27;332e41T keV,which is in agreement with the previous value of-27;342e48T keV.

关键词： Isochronous mass spectrometry Charge resolution Signal amplitude Micro-channel plate ^(51)Co

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内壳层体系的X射线腔量子光学

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物理学报 2024年第24期73卷 37-62页

作者：汪书兴李天钧黄新朝朱林繁中国科学技术大学近代物理系合肥230026 I.Physikalisches Institut Justus-Liebig-Universität Gießen and Helmholtz Forschungsakademie Hessen für FAIR(HFHF)Campus GießenGSI Helmholtzzentrum für SchwerionenforschungGießen 35392Germany fXE Instrument European XFELSchenefeld 22869Germany

随着X射线光源品质的提升,X射线波段的量子调控成为了新兴的前沿领域,基于薄膜平面腔的X射线腔量子光学是其中一个重要分支.X射线腔量子光学研究始于原子核跃迁体系,近期兴起了调控原子内壳层跃迁的研究工作.原子内壳层跃迁存在丰富的... 详细信息

随着X射线光源品质的提升,X射线波段的量子调控成为了新兴的前沿领域,基于薄膜平面腔的X射线腔量子光学是其中一个重要分支.X射线腔量子光学研究始于原子核跃迁体系,近期兴起了调控原子内壳层跃迁的研究工作.原子内壳层跃迁存在丰富的候选体系和退激通道,极大地拓宽了X射线腔量子光学的研究范围.此外,内壳层激发及其退激通道对应着多种X射线谱学表征技术,促进X射线腔量子光学和谱学技术的融合,有望促成X射线谱学新技术的出现.本文概述了基于原子内壳层跃迁的X射线腔量子光学,介绍了基本的实验体系和实验方法、经典和量子理论模型以及已经实现的一些量子光学现象.最后,本文简要介绍了内壳层X射线腔量子光学仍需要解决的一些问题,同时展望了未来的发展方向.

关键词： X 射线量子光学薄膜平面腔同步辐射原子内壳层跃迁

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The NUBASE2012 evaluation of nuclear properties

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Chinese Physics C 2012年第12期36卷 1157-1286页

作者： G.Audi f.G.Kondev M.Wang B.Pfeiffer X.Sun J.Blachot M.MacCormick Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse CSNSMCNRS/IN2P3Universlte Paris-SudBat.108F-91405 Orsay CampusFrance Argonne National Laboratory 9700 S.Cass AvenueArgonneIL 60439USA Max-Planck-Institut fur Kernphysik Saupfercheckweg 1D-69117 HeidelbergGermany Institute of Modem Physics CAS509 Nanchang Rd.Lanzhou 730000China gsi helmholtzzentrum fur schwerionenforschung Planckstr.1D-64291 DarmstadtGermany Institut de Physique Nucléaire CNRS/IN2P3Universite Paris-SudF-91406 Orsay cedexFrance

This paper presents the NUBASE2012 evaluation that contains the recommended values for nuclear and decay properties of nuclides in their ground and excited isomeric （T1/2≥ 100 ns） states. All nuclides for which some experimental information is known are considered. NUBASE2012 covers all up to date experimental data published in primary （journal articles） and secondary （mainly laboratory reports and conference proceedings） references, together with the corresponding bibliographical information. During the development of NUBASE2012, the data available in the ＂Evaluated Nuclear Structure Data file＂（ENSDf） database were consulted, and critically assessed of their validity and completeness. furthermore, a large amount of new and somewhat older experimental results that were missing in ENSDf were compiled, evaluated and included in NUI3ASE2012. The atomic mass values were taken from the ＂Atomic Mass Evaluation＂（AME2012, second and third parts of the present issue）. In cases where no experimental data were available for a particular nuclide, trends in the behavior of specific properties in neighboring nuclei （TNN） were examined. This approach allowed to estimate, whenever possible, values for a range of properties, and are labeled in NUBASE2012 as ＂non-experimental＂（flagged ＂#＂）. Evaluation procedures and policies that were used during the development of this database are presented, together with a detailed table of recommended values and their uncertainties.

关键词： IT ru The NUBASE2012 evaluation of nuclear properties

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快重离子在石墨中引起表面及体径迹的STM研究

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核技术 2002年第7期25卷 501-505页

作者：刘杰 r.Neumann C.Trautmann C.Müller 侯明东金运范金运范中国科学院近代物理研究所兰州730000 Gesellschaft für schwerionenforschung (gsi) 中国科学院近代物理研究所兰州730000

用多种快重离子辐照高定向石墨 (HOPG) ,借助扫描隧道显微镜 (STM )系统地研究了表面及体内缺陷。结果表明 ,离子在表面及解理面上都形成了小丘状的缺陷 ,且在表面较容易形成。

关键词：重离子高定向石墨扫描隧道显微镜辐射损伤径迹

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relation between gravitational mass and baryonic mass for non-rotating and rapidly rotating neutron stars

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frontiers of physics 2020年第2期15卷 119-128页

作者： He Gao Shun-Ke Ai Zhou-Jian Cao Bing Zhang Zhen-Yu Zhu Ang Li Nai-Bo Zhang Andreas Bauswein Department of Astronomy Beijing Normal UniversityBeijing 100875China Department of Physics and Astronomy University of Nevada Las VegasNV 89154USA Department of Astronomy Xiamen UniversityXiamen 361005China Institute for Theoretical Physics Max-von-Laue-Strasse 160438 FrankfurtGermany Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment School of Space Science and PhysicsInstitute of Space SciencesShandong UniversityWeihai 264209China gsi helmholtzzentrum fiir schwerionenforschung Planckstrafie 164291 DarmstadtGermany

With a selected sample of neutron star(NS)equations of state(EOSs)that are consistent with the current observations and have a range of maximum masses,we investigate the relations between NS gravitational mass Mg and baryonic mass and the relations between the maximum NS mass supported through uniform rotation(Mmax)and that of nonrotating NSs(Mtov).We find that for an EOS-independent quadratic,universal transformation formula(Mb=Mg+A×M^2/g),the best-fit A value is 0.080 for non-rotating NSs,0.064 for maximally rotating NSs,and 0.073 when NSs with arbitrary rotation are *** residual error of the transformation is?0.1M⊙ for non-spin or maximum-spin,but is as large as?0.2M⊙ for all *** different EOSs,we find that the parameter A for non-rotating NSs is proportional to r^-1/1.4(where r1.4 is NS radius for 1.4M⊙ in units of km).for a particular EOS,if one adopts the best-fit parameters for different spin periods,the residual error of the transformation is smaller,which is of the order of O.O1M⊙ for the quadratic form and less than O.O1M⊙ for the cubic form(Mb=Mg+A1×M^2/g+A2×M^3/g).We also find a very tight and general correlation between the normalized mass gain due to spin △m≡(Mmax-MTOV)MTOV and the spin period normalized to the Keplerian period P,i.e.,log10 △m=(-2.74±0.05)log10 P+log10(0.20±0.01),which is independent of EOS *** empirical relations are helpful to study NS-NS mergers with a long-lived NS merger product using multi-messenger *** application of our results to GW170817 is discussed.

关键词： gravitational waves

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重离子储存环CSre上激光冷却相对论能量类锂^(12)C^(3＋)离子束的实验研究进展

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中国科学：物理学、力学、天文学 2016年第5期46卷 98-108页

作者：汶伟强汪寒冰黄忠魁张大成海帮朱小龙啜晓亚赵冬梅杨杰李杰李小妮冒立军毛瑞士武军霞夏佳文杨建成原有进赵红卫赵铁成 EIDAM Lewin LOESEr Markus rEIN Benjamin SIEBOLD Matthias WINTErS Danyal BUSSMANN Michael 马新文中国科学院近代物理研究所兰州730000 中国科学院大学北京100049 gsi helmholtzzentrum fur schwerionenforschung gmbh Darmstadt D-64291Germany Helmholtz-Zentrum Dresden-rossendorf Dresden D-01328Germany Technische Universitat Darmstadt Darmstadt D-64289Germany

激光冷却储存环中相对论能量的重离子束是最有希望得到高相空间密度离子束、实现离子束相变并且获得有序束和晶化束的一种方法.相对于已经比较成熟的随机冷却和电子冷却技术,储存环上重离子束的激光冷却具有冷却速度快,冷却作用力强的特... 详细信息

激光冷却储存环中相对论能量的重离子束是最有希望得到高相空间密度离子束、实现离子束相变并且获得有序束和晶化束的一种方法.相对于已经比较成熟的随机冷却和电子冷却技术,储存环上重离子束的激光冷却具有冷却速度快,冷却作用力强的特点,可以将离子束冷却到极低温度(mK),在激光冷却的同时还可以开展高电荷态离子的精细激光谱学实验.本文介绍了中国科学院近代物理研究所大科学装置重离子冷却储存环CSre上开展激光冷却重离子束的实验原理和实验方法,给出了在CSre上首次激光冷却能量为122 MeV/u的类锂^(12)C^(3+)离子束测试性实验结果,并且展望了在未来大型加速器HIAf上开展类锂类钠高电荷态离子的激光冷却和精细激光谱学实验.

关键词：激光冷却高电荷态离子重离子储存环晶化束束流动力学

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factor 30 Pulse Compression by Hybrid Multipass Multiplate Spectral Broadening

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Ultrafast Science 2022年第1期2卷 17-26页

作者： Marcus Seidel Prannay Balla Chen Li Gunnar Arisholm Lutz Winkelmann Ingmar Hartl Christoph M.Heyl Deutsches Eilektronen Synchrotron DESY Notkestrasse 8522607 HamburgGermany Helmholtz Institute Jena Frobelstieg 307743 JenaGermany gsi helmholtzzentrum fir schwerionenforschung gmbh Planckstrasse 164291 DarmstadtGermany ffI(Norwegian Defence research Estabishment) P.O.Box 25NO 2027 KjellerNorway

As ultrafast laser technology advances towards ever higher peak and average powers,generating sub-50 fs pulses from laser architectures that exhibit best power-scaling capabilities remains a major ***,we present a very compact and highly robust method to compress 1.24 ps pulses to 39fs by means of only a single spectral broadening stage which neither requires vacuum parts nor custom-made *** approach is based on the hybridization of the multiplate continuum *** multipass cell spectral broadening *** combination leads to significantly higher spectral broadening factors in bulk material than what has been reported from either method ***,our approach efficiently suppresses adverse features of single-pass bulk spectral *** use a burst-mode Yb:YAG laser emitting pulses with 80 MW peak power that are enhanced to more than 1 GW after *** only 0.19%rms pulse-to-pulse energy fluctuations,the technique exhibits excellent ***,we have measured state-of-the-art spectral-spatial homogeneity and good beam quality of M^(2)=1.2 up to a spectral broadening factor of *** to the method's simplicity,compactness,and scalability,it is highly attractive for turning a picosecond laser into an ultrafast light source that generates pulses of only a few tens of femtoseconds duration.

关键词： attractive simplicity Pulse

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Development Work at JYfL:Plasma Potential Measurements,Electron Heating Simulations,JYfL-MMPS,High Temperature Ovens

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Chinese Physics C 2007年第S1期31卷 41-45页

作者： H.Koivisto P.frondelius T.Koponen P.Lappalainen T.ropponen M.Savonen P.Suominen O.Tarvainen K.Tinschert G.Ciavola Department of Physics University of JyvskylFI-40014 University of JyvskylFinland Gesellschaft für schwerionenforschung mbH:gsi DarmstadtGermany Istituto Nazionale fisica Nucleare-Laboratori Nazionali del Sud:INfN-LNS CataniaItaly

Extensive plasma potential measurements have been carried out using a device developed at JYfL. In this article the main results of the measurements will be summarized.A new simulation code to study the electron heating is being *** objective of the code is to determine the change of the electron loss cone when the magnetic field component of the electromagnetic wave is taken into account along with the permittivity of the *** a part of the work,accurate X-ray measurements have been initiated. A new plasma chamber based on the MMPS-concept(Modified MultiPole Structure)has successfully been constructed and tested with the JYfL 6.4GHz *** results and conclusions will be presented elsewhere in these *** the same article,a new concept of ECrIS and first results will be *** active development work of evaporation ovens has been carried out in a joint European collaboration(ISIBHI). The objective of the task is to make the operation of the oven reliable at 2000℃for several *** resistively and inductively heated ovens have been studied and further *** status of this work will be presented.

关键词： plasma potential evaporation ovens

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revisit to Two-Proton radioactivity of 19Mg and Observation of Two-Proton Decay of 30Ar

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原子核物理评论 2016年第2期33卷 197-202页

作者：徐晓栋 I.Mukha L.Acosta E.Casarejos A.A.Ciemny W.Dominik J.Duénas-Díaz V.Dunin J.M.Espino A.Estradé f.farinon H.Geissel A.fomichev T.A.Golubkova A.Gorshkov L.V.Grigorenko Z.Janas G.Kamiński O.Kiselev r.Knbel S.Krupko M.Kuich Yu.A.Litvinov G.Marquinez-Dur'an I.Martel C.Mazzocchi C.Nociforo A.K.Ord'uz M.Pfützner S.Pietri M.Pomorski A.Prochazka S.rymzhanova A.M.S'anchez-Benítez C.Scheidenberger P.Sharov H.Simon B.Sitar r.Slepnev M.Stanoiu P.Strmen I.Szarka M.Takechi Y.K.Tanaka H.Weick M.Winkler J.S.Winfield Ⅱ.Physikalisches Institut Justus-Liebig-Universitt Gie?en gsi helmholtzzentrum für schwerionenforschung Gmb H School of Physics and Nuclear Energy Engineering Beihang University National research Centre "Kurchatov Institute" INfN Laboratori Nazionali del Sud Instituto de física Universidad Nacional Autónoma de México University of Vigo faculty of Physics University of Warsaw Department of Applied Physics University of Huelva Veksler and Baldin Laboratory of High Energy Physics Department of Atomic Molecular and Nuclear PhysicsUniversity of Seville University of Edinburgh flerov Laboratory of Nuclear reactions Advanced Educational and Scientific Center Moscow State University fSBI "SSC rf ITEP"of NrC "Kurchatov Institute" National research Nuclear University "MEPh I" Institute of Nuclear Physics PAN faculty of Physics Warsaw University of Technology faculty of Mathematics and Physics Comenius University IfIN-HH University of Tokyo

An experiment aimed to investigate the two-proton(2p) decay of the previously unknown nucleus ^(30)Ar was performed at gsi. By tracking the decay products in-flight with silicon micro-strip detectors, the 2p decays of ^(30)Ar were observed for the first time. for the calibration purpose, 2p decays of ^(19)Mg were also remeasured by tracking the coincident ^(17)Ne+p+p trajectories. By comparing the measured angular p-17 Ne correlations with those obtained from the corresponding Monte Carlo simulations,the simultaneous 2p decay of ^(19)Mg ground state and the sequential 2p emission of several known excited states of ^(19)Mg were confirmed. One new excited state in ^(19)Mg and two new excited states in ^(18)Na were observed.

关键词： proton drip line decay by proton emission nuclear energy level

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Collisionless shock acceleration of protons in a plasma slab produced in a gas jet by the collision of two laser-driven hydrodynamic shockwaves

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Matter and radiation at Extremes 2024年第2期9卷 12-25页

作者： J.-r.Marquès L.Lancia P.Loiseau P.forestier-Colleoni M.Tarisien E.Atukpor V.Bagnoud C.Brabetz f.Consoli J.Domange f.Hannachi P.Nicolaï M.Salvadori B.Zielbauer LULI CNRSÉcole PolytechniqueCEASorbonne UniversitéInstitut Polytechnique de Paris91128 Palaiseau CedexFrance CEA DAMDIF91297 Arpajon CedexFrance UniversitéParis-Saclay CEALMCE91680 Bruyères-le-ChatelFrance CENBG CNRS-IN2P3Universitéde Bordeaux33175 Gradignan CedexFrance gsi helmholtzzentrum für schwerionenforschung gmbh Planckstraße 164291 DarmstadtGermany University of Darmstadt Schloßgartenstr.764289 DarmstadtGermany ENEA fusion and Technologies for Nuclear Safety Department C.R.FrascatiVia Enrico Fermi 45FrascatiRomeItaly CELIA Universitéde Bordeaux–CNRS–CEA33405 TalenceFrance UniversitéParis-Saclay CEALIDYL91191 Gif-sur-YvetteFrance

We have recently proposed a new technique of plasma tailoring by laser-driven hydrodynamic shockwaves generated on both sides of a gas jet[Marquès et al.,*** 28,023103(2021)].In a continuation of this numerical work,we study experimentally the influence of the tailoring on proton acceleration driven by a high-intensity picosecond laser in three cases:without tailoring,by tailoring only the entrance side of the picosecond laser,and by tailoring both sides of the gas *** tailoring,the acceleration is transverse to the laser axis,with a low-energy exponential spectrum,produced by Coulomb *** the front side of the gas jet is tailored,a forward acceleration appears,which is significantly enhanced when both the front and back sides of the plasma are *** forward acceleration produces higher-energy protons,with a peaked spectrum,and is in good agreement with the mechanism of collisionless shock acceleration(CSA).The spatiotemporal evolution of the plasma profile is characterized by optical shadowgraphy of a probe *** refraction and absorption of this beam are simulated by post-processing 3D hydrodynamic simulations of the plasma *** with the experimental results allows estimation of the thickness and near-critical density of the plasma slab produced by tailoring both sides of the gas *** parameters are in good agreement with those required for CSA.

关键词： acceleration hydrodynamic collision

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