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质量碎片
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  mass fragment
     The fragment angular distributios for 16O+159Tb, 16O+197Au and 16O+209Bireactions have been measured by the solid state track detctors. After subtraction ofthe contribution of intermediate mass fragment (IMF), the fission angular distributionshave been fitted by the transitional state statistical model (TSM)and the single spinstandard theory to extract the spins of the fission nuclei.
     采用核固体径迹探测器测量了 ̄(16)O+ ̄(159)Tb、 ̄(16)O+ ̄(197)Au和 ̄(16)O+ ̄(209)Bi反应碎片角分布,扣除中等质量碎片(IMF)的贡献,用过渡态统计模型(TSM)和单个自旋标准理论拟合实验的裂变角分布,提取裂变核的自旋。
短句来源
     The intermediate mass fragment measurements in the reaction 40Ar+159Tb at30MeV/u with an array of △E(Si)+E(BGO) telescopes were carried out . The resultsindicate that this detector array is suitable for the identification of intermediate massfragments.
     报道30MeV小40Ar+159Tb反应中用于中等质量碎片(Z≥3)测量的△E(Si)+E(BGO)望远镜阵列的测试结果,实验表明该探测器阵列对中等质量碎片有较好的粒子鉴别能力。
短句来源
     The characters of energy dependence and the intermediate mass fragment production in the process of incomplete deep inelastic collision were discussed.
     随着轰击能量升高,非完全深部非弹性碰撞分量变小,50MeV/u时已有碎裂发生,150MeV/u时已是典型的碎裂过程. 同时对中间质量碎片发射的起因做了讨论.
短句来源
     The calculation results show that the correlation between the intermediate mass fragment multiplicity N imf and the total number of charged particles N c is a sensitive observable for probing in medium isospin dependent nucleon nucleon cross section in the chosen energy region.
     计算结果表明 ,在多重碎裂过程中中等质量碎片多重性与带电粒子总数之间的关联是在所选能区提取介质中同位旋相关核子 -核子碰撞截面的灵敏观察量 .
短句来源
  mass fragments
     Fluctuation and Emission of Intermediate Mass Fragments inHeavy Ion Collisions at Medium Energy
     中能重离子碰撞中的涨落和中间质量碎片发射的机制
短句来源
     The emission time of intermediate mass fragments has been studied as afunction of spatial evolution of the source for 40Ar+159 Tb reaction at 30 MeV/u.
     报道了30MeV/u40Ar+159Tb反应中中等质量碎片发射时间随空间大小的演化规律。
短句来源
     The energy spectra of intermediate mass fragments (IMF) emitted in 30 MeV/u 40 Ar+ 115 In reaction has been measured.
     测量了 3 0MeV/u40 Ar束流轰击115 In反应靶时出射的中等质量碎片(IMF)的能谱 .
短句来源
     Based on these selections, were obtained, for the first time, multiplicity and rapidity distributions for clusters (or in.termediate mass fragments, IMFs), and a midrapidity source wasclearly observed.
     基于这些选择方法,首次得到了结团(中等质量碎片)发射的多重性和快度分布,清楚地观测到中等快度源;
短句来源
     It is found that there are very different temperature dependences of the mean ratio of N to Z() in the different mass intervals (light particles, intermediate mass fragments and heavy residues).
     发现了不同质量区间 (轻粒子、中等质量碎片和重余核 )的产物的平均中子 质子比 ,在同位旋相关的或不相关的作用下它们有十分不同的温度依赖性 .
短句来源
  “质量碎片”译为未确定词的双语例句
     A BGO detector array used for intermediate mass fragmentmeasurements in the reaction 40Ar+159Tb at 30MeV/u
     30MeV/u~(40)Ar+~(159)Tb反应中用于中等质量碎片测量的BGO阵列探测器
短句来源
     Entrance Channel Dependence of the Correlation Function of IMFs in ~(36)Ar+~(112,124)Sn at 35MeV/u
     35MeV/u~(36)Ar+~(112,124)Sn反应中中等质量碎片关联函数的入射道依赖
短句来源
     Space-Time Evolution During Emission of Intermediate Mass Fragmentform 40Ar+159Tb Reaction at 30 MeV/u
     30MeV/u~(40)Ar+~(159)Tb反应中中等质量碎片发射的时空演化
短句来源
     Energy spectra of light charged particles and complex fragments emitted in the interaction of 46.2MeV/u ~(12)C with different target ~(58)Ni,~(64)Ni, ~(12)C,~(197)Au and ~(209)Bi have been measured by telescopes, consisting of CsI (T1) and surface barrier detector stacks. These telescopes for light charged particles and complex fragments have good energy resolution and mass identification.
     用光二极管读出的CsI(Tl)闪烁探测器和多叠层硅望远镜,测量了46.2MeV/u ~(12)C引起各种靶~(64)Ni、~(58)Ni、~(12)C、~(197)Au、~(209)Bi反应中所发射的轻粒子和中等质量碎片,这些探测器对轻粒子和中等质量碎片有很好的能量分辨和质量分辨。
短句来源
     By employing the method of double ratios of isotope yields, the nuclear temperature parameters for the reactions of 30 MeV / u 40Ar bombarding 58Ni,64Ni and 115In targets. are extracted by yields of the fragments of 3 Z 8. The dependences of the apparent temperature on some observables are investigated.
     利用同位素产额比方法,提取了30MeV/uo0Ar轰击58M,64Ni和115In的反应中中等质量碎片(IMFs:3≤Z≤8)的发射体的核温度参数,给出了“表观”温度与一些物理量的依赖关系以及对边馈(side-feeding)效应的影响进行修正后的温度参数。
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  mass fragment
Scintillators specially prepared to be used in the FASA installation as detectors of intermediate-mass fragment multiplicity were measured.
      
Intermediate-mass fragment production, the fission peak, and the 'Au-finger' show up in the calculation.
      
Intermediate mass fragment cross-sectionsσ(E, θ, 4≤Z≤11) have been measured in the reaction6Li+46Ti at 156 MeV incident energy.
      
This suggests a predominantly direct mechanism for the production of intermediate-mass fragment pairs.
      
Intermediate mass fragment emission in α induced reactions on Al and Ti at 60 and 104 MeV, respectively has been analysed using phenomenological moving source model.
      
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  mass fragments
The multiple emission of intermediate-mass fragments (IMF) is studied for collisions of p, 4He, and 12C on Au with the 4π FASA setup.
      
Multiple emission of intermediate-mass fragments (IMF) in the collisions of protons (up to 8.1 GeV), 4He (4 and 14.6 GeV), and 12C (22.4 GeV) on Au has been studied with the 4π setup FASA.
      
Several events exhibit a violent breakup into several light and medium-mass fragments.
      
Intermediate mass fragments in the reaction6Li+46Ti atE/A=26 MeV
      
The shape of the inclusive atomic number distribution of intermediate mass fragments with an atomic numberZ ≥ 2 looks different from the one measured on theO +Au system at the same bombarding energy.
      
更多          


There are abundant terpeooid compounds in terrestrial immature source rocks of our country. A sample taken from Tertiary immature source rocks is analysed by GC-MS. It is identified that more than 20 terpenoid compounds in the sample, which are rarely observed in low-mature or mature source rocks.

本文报道了在低成熟生油岩抽提物中的萜类化合物近20种。文中列出了这些化合物的特征质量碎片离子、分子量、分子式及定名。

The peripheral collision mechanisms have been systemic ally studied via the Boltzmann-Uehling-Uhlenbeck theory in the Fermi domain for ~(20)Ne+~(20)Ne collision system. The characters of energy dependence and the intermediate mass fragment production in the process of incomplete deep inelastic collision were discussed.

借助于Boltzmann-Uehling-uhlenbeck理论,对~(20)Ne+~(20)Ne碰撞系统,在不同碰撞参数下,系统地研究了费米能区的碰撞机制.结果表明:深部非弹性碰撞已由非完全深部非弹性碰撞所取代;随着轰击能量升高,非完全深部非弹性碰撞分量变小,50MeV/u时已有碎裂发生,150MeV/u时已是典型的碎裂过程.同时对中间质量碎片发射的起因做了讨论.

The intermediate energy domain ([10~100]MeV/u) is a transitional region

中能区([10~100]MeV/u)是一个由平均场相互作用向核子-核子相互作用的过渡区.在这两种不同的碰撞机制之间没有明确的分界线.它们之间的并存和逐步过渡使反应机制变得相当复杂,在实验上和理论上的研究都是十分有意义的,是当前核物理的前沿领域.弹核碎裂和中等质量碎片的发射是研究反应机制变化的重要课题.对热核的形成和衰变的研究,可以拓广人们对极端条件下核物质运动规律的认识.放射性核次级束流传输线的建立将提供用放射性核进行总反应截面、弹性碰掸和其它反应过程研究的可能性.

 
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