核反應截面 的英文怎麼說

中文拼音 [héfǎnyīngjiémiàn]
核反應截面 英文
nuclear reaction cross section
  • 核 : 核構詞成分。
  • 反 : Ⅰ名詞1 （方向相背） reverse side 2 （造反） rebellion 3 （指反革命、反動派） counterrevolutionari...
  • 應 : 應動詞1 （回答） answer; respond to; echo 2 （滿足要求） comply with; grant 3 （順應; 適應） suit...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  1. Considering the diffuseness of the n - n scattering in the forward direction results in an increased reaction cross section. and also the angular distributions calculated in the glauber theory including these two corrections are in good agreement with the experiment data. in the investigation of the halo nucleus reaction with a loosely bound structure, one has to consider the strong spatial correlations among its constituents

    考慮了低動量轉移的核子?核子兩體散射在朝前方向上的彌散，使計算得到的反應截面增大，而且我們從彈性角分佈的分析中得到考慮了有限力程修正的效應無論是在峰的位置還是角分佈的絕對值都能更好地符合實驗。
  2. ( 2000 ). the neutron irradiation is assumed to derive primarily by the reaction 13c ( a, n ) i60 with a minor contribution from the marginal burning of 22ne through the channel 22ne ( a n ) 23mg in the final, high temprature phase of each flash. and we considered the influence of the various parameters such as the initial core mass, the envelope mass, the mass - loss rate, the overlap factor and the delution factor etc., and we vary their value with the pulse number

    本文採用分叉s -過程反應通道，以~ （ 13 ） c （ ， n ） ~ （ 16 ） o 、 ~ （ 22 ） ne （ ， n ） ~ （ 25 ） mg為雙脈沖中子源，用最新的中子俘獲截面，利用gallino和busso等人給出的agb星三殼層核合成模型，考慮到核心質量、挖掘程度、重疊因子、稀釋因子及星風質量損失率隨脈沖數的變化，詳細計算和研究了各個金屬豐度情況下的3m 。
  3. Since in the few - body glauber theory the core and valence nucleons of a halo nucleus are treated separately, the obtained expressions of the reaction cross section, the nucleon removal cross section and the momentum distribution are all involved in multidimensional integrations

    由於在少體近似glauber模型中暈核被分成核芯和暈核子來處理，所以得到的暈中國原子能科學研究院博士學位論文核散射反應截面、核子逃逸截面以及動量分佈的計算公式均包含高重積分。
  4. Therefore we could carry out numerical calculations and obtain the reaction cross section, the nucleon removal cross section and the momentum distribution in the scattering of a halo nucleus with any types of density distributions. we compare the reaction cross sections calculated in the few - body glauber theory and the optical - limit glauber theory

    進一步對27p 、 28p反應截面的研究分析表明，考慮核芯2751的增大可以很好解釋實驗測量得到28p反應截面的增大，而要解釋27p反應截面的異常增大，需要同時考慮核芯2 「 si增大和具有非常彌散空間分佈的2s ， ， :態暈核子。
  5. The bisonc burnup library is replaced to facilitate the computation of the burnup process with complicated burnup chains. we have made and evaluated the new library ( hendl ) which contains 139 kinds of nuclides with 175 groups for neutron and 42 groups for gamma, 15 kinds of neutron reactions and p0 - p5 expansion. the revised code which we call bus - id is more adaptable to the computation of hybrid reactor for its fuel breeding and the transmutation of the hlw

    並且在一維輸運及燃耗計算程序bisonc的基礎上，提出用新的數據庫（ hendl ）代替原有的bisonc數據庫， hendl庫考慮了更加全面的燃耗過程和多種燃料循環方式，通過修正讀入的核截面數據庫中的參數，考慮共振自屏效應，製作並且評估了新的含有139種核素、多種反應截面、 175群中子42群光子、 p _ 0 - p _ 5展開的中子反應數據庫，開發出新的程序bus - 1d ，使得更能適應聚變?裂變混合堆的燃料增殖、高放長壽命核廢料（ hlw ）的嬗變等計算的要求。
  6. The theoretical formularies of invary amplitude, the form factor of nucleons a and differential cross sections are given about this process

    我們寫出了原子核a的形狀因子以及此類反應的散射振幅和微分截面理論公式。
  7. Due to the repulsive coulomb field, the effective impact parameter increases, and therefore the calculated reaction cross section decreases

    庫侖場的排斥效應使得核?核反應有效的碰撞參數增大，使計算的反應截面減小，同時這種修正的效應隨能量增大而減小。
  8. Both the reaction and nucleon removal cross section are derived with or without considering the meson production, and the relevant expressions are given

    討論了有和無介子產生兩種情況下的暈核散射反應截面和核子逃逸截面，給出了相應的計算公式。
  9. Through a systematic study on reaction cross sections and the angular distribution of the stable nucleus scatterings, we find that the inclusion of the n - n finite range interaction and coulomb modification in the glauber theory plays very important role in reproducing the experiment data at these energy regions

    通過穩定核，從輕核到重核中低能散射反應截面和彈性角分佈的系統計算，分析顯示在glauber理論計算中庫侖場和核子?核子兩體相互作用有限力程修正對于正確描述中低能穩定核散射有著重要作用。
  10. All cross sections of neutron induced reaction, elastic scattering angular distribution, neutron energy spectrum and double differential cross sections were calculated by using optical model and the semi - classical model of multi - step nuclear reaction processes based on the hauser - feshbach and exciton model in the energy region up to 20mev

    應用光學模型和以復合核平衡態理論（ hauser ? feshbach理論）及激子模型為基礎的核反應多步過程的半經典理論，計算了當中子入射能量低於20mev時n + ~ （ 112120 ） sn反應的所有中子入射截面、彈性散射角分佈、出射中子能譜以及出射中子雙微分截面。
  11. The hall - life measurement of long - lived radio isotopes, cross section measurement of nuclear reaction, searching for super heavy elements, cosmic study and solar neutrino detection are the main components which have been discussed

    包括放射性核素半衰期的測定、核反應截面的測量、超重元素的尋找、宇宙射線和太陽中微子性質等方面的研究工作。
  12. The cross section data were fitted and the covariance data were combined for each reaction channel by using the spline fitting program ( spc ) developed at cndc

    利用中國核數據中心的spc程序對每一個反應道的各家數據的截面進行擬合、協方差進行合併。
  13. The ddx of neutron emission is one of the most important nuclear data in nuclear design. more precise nuclear data, not only nuclear reaction data but also energy and angular distributions, are required by the development of nuclear engineering

    次級中子雙微分截面是核工程設計中重要的核數據之一，隨著對核工程設計要求的日益提高，對核數據的要求也越來越高，不僅要求有精確的核反應截面數據，還要有精確的能譜和角分佈數據。
  14. The results show that the contribution of direct capture is primary in the interested temperature range of astrophysics. toward the 12c ( n, y ) 13c reaction, our calculations are good agreement with a recent experiment at low energy. a obvious enhancement of the cross section of 12c ( n, y ) 13c first excited state has been found, and it supports that the first excited state 1 / 2 + of 13c is a neutron halo state which has been found experimentally by our department group

    對于第一個核反應，我們計算了直接俘獲過程以及兩個共振態的俘獲截面和總截面，我們的計算結果顯示，在天體感興趣的溫度范圍內，直接俘獲過程對總截面的貢獻是主要的；對于第二個反應，我們的計算結果與已有的實驗結果符合的較好，其中~ （ 12 ） c （ n ， ） ~ （ 13 ） c的第一激發態計算結果顯示出截面有明顯增大，這從理論上支持了我所關于~ （ 13 ） c第一激發態具暈結構的實驗發現，這是國際上第一次在激發態中發現暈結構。
  15. In this paper we discuss the minimum norm control problems of nuclear reactor systems governed by the monoenergetic steady - state isotropic transport equation

    摘要討論核反應堆系統散射裂變截面的最小范數控制問題。
  16. These models require, in general, the rates of and energy released in nuclear reactions occurring in astrophysical environments

    而這些模型需要巨量的數據輸入，其中主要的是天體核反應率（粒子運動速度的分佈函數與截面的卷積） 。
  17. In this dissertation, a analytic solution of neutron source of s - process in agb star has been given. with the up to date experimental data of 13c (, n ) 16o and 12c ( n, y ) 13c reaction rate, we carry out a analytic research for neutron source of s - process

    中國原子能科學研究院博士學位論文本文給出了agb星s - -過程中子源的一個解析解，並利用』 3c （ a ， n ） 『 60反應最新實驗數據和我們研究得到的』 zc （ n ，力』 3c反應的截面和核反應率，對s - -過程的中子源進行了解析研究。
  18. There are charge distribution of the nucleons a which is not a point, thus, in our invariant amplitude the form factor of nucleons a will come spontaneously, the cross section will be much imfluenced by the form factor

    由於在反應中原子核a為有大小電荷分佈的粒子而不是點粒子，從而在計算不變振幅過程中會出現形狀因子，這會對所計算的散射截面有很大的影響。
  19. We give a mathematical proof for the model - approximately independence of anc coefficient. combining a concrete nuclear reaction, we check up the model - approximately independence of anc coefficient with numeric calculation. under the el transition condition, a expressions with anc coefficient to compute the cross section of radiative capture reaction has been given in this thesis

    我們對anc系數的近似模型無關性給出了一個數學形式理論證明，並結合具體的核反應，利用數值計算驗證了anc系數的近似模型無關性；在e1躍遷情況下，我們給出了一個用anc系數計算輻射俘獲反應截面的計算公式。
  20. This article analyses the two methods of calculating nucleon - nucleus cross section, points out their characteristics and presents a new idea for combining tow methods so that we can find a new way to calculate the nucleon - nucleus cross section for whole energy range

    摘要通過對核子核反應截面的兩種計算方法進行對比和分析，指出各自的特點和計算中存在的困難，在此基礎上，提出將兩種計算方法結合起來的設想，希望能解決整個能區內核子核反應截面的計算問題。
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