核散射截面 的英文怎麼說
中文拼音 [hésǎnshèjiémiàn]
核散射截面
英文
nuclear scattering cross-section- 核 : 核構詞成分。
- 散 : 散動詞1. (由聚集而分離) break up; disperse 2. (散布) distribute; disseminate; give out 3. (排除) dispel; let out
- 射 : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
- 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...
- 散射 : [物理學] [電學] scattering; radio scattering; scatter; dispersion
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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。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。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。Finally theoretical results and the experimental data have been compared and analyzed. the theoretical results are in good agreement with the experimental data. after evaluated, the results have been adopted in the nuclear data library of china
理論計算的總截面、彈性截面、去彈截面和彈性散射角分佈等結果和實驗數據符合很好,同時該兩組光學勢參數以及計算結果被中國核數據庫收錄。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。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。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。The study of the effect of the momentun distribution of target nucleons on the scdw calculation is performed, which shows that the larger nucleon momentum compenents affect the double differential cross sections at backward and forward angles, while smaller nucleon momentum compenents affect the cross sections near the qes angle
本文還分析了核子動量分佈對scdw模型雙微分截面計算的影響,發現大動量的核子成分的增加會導致截面計算值在大角度區域和極小角度區域的增大;小動量核子成分的減小會導致截面計算值在準彈性散射角附近的減小。And based on these findings, we further study the dependence of nuclear stopping on system size, initial n / z, sp and the medium correction of two - body cross sections. it ' s found that the effect of initial n / z ratio and isospin sp on stopping is weak, and the excitation function of stopping depends on the form of medium correction of two - body cross sections and the equation of state of nuclear matter strongly
在此基礎上我們研究了核阻止本領對系統大小、初始核n / z 、平均場中對稱勢以及兩體散射截面介質修正等的依賴情況,研究結果表明它受初始核n / z比以及對稱勢的影響很弱,而受碰撞截面介質修正的同位旋依賴效應及核態方程影響明顯。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。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。分享友人