neutron reaction 中文意思是什麼
neutron reaction
解釋
中子反應-
In calculating, we found the equilibrium processes were dominative and the pre - equilibrium processes were subordinate for reaction processes of n + 112120sn at incident neutron energies below 20 mev. since the recoil effect is taken into account, the energy for whole reaction processes is balance
在計算中我們發現，對于反應n + ~ （ 112120 ） sn當入射中子能量小於20mev時，在整個反應過程中平衡態發射佔主要部分，而預平衡態發射只佔次要部分。 -
Standard method for determining thermal neutron reaction and fluence rates by radioactivation techniques
用放射性技術測定熱中子反應和注量率的標準試驗方法 -
The principle and method to measure d - t reaction neutron fluence rate with the associated particle method is introduced
介紹了伴隨粒子法測量d - t反應中子注量的原理和方法。 -
( 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 。 -
The reflector can increase the neutron flux obviously and the main processes of the neutron yield in reflector are spallation reaction induced by energetic hadrons and ( n, 2n ) reaction. when the moderator height is equal to the distance between the upper part and the lower part of the split target, the total neutron flux of the split target will be higher by 20. 1 % than that of the integral one. secondly, the high - energy neutron escaping from the target will enter into the moderator and be slowed down
得到經水慢化器慢化后，中子通量在慢化器厚度與高度方向上的分佈；比較了水與液態氫的慢化能力以及中子在水、液態氫、液態甲烷這三種慢化器慢化后的能譜；在csns的靶站設計中，引出慢中子的導管不完全位於慢化器中子引出面的法線方向上，因此進一步計算了中子通量角分佈。 -
The nuclear fissile reaction system, which provides nuclear energy or neutrons, theoretically demands its criticality safety and neutron energy spectrum to be predicated. generally, those are realized by calculating the k - eigenvalue problem
對于提供核能源或中子源的核裂變反應系統，需從理論上給出它的臨界安全性和中子能譜，通常通過k本徵值問題的計算來實現。 -
The target studied in this paper is one of the most important components in the ads. coupling the two innovative fields in the nuclear scientific and technological circles that are accelerator and sub - critical reactor. the physical function of this part is be as the neutron source, accepting the medium or high energy proton, breeding spallation reaction, arising the self - sustaining nuclear fission and generating the power
本文所研究的靶件作為該系統最重要的關鍵部件之一，耦合核科技界的兩大創新領域-高功率質子加速器和次臨界堆，該靶件的物理作用主要是接受中、高能質子，發生散裂反應，產生中子源，引發持續鏈式反應，產生能量。 -
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。 -
Standard test method for measuring fast - neutron reaction rates by radioactivation of niobium
通過鈮的輻射活化測定快中子反應速率的標準試驗方法 -
Standard test method for measuring fast - neutron reaction rates by radioactivation of copper
用銅的輻射激活化法測定快中子反應率的標準試驗方法 -
Standard test method for measuring fast - neutron reaction rates by radioactivation of aluminum
通過鋁的輻射激活化法測量快中子反應速率的標準試驗方法 -
The evolution of fixed star having something to do with nuclear reaction, the star generally loses partial mass in its final period and finally collapses into compact star ( white dwarf, neutron star or black hole )
恆星的演化與核反應有關，演化到晚期的恆星一般要損失一部分質量，然後坍縮成緻密星（白矮星、中子星或黑洞） 。 -
All the neutron reaction data evaluation of natural hf and its six isotopes is a project assigned to zhengzhou university by the general equipment department, the general nuclear industry company of china and the chinese nuclear data center in the " ninth - five "
天然hf及其6種同位素的全套中子核反應數據評價是「九五」期間，總裝備部、中國核工業總公司和中國核數據中心下達給鄭州大學的科研項目。 -
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。 -
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。 -
In the reaction processes of light nucleus the pre - equilibrium emissions dominate the reactions mechanism, while the equilibrium state only gives lightly implement even at low neutron incident energies
在輕核反應過程中，預平衡發射在反映機制中佔主導地位，平衡態貢獻小。 -
Standard test method for measuring fast - neutron reaction rates by radioactivation of titanium
用鈦的放射性測定快速中子反應率的試驗方法 -
Standard test method for measuring fast - neutron reaction rates by radioactivation of iron
用鐵的放射性測量快中子反應速率的標準試驗方法 -
Standard test method for measuring fast - neutron reaction rates by radioactivation of nickel
通過鎳的輻射活化測定快中子反應速率的標準試驗方法 -
Theoretical calculation of a complete set of neutron reaction data for cu
銅的全套中子核反應數據的理論計算
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