neutron cross section 中文意思是什麼
neutron cross section
解釋
中子截面-
Zircaloy - 4 is generally used as fuel tubes in pressurized water reactors because of it " s low neutron absorption cross - section, excellent corrosion resistance, good strength and ductility
由於鋯4合金具有低的中子吸收截面，良好的抗腐蝕能力、高強度以及延展性好的特點，被廣泛用於壓水堆作為核燃料棒的包殼材料。 -
When basement rock rupture pass through the well cross section, the fracture belts can be identified with some evidences, for example, the compensate neutron increasing and the stratum density diminishing synchronization, the dual - laterolog resistance diminishing greatly and the positive difference between the deep laterolog resistance and the shallow laterolog resistance appearing. when the compensate neutron increase, the stratum density diminishing and the dual - laterolog resistance value diminishing slightly, the fracture belts can be confirmed with the intrusive vein at high frequency in well cross section
當有基巖斷裂在井削麵上通過時，若補償中子增大與地層密度變小同步發生，雙側向測井電阻率有明顯變低並有正差異出現，則可以判別為裂縫發育帶；當補償中子增大，地層密度變小及雙側向幅度變小都不太明顯時，則可以利用井剖面中頻繁出現的侵入巖脈來確定裂縫發育段。 -
Adopting single pulse neutron exposure 22ne ( a, n ) 2dmg and the updated neutron cross section, making use of the core helium burning model of the single neutron exposure theory, we calculate the s - process nucleosynthesis in massive stars at different mettalicity and compare the results with the solar s - weak component
我們採用單脈沖中子源『 zne （ a ， n ） zsmg ，採用最新發表的中子俘獲截面，用中心氦燃燒模型計算了各金屬豐度情況下15m m叼0m 。的大質量星的s過程核合成，並將所得結果與太陽的s刁分量進行比較。 -
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。 -
Mastering the output format of covariance of neutron cross section in endf / b - 6 evaluated nuclear data library, clearly understanding the meaning of each physical quantity, grasping the mathematical methods pf covariance for experimental nuclear data and evaluated nuclear data, a set of evaluation processing method was deduced from the meaning of cross sections and errors. and then a program was developed for evaluating and processing the covariance matrix of experimental data, which are output in the endf / b - 6 format
在熟悉endf / b - 6評價中子核數據庫協方差文檔的格式要求，確定各個量的物理意義，並掌握實驗和評價數據的協方差數學處理方法的基礎上，由截面數據及截面誤差的物理意義，推出了一套合適的評價處理方法，最後編寫了按endf / b - 6格式輸出的協方差數據評價處理程序，作為中國評價中子核數據庫（ cendl ）協方差文檔的數據輸出程序。 -
The double differential cross section ( ddx ) of neutron emission from 51v at 10. 26 mev neutrons was measured using normal and abnormal fast neutron tof spectrometers on hi - 13 tandem accelerator in china institute of atomic energy ( ciae ). the problem of influence from breakup neutrons of the d ( d, n ) neutron source on secondary neutron spectra was successfully solved
用中國原子能科學研究院hi - 13串列加速器上的常規和非常規快中子飛行時間譜儀，測量了10 . 26mev中子引起~ （ 51 ） v的次級中子雙微分截面，成功解決了d （ d ， n ）中子源中破裂中子對次級譜的影響。 -
Measurement and monte - carlo correction of neutron radiative capture cross section for 75as
中子輻射俘獲截面的實驗測量及蒙特卡羅修正
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