散射中子 的英文怎麼說
中文拼音 [sǎnshèzhōngzi]
散射中子
英文
scattered neutrons- 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) ...
- 子 : 子Ⅰ名詞1 (兒子) son 2 (人的通稱) person 3 (古代特指有學問的男人) ancient title of respect f...
- 散射 : [物理學] [電學] scattering; radio scattering; scatter; dispersion
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There is a good chance that this outward diffusion of neutrinos and antineutrinos plays a crucial role in the supernova explosion.
中微子和反中微子的這種向外的散射很可能在超新星爆發中起著關鍵的作用。The secondary backscattered electron current is used to modulate the intensity of an electron beam in a cathode ray tube(crt).
二次電子或背散射電子的電流被用來調制陰極射線管(CRT)中電子束的強度。Much of visible light reaching us from the solar corona also seems to be due to scattering by electrons.
從日冕中射來的相當大一部分可見光看來也是由電子散射產生的。Scattering of sh - wave by a radial collinear crack at the edge of arbitrary - shape - cavity in isotropy media is studied. the solution of dsif at crack tips is obtained
研究了各向同性介質中任意形孔邊徑向裂紋對sh波的散射,求解了裂紋尖端的動應力強度因子。By deep inelastic scattering of leptons on nucleus and nuclear drell - yan processes one can learn the parton densities in nucleus
通過輕子與原子核的深度非彈性散射、核drell - yan過程,可以了解原子核中的夸克?部分子分佈的信息。The monte carlo simulation offers a systematic and efficient way to study this unknown realm by qualitative comparisons to the experiments
Pomeron是多重散射中交換的一種唯象粒子,在粒子產生過程中用兩根色弦來表示。By the scattering factor of henke, we calculated the peak reflectence of all possible material pairs from the recurve method of thin film optics. from the calculating results, the best material pairs of the five wavelengths are determined
從薄膜光學理論的遞推法出發,以henke的散射因子為依據,計算了候選材料的峰值反射率,從中得到了軟x射線短波段的五個波長處的最佳材料配對。According to the demand of the concept design of china spallation neutron source ( csns ), the target station, i. e. the target, the reflector and the moderator have been simulated and optimized using monte carlo simulation software, nmtc / jam and mcnp4a, firstly. the neutron flux escaping from the target and the moderator and the heat deposition in the target, the reflector and the moderator are calculated. these results provided essential data as a basis of the spallation neutron source design
本論文結合當前中國散裂中子源( chinaspallationneutronsource , csns )工程概念設計的迫切需要,選擇國際上廣泛使用的基於蒙特?卡羅方法,用於模擬粒子輸運過程的程序mcnp4a和nmtc jam作為研究工具,首次對csns靶站進行了全面的模擬與優化,內容包括靶、反射體與慢化器系統的中子通量分佈以及熱量沉積,同時計算了靶的溫度場與應力場分佈。The recoil angle of electron in compton scattering is incorrect in some text books, and the right sketching of compton scattering is presented
摘要指出了某些教材中康普頓散射示意圖畫法的不妥之處,並嚴格推導了康普頓散射中反沖電子的散射角,給出了正確的康普頓散射示意圖。A monte carlo algorithm was presented to model the relation between the scattering phenomenon, depolarization changes and sea water depth, it is discovered that the radius of scattering point and the degree of depolarization increase with increasing of the sea water depth. at last, a optical engineering software ( lighttools ) is introduced to simulate optical scattering in the deep sea water, and studys the corelation between scattering and relative refractive index, particle density and particle size in the sea water. the experiment results show that the intensity of scattering will increase evidently with the increasing of particle size, particle density and relative refractive index. the methods and results in the article provide the basic theory and experiment validation for improving performance of communication, detection and imaging under sea water
本文以球形粒子的mie散射理論、 stokes矢量法以及mueller矩陣來研究海水的散射特性和散射中的退偏振度變化;通過montecarlo方法模擬藍綠激光在海水傳輸過程中的散射現象以及散射中的退偏度變化與海水深度的關系,發現隨著海水深度的增加,散射后的光斑半徑、退偏振度將逐漸增大。最後通過光學工程軟體( lighttools )對海水中的散射進行模擬實驗,研究散射與海水中粒子密度、粒子大小和相對折射率的關系。實驗結果表明,隨著粒子半徑、粒子密度和相對折射率的增加,散射的強度將顯著增加。The secondary backscattered electron current is used to modulate the intensity of an electron beam in a cathode ray tube ( crt )
二次電子或背散射電子的電流被用來調制陰極射線管( crt )中電子束的強度。Mosquito - repellent incense smoke is selected as scattering particles in the measurement by means of theoretic analysis and making contrast experiments
在測量中,經過理論分析與對比試驗,選擇了蚊香煙霧作為散射粒子。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。On the other hand, some noncoherent measurement methods can be applied to image the tissue at several centimeters depth, while the image resolution is not satisfied. therefore, focused ultrasound - modulated optical tomography has been developed and shows a promising prospect for imaging tissue in depth with better resolution
聚焦超聲調制的光學層析方法被認為是很有應用前景的一個光層析成像領域,即用聚焦超聲標記散射光子,並從這些光子中提取該處介質的信息。Facility scattered neutrons
條件散射中子In the engineering simulation experiment, the distance between the neutron source and the detector is close, the scattered neutron cannot directly measured through shielding from neutron source with shield cone
在工程模擬實驗中,中子源與探測器相距較近,不能用陰影屏蔽錐法直接測量散射中子本底(即非期望中子) 。In the experiment, the scattered background neutrons is studied with the shielding method and the scattered background neutrons in the experiment hall is eliminated from signal neutrons by the method of combining the shielding experiment ' s results with the mcnp / 4a code calculation
需用mcnp 4a程序計算實驗大廳的散射中子本底分佈。採用專門設計的屏蔽法研究散射中子本底。並和mcnp 4a程序計算相結合的方法扣除了在特定實驗條件下實驗大廳的散射中子本底。Under wide - aperture, the anisotropy of scattering centers become evidence, in this paper, we propose a new algorithm based on sub - aperture and filtered back - projection algorithm to estimate the anisotropy of scattering centers in wide - aperture imaging
然後針對散射中心方向特性提取問題,結合子孔徑思想和濾波逆投影演算法提齣子孔徑濾波逆投影演算法,模擬結果驗證了演算法的有效性。Chapter 3. the bose - einstein distribution and the thermodynamics equilibrium condition which are obeyed by the photons during spontaneous raman scattering in the fiber are developed. the occupation probability ( s, as ) of stokes photon and anti - stokes photons and temperature ( t ) can be regarded as the function of the position along the fiber axis
第三章,研究了自發raman散射中光子所遵從的bose - einstein分佈及其平衡條件,給出了光纖中兩種光子布居概率_ s 、 _ ( as )和溫度t看作位置z的函數的關系。Second, the reaction probability shows resonance - like oscillatory structures in its dependence on collision energy. thirdly, the probability goes up obviously with the rising of the rotational quantum number j
第三,轉動svgr模型在h cd4 ? hd cd3反應散射中的應用中文摘要激發態時體系的反應幾率隨轉動量子數j的增大有很大幅度的提高。分享友人