離子分子碰撞 的英文怎麼說
中文拼音 [lízifēnzipèngzhuàng]
離子分子碰撞
英文
ion molecule collision- 離 : Ⅰ動詞1 (離開) leave; part from; be away from; separate 2 (背離) go against 3 (缺少) dispens...
- 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...
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 碰 : 動詞1 (一物體突然接觸另一物體; 撞擊) touch; bump 2 (碰見; 遇到) meet; run into 3 (試探 ) tr...
- 撞 : 動詞1 (猛然碰上) collide; strike; knock; bump against; run into 2 (碰見) bump into; run into;...
- 離子 : [物理學] ion
- 碰撞 : 1 (猛然碰上) collide; run into; knock against; run foul of; crash 2 [物理學] collision; impact;...
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Elastic collision and inelastic collision are considered in oxygen molecule, nitrogen molecule by electron impart. the mail simulation results were as follow : ( 1 ) the variations of drift velocity and the average energy of electron with the e / n in o2 and n2 are obtained. the number of electrons for excitation, ionization, dissociation and dissociative ionization collision with the e / n and the energy of electron are analyzed emphatically
考慮了各種彈性和非彈性碰撞過程,在純氧氣、純氮氣中,給出了不同簡化場e n條件下的電子漂移速度和平均電子能量的變化;著重分析了激發、電離、分解及分解電離碰撞的粒子數隨e n 、電子能量的變化,同時計算了激發發射光譜的波長。The electronic temperature, intensities of all lines and continuous spectra gradually increased with the increment of laser energy, and they got to maximum at different laser energy. our results of copper and aluminum show that there are possibly different thresholds of laser energy to electronic temperature and intensities of emission spectra of laser ablated plasma. at the different environmental gas pressure, spatial emission intensity distribution is explained by the competition among " heat reservoir effect ", " confined effect " and " s hadow effect "
認為cu等離子體羽的發光機制是由電子與粒子的碰撞傳能、電子與離子的復合形成的;隨激光能量的增加, cu等離子體特徵輻射(分立譜) 、連續背景輻射(連續譜) 、電子溫度都出現最大值;結合對al的實驗結果說明:激光燒蝕金屬產生的等離子體,其特徵輻射、連續輻射、電子溫度可能都存在一定的能量閾值;背景氣壓對激光燒蝕等離子體譜線的影響,其機理可以認為是「熱庫效應」 、 「約束效應」及「陰影效應」相互競爭的綜合結果。Inelastic collisions among photoelectrons rapidly distribute their initially gained energy throughout the region of ionized gas.
光電子之間的非彈性碰撞使它們原來獲得的能量在整個電離氣體中迅速分配。In this paper, we focus on the following three topics : ( i ) density distribution of dusty plasma in the low - pressure collisionless positive column the radial density distributions of electron, ion and dust particle in the low - pressure collisionless positive column are investigated with a fluid theory and a self - consistent dust - charging model
本文著重以下三個方面的研究: ( )低氣壓無碰撞輝光放電正柱區塵埃等離子體密度徑向分佈本文採用流體模型和自洽的塵埃充電模型,研究了低氣壓無碰撞輝光放電正柱區的電子密度、離子密度和塵埃粒子密度的徑向分佈。Based on the revers kinetic intermediate energy heavy ion collision in which much more intermediate mass fragments are emitted towards forward angles, a sensitive observable on isospin effects in heavy ion collisions is investigated by means of using isospin dependent quantum molecular dynamics ( iqmd )
摘要在重離子碰撞過程中,基於重質量的彈核轟擊輕質量靶核有大量中等質量碎片向前發射的逆運動學效應,利用同位旋相關的量子分子動力學觀察和研究了重離子碰撞過程中同位旋效應的靈敏性。In the present works, a self - consistent model describing the dynamics of radio - frequency ( rf ) sheath was established. the effects of collisions on the rf sheath dynamics, distributions of ion energy and angle incident on the substrate and the etching profiles were investigated numerically
本文建立了一套自洽的碰撞射頻等離子體鞘層理論模型,系統地研究了碰撞效應對等離子體鞘層的物理特性、離子入射到基板上的能量分佈和角度分佈以及刻蝕剖面的影響。Based on the potential resonance in heavy - ion collisions, the anomalous phenomenon of the backward - angle oscillatory arising in the angular distribution for 16o + 12c elastic scattering have been studied within the framework of the optical model using a deep optical potential
摘要基於重離子碰撞中勢共振的考慮,在光學模型的框架下,使用深光學勢研究了16o + 12c彈性散射角分佈后角振蕩上升的反常現象。The first chapter is introduction. a lot of possible signatures of qgp formation predicted by theorists are introduced in this part. the ultra - high energy heavy - ion experiments are the main ways to study qgp phase transition at the controlled condition
論文的第一章為引言部分,主要介紹了qgd相變與夸克?膠子等離子體的特性,高能核?核碰撞的時空圖像和相變條件、以及理論上預言的qgp存在的一些可能的信號。( 2 ) the process of dc discharge in o2 / n2 mixtures with the different n2 concentration has been simulated. the dependences of number of collisions with the e / n and the energy of electron are given. it is analyzed stressfully that the process of electron - molecule collision with the e / n and the energy of electron in air at atmospheric pressure
對于o _ 2 n _ 2混合氣體,模擬了不同配比條件下直流放電過程,得出了發生碰撞的粒子數隨e n 、電子能量的變化;著重分析了空氣中激發、電離、分解及分解電離碰撞的粒子數隨e n的變化,給出了電子漂移速度和平均電子能量隨e n的變化。The first aspect is about the distribution function for fermions in quasi - equilibrium qgp which is perturbed by the fluctuation of the color field. neglecting the affect of the spin and the collision between the particles in qgp, the distribution function for fermions in quasi - equilibrium qgp has been obtained. further more, the physical " basses that decide the departure factor are analyzed
第一,從qgp動力論出發,忽略自旋和碰撞效應,得到qgp在色場漲落擾動下偏離平衡態而處于近平衡時的分佈函數的二級近似以及偏離因子的物理表示,進而分析了決定偏離因子的物理因素。The results of simulations are : i ) energies of the incident ions to the target are determined mainly by the voltage across the cathode sheath, with a majority of ions " energy vary around the sheath voltage ; ions nearly normally bombard the target ; ions mainly locate above the sputtering holes because of the influence of the magnetic field, and the incident ions mainly come from the region ; the ions undergo several collisions during transportation, but that do n ' t matter much
主要模擬結果有: ? )入射離子到達靶面時的能量主要受到了射頻輝光放電中陰極殼層西北工業大學碩士學位論文李陽平電壓的影響,大部分離子的入射能量在陰極殼層電壓值附近,離子濺射時接近於垂直入射;射頻輝光放電受到陰極磁場的影響,等離子體中的離子主要集中在靶面濺射坑的上方,且入射離子主要來自這個區域;入射離子在輸運過程中和背景氣體分子有少量的碰撞,但影響不太大。It is indicated that the radius parameter is insensitive to the spatial shape of the edge zone of source and is mainly affected by the size of the central zone of pions emitted in high energy heavy - ion collisions
結果表明,半徑參數主要取決于高能重離子碰撞中多數介子產生的中間區域;對產生介子的邊緣區域的空間分佈形狀不敏感。This show us a very useful signal in studying the systematic property in the early stage of the evolutive colliding system, that ' s, a non - zero flow component of those particles observed by experiment could be interpreted as a signal for partonic flow
因此在碰撞早期產生的重子數輸運是高能重離子碰撞中的一個重要的物理量,它影響著初態部分子的平衡,粒子的產生,系統的熱力學或化學平衡以及集體膨脹等過程。Based on the theory of glow discharge, the angle distribution of electron and the recombination process are simulated by adopting monte carlo method. the doping process of n - type diamond film is investigated by this method for the first time. the results indicate : 1 ) the scattering angle of electrons near the substrate is mainly lange - angle, which is helpful to grow diamond film over a large area when glow discharge is kept ; 2 ) after considering the recombination process, the number of particles distribution is provided
主要結果如下: ( 1 )研究了電子在雪崩碰撞和分解電離后的角分佈情況,結果表明基片附近電子的散射以大角散射為主,在維持輝光放電的條件下,較高的偏壓和工作氣壓對金剛石的橫向連續成膜是有益的; ( 2 )考慮了低溫合成金剛石薄膜過程中電子與各種碎片粒子的復合過程,給出了不同的復合系數情況下的粒子數分佈,結果顯示各種碎片粒子的分佈隨復合系數的變化會出現粒子數分佈的漲落現象。The isospin effect and k production in intermediate and high energy heavy ion collisions ( hics ) are hot topics in the nuclear physics. based on the isospin - dependent quantum molecular dyanmics ( iqmd ) model and self - consistent relativistic boltzmann - uehling - uhlenbeck ( rbuu ) model, we have studied them and obtained some interesting results. as for the study of isospin in intermediate energy hics, we ' ve investigated how both stength ( q ) and density dependence of symmetry potential ( sp ) affect many measurable observables, such as the yield, phase - space, and isospin distributions of fragments, as well as the correlations between intermediate - mass - fragment ( imf ) multiplicity n and charged - particle multiplicity n, light - charged - particle ( lcp ) multiplicity n, and neutron multiplicity n,
在中能重離子碰撞的同位旋研究方面,分別研究了對稱勢的強度( c _ s )和其密度依賴形式對中能重離子核反應各類碎片產物產額、相空間、及其同位旋的分佈,中等質量碎片多重數( n _ ( imf ) )與帶電粒子多重數( n _ c ) 、輕帶電粒子多重數( n _ k ) 、中子多重數( n _ n )的關聯等多種實驗觀測量的影響,以獲取對稱勢中該兩方面的信息,尤其著重於研究如何分別獲取有關該兩方面的信息的途徑。4. we attempted to carry out the experiment of co a3 ( v = 18 ) / d1 ( v = 10 ) collision with he in a static cell using oodr - mpi technique for the preparation of doing experiment in a molecular beam machine. in the experiment of 2 + 1 ' + 1 " two - color rempi, we conformed the accidental predissociation of co ( e1, v = l ) state, and studied the effect of the accidental predissociation of co ( e1, v = 1 ) state for different rotational states
4 .為了在分子束實驗條件下進行實驗,用光學一光學雙共振多光子電離光譜( oonr一mpi )的方法,在靜態池條件下,對較長壽命的eo ( a 』 n , v = 18 ) / ( d 』 , v = 10 )單重態一三重態之間的碰撞傳能實驗進行了嘗試。The transverse expansion origins in early stages, but mainly develops and finishes during the late stage of the colliding. for those heavier particles, such as j /, e, and etc., becuase of their smaller hadronic cross section, they rarely participate the final state hadronic re - scattering, and depart the system much earlier. their transverse expansion maybe is the result of the cumulative collective effect during the early partonic stage
這種橫向擴張起源於碰撞的初始階段,但是主要是在碰撞的後期完成,而一些重的粒子,如j 、和,由於具有較小的強子散射截面,幾乎不參與末態強子的再散射,較早的離開碰撞系統,它們所表現出來的橫向擴張運動可能是來自碰撞初期部分子階段的部分子的集體效應的累積結果。Based on the theoretical analysis and experimental researches, it is presented that the wider spectra are resulted from the many fluorophores with large numbers of vibrational energy levels on the ground level in the blood cells, and the reduction of the spectral intensity is due to the reabsorption of the blood cells and the energy transfer of the collisions between the fluorophore and another one or other macromolecule. on the other hand, when the concentration of the blood cells is increased, the reabsorption of the blood cells, the secondary fluorescence due to the reabsorption and the influence of the concentration on the energy levels of fluorophores are all the factors of the red - shifted spectral peaks
在進行理論分析和研究的基礎上,提出了因血細胞中存在多種熒光團,且這些熒光團的電子能級上又存在大量的不同的振動能級,從而導致被激發的熒光團發出較寬的熒光光譜;血細胞濃度的增大,熒光團以及其他大分子之間的距離變小,造成它們之間因碰撞的能量轉移概率加大,因而易產生熒光猝滅,結果導致熒光強度的變小;血細胞溶液中重吸收所導致的熒光猝滅和二次熒光發射,以及血細胞濃度的變化對其中熒光團能級系統的影響都是導致熒光峰值波長「紅移」的原因;進而研究了led光誘導血細胞產生熒光光譜的機理。Among the heavy ion experiments. the minimum value is observed in c - cu collision. but the low multiplicity of this experiment and the vague intermittency in nuclear - nuclear collisions result in large error when the analysed rank of a, is high
雖然重離子碰撞c - cu中看到了_ q出現極小值的現象,但核核碰撞中間歇不明顯,該實驗中多重數較低,這些都導致對_ q的分析階數較高時,誤差已很大,結果的有效性需檢驗。Second, monte - carlo method is used to simulate the transports of ions penetrating through the rf sheath in terms of the above sheath dynamic model. here, both elastic collisions and charge - exchange collisions between ions and neutral particles are considered. the effects of collisions on the distributions of ions energy and angle incident on the substrate were calculated
其次,利用已建立的碰撞等離子體鞘層模型和monte - carlo方法模擬了離子在射頻鞘層電場中的運動過程,不僅考慮了離子同中性粒子的電荷交換碰撞,還考慮了它們之間的彈性碰撞過程,研究了碰撞效應對入射到基板上的離子能量分佈和角度分佈的影響。分享友人