高能光子 的英文怎麼說
中文拼音 [gāonéngguāngzi]
高能光子
英文
high-energy photon- 高 : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
- 能 : 能名詞(姓氏) a surname
- 光 : Ⅰ名詞1 (照耀在物體上、使人能看見物體的一種物質) light; ray 2 (景物) scenery 3 (光彩; 榮譽) ...
- 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...
- 高能 : high energy高能等離子體 energetic plasma; 高能點火 [航空] high energy ignition; 高能電池(組) hi...
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We have calculated one - and two - photon absorption cross sections of the lowest excited states of a series of molecules combined with benzene, stilben, thiophene as center attached with amine, diphenylamine, diethylamine as electron - donor and nitryl as electron - acceptor ; the effects of molecular length, n center and electron - donor on two - photon absorption cross sections have been studied and all calculations have been carried out using the density functional theory at an ab initio level. it is found that the molecular length and the one - photon absorption intensity are quite strongly c orrelated factors, and that a corresponding correlation for the two - photon absorption is decreasing. it is also found that a most crucial role for the two - photon absorption is played by the n center
我們分別以苯、二苯乙烯、噻吩為中心,氨基、二苯氨基和二乙氨基為電子給體,硝基為電子受體組合形成的分子為研究對象,在從頭計算的水平上用密度泛函理論計算了這些分子在低激發態下的單、雙光子吸收強度,重點研究了分子的長度、中心和給體的供電子能力對分子單、雙光子吸收的影響。研究結果表明,分子長度與單光子吸收強度之間有密切關系,而在雙光子吸收中這種關系較弱;中心在雙光子吸收中具有重要的作用;在中心和受體一定的情況下,增加給體的供電子能力,可提高雙光子吸收強度。The reason is that charged particles and high - energy photons interact with the rocky shielding material, producing showers of secondary radiation within the meteorite
原因在於帶電粒子與高能光子會與巖石遮蔽物質交互作用,在隕石內部引發二次輻射的簇射。The influence of field on output factor when the jaws are unfixed
放療用高能電子束光欄不固定限束方式下照射野大小對輸出量的影響The epitaxial growths of ingaas / gaas / algaas fundamental material and the fabrication of 45 - deflector are extensively studied in our work. some measuring methods are used to evaluate the growth quality of our grown structure by pl, cv, x - ray double crystal diffraction, sem etc. property analysis are provided for it
利用高能電子衍射、電化學c - v 、掃描電鏡( sem ) 、 x射線雙晶衍射儀、光熒光譜儀( pl ) 、原子力顯微鏡等多種方法對制備的器件進行了檢測,同時對實驗結果進行了必要的分析。Absorbed dose determination in photon and electron beams
光子和高能電子束吸收劑量測定方法The absorbed light energy excites chlorophyll a molecules, causing them to emit high - energy electrons that pass down an electron - transport chain, releasing energy to synthesize atp ( photophosphorylation ) and nadph
吸收的光能可激發葉綠素a產生高能電子,經電子傳遞鏈傳遞后,釋放能量合成atp (光合磷酸化)和nadph 。The generation of energetic ions during the interaction of a linear - polarized ultra - short ultra - intense laser pulse with solid targets are examined by particle simulation. three energetic ion populations are observed and the acceleration mechanisms are analyzed, respectively. the first population is pulled out from the target by the electron jet in front of the target
模擬觀察到三群高能離子的產生,並對其加速機制一一進行了分析:在靶的前部,向外噴射的高能電子在靶前形成電子云,將一部分離子拉出靶面,形成第一群高能離子;激光驅動大量高能電子向靶內輸運,這些電子牽引靶前部的離子向前加速,形成第二群高能離子:高能電子很快穿透靶,在靶后形成電子云,加速靶后表面處的離子,形成第三群高能離子。Surprisingly, the results indicate that most of the energy released by the infalling gas goes, not into an outpouring of light as is observed in many active galactic nuclei, but into jets of high - energy particles
令人吃驚的是,結果表明,與大多數活動星系核不同,下落氣體釋放的大部分能量並沒有作為光輻射傾瀉而出,卻是注入到了高能粒子噴流中。The most probable fate for this high-energy photon is to interact with a nucleus again.
這個高能光子最可能的命運是再同一個原子核相作用。During the interaction of ultra - short and ultra - intense laser with plasma, application of energetic protons generated by this interaction are proton imaging, compact particle accelerators, diagnosis the interaction of ultra - short and ultra - intense pulse laser with plasma, " fast ignitor " and proton cancer therapy etc
摘要超短超強激光與等離子體相互作用中得到的高能質子在質子成像、粒子加速、診斷超短超強激光與等離子體相互作用的物理過程、 「快點火」和治療癌癥等方面有一定的應用。In electron storage rings, the interactions by beams with residual gas produce the bremsstrahlung which has not been sufficiently understood and is the main course of the loss of the beam
由於加速器產生高能粒子,在實際應用中必須面臨輻射防護方面的問題。加速器儲存環直線節中殘余氣體產生的軔致輻射是同步輻射裝置中光束線防護的重要課題之一。Effects of oxygen pressure on microstructure of lno conductive thin film has been studied by in situ reflection high energy diffraction ( rheed ) and ex situ x - ray photoelectron spectroscopy ( xps ). in the relatively low oxygen pressure, lno film displays spotty rheed pattern
首先,通過原位高能電子衍射( rheed )及x光電子能譜( xps )研究了氧分壓對lno導電薄膜微結構的影響,並進一步提出了氧分壓對lno薄膜微結構的影響的機理。The ultra - thin er layers with the thicanesses in the range of 0. 5 ~ 3 monolayer ( ml ) are formed by electron beam evaporation on si ( 00l ) substrate at room temperature in an ultra - high vacuum system. after annealing at lower temperatures, ordered simcfores form on the surface. the trallsition of the surface reconsmiction pattem from ( 2 x l ) to ( 4 x 2 ) with the increase of er coverage up to l ml is observed by the reflective high energy electron diffraction ( rheed ) and low energy electron diffraction ( leed )
本文是關于硅( 001 )襯底與電子束淀積的鉺、鉿原子反應形成的超薄膜的界面與表面性質的研究,以及在該襯底上出現的共振光電子發射現象,包括了以下四個方面的工作: 1鉺導致的硅( 001 )襯底上的( 4 2 )再構研究利用反射高能電子衍射和低能電子衍射,在室溫淀積了0Based on laser molecular beam epitaxy, the strain behavior and the corresponding control technology in oxides heteroepitaxial system, especially in ferroelectric thin films with perovskite structure, was systematically studied by using in situ reflected - high - energy - electron - diffraction ( rheed ). some original and meaningful results were obtained. following aspects were included in this dissertation : the structure of thin films is analyzed by rheed
本論文基於激光分子束外延的基本原理,以高能電子反射為主要監測工具,對氧化物薄膜特別是鐵電氧化物薄膜異質外延過程中應變行為及其控制方法進行了系統的研究,並取得了一系列有意義的結果,主要包括以下內容:利用反射高能電子衍射( rheed )的信息對薄膜結構進行分析。Angular distribution and energy spectrum of the high - energy particles produced during the interaction of ultra - short ultra - intense ( us - ui ) laser pulse with plasma are studied in this paper
本論文研究了超短超強( us - ui )激光與等離子體相互作用中高能粒子發射的角分佈和能譜。In this paper, such three points are studied as : a ) the angular distributions of the hot electrons emission under laser irradiation at different incidence angles and at different polarization direction, the angular distribution of the hot electrons in the different energy range, and the effects of laser prepulse on the angular distributions of the hot electrons emission ; b ) the energy distribution of the hot electrons at different directions, from the metallic targets and the dielectric targets, in the different energy range of the hot electrons, and the effects of the atomic number z on the energy distribution of hot electron generated by the metallic targets ; and c ) the energetic proton emission resulting from the interaction of the us - ui laser pulse with plasma
本論文進行了三個方面的研究:第一,超熱電子角分佈的研究,包括不同激光入射角下超熱電子的角分佈;激光不同偏振態下超熱電子的角分佈;激光預脈沖對超熱電子角分佈的影響;不同能段的超熱電子的角分佈。第二,超熱電子能量分佈的研究,包括不同方位超熱電子的能量分佈,金屬與非金屬靶材的超熱電子的能量分佈,金屬原子序數z對超熱電子能量分佈的影響以及不同能段超熱電子的能量分佈。第三,研究了超短超強激光與固體靶相互作用所產四川大學博士學位論文生的高能質子發射和能譜。One of the major goal of phos is to detect and identify direct photons, represent only about 5 to 20 % of the total photon yield. the photon background mainly comes from 0 and decays and misidentified hadrons
Alice的光子譜儀phos ( photonspectrometer )用於研究高能光子, phos的作用是:一,區分光子和其他粒子;二,區分直接光子和中性介子衰變產生的光子。Clinical dosimetry - part 6 : application of high energy photon and electron radiation in percutaneous radiotherapy
臨床劑量測定.第6部分:高能光子與電子在經皮放射療法At the same time the ionized electron under the strong laser field may return to the vicinity of the nucleus and recombine to the groud state. subsequently a photon of high energy may be emitted. this is high - order harmonic generation ( hhg )
同時電離后的電子在強激光場的作用下,可能會回到核附近,與核發生相互作用從而放出高能光子,產生高次諧波( hhg )等現象。The absorbed doses are obtained with a uniform state ion chamber that is formed with liftld cavity and lif wall and designed by ourselves. the key problem, the dose to fluence conversion factor of the photon with single energy from 0. 1 mev to 12mev, has been solved by simulating with monte carlo code system egs4
用m - c方法計算了固體電離室對0 . 1mev 12mev的單能光子的單位光子注量? lif吸收劑量的轉換因子,從而解決了由高能光子吸收劑量實測值轉換成光子注量時所面臨的困難問題。分享友人