粒子束流 的英文怎麼說

中文拼音 [lìzishùliú]
粒子束流 英文
particle beam
  • 粒 : Ⅰ名 （小圓珠形或小碎塊形物） small particles; grain; granule; pellet Ⅱ量詞（用於粒狀物）
  • 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...
  • 束 : Ⅰ動詞1 （捆; 系） bind; tie 2 （控制; 約束）control; restrain Ⅱ量詞（用於捆在一起的東西） bundle;...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 粒子 : grain; granule
  1. To attain the high - power, well - proportioned and steady high - energy particle beam is the base of analyzing beam loss. the factors that influence the emission performance of the filament are analyzed, and the parameters are calculated. the experiment results proved the correctness of analyses

    獲得大功率、均勻、穩定的高能粒子束是進行束流損失分析的基礎，本文分析了影響燈絲發射特性因素，對燈絲各參數進行了設計計算，實驗證明了分析的正確性。
  2. The control of beam halo - chaos becomes a critical problem in the development of high intensity accelerator. efforts to remove the halo by collimation have been largely unsuccessful since the halos almost always regenerate. the mechanisms of halos are complex, such as nonlinear resonances and chaotic behavior etc. considering this, professor fang jin - qing who works in china institute of atomic energy pointed out that the theory of chaos control can be used to control beam halos. he presented the method to control halos by using nonlinear functions, which means nonlinear function g is added to the right of ion radial self - edlctric force equation and some nonlinear function are selected to control beam halos in simulations. in paper [ 69 ], controllerg = - 0. 15sin ( rmax - am ) 2 was used and the halo intensity was decreased to 0. 1078, the halos are removed partly

    束暈?混沌的控制是新一代強流加速器研製的關鍵問題，隨著強流離子束應用前景的日趨廣闊而日益成為研究的熱點。傳統機械限束器因無法解決束暈的再生而收效甚微，因為束暈的形成有著其內在動力學機制?非線性共振以及混沌等。基於此，中國原子能科學院研究員方錦清將混沌控制的理論和方法開創性的運用於束暈?混沌的控制上，提出了控制束暈?混沌的非線性控制策略，即在粒子徑向所受束自生場力方程的右邊加上非線性控制函數g ：並選取一些非線性函數如等進行了控制的模擬研究，將束暈強度控制在0 . 1078左右，取得了初步的控制效果。
  3. The paper mainly focused on the beam transport part of asipp key laboratory of ion beam bioengineering and it ' s component elements, for example, van de graff accelerator, bending magnet, magnetic quadruple lenses, beam shutter, collimator and so on. the laboratory has performed the milestone achievement that is beam passed the hole of lo ^ m diameter in experiments. many experimental results are discussed by theories according to experiments

    本文重點討論了中科院離子束生物工程學重點實驗室單粒子束裝置的束流傳輸部分，對主要部件進行了詳細的討論，如：靜電加速器、偏轉磁鐵、磁四極透鏡、束線開關、瞄準器等，實驗中已取得束流穿過10 m小孔的標志性成果，並運用相關理論結合具體實驗分析了實驗結果。
  4. With his 1905 analysis, along with subsequent papers, einstein showed that light can behave as a stream of particles ; when it does, it knocks electrons out of the metal in the way a cue ball breaks a billiard rack

    在他1905年的分析及隨后的論文里，愛因斯坦說明了光可以像是一束粒子流；如果這樣，它會像撞球時母球撞開排好的球一樣，將電子打離金屬。
  5. Abstract : a tube reactor mixed by an axial continuous flow and four side jets as the dispersed flow is studied. the concentration distribution of the dispers ed flow was measured by means of the laser light scattering. the different flow patterns revealed the special construction of concentration distributions in relation with the velocity ratio of side flow and axial flow

    文摘:研究了圓管反應器中四束側向對撞射流與軸向流形成的混合流動.應用激光粒子散射成像測量了側向分散相在混合流中的濃度場分佈，得到了不同的濃度分布圖形隨側向流與軸向流速比關系，揭示了內在有規律的獨特的濃度分佈結構
  6. ( 3 ) chapter v. plasma characteristics of rf ion source is investigated. a zero - dimensional numerical dynamic colisional radiative atomic and molecular ( cram ) model is suggested to simulate the microphysical process. all species " population number densities in plasma are calculated in non - thermodynamics equilibrium condition, and proton content in extracted ion current are measured with 60 ? magnetic analyzer

    （ 3 ）提出了高頻離子源等離子體的零維cram模型（ collisionalradiativeatomicandmolecularmodel ） ，計算了非平衡態（ nte ）下等離子體中分子、電子、離子、基態原子、激發態原子等粒子濃度，並在zf - 200kev中子發生器上，用60磁分析器實驗測定了引出束流的質子比。
  7. The beam - test of china pin diodes at the cern sps accelerator produced satisfactory results. in addition, we studied the pin punch - through effect, and obtained the pin punch - through data with 18cm long pb wo4 crystal at the electron beam energies higher than 20gev for the first time, and these data gave valuable information to alice / phos

    在cern的sps加速器上的束流測試，得到比較滿意的結果；並對穿透效應做了實驗研究，首次獲得100gev粒子和20gev以上電子束的18厘米長pbwo4晶體探測器pin硅光管穿透效應實驗數據，為alice phos提供了有價值的參考資料。
  8. To make pic ( particl - in - cell ) simulations. to set up models of guns and magnetic field and simulate them in the vacuum and plasma, respectively. we found that plasma held back part of space charge effects and improved trajectory of electrons. but beam would oscillate and became instable as accretion of plasma density. by simulating again and again, we draw a conclusion magic could n ' t work when plasma density was more by far than beam electron density. at last a four - stage depressed collector was simulated

    建立電子槍和聚焦系統模擬模型，分別在真空和填充等離子體條件下進行模擬。發現填充等離子體能補償部分空間電荷效應，改善電子束包絡軌跡，提高電子的流通率，但是隨著等離子體密度的增大，束電子會出現振蕩不穩定性，遺憾的是通過反復多次模擬發現本文所用粒子模擬的代表性軟體magic無法用於模擬等離子體密度遠高於束電子密度的情況。
  9. In 1985, takeshi kodama et al. [ 12 ] expressed the wavefunction as the combination of the function of the single electron in a one - dimensional square well with the finite barrier to calculate the binding energies of the exciton. this form does n ' t satisfy the continuity of the function and of its derivative divided by the band - mass

    1985年， takeshikodama等人在計算激子的束縛能時把單電子的波函數（ x ， y ）取為一維有限深方形量子阱中波函數的乘積，這種取法在邊界上不滿足波函數的連續性條件及粒子流（ 1 / m ~ * ） ' （ x ， y ）的守恆條件。
  10. A solid - liquid fluidized bed has been designed and installed, which will be used in the heat exchanging and descale field. the experimental study for distributor design was carried out and the particles distribution in the tubes of the solid - liquid fluidized bed under different operating conditions was studied by using the ccd measure system. experimental results show that heterogeneous pores distributor which was arranged in the inlet chamber of the solid - liquid fluidized bed can improve the nonuniform distribution of particles in the pipe bundle under high flow rate. the nonuniform decreases by decreasing the mount of pore, but the solid holdup decreases too. the particles distribution is influenced by the position of the heterogeneous pores distributor

    實驗結果表明：在液固循環流化床進口段安裝可調節高度的變孔徑分佈板，能在較高的流速下，較好的改善固體顆粒在管束中的不均勻分佈；開孔率越小固體顆粒在管束中的分佈越均勻，但管束中粒子的平均固含率也越小；分佈板的安裝高度對顆粒的分佈有很大的影響，在實驗范圍內分佈板的安裝距離管束入口處越遠，顆粒在管束中的分佈越均勻。
  11. Because, in our experiment, the beam current and the diode voltage are not their optimized values by the results of the particle simulation, the measured output microwave power is only 230mw

    由於實驗中束流電壓和電流都偏小，輸入的電子束功率水平低，特別束流大小比在粒子模擬中得到的優化電流低得較多，所以實驗測試到的微波功率只有230mw 。
  12. There is a part of beam loss during the course as the neutralization of high - energy particles dragged from the ion source, the deflexion of charged particle on the beam stream and the scraped beam of exceeding beam waist and low density. it is necessary to analyze the beam loss and bring forward a rational project for absorbing beam stream

    將離子源引出的高能粒子進行中性化，再偏轉掉束流中的帶電粒子，將超過束腰半徑、密度較小的束流削除，在此過程中有一部分束流損失，它直接影響加熱功率的因素，因此，對束流損失進行了分析，對損失束流的吸收提出了吸收方案。
  13. The wakefield excited by an ultrashort and ultrahigh laser pulse propagating through tenuous plasma can accelerate electrons to extreme high energy. this can be used as a mechanism to design minitype electron accelerator. this thesis is devoted to studying those issues relevant to the wakefield accelerator, namely the laser wakefield accelerator ( lwfa ), laser wakefield accelerator driven by multiple pulses ( mp - lwfa ), plasma beat wave accel - erator ( pbwa ) and self - modulated laser wakefield accelerator ( sm - lwfa )

    本文的目的是：利用粒子模擬方法，研究和比較激光尾流場加速電子的四種主要方案：短脈沖激光尾流場加速（ lwfa ） 、多脈沖激光尾流場加速（ mp - lwfa ） 、拍頻束尾流場加速（ pbwa ） 、自調制激光尾流場加速（ sm - lwfa ） 。
  14. There were troubles in the continuity of the function and of its - derivative divided by band - mass on the boundary. in the theoretical calculation, the wave function is relative to the physical properties of the impurity greatly, the envelop function f ( x, y ) is expanded in terms of the one - dimensional linear harmonic oscillator function in this paper. it satisfies the continuity of the function and of its - derivative divided by the band - mass, so it improves the precision of the function and binding energy

    與以往工作不同的是，以前選用的x ， y方向電子的包絡函數f （ x ， y ）是一維有限深量子阱中波函數的乘積，在邊界上波函數的連續性和粒子流的守恆條件存在問題；而在理論計算中，波函數的選取與雜質的物理性質有密切關系，本文選取的電子的包絡函數是用一維線性諧振子的波函數展開而成的，在邊界上能夠同時滿足波函數的連續性及粒子流（ 1 / m ~ * ） f ' （ x ， y ）的守恆條件，從而使得波函數和束縛能的精確度得到了改進。
  15. Particle simulation method is used to investigate the properties of the rco - tat, including the basic physical process of the beam - wave interactions and the dependence of the microwave radiation on the structure parameters, the beam parameters, and the guiding magnetic field intensity and distribution

    利用21 / 2維電磁模相對論pic粒子模擬程序研究了rco - tat工作的基本物理過程，並研究了器件的結構參數、束流參數、導引磁場強度和分佈對束波作用和微波輸出的影響。
  16. The radiation shielding and single event upset ( seu ) of semiconductor components induced by high - energy low - flux and the thermal - mechanical effects of materials resulting from the high - energy intense - current proton irradiation are extensively studied, following conclusions are achieved : the characteristics of space radiation environment and the potential radiation effects are investigated systematically

    利用本文編制的程序，著重研究了高能質子的輻射屏蔽問題、單粒子效應中的單粒子翻轉seu 、強流質子束輻照材料引起的熱?力學效應等問題，從而為以後的相關研究提供了數值模擬手段。論文的主要進展有：系統地總結分析了空間輻射環境的構成、特點及其可能產生的輻射效應。
  17. Microwaves of 500mw, 2. 1ghz are obtained in the pic simulation. microwaves can be extracted by a cylindrical waveguide of te11 mode or a rectangular waveguide of te10 mode. the beam - to - microwave efficiency is about 14 %

    粒子模擬結果表明，在400kev 、 8 . 9ka的束流條件下，在2 . 1ghz處可以獲得大於500mw的高功率微波輸出，功率效率為14 % ，頻率、模式純凈。
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