electron beams 中文意思是什麼

electron beams 解釋
陰極線
  • electron : n. 【物理學】電子。 the electron beam 電子束。 the electron theory 電子（學）說。
  • beams : 比姆斯
  1. The dust charging associated with the electron beams including the secondary emission of dust can dominate the dust surface potential in the close cathode region. in this case, dust of the same size can levitate at two different positions in the cathode

    另外還發現：在考慮極板有強電子束發射和塵埃粒子本身的二次電子發射時，同一大小的塵埃粒子能夠懸浮在鞘層中兩個不同的位置。
  2. In chapter 6 a digital interception system is designed and its operating principle is introduced. plenty of experimental results are provided here. in chapter 7 a mathematic model of electron beams in crt of computer vdu is given and entropy preservation performance of tempest transceiving system is discussed, a soft - tempest measure is suggested accordingly

    其中第六章設計了數字偵收系統，介紹了其工作原理，並提供了豐富的實驗結果；第七章給出了計算機陰極射線管顯示器電子束的數學模型，據此討論了tempest通信系統的保熵性，接著分析了數字偵收系統的抗噪聲性能。
  3. Absorbed dose determination in photon and electron beams

    光子和高能電子束吸收劑量測定方法
  4. Specification of estimation of eye lens dose from x rays and electron beams

    X射線和電子束所致眼晶體劑量估算規范
  5. The feed - back provided by the reflected electron beams reduce the start - up current and the start - up time in a vircator, while the existence of klystron cavity improves the extracting efficiency, hence the radial reflex klystron oscillator with virtual cathode combines the advantages of both devices, becomes a compact, efficient set

    利用虛陰極反射電子束對調制腔的正反饋，可以減小起振電流和起振時間，而且提高了微波產生效率。它是一種結構簡單，緊湊，不需要引導磁場的器件。
  6. Design considerations of the high power s - band rka are described, by using electron beams of voltage - 600kv, current - 5000a, and the numerical simulations for three kinds of the rka output structures are given. the three kinds of the output strctures are single - gap standing - wave ( sw ) cavity, traveling - wave ( tw ) output structure, and two output structures ( single - gap + traveling - wave structure ). under conditions of using two output structures, the results show that the instantaneous peak power obtained from sw output cavity and tw output structure is respectively 2. 4gw and 2. 1gw, the both power average of 0. 96gw and 0. 93gw, i. e. the s - band rka of two output structures generates peak output power of 1. 89gw at a frequency of 2. 85ghz

    從數值模擬中得到雙輸出結構的微波功率輸出結果為:駐波輸出的瞬時功率為2 . 4gw （周期平均為0 . 96gw ） ;行波輸出結構輸出瞬時功率為2 . 1gw （周期平均0 . 93gw ） ，就獲得了頻率為2 . 85ghz的微波輸出。本文簡要的描述了電磁軟體（ magic ）對速調管輸出腔體進行了模擬，並對相應的模擬方法進行了評述。
  7. 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。
  8. For example, one of us ( umstadter ) has demonstrated electron beams of a few million electron - volts whose “ brightness ” ( in essence, the concentration of particles in the beam ) exceeds that of beams made by conventional accelerators, mainly because the charges bunched in one pulse of the beam have less time to blow it apart by its own electrostatic forces

    例如烏姆斯塔特（本文作者之一）便曾展示過，具有數百萬電子伏特的電子線束之亮度（基本上，即是線束內的粒子濃度）超過了傳統加速器產生的線束，因為脈沖內束在一起的電荷根本沒時間以自身的靜電把別人擠開。
  9. The agreement is also within the uncertainty when being compared with the alanine and cta film dosimeters made by jaeri. in addition, this dosimetry system is used to measure field and depth - dose distribution curves for 12mev electron beams, which shows it ' s suitability and practicability for electron beam irradiation

    另外，還利用該劑量體系對12mev電子束輻照場的分佈及深度劑量分佈進行了實際測量，得到了與cta和fwt60等薄膜劑量計相一致的結果，這也進一步說明該劑量體系在電子束輻照上的適用性和實用性。
  10. Crossed electron beams

    交叉電子注
  11. Space - charge wave physics relevant to modulation of intense relativistic electron beams

    強流相對論電子束群聚的空間電荷波理論分析
  12. ( iii ) dust charging and levitation in cathode sheath of glow discharges with energetic electron beam. the dust charging and levitation in a collisionless cathode sheath of dc glow discharges with energetic electron beams released from a plane cathode are investigated with a self - consistent theoretic model

    （ ）塵埃粒子在極板有高能電子束發射輝光放電鞘層中的充電與懸浮採用自洽的鞘層模型和塵埃粒子充電模型，我們研究了在極板有高能電子束發射輝光放電鞘層中塵埃粒子的充電與懸浮。
  13. Simulation on the a - magnet of 30mev linac is also done with the gpt code ; the movement picture of electron beam in a - magnet is presented ; the change of beams emittance, the compression effect of bunch length, change of energy dissipation and achromatic angle of true a - magnet are explored. this chapter mainly introduces some characteristics and properties of the main accelerate stage in 30mev linac system

    利用gpt程序對30mevlinac中的-磁鐵進行了動力學模擬，給出了電子束在-磁鐵中的運動圖像，研究了注入器輸出束流經過-磁鐵后束流發射度的變化、束團長度的壓縮效應、能散度的變化以及-磁鐵實際的消色散入射角。
  14. It will also make a contribution to unification and dissemination of the quantity values of the absorbed dose for electron beams in cnnc ( china national nuclear corporation )

    本課題屬于國防科工委放射性計量一級站「九?五」計劃項目，對于核工業系統電子束吸收劑量的量值統一和量值傳遞具有重要意義。
  15. A virtual cathode oscillator with an axially extracted te10 or te11 mode has been investigated using the pic code. it can emit microwaves axially through an antenna without mode converter or transition waveguide, making the system more simple and compact. the efficiency of this device can be enhanced by employing premodulation cavity, resonant cavity, feedback mechanism, and virtual cathode formed by two electron beams

    本文利用物理分析和粒子模擬的方法研究了軸向提取te10 / te11模虛陰極振蕩器，結果表明通過引入預調制腔、諧振腔、反饋端面、雙電子束陰極等結構，可以實現結構相對緊湊、束波轉換效率較高的軸向提取虛陰極振蕩器。
  16. This thesis is devoted to studying those issues relevant to the interaction of ultra - short ultra - intense laser pulses with overdense plasmas, including the generation and transport of relativistic electron beams, the generation of quasistatic magnetic field, the energetic ions production, and the influence of preplasma on electrons acceleration

    本文的研究目的是：利用粒子模擬方法，對超短超強激光脈沖與高密度等離子體相互作用中高能強電流的產生和輸運、準靜態磁場產生、高能離子產生等物理過程進行研究。
  17. Analysis of intense relativistic electron beams transportation in low magnetic field

    強流相對論環形電子束在低磁場中傳輸分析
  18. The electromagnetism field of the accelerator cavity is analyzed, and the movement of electron in the cavity also analyzed. the vibration rule of transverse emittance is acquired when the electron beams move in the accelerator cavity, and the result complies with the numeric simulation

    分析了rf - gun加速腔中的電磁場結構和電子運動規律，得到電子束在加速腔中運動時束流橫向發射度是振蕩變化的，與數值模擬結果吻合。
  19. Conversion method of absorbed doses in different materials irradiated by x, rays and electron beams

    X射線和電子束輻照不同材料吸收劑量的換算方法
  20. Clinical dosimetry ; therapeutical application of x - ray, gamma - ray and electron beams

    臨床劑量學射線射線和電子束的治療應用
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