陰極發射體 的英文怎麼說
中文拼音 [yīnjífāshètǐ]
陰極發射體
英文
cathode emitter-
Lab6, as one kind of better material, is so perfect with it ’ s excellent physical and chemic characteristic
與之相比,六硼化鑭具有優異的物理和化學特性,使之成為場發射陰極發射體的理想材料。Since the discovery of cnt ’ s and find that cnts have small diameter and high length diameter ratio and can be look as one - demission material, it can be used as emission emitter of fed. especially, the aligned cnts array can be seen innumerable single cathodes which are lined regularly and form array. so growing aligned cnts array in selective area is the key technology to product cnts fed, which is also the necessary condition of cnts micro - electronics device
自碳納米管發現以來,由於碳納米管的直徑很小、長徑比大,故可視為準一維納米材料,可作為場發射平板顯示的尖端發射體,特別是定向碳納米管陣列可看成是無數根單尖陰極規則的排列起來形成陣列式,是理想的場發射平板顯示器的尖端發射體。At last, the results about the two simulations are similar, which validate the applicability
結果還發現,兩套軟體的模擬結果非常吻合,從而驗證了ebs軟體對于場發射陰極模擬的適用性。In addition, the structure of field emission triode and double - gated field emission cathodes are also simulated by another software ( ebs )
其次,採用本實驗室的新型軟體ebs對三極體和雙門聚焦結構的尖錐場發射陰極的發射情況進行了模擬。With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics. the software included field section, grid point numbering, and the calculation of electric currents, transconductance and cathode capacitance, moreover, it can simulate the properties of vacuum microeletronic with variant structures and sizes. the relationship was studied and simulated among electic properties and device structures, sizes and cathode materials etc. the optimized design of vacuum microtiode was proposed
本文在深入研究真空微電子器件場致發射理論的基礎上,根據圓錐形、楔形陰極真空微電子三極體的不同特點,分別建立了物理和數學模型,在考慮空間電荷密度影響的前提下,以有限元法為基礎採用迭代的方法計算出真空微電子三極體內的電勢分佈情況,繪制出了等勢線、電子軌跡線,並得到了器件電學性能隨幾何參數的變化情況。Various types of techniques have been applied to study the main principle problem. these techniques involve petrography, x - ray diffraction ( xrd ), scanning electron microscope ( sem ), carbon isotope, cathodoluminescence ( cl ), fluid inclusion, and epoxy - resin casts
論文中所用的分析原理與技術方法包括:層序地層學分析、 x -衍射、掃描電鏡、穩定同位素、陰極發光、流體包裹體與染色鑄體薄片等。Because that complex phenomena in pegs involve kinetic effects of plasma and cathode emitted electrons, and evolution of electromagnetic fields, particle - in - cell ( pic ) code is chosen as study tool, and a two and half dimensional cylindrical fully electromagnetic pic code cylinder2 - 1 / 2d, which is suitable for simulating the operation of the pegs, has been established
考慮到peos物理現象涉及到等離子體和陰極發射電子的動力學行為以及空間電磁場的復雜變化,我們採用粒子模擬方法作為研究工具,研製了適用於peos物理問題模擬研究的二維柱坐標全電磁粒子模擬程序cylinder2 - 1 2d 。For instance, the phosphor on a crt screen needs to be constantly reactivated by an electron beam in order to remain illuminated
例如,陰極射線管熒光屏上的磷光體為了保持它激發光狀態,需要用電子束不斷地再激勵。In simulations, all important phenomena, such as non - neutral sheath widening near cathode, cathode electron emitting, current channel migrating to the load side of the plasma, ion accelerating toward cathode and magnetic insulation of cathode emitting electrons etc, have been observed and depict the internal physics of this device. also presented is the influence of cathode emitted electrons on phenomena in the conduction processes of pegs. the simulation results show, without cathode emitted electrons, rapid magnetic field penetration takes place only in region near the cathode, with cathode emitted electrons, magnetic field penetration takes place in all plasma region
診斷發現了陰極表面非中性鞘層的形成、陰極電子發射、電流通道的漂移、等離子體離子加速以及陰極電子磁隔離等物理現象,揭示了這一斷路器件的物理機制;分析了陰極電子對peos導通過程中的物理現象的影響,模擬結果顯示:忽略陰極電子作用,磁場滲透現象主要出現在陰極表面區域,考慮陰極電子作用,磁場滲透現象出現在整個等離子體區域。On the basis of the study of high resolution sequence stratigraphy, this paper discusses the reservoir petrology ' s diagenesis and secondary pore of the chang 4 + 52 ~ chang 62 pay zones in detail by using the methods of analysis of mercury injection, cast section, popular section, scanning electron microscope, x - ray diffraction and etc. the reservoir rock is mainly composed of feldspar fine sandstone, which is characterized by low compositional maturity and relatively high textural mature
本文在高解析度層序地層學研究的基礎上,通過15口井的常規物性、壓汞、鑄體分析、薄片鑒定、掃描電鏡、 x光衍射、陰極發光、粒度分析等多項測試手段,對坪北油田延長組長4 + 52長62儲層巖石學、成巖作用及次生孔隙進行了詳細研究。Mgf plays the role of segregation. the third method is to enhance the oel by means of making complex with n - vi compounds. el - vi compounds are very stable and possessing higher electron mobility than organic materials
但電子不是在真空中,而是在固體中加速的,我們稱它為固態陰極射線發光或類陰極射線發光,它的激發態是成對的電子及空穴。With the development of the display technology, the crt display technology, for the reason of the kinescope ’ s huge bulk, bigger weight and hard to be bigger size, is losing the market order
隨著新的顯示技術的發展,普通陰極射線管顯示技術因其體積太大、太重、顯示尺寸不容易作大的原因,已經越用越不能夠適應現代消費的需要。However, the most commonly used x - ray sources didn " t change much no matter in structure or theory, still using thermionic cathodes as electron sources. such conventional x - ray tubes have some defaults, such as big volume, low frequency response, demanding for supply to cathode that was also brittle
目前使用的x光源的基本特點是採用熱電子發射形式即採用熱燈絲作為電子發射源,在高壓加速下轟擊陽極產生x射線,這樣的光源體積較大,需要加熱陰極的電源,且對頻率響應慢。In the paper, we put forward the combination of micro electronic technology, mems technology and vacuum micro electronic technology to develop a micro electronic pressure sensor with overload protection. the pressure sensor consists. of elastic anode membrane, isolation layer, vacuum micro cavity and field emission catelectrode tip array with overload protection. such pressure sensor has many advantages, such as high temperature stability, radiation resistance, fast response, high sensitivity, small volume, simple secondary instruments and bulk production
本文在重慶市科技「十五」項目的資助下,提出利用微電子技術、 mems技術和真空電子技術相結合的方法,研究一種帶過保護功能的真空微電子壓力傳感器,該壓力傳感器由帶過保護的場致發射陰極錐尖陣列、彈性陽極膜、絕緣層、真空微腔所構成,具有溫度穩定性好、抗輻射、快響應、高靈敏、體積小、二次儀表簡單、可批量生產等優點,具有廣泛的應用市場。At present, the material of emitting cathode is mostly present with big escaping powers low reliability 1ow uniformity and emission capability
摘要目前,陰極發射體材料多存在逸出功大,可靠性及均勻性低,發射性能低、不能自動調節活性物質更替的速度等方面的問題。To find a proper and convenient way in electron emitter research, in the paper, we have discussed the essential and possibility of setting up a new pld ( pulsed laser deposition ) device which connects with aes ( auger energy spectra ), and built such device in order to complete cathode deposition and analysis without exposing to the atmosphere and carried out cathode in - situ preparation and analysis electron emission phenomenon is a physical process taken place in surface of electron emitter
為了解決電子發射體(陰極)研究方法中存在的問題,並尋求一種適當的、方便的陰極研究實驗方法,本論文論證了建立與aes相連的pld裝置的必要性和可行性,並實際建立了這一裝置,實現了陰極的原位沉積、原位分析。電子發射現象是在電子發射體表面發生的物理過程,發射表面是由活性元素構成的動態平衡系統,這一系統直接決定電子發射性能。表面分析手段對陰極研究是必不可少的。Lab6, as one kind of better material, is so perfect that it is important to research its chemical etching in the arts and crafts to be used in the preparation of emitting cathode, we simply state the chemical etching technical research in material of lab6 and have gainded graphics surface of lab6
而對六硼化鑭的化學腐蝕在以其為陰極的陰極發射體制備工藝中起著至關重要的作用,本文簡述了對材料的化學腐蝕工藝的初步研究,並得到了圖形化的六硼化鑭表面。This paper studies cretaceous volcanics distribution, rock types, tectonic setting and reservoir characteristics in the western depression of liaohe fault depression through statistics of compound logging data, core observation, thin section identification, cathodeluiminescence, scanning electron microscope, x - ray diffraction analysis, image analysis, rock chemical analysis, isotope age testing, and inclusions temperature testing
摘要通過全區綜合錄井資料的統計、大量的巖心觀察,並利用薄片鑒定、陰極發光、掃描電鏡、 x衍射分析、圖像分析、巖石化學分析、同位素年齡測定、包裹體溫度測定等10餘種方法,對遼河斷陷西部凹陷白堊紀火山巖分佈、巖石類型、巖石系列、形成的構造背景及儲層特徵進行了研究。The properties of these doped powders, the microstructure and composition of these rare - earth co - doped tungsten matrices and cathodes have been investigated by size analysis, xrd, sem and edax. the electronic emission performances of these cathodes are measured in uhv electron emission surveyor. aes is adopted to analyze the atom composition and diffusion behavior of active elements on cathode surfaces
通過粒度分析、 xrd 、 sem 、 edax研究了摻雜粉末的特性、燒結基體和陰極的微觀結構和成分;用動態真空電子發射測試儀對上述陰極進行了電子發射水平的測試;採用aes對陰極表面原子組成和活性物質的擴散行為進行了研究,分析了陰極發射水平與表面原子組成的關系。The whole performance of device depends on the capability of field emitting cold cathodes which act as the kernel of all kinds of vacuum micro - electronics device. people take much measure constantly to improve the whole performance of device through mending the cathode structure and optimizing cathode preparation methods. among them, finding new material of emitting cathode is a central way to enhance the performance which be given a favorable condition offered by development of science and researching of new material
人們通過不斷的改進陰極結構,優化陰極的制備工藝等各種措施和手段來提高陰極的總體性能,其中,新材料在陰極發射體中的運用是提高陰極性能的主要途徑之一,近代科學技術的高速發展以及對新材料的進一步開發和研究為場發射陰極性能的改善提供了廣闊的發展空間和開發潛力。分享友人