探測寬度 的英文怎麼說
中文拼音 [tàncèkuāndù]
探測寬度
英文
detection width- 探 : Ⅰ動詞1 (試圖發現) try to find out; explore; sound 2 (看望) call on; visit; see 3 (向前伸出)...
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 探測 : survey; search; sound; probe; sounding; detection; acquisition; reconnaissance; localization; fin...
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Ion detection technique has been successfully used in the study of rydberg states of na2 by pulse optical - optical double resonance. high - lying rydberg states near ionization limit have been observed and high sensitive and high gain spectra have been obtained. this technique is very useful for molecular spectroscopy
本文首次實現了鈉分子體系中離子探測脈沖激光光譜,研究了鈉分子電離限附近的高里德堡態,獲得了高靈敏度和高增益的光譜,拓寬了分子光譜研究領域。Zno film is a novel - direct compound semiconductor with wide band gap energy of 3. 37ev and a exciton binding energy 60mev at room temperature. due to its the prerequisite for visible or ultraviolet light emission at room temperature, it has the tremendous potential applications for ultraviolet detectors, leds, lds. zno thin film is used widely and effectively in the fields of surface acoustic wave devices, solar cell, gas sensors, varistors and so on because of its excellent piezoelectrical performance
室溫下禁帶寬度為3 . 37ev ,激子束縛能為60mev ,具備了室溫下發射紫外光的必要條件,在紫外探測器、 led 、 ld等領域有著巨大的發展潛力; zno薄膜以其優良的壓電性能、透明導電性能等使其在太陽能電池、壓電器件、表面聲波器件、氣敏元件等諸多領域得到廣泛應用。In this thesis, wide - fov ( field - of - view ) optical systems with optical gain based on fov and optical gain of laser detection and warning optical system are studied. it can solve the problem of wide fov matching with small photosensitive surface, enhance the power received, increase detecting sensitivity, reduce the power of laser and decrease the cost of laser accordingly
本文正是針對上述問題,從激光輻射探測光學系統的視場和光學增益出發,研究寬視場有增益光學系統,解決大視場和小光敏面匹配的矛盾,增強接收到的光功率,提高探測靈敏度,降低對激光輻射源功率的要求,從而降低相應激光器的成本。During searching the topic - relevant web pages, immediate reward is used as evaluation criterion for exploitation to speedup mining information. while searching the transitional web pages, future reward is used as evaluation criterion for exploration to speedup locating
在與主題相關的網頁集群中進行搜索時,使用立即回報加速挖掘的進度;在過渡型的網頁集群中使用未來回報拓寬探測的范圍以加快定位過程。After measuring dark current, photocurrent and response to x pulse of gaas detector before and after 1. 7 mev electronic radiation, the response tune, fall time of trailing edge, full width of half maximum ( fwhm ), sensitivity, carrier life, mobility are researched and contrasted. the result shows that the response speed of detector, time resolution ratio and nonlinear of back edge of output signal have been improved greatly after electronic radiation. though sensitivity of the detector reduces, its measuring range can be widened
為了使探測器的性能得到進一步的提高,我們對其進行了電子輻照改性,並測量了本徵砷化鎵探測器和經過1 . 7mev電子輻照的探測器的暗電流、光電流及對x射線的脈沖響應,並對其響應時間,后沿下降時間,半高寬( fwhm ) ,載流子壽命,靈敏度進行對比,研究,結果顯示經電子輻照后的探測器的性能得到了改善,使響應速度,分辯率進一步提高,並消除了探測器輸出信號后沿的非線性,雖靈敏度有所降低,反而使其測量范圍得以拓寬。In chapter 3, we studied the effect of gaussian transverse profile for the driving and laser fields on lasing without population inversion ( lwi ) in a closed v - type system and an open v - type system. moreover, we discussed also the effect of the unsaturated gain coefficient, the cavity - damping rate, the ratio of the atomic injection rates and atomic exit rate on the corresponding systems. in chapter 4, we mainly discussed the effect of doppler broadening on the gain, dispersion and the frequency up - conversion of the open v - type lwi system and compared the differences and the same between the open system and the corresponding closed system
發現: ( 1 )在考慮doppler展寬的情況下,通過選取合適的實驗室條件(比如合適的原子環境溫度等)可得到合適doppler展寬值,從而使系統獲得最佳增益; ( 2 )要想實現系統的頻率上轉換,同時又要獲得足夠強的無反轉激光增益,則系統頻率轉換比不能選取的太大; ( 3 )對于開放系統,比較小的粒子注入速率比與退出速率對產生無反轉激光是有利碩士學位論文摘要的: ( 4 )由於dopp1oy展寬的存在,當探測場與驅動場的傳播方向相反時,增益在探測場失諧的某一段區域產生振蕩,且振蕩的振幅、頻率失諧范圍的大小與dopper展寬的取值有關。Moreover because the detector output pulse signal base is very broad, its scope has a long tail, it can not adapt to request of the multichannel pulse amplitude analyzer
另外由於探測器輸出脈沖信號底部較寬,脫尾嚴重,不能滿足多道脈沖幅度分析器的要求。The system uses hpc as a detector, based on the computer and network technology, reaches the design requirements of high - sensitivity, wider range, full automation and no - man on duty
該系統採用高壓電離室為探測器,利用計算機及網路技術,基本達到了靈敏度高、量程寬、全自動無人值守的設計要求。Secondly, according to the basic theory of the general spectrometer, in this paper we discuss the fundamental, the compositions and the characters of tcecs. we analyze the main influencing factors for resolving power, such as the dispersion of the x - ray on the detection circle, spectra location error and the aperture width etc. and we put out the ways to resolving the problems
接下來,本文根據經典光譜儀器的基本理論,著重討論了雙通道橢圓彎晶譜儀的基本原理,及其基本組成和基本特性,並從x射線波長在探測圓上的彌散度、光度參數與探測角之間的關系、狹縫寬度等方面對譜儀的精度和解析度的影響作了一定的分析,並提出了解決問題的辦法。The qinshan power station environment supervisor system for the nuclear radiation dosage is an intelligent continual online supervisor system. it is equipped with high alert automated device with rs131, which makes it getting stronger functions and higher abilities
秦山核電站環境輻射監測系統是一個全自動智能化連續在線輻射監測系統,它配備了高靈敏度、寬量程的輻射探測儀和自動采樣設備,該系統功能強,可靠性高。More recent studies show nanowires products with narrow dismeter distribution around 5 - 10mn and lengths ranging from several hundred nanometers to several micrometers can be obtained if the mixture solution of naoh and koh was replaced by koh solution. the nanowires were analyzed by a range of methods including powder x - ray diffraction ( xrd ), high resolution electron microscopy ( hrem ), selected area electron diffraction ( saed ), electron energy loss spectroscopy ( eels ), xrd and hrem image simulations. the structure of nanowires is determinded to be of the type of k2ti6oi3
利用x射線衍射( xri ) ) 、高分辨電子顯微鏡( hrtem ) 、選區電子衍射( saed ) 、電子能量損失譜( eels )以及x射線衍射和高分辨像模擬等分析測試手段,初步分析了這種納米線的生長機理,探討了她的結構和光學性能,實驗結果顯示這種納米線具有kzti6o ; 3的結構,紫外一可見光吸收光譜顯示, kzti6ol3納米線禁帶寬度約為3 . 45ev 。The simulated results show that we can improve the sensitivity by setting the optical bias at / 2, reducing the gap of electrode, increasing the overlap integral factor, reducing the insert lose, adopting suitable segmentation number, increasing the electrode length, increasing the optical power, reducing the wavelength and the relative intensity noise and reducing the receive bandwidth ; obtain the wider bandwidth utilizing reducing the electrode length and the capacitance of modulator, segmentation the electrode ; increase the dynamic range using lowering noise, increasing the optical power at the detector and lower optical bias
通過計算得知,使傳感器相位偏置為/ 2 ,減小電極間距,提高電光重疊因子,減小器件插入損耗,採用合適的分段數,增加電極長度,增大光功率,降低激光的波長,減小相對強度噪聲,減小接收帶寬,對提高靈敏度的效果是非常明顯的。而減小天線長度,降低調制器電容,電極分段,都可以獲取較大的帶寬。降低系統噪聲;增加到達探測器的光功率,採用較低的光學偏置,都可以增大線性動態范圍。Abstract : in tokamak plasma radiation diagnostics, if the width of a detected plasma chord is comparable with the plasma minor radius, the plasma boundary may influence the line - integrated emissivity considerably and make it a weighted integral of the width - averaged emissivity
文摘:在托卡馬克輻射診斷中,當探測束線的極向寬度與等離子體小半徑可以比較時,等離子體邊界會顯著影響線積分輻射率,使其成為寬度平均輻射率的帶權重的線積分。In order to investigate fiber morphological characters of poplar before and after pulp manufacture, the fiber length, fiber width, double wall thickness and lumen diameter of fiber of two kinds of poplar from different stand conditions were determined and analyzed
摘要為了探索制漿前後楊樹纖維形態的變化,對5個楊樹無性系在不同立地條件下的纖維長度、寬度、雙壁厚及腔徑進行了測定和分析。This method is a kind of the end to end approach, based on the novel concept of using dummy segments to probe the availability of network resources in order to using the network resources more effectively. for the packet loss caused by the link error, it can recover the congestion windows quickly, so the goodput of tcp in satellite net can be improved
Tcp - peach2方案是基於探測報文的一種端到端的解決方案,通過發送探測報文來對鏈路的實際容量進行探測,從而更加有效的利用網路帶寬,提高tcp協議的性能。對于由鏈路出錯所引起的數據包丟失,可以明顯加快發送窗口的恢復速度,從而大大提高衛星鏈路中tcp的吞吐量。Zno is promising : high - quality zno with very low defect densities can be synthesized at much lower temperature ; zno can emits light with shorter wavelength than blue light emission from gan ; zno has higher excitonic binding energy promising strong photoluminescence from the bound excitonic emissions even at room temperature ; by alloying with mgo, tuning of the band gap while keeping the zno hexagonal structure can be achieved by forming mgxzn1 - xo. as we know, band gap tuning is important to produce efficient and lasting light emitting diodes ( led ) and other electronic devices
利用mg _ xzn _ ( 1 - x ) o薄膜,可以在保持zno六方纖鋅礦( wurtzite )結構的同時有效調節調節薄膜的禁帶寬度,制備出基於氧化鋅的量子阱、超晶格及相關的光電器件,如基於氧化鋅的紫外光探測器、紫外發光二極體和紫外激光二極體等光電子器件。It possess many of the physical properties such as high atomic number ( z ), large enough band gap, high resistivity, relatively low leakage currents, and high intrinsic mobility - lifetime ( ut ) product, which are required for room - temperature nuclear radiation detectors. so it is widely used in nuclear medical imaging system, space engineering, and astrophysics, environmental monitoring, and so on. in addition, it is the best substrate for lattice matched epitaxial growth of hg1 - xcdxte ( mct ) thin films and solar cells
用單晶czt製成的探測器可在室溫下工作,工作溫度范圍寬( - 20 40 ) ,能量探測范圍寬( 10kev 6mev ) ,對x射線、射線能量解析度高,在x射線、射線成像、天體物理研究、工業探測、安全檢測、核輻射探測、核廢料監控、 x射線熒光分析( xrf ) 、 x射線斷層掃描和核醫學等方面有重要用途。Detection of red blood cell volume distribution width of malignant anemia patients
惡性腫瘤貧血患者紅細胞體積分佈寬度檢測探討In this dissertation, a boa - type waveguide optic switch with double - heterostructure gaas / gaalas has been researched. gaas - based integrated optical devices have good temperature, good anti - radiation and optical - transmission characteristics, and also have wide transparent range of wavelength. they can also be integrated on a chip with optical active devices and electronic devices, such as semiconductor laser, optical modulation, optical amplifier, pin, and so on
基於gaas材料的集成光學器件不僅具有良好的光傳輸特性、溫度特性、抗輻射能力和其較寬的透明波長范圍,還有望進一步實現晶元與光源、光調制器、光探測器和半導體光放大器等其它光電器件以及集成電路的單片集成;採用gaas gaalas雙異質結材料製作的光開關可以得到較低的開關電壓,而且採用gaas gaalas異質結材料的光傳輸損耗很小。Simultaneously used the massive experimental result, we determine important parameters of detection traffic as packets sending gap and packet type
同時利用大量實驗數據確定了探測包的發包間隔、探測包模型和測量寬度等重要參數。分享友人