軟射線 的英文怎麼說
中文拼音 [ruǎnshèxiàn]
軟射線
英文
soft gamma-
Its main purpose is to know different kinds of detecting method. generally, euv and soft x - ray photodetector included five types : ionization gas, semiconductor, electron multiplier and film
總的說來極紫外和軟x射線光電探測器的類型有氣體電離型、半導體型、電子倍增器以及極紫外和軟x射線膠片(干板) 。Dense gas serves to reduce the ionization, because it absorbs the ionizing soft x rays.
因為濃密氣體吸收掉了使其電離的軟x射線,因此能減少電離。By the scattering factor of henke, we calculated the peak reflectence of all possible material pairs from the recurve method of thin film optics. from the calculating results, the best material pairs of the five wavelengths are determined
從薄膜光學理論的遞推法出發,以henke的散射因子為依據,計算了候選材料的峰值反射率,從中得到了軟x射線短波段的五個波長處的最佳材料配對。Polysaccharides are main energy sources of human body and possess some important physiological functions. in this paper, polysaccharides were used as the soft templates in synthesizing selenium nanoparticles which were produced with the reduction of selenious acid by ascorbic acid. the effect factors of synthetic reaction were studied and selenium nanoparticles obtained were characterized
本文以幾種生物多糖為軟模板,採用抗壞血酸還原亞硒酸的方法合成納米硒,研究了制備反應的影響因素,得到了多種形貌的納米硒,並採用光譜法、透射電鏡、掃描電鏡、 x射線衍射等方法對產物進行了表徵。For liquid xe aerosol spray target, important lpp characteristics, such as laser - to - euv conversion efficiency, euv radiation absorption, debris production by target material erosion or deposition, are studied in detail, a 13. 4nm conversion efficiency of 0. 75 % into 2 % bandwidth and 2 steradian emission solid angle is achieved at 0. 5mm laser - nozzle distance
在實驗上,建成了一套高光譜解析度和高靈敏度的軟x射線脈沖輻射測量裝置。測量了co _ 2 、 o _ 2 、 cf _ 4 、 kr和xe液體微滴噴射靶lpp光源在6 20nm波段的軟x射線輻射光譜。Observation of the on - off sequencing of characteristic spectral lines from tracer materials arranged in layers in, or surface patterns on, planar or spherical targets can provide a record of radial or lateral energy transport processes in laser - generated plasmas
測量激光聚變靶產生的軟x射線時間變化連續譜的形狀,可以知道許多x射線產生過程的詳細動態記錄,這有助於理解實驗的熱學條件。觀察軌跡特徵譜線的閉合序列,能提供關于激光等離子體激發能量和滯后能量的傳輸過程記錄。The dissertation firstly discusses the reflectance of euv and soft x - ray in " multilayer system based on classical electrodynamics and optical characteristics of materials. the nns surface roughness in different spatial frequency range is carefully studied since scattering can seriously reduce the reflectance in euv and soft x - ray wavelength region. we discuss representative model of residual stress in
首先從材料在極紫外、軟x射線波段的光學特性出發,討論了極紫外、軟x射線在理想和非理想多層膜系中的反射特性;研究了影響極紫外、軟x射線多層膜反射率的表面粗糙度的空間頻率范圍;重點探討了多層膜殘余應力的典型模型、應力形成機制以及薄膜的形成過程。These mysterious x - ray sources, marked with green diamonds in the image, are called " quasisoft " sources because they have a temperature in the range of one to four million degrees celsius
這些神秘的射線源被稱為類軟射線源,因為它們的溫度介乎攝氏100萬至400萬度之間。In this dissertation, we mainly report on a laser - produced plasma ( lpp ) source with liquid aerosol spray target. for sufficiently high backing pressure and low temperature, the valve reservoir gas of the light source can undergo a gas - to - liquid transition
液體微滴噴射靶激光等離子體( lpp )光源是一種具有較高的軟x射線轉換效率且能夠長期連續運行的低碎屑光源。The radiation field evolves from a steady saturation state to a limit cycle oscillation state, and eventually to chaotic oscillation state as the current increases, the region in which the field exhibits limit cycle or chaotic oscillation is called the " soft " and " hard " nonlinear regime, respectively : ( 1 ) in the " soft " nonlinear regime, the radiation field is characterized by period doubled bifurcation and the discrete power spectrum
隨著電流的增大,輻射場經歷由穩定飽和到極限環型的周期振蕩,並最終過渡到非周期性混沌振蕩的演化過程,按其狀態可分為「軟」和「硬」兩種非線性區域: ( 1 )在「軟」非線性區域,場的極限環振蕩態和穩定飽和態是交替出現的,其特徵是典型的倍周期分岔,輸出功率譜是分立的。Using the x - ray powder diffraction, the electronic probe, etc, the mineral compositions and chemical compositions of the nephrite are analyzed
利用x射線粉晶衍射、電子探針等測試手段,對軟玉的礦物成分、化學成分進行了研究分析。In euv and soft x - ray band, the most often used detector is ion chamber with rare gas, from whose collective electrode we can directly calculate intensity of photon flux
在極紫外和軟x射線波段常用的探測器是稀有氣體電離室,可以通過電離室收集極的收集電流直接計算出光子流強度。Grating spectrometers, used over the ranges from soft x-rays to the far infrared, have enjoyed continued interest.
使用范圍從軟x射線到遠紅外線的光柵光譜儀繼續受到注意。3 the main facilities in our experiment are introduced. they consist of the hi - 13 model tandem accelerator, the 2. 2 - meter grazing incidence vuv to soft x - ray monochromator and the data - processing system. the testing system is also described
3介紹了主要的實驗設備,即hi - 13串列加速器和2 . 2米掠入射真空紫外到軟x射線譜段光譜儀的結構和原理,介紹了實驗數據獲取系統和實驗系統的調試。In theory, firstly, the theorectical considerations on soft x - ray are discussed. secondly, the conclusion is obtained based on the applying the lorentz reciprocity theorem, which demonstrates that equivalence of brazing exit and grazing incidence methods
在理論研究方面,首先討論了軟x射線熒光產生的原子物理相關理論;其次根據洛倫茲互換定理,得出了掠出射和掠入射兩種熒光分析理論具有互換性的結論。Hexadecyl hydrogen maleate ( hhm ) is a new kind of analyzer crystal for soft x - ray spectroscopy, with a large 2d spacing of 58. 58a. hhm is hoped to give a better growth habit than octadecyl hydrogen maleate ( ohm ), because of its shorter chain length and narrower 2d spacing. in this paper, a large hhm single crystal of dimensions 60mm x 40mm x 3mm was obtained in the benzene solution by lowing the solution temperature
馬來酸氫十六酯( hhm )是一種新型的軟x ?射線分光晶體,晶面間距2d等於58 . 58a ,與ohm (馬來酸氫十八酯)屬同一系列分光晶體,碳鏈的縮短、晶面間距的減小有望給出比ohm更好的生長和結晶習性。The discovery of quasisoft x - ray sources, along with other ultraluminous x - ray sources, should give astronomers valuable clues to the processes responsible to intermediate - mass black holes and their formation
類軟射線源和超強射線源的發現,將為天文學家探索中型黑洞提供寶貴的線索。It appears that quasisoft x - ray sources are quite common in the local universe, and if we can establish a strong link between quasisoft x - ray sources and intermediate - mass black holes, searching quasisoft x - ray sources will become a novel approach to hunt for intermediate - mass black holes
由此可見,類軟射線源在宇宙中十分普遍,只要它們和中型黑洞的關系得以確立,就能為尋覓後者提供一個全新路向。More recently, dr. rosanne di stefano also from the harvard - smithsonian centre for astrophysics and i used the chandra x - ray observatory to detect objects dubbed " quasisoft " x - ray sources in nearby galaxies because of their low temperatures, which are at most four million degrees celsius. that is well below the temperatures expected for " hard " x - ray sources such as neutron stars or stellar mass black holes - which run between 10 million and 100 million degrees celsius - and still hotter than " soft " x - ray sources like white dwarfs
最近羅珊迪史提芬路博士她亦來自哈佛大學史密森天體物理中心和筆者利用錢德拉射線天文臺在鄰近星系偵測到一種奇怪的-射線源,我們稱之為類軟射線源,因為它們的溫度最高只有攝氏400萬度,遠低於一般硬射線源,例如中子星和恆星型黑洞溫度介乎攝氏1千萬至1億度,卻又比軟射線源例如白矮星為高。The temperature range of quasisoft x - ray sources falls just right for an accreting black hole that is more massive than a stellar - mass black hole. however, we should be cautioned that in principle, the low temperatures of many quasisoft x - ray sources can be explained by stellar - mass black holes, neutron stars, and even white dwarfs under very specific physical conditions
就以類軟射線源的溫度范圍來說,雖然它完全符合那些比恆星型黑洞更大的吸積黑洞,但有一點不能忽略,就是這個溫度在理論上也可以是由恆星型黑洞中子星甚至白矮星在一些特殊物理情況下產生。分享友人