Very intense X ray emission, high energy ions and neutrons with energies up to MeV have been produced in the interaction process of ultrashort laser pulses with atomic clusters.
文章介绍了原子团簇在超短脉冲强激光场的作用下的加热、电离和膨胀等机制。
The combination of this unusual X-ray and optical emission makes this a remarkable object.
这一不寻常的X射线和光发射的组合使它成为一个显著的对象。
There are, however, no interference problems with field-emission X-ray sources, so these can be used to take high-resolution pictures while treatment is proceeding.
而在场放射X射线源下就不会有这样的问题，可以在拍摄高分辨率图像的同时进行治疗。
Thecombination of this unusual X-ray and optical emission makes this aremarkable object.
这一不寻常的X射线和光发射的组合使它成为一个显著的对象。
The scientists found the observed X-ray emission was a factor of 30 to 50 times smaller than expected from the accretion scenario, effectively ruling it out.
科学家发现，观测到的X射线辐射要比吸积模型预言的少上30到50倍，这有效地将该模型排除了。
A supernova from a merger of two white dwarfs, on the other hand, would create significantly less X-ray emission than the accretion scenario.
相反，来自双白矮星并合的超新星产生的X射线辐射要比吸积少很多。
One member of their group, Michael Odelius of Stockholm University, even left the collaboration because he disagreed with their interpretation of the X-ray emission data.
他们的一个组员，斯德哥尔摩大学的迈克尔odelius，甚至退出了合作，因为他不同意他们对X射线辐射数据的解释。
A Type 1a supernova caused by accreting material produces significant X-ray emission prior to the explosion.
由物质吸积导致的Ia型超新星会在爆发前产生大量的X射线辐射。
The purple emission is multi-million degree gas detected in X-rays by NASA's Chandra X-ray Observatory and the other colors show galaxies in an optical image from the Sloan Digital Sky Survey.
其中紫色喷发状物质是几百万度高温的气体，由ChandraX射线天文中心探测；其他颜色展示了斯隆数字星空调查的光学图片中的一些星系。
Two spectacular tails of X-ray emission have been seen trailing behind a galaxy using the Chandra X-ray Observatory.
通过ChandraX射线观测台，我们观测到一个星系拖曳着两个由X射线射流组成的壮丽的大尾巴。
The image includes X-ray data from Chandra (colored purple), optical and ultraviolet (UV) data from Hubble (red and orange), and radio emission from the Very Large Array (VLA) and MERLIN (blue).
图像中的x射线数据来自钱德拉(紫色部分)，光波和紫外光数据来自哈勃(红色和橙色)，射电辐射则来自甚大阵射电望远镜(very largearray)和梅林(蓝色)。
Two spectacular tailsof X-ray emission have been seen trailing behind a galaxy using theChandra X-ray Observatory.
通过ChandraX射线观测台，我们观测到一个星系拖曳着两个由X射线射流组成的壮丽的大尾巴。
Using field emission cathode, X ray source can be made with several advantages: smaller volume and brighter, high frequency response, in-time turning on, etc.
采用场发射阴极的X射线光源具有体积小，辐射强度高，频率响应快，可以随时开启，无需预热的优点。
The application condition of inner quality testing of carbon material by ultrasonic, X ray and acoustic emission was introduced.
论述了超声波、X射线及声发射三种无损检测方法在碳素材料内部质量检测中的应用状况。
The luminosity and the energy of emission line correlate with the pulse phase of X-ray pulsar as well.
而且发射线的强度和能量均与脉冲相位关联。
X-ray diffraction indicates that the prepared films are AlN films. The field emission characteristics of the AlN films were measured in an ultra-high vacuum system.
在超高真空系统中测量了不同膜厚样品的场发射特性，发现阈值电场随着厚度的增加有增大的趋势。
Studying the characteristics of solar X-ray emission for proton flare will provide an important way and method for proton event warning.
太阳质子耀斑X射线辐射特征的研究，为太阳质子事件的警报提供一个重要的途径和方法。
The X-rays are sent off into space before the matter crosses the Schwarzschild radius and crashes into the singularity. Thus we can see this X-ray emission.
在物质穿过希瓦兹凯尔德半径，被压挤成单一体之前；x射线会进人太空，因而我们能够发现这种x射线辐射。
The morphology, structure, and photoluminescence(PL) of the phosphors were investigated by transmission electron microscope(TEM), X-ray diffraction(XRD), emission spectra, and decay time.
以X射线衍射（XRD）、透射电子显微镜（TEM）、发射光谱和衰减时间谱等手段表征材料性能。
The phase composition and microstructure of mullite powders were investigated by X-ray diffraction and field emission scanning election microscopy techniques.
利用X射线衍射仪和场致发射扫描电子显微镜等手段对合成粉体的相组成、结构和形貌进行了研究。
This paper presents the studies of the dependence of soft X-ray emission on atomic-number and laser intensities by using a new diagnostic tool, pinhole transmission grating spectrograph (PTGS).
利用带有针孔的透射式光栅光谱仪研究了激光等离子体X射线辐射的原子序数依赖性和激光功率密度对辐射的影响。
Faint X-ray emission is seen along the filament, showing that it contains hot gas as well as galaxies.
沿着细线方向观测到微弱的X线辐射，表明那里与星系团中一样包含热气团。
The characteristics of X-ray emission from source region and implosion region were obtained.
基本上弄清了空腔靶源区、向爆区X光发射特性。
Astronomers have also detected older and smaller m stars, previously thought to be quite dim, that actually outshine the sun in their X-ray emission.
天文学家还探测到有一些较老较小的M型星，它们发射的X射线实际上比太阳更加光辉灿烂，而先前人们却认为它们是十分幽暗的。
The hard X-ray emission and sawtooth oscillations have been observed.
观测了硬X射线发射和起伏锯齿波形。
In this paper, a diagnostic method of average ionization degree by X-ray emission spectra of laser-produced gold plasma was presented.
提出一种测量金激光等离子体电荷态分布与平均电离度的X射线光谱学诊断方法。
With the present lasers, X-ray microscopy can be made using narrow band emission or black body radiation from laser plasmas.
就目前的泵浦激光条件，采用窄带辐射和黑体辐射可进行水窗波段X光显微成像的实验研究。
In addition, the absorption coefficients and the dopant concentration doped of these samples weren't the same for X-ray excitation, therefore, their light emission efficiencies were also different.
这些样品本身对X射线的吸收系数及掺杂浓度不一样，因此它们的光发射效率也有所差别。
The X-ray diffraction (XRD), excitation, emission and phonon side band spectra of the upper and lower parts of crystals were measured.
测定了晶体下部与上部的X射线衍射图（XRD）、激发光谱、荧光光谱以及声子边带谱。
The synthesized sample was characterized by X-ray diffraction, excitation and emission spectroscopy.
对样品进行了X射线衍射分析和光谱分析。
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