中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Effect on microstructure of Fe80B13Si7 metallic glass irradiated by high intensity pulsed ion beam and He ions 期刊论文  OAI收割
SURFACE & COATINGS TECHNOLOGY, 2022, 卷号: 449, 页码: 128948
作者:  
Li, Na;  Zhang, Lisong;  Zhang, Xiaonan;  Cao, Xingzhong;  Zhang, Peng
  |  收藏  |  浏览/下载:14/0  |  提交时间:2023/11/13
An in situ method of measuring electrolyte solution at the solid-liquid interface with MeV He+ beam in a vacuum 期刊论文  OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2021, 卷号: 497, 页码: 24-27
作者:  
Yu, Tao;  Zhang, Hailei;  Li, Xiaoyue;  Mou, Hongjin;  Jin, Renjun
  |  收藏  |  浏览/下载:32/0  |  提交时间:2021/12/09
Experimental research into the two-proton emissions from Ne-17,Ne-18, P-28 and S-28,S-29 期刊论文  OAI收割
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2011, 卷号: 54, 页码: S73-S80
作者:  
Lin ChengJian;  Xu XinXing;  Jia HuiMing;  Yang Feng;  Jia Fei
  |  收藏  |  浏览/下载:39/0  |  提交时间:2018/05/31
A sensitive solid-phase time-resolved fluorescence immunoassay apparatus (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, June 17, 2009 - June 19, 2009, Beijing, China
作者:  
Song K.-F.;  Li J.-L.;  Zhang W.-L.;  Wang Y.-L.
收藏  |  浏览/下载:37/0  |  提交时间:2013/03/25
In the device  a He-Ne laser of flash frequency 1-20 Hz was adopted as exciting light source  and three key technical problems have been solved successfully in order to enhance the detecting sensitivity and measuring stability of the device for time-resolved fluorimmunoassays(TRFIA) [1]. The first one is to design optimum exciting optical system  so that the exciting light beam excite the sample most effectively. The second one is to have a project spectrum filter which can reduce the affection of the background light to the photomultiplier tube and also ensure influence of the stray light and mixed diffusion light to the sample fluorescence to the least  the sample fluorescence through the integrating sphere and come to the grating monochromator  The right wavelength will be chosed through changing the angle of incidence of the grating monochromator. The third one is to simulate the principle of sample averaging of BOXCAR averager. In the device  SCM was used as primary controller and CPLD was used as timing controller. Through the preparation process  signal-to-noise ratio(SNR) will be improved  also adjust delay time  ampling frequency and sampling number arbitrarily. By testing  the sensitivity is 10-12mol/L(substance marked by Eu3+)  examination repeat is &le2.5%  examination linearity is from 10 -8mol/L to 10-12mol/L  correlation coefficient is 99.98%(p&le0.01). The instrument is advanced for ultrasensitive detection of antigen and antibody  and solve the tumor  genetic variation  the virus protein detection. 2009 SPIE.  
Raman spectra and phonon modes of MgxZn1-xO alloy films (EI CONFERENCE) 会议论文  OAI收割
12th International Conference on II-VI Compounds, September 12, 2005 - September 16, 2005, Warsaw, Poland
Wei Z. P.; Lu Y. M.; Shen D. Z.; Zhang Z. Z.; Wu C. X.; Zhang J. Y.; Yao B.; Fan X. W.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
Hexagonal MgxZn1-xO alloy layers with 0 &le 0.3 have been grown by plasma-assisted molecular beam epitaxy on sapphire (006) and Si (111) substrates. Their crystal structures are characterized by x-ray diffraction spectroscopy. The nonresonant and resonant Raman spectra were measured using 488 nm line from Ar+ laser  and 325 nm line from He-Cd laser by backscattering geometry. Four Raman modes (E2 high  LO  TO  multiphonon processes) were observed in the nonresonant Raman spectra of hexagonal MgxZn1-xO with different Mg contents. The optical phonon frequencies were found to display one-mode behaviour for all the samples since no separate ZnO- and MgO-like modes were observed. The long-wavelength frequencies of ZnO-like optical phonons measured in the resonant Raman spectra can be expressed as linear functions of x. These behaviours can be explained within a modified random-element-isodisplacement model (MREI). 2006 WILEY-VCH Verlag GmbH Co. KGaA.