中国科学院机构知识库网格系统: 检索

Study on Au coating of ceramic-lined thin-wall vacuum chamber for HIAF 期刊论文 OAI收割
VACUUM, 2021, 卷号: 184, 页码: 9
作者: Li, C. C.; Luo, C.; Liu, J. L.; Yang, J. C.; Shen, G. D.

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收藏 | 浏览/下载：18/0 | 提交时间：2021/12/10

HIAF Au coating Ceramic-lined vacuum chamber Thin-wall vacuum chamber

An entirely enclosed scanning tunnelling microscope capable of being fully immersed in liquid helium 期刊论文 OAI收割
JOURNAL OF MICROSCOPY, 2018, 卷号: 271, 期号: 3, 页码: 293-301
作者: Peng, Q.; Meng, W.; Wang, J.; Wang, Z.; Zhang, J.

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收藏 | 浏览/下载：37/0 | 提交时间：2019/11/11

Fully immersed vacuum chamber in liquid Helium in situ sample cleavage scanning tunnelling microscopy TiSe2 charge density wave ultrahigh-vacuum low-temperature STM

The vacuum system of the China spallation neutron source 期刊论文 OAI收割
VACUUM, 2018, 卷号: 154, 页码: 75-81
作者: Liu SH(刘盛画); Tan B(谭彪); Ma YS(马永胜); Sun, XY; Liu SM(刘顺明)

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收藏 | 浏览/下载：34/0 | 提交时间：2019/09/24

Spallation neutron source Vacuum system Ceramic vacuum chamber Titanium nitride (TiN) Secondary electron yield (SEY)

Design of Electron Beam Welding Vacuum Chamber for Collar Rings in CFETR Windows 期刊论文 OAI收割
JOURNAL OF FUSION ENERGY, 2017, 卷号: 36, 期号: 4-5, 页码: 127-133
作者: Zhu, Lin; Wu, Jiefeng; Liu, Zhihong; Ma, Jianguo

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收藏 | 浏览/下载：20/0 | 提交时间：2018/08/16

Electron Beam Welding Vacuum Chamber Design

Quantitative analysis of oxygen content in copper oxide films using ultra microbalance 会议论文 OAI收割
The 29th International Symposium on Rarefied Gas Dynamics, 中国陕西西安, 2014-07-13
作者: Shu YH(舒勇华); Liu C(刘崇); Wang LH(王连红); Fan J(樊菁)

收藏 | 浏览/下载：27/0 | 提交时间：2015/09/10

quartz chamber minutes heated vacuum

Study of eddy current power loss in an RCS vacuum chamber 期刊论文 OAI收割
中国物理C, 中国物理C, 2012, 2012, 期号: 2, 页码: 160-166, 160-166
作者: Xu SY(许守彦); Wang S(王生)

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收藏 | 浏览/下载：20/0 | 提交时间：2015/12/14

eddy current power loss vacuum chamber RCS CSNS eddy current power loss vacuum chamber RCS CSNS

Kinetic Studies of Gas Flows 会议论文 OAI收割
2nd International Symposium on Computational Mechanics, Hong Kong, PEOPLES R CHINA, NOV 30-DEC 03, 2009
作者: Sun QH(孙泉华); Fan J(樊菁); Fan J

收藏 | 浏览/下载：23/0 | 提交时间：2009/07/23

Kinetic Approach Micro/Nano Flow Vacuum Chamber Hypersonic Flow Dsmc Method Ip Method Rayleigh-Benard Convection Monte-Carlo Method Rarefied-Gas Statistical Simulation

The vacuum system of the BEPCII storage ring 期刊论文 OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2010, 卷号: 620, 期号: 2-3, 页码: #REF!
作者: Dong HY(董海义); Song H(宋洪); Li Q(李琦); Zhou LJ(周利娟); Yang Q(杨奇)

收藏 | 浏览/下载：30/0 | 提交时间：2016/04/12

Storage ring Vacuum chamber Photon absorber Beam dose

Fabrication and electron emission of carbon microtubes (EI CONFERENCE) 会议论文 OAI收割
Technical Digest of the 18th International Vacuum Nanoelectronics Conference, IVNC 2005, July 10, 2005 - July 14, 2005, Oxford, United kingdom
作者: Liu L.; Liu L.; Wang W.; Wang W.

收藏 | 浏览/下载：38/0 | 提交时间：2013/03/25

Carbon nanotubes have been attracting attention because of their unique physical properties and their application potential for field emission cathode. Carbon nanotubes possess the following properties favorable for field emission material such as a high aspect ratio and sharp tip high chemical stability high mechanical strength stable at high temperature. Some research works on carbon nanotubes field emitter and field emission display have been reported. Here a kind of carbon microtubes and its field emission properties are introduced. They have some different properties with carbon nanotubes and the density is lower than carbon nanotubes bundles. These carbon microtubes are directly synthesized by liquidoid epitaxy method on silicon substrates at low temperature. The field emission properties of carbon microtubes are reported too. Carbon microtubes film is synthesized in liquid by electrolysis. The graphite plate is as anode and n-silicon substrate with resistivity of 4-8 cm is as cathode. The electrolysis current is about 5-8mA/cm2 and applied voltage is 800-1500V. Temperatures of the methanol base solution is maintained at 60C in process of deposition of carbon microtubes. Carbon microtubes film is observed by scanning electron microscopy(SEM) as shown in fig.1(a b). The wall's thickness of carbon microtube is about 60nm. The diameter of carbon microtube is about 0.8 m. Raman spectrum of carbon microtubes film shows the two peaks at 1342and 1560cm-1. The field emission properties of carbon microtubes are measured in high vacuum chamber(10-5Pa). The emission area of carbon microtubes is 0.5cm 0.5cm. The threshold of field emission of the carbon microtubes film is about 3.6V/ m. Field emission property of carbon microtubes film is shown in fig.2. Another when the electric field between anode and cathode is 10V/ m the electric field distribution on single carbon microtube is also given after calculation according to electric field theory. Fig 3 shows that electric field distribution vertical section on the of single carbon microtube top with 2 m of highness. These results may help us to understand field emission properties of carbon microtubes. According to research results it is found that liquidoid synthesis is simple method to produce carbon microtubes cold cathode material and the carbon microtubes have better field emission properties. 2005 IEEE.

Patterned deposition and field emission properties of carbon nanotubes by electrophoresis (EI CONFERENCE) 会议论文 OAI收割
IVESC2004 - 5th International Vacuum Electron Sources Conference Proceedings, September 6, 2004 - September 10, 2004, Beijing, China
作者: Li Z.; Li Z.; Song H.

收藏 | 浏览/下载：24/0 | 提交时间：2013/03/25

Multi-wall carbon nanotubes were deposited on the patterned silicon substrates using electrophoretic deposition. The surface images of carbon nanotubes on substrate were observed by scanning electron microscopy. Field emission properties have been tested with a diode structure in a vacuum chamber below 510-4 Pa. The emission area measured is 1.0mm 2. Emission current density up to 30mA/cm2 at an electric field of 8V/m has been obtained. Patterned deposition of carbon nanotubes by electrophoresis is a potential method to prepare field emission arrays. 2004 IEEE.