Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Shixiang Peng"'
Autor:
Wenbin Wu, Shixiang Peng, Ailin Zhang, Tenghao Ma, Yaoxiang Jiang, Kai Li, Bujian Cui, Zhiyu Guo, Jiaer Chen
Publikováno v:
Journal of Applied Physics. 132:083305
To understand the plasma evolution mechanism of microwave ion source (MIS), a hybrid discharge heating (HDH) mode is proposed. That mode contains two parts: ignition discharge by surface wave plasma (SWP) and ionization by electron cyclotron resonanc
Autor:
Tenghao Ma, Shixiang Peng, Yaoxiang Jiang, Wenbin Wu, Kai Li, Bujian Cui, Ailin Zhang, Zhiyu Guo, Jiaer Chen
Publikováno v:
Journal of Instrumentation. 17:P08023
At Peking University (PKU), a compact 2.45 GHz microwave ion source was developed to obtain high-intensity Li+ beam. To improve the generation efficiency of Li+ ions, we developed a built-in lithium oven named surface ionization oven (SIO), which con
Autor:
Jiamei Wen, Jingfeng Zhang, Kai Li, Yuan Xu, Ailin Zhang, Wenbin Wu, Shixiang Peng, Tao Zhang, Zhiyu Guo, Jiaer Chen, Haitao Ren, Yaoxiang Jiang, Jiang Sun, Tenghao Ma
Publikováno v:
The Review of scientific instruments. 91(3)
In modern ion implanters, a plasma flood gun (PFG) is used to neutralize wafer charge during the doping process, preventing the breakdown of floating wafers caused by the space charge accumulation. Typically, there are two kinds of PFGs, namely, dc a
Autor:
Zhiyu Guo, Yaoxiang Jiang, Shixiang Peng, Haitao Ren, Tenghao Ma, Jiang Sun, Yuan Xu, Jingfeng Zhang, Kai Li, Wenbin Wu, Jiaer Chen
Publikováno v:
The Review of scientific instruments. 91(2)
A 2.45 GHz microwave-driven ion source for the generation of multicharged ions has been designed and built at Peking University recently. The magnetic field configuration of this ion source is a minimum-B type with a combination of a hexapole field a
Autor:
Shixiang, Peng, Wenbin, Wu, Haitao, Ren, Jingfeng, Zhang, Yuan, Xu, Ailin, Zhang, Tao, Zhang, Tenghao, Ma, Yaoxiang, Jiang, Jiang, Sun, Jiamei, Wen, Zhiyu, Guo, Jiaer, Chen
Publikováno v:
The Review of scientific instruments. 90(12)
At Peking University (PKU), experimental research as well as theoretical study on how to produce high intense H
Autor:
Zhiyu Guo, Yaoxiang Jiang, Jingfeng Zhang, Kai Li, Jiaer Chen, Tao Zhang, Ailin Zhang, Shixiang Peng, Wenbin Wu, Jiamei Wen, Yuan Xu, Tenghao Ma
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 1011:165586
At Peking University (PKU), a miniaturized 2.45 GHz antenna permanent magnet electron cyclotron resonance (PMECR) ion source , capable of generating a several-mA H + beam, was produced and tested. The dimensions of the plasma chamber were ∅ 30 mm
Autor:
Ailin Zhang, Miao Qu, Sha Yan, Xingzhong Cao, Peng Zhang, Baoyi Wang, Jianming Xue, Shixiang Peng, Fanhang Kong, Yugang Wang
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 409:192-196
The damages of implanted helium ions together with energetic neutrons in tungsten is concerned under the background of nuclear fusion related materials research. Helium is lowly soluble in tungsten and has high binding energy with vacancy. In present
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 406:643-647
In this paper, helium induced hardening effect of tungsten was investigated. 50 keV He 2+ ions at fluences vary from 5 × 10 15 cm −2 to 5 × 10 17 cm −2 were implanted into polycrystalline tungsten at RT to create helium bubble-rich layers near
Autor:
Yuan Xu, Haitao Ren, Jingfeng Zhang, Sha Yan, Shixiang Peng, Jiamei Wen, Tao Zhang, Ailin Zhang
Publikováno v:
Surface and Coatings Technology. 305:132-138
Nitrogen ions with different energy of 30 keV and 50 keV and dose of 5 × 1016, 5 × 1017 and 1 × 1018 cm− 2 were implanted into the surface of AISI 420 martensitic stainless steel. The micro topography, roughness, friction coefficient, wear loss,
Autor:
Wenbin Wu, Kai Li, Zhiyu Guo, Jiaer Chen, Ailin Zhang, Yaoxiang Jiang, Yuan Xu, Tenghao Ma, Jingfeng Zhang, Shixiang Peng, Jiamei Wen, Tao Zhang
Publikováno v:
Vacuum. 182:109744
The 2.45 GHz electron cyclotron resonance ion source (ECRIS) is recognized as one of the most efficient devices for the production of high intensity H+, H2+ and H3+ beams. To elucidate the mechanism of electron cyclotron heated (ECH) hydrogen plasma,