课题基金 / 基金详情

Study of the surface of magnetic material with multi-electron cature process

Study of the surface of magnetic material with multi-electron cature process
磁性材料表面多电子沉积工艺研究
批准号:
02452034
负责人:
YAMAZAKI Yasunori
金额:
$4.22万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for General Scientific Research (B)
财政年份:
1990
资助国家:
日本
项目状态:
已结题
起止时间:
1990 至 1991

项目摘要

项目成果

YAMAZAKI Yasunori的其他基金

相关文献

中文摘要
翻译
为了实现该项目,必须获得一种能够提供低速高电荷离子和高光束质量的离子源。由于研究涉及磁性材料、绝缘体等的离子-固体相互作用只需要弱光束,我们建立了一个紧凑的电子束离子源(EBIS)型离子源。在电子束能量为1.8keV、氩气压力为1 × 10^<-9> Torr的离子源下,我们成功地获得了300eV/q的氩^<15+>束流。带有一对永磁体的维恩滤光器也被用作电荷分离器。多电子捕获过程非常有趣,因为它在捕获事件前后受到电子-电子相关的强烈影响。作为第一步,我们研究了ZnO+TiO绝缘子的库仑爆炸。由于Ar^<q+> (q=1.3,6,9)捕获多个电子,引起局部带电,导致靶原子间发生库仑爆炸。利用TOF技术对二次离子的电荷状态进行了识别。实验结果表明,多重电子捕获发生在一个相当局部的区域。在之前的工作中,我们研究了正电子- c_ <60>的相互作用。作为高q的延伸,我们已经开始研究慢速高电荷离子与C_<60>之间的相互作用,这将为我们提供关于电子捕获事件的时间和空间局域化程度的信息,以及/或在C_<60>内部的多重电子捕获过程中的电子-电子相关信息。如果应用一个粗略的类比,我们可以说,主要的兴趣是看C_<60>在爆炸时表现得像气球还是像肥皂泡。(想象一下,一个气球和一个漂浮在空中的肥皂泡开始爆炸。如果是气球,爆炸会立即扩散到气球表面,而如果是肥皂泡,爆炸只在局部发生,然后逐步扩散到气球表面。
英文摘要
To perform the project, it is essential to get an ion source which provides low-velocity highly-charged ions with high beam quality. As one needs just a weak beam in studying ion-solid interaction involying magnetic material, insulator, etc., we have built a compact EBIS (Electron Beam Ion Source) type ion souce. Operating the ion source with the electron beam energy of 1.8keV and Ar gas pressure of 1x10^<-9> Torr, we have succeeded to get 300eV/q Ar^<15+> beam. A Wien-filter with a pair of permanent magnets has also been built as a charge separaptor.Multiple electron capture process is very interesting because it is strongly affected by electron-electron correlation before and after the capture events. We have, as the first step, studied a Coulomb explosion of insulator (ZnO+TiO). The Coulomb explosion occurs among target atoms because multiple electron capture by Ar^<q+> (q=1.3,6,9) induce a local charge-up. The TOF technique is employed to identify the charge state of the secondary ion.The experimental results infur that multiple electron capture occurs from a rather localized area. In a previous work, we had studied positron-C_<60> interactions. As an extension to high q, we have started to investigate the interaction between slow highly-charged ion and C_<60>, which will provide us with information on the extent of time and space localization of electron capture events, and/or on electron-electron correlation inside C_<60> during multiple electron capture. If a crude analogy is applied, we may say that the major interest is to see whether C_<60> behaves like a balloon or like a soap bubble during explosion. (Imazine that a balloon and a soap bubble floating in the air now start explosion. In the case of a balloon, the explosion spreads over the balloon surface immediately, how-ever, in the case of a soap bubble, the explosion occurs locally and spreads over the surface step by step.)
期刊论文(56)
专著(0)
科研奖励(0)
会议论文
川面澄: "High Ryderg and Auger electrous from fast Projectile studied by Zero-degree electron spectroscopy" Nucl.Instrum.Methods. B53. 421-425 (1991)
Sumi Kawamo:“通过零度电子能谱研究快速射弹的高 Ryderg 和俄歇电”Nucl.Instrum.Methods 421-425 (1991)。
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K.Kawatsura, M.Sataka, H.Naramoto, M.Imai, K.Komaki, Y.Yamazaki, K.Kuroki, Y.Nakai, T.Kambara, Y.Awaya: "High rydberg and auger electrons from fast projectile ions studied by zero-degree electron spectroscopy" Nucl.Instrum.Methods. B53. 421-425 (1991)
K.Kawatsura、M.Sataka、H.Naramoto、M.Imai、K.Komaki、Y.Yamazaki、K.Kuroki、Y.Nakai、T.Kambara、Y.Awaya:“来自快速射弹离子的高里德堡和螺旋电子
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山崎 泰規: "Measurements of electron spectra in the forward direction in slowーantiproton carbonーfoil collisions" J.Phys.Soc.Jpn. 59. 2643-2646 (1990)
Yasunori Yamazaki:“慢速反质子碳箔碰撞中向前方向的电子能谱测量”J.Phys.Soc.Jpn. 59. 2643-2646 (1990)
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30
    Hyperfine splitting of antihydrogen and Magnetic moment of antiproton
    • 批准号:
      24000008
    • 项目类别:
      Grant-in-Aid for Specially Promoted Research
    • 资助金额:
      $222.14万
    • 财政年份:
      2012
    • 负责人:
      YAMAZAKI Yasunori
    • 依托单位:
    Evolution of antimatter science with antihydrogen atoms and antihydrogen ions
    IniFial trapping process of ultra slow antiprotons
    • 批准号:
      07044067
    • 项目类别:
      Grant-in-Aid for international Scientific Research
    • 资助金额:
      $1.15万
    • 财政年份:
      1995
    • 负责人:
      YAMAZAKI Yasunori
    • 依托单位:
    Study of initial stages of antiproton trapping processes
    • 批准号:
      06402015
    • 项目类别:
      Grant-in-Aid for General Scientific Research (A)
    • 资助金额:
      $8.83万
    • 财政年份:
      1994
    • 负责人:
      YAMAZAKI Yasunori
    • 依托单位: