Zobrazeno 1 - 10
of 267
pro vyhledávání: '"Mamiko, SASAO"'
Autor:
Mamiko Sasao, Gilles Cartry
Publikováno v:
Physics and Applications of Hydrogen Negative Ion Sources ISBN: 9783031214752
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3808b0f7df8d072e5da698f2ebffce9
https://doi.org/10.1007/978-3-031-21476-9_10
https://doi.org/10.1007/978-3-031-21476-9_10
Publikováno v:
The Review of scientific instruments. 91(1)
We developed a small-size electron gun capable of producing electrons with kinetic energy less than few tens of eV to investigate the slowing down and transport mechanisms of electrons in hydrogen negative ion source plasmas. The maximum extractable
Autor:
Yuji Shimabukuro, Fumiya Ikemoto, Motoi Wada, Masashi Kisaki, Takayuki Eguchi, Mamiko Sasao, Katsuyoshi Tsumori, Haruhisa Nakano
Publikováno v:
The Review of scientific instruments. 91(1)
A compact ion source that produces hydrogen plasma with an electron cyclotron resonance (ECR) configuration combined with a 2-stage extraction system with a single aperture of 6 mm diameter has been designed and built to study the performance of diff
Autor:
Hideaki Kasai, Hiroshi Nakanishi, Nozomi Tanaka, Allan Abraham B. Padama, Masashi Kisaki, Mamiko Sasao, Motoi Wada, Wilson Agerico Diño, Katsuyoshi Tsumori
Publikováno v:
e-Journal of Surface Science and Nanotechnology. 16:391-395
Publikováno v:
Journal of Applied Physics. 129:221101
In this Tutorial, surface and double charge exchange negative ion sources for producing negative ion beams of different ion species will be described. The need for negative ions as the beam particles of tandem Van de Graaf accelerators and that for c
Autor:
Nozomi Tanaka, Fumiya Ikemoto, Hitoshi Yamaoka, Mamiko Sasao, Yuji Shimabukuro, Motoi Wada, Wilson Agerico Diño, Masashi Kisaki, Ippei Yamada
Publikováno v:
Review of Scientific Instruments. 91:013313
Positive and negative hydrogen ion reflections from surfaces by injecting singly charged hydrogen ion beams show a clear difference between atomic and molecular ion injections at low energy and grazing incidence. The intensity ratio of reflected nega
Publikováno v:
Review of Scientific Instruments. 91:013330
The AC component of a beam current extracted from a negative hydrogen (H−) ion source was detected through a 0.1 mm wide, 66.5 mm long entrance slit to observe the spatial distribution. An internal antenna type multicusp source driven by a 2 MHz ra
Development of a compact molecular hydrogen ion source for low-energy surface scattering experiments
Publikováno v:
AIP Conference Proceedings.
A compact ion source with the extraction energy less than 300 eV has been developed to study low-energy ion reflection from a metal surface. Extraction characteristics of atomic and molecular hydrogen ion beams were investigated by changing the wall
Publikováno v:
AIP Conference Proceedings.
For an unique experimental approach to study low-energy electron transport in a plasma, a “sub” filament was introduced in a volume-produced, DC filament-driven hydrogen negative ion (H−) source as an additional electron source. The sub-filamen
Publikováno v:
AIP Conference Proceedings.
Negative hydrogen (H−) ion density near the plasma electrode (PE) depends upon the materials which are absorbed the PE surface. Tungsten and tantalum were compared as adsorbates on the PE by means of evaporation from the filaments made of these ele