Zobrazeno 1 - 10
of 18
pro vyhledávání: '"B. E O'Rourke"'
Autor:
A. Ishida, Asai Shoji, Yoshioka Kosuke, Fan Xing, Murayoshi Tomoyuki, Kuwata-Gonokami Makoto, B E O’Rourke, Suzuki Ryoichi, Namba Toshio, Oshima Nagayasu, Shu Kenji
Publikováno v:
3rd China-Japan Joint Workshop on Positron Science (JWPS2017).
Publikováno v:
Journal of Physics: Conference Series. 58:351-354
We have observed nanodots on a highly orientated pyrolytic graphite (HOPG) surface produced by highly charged ion impacts using a scanning tunneling microscope. Previous measurements have con.rmed the dominant role of the potential energy or the inci
Autor:
Y Yamazaki, B. E O'Rourke, Chen Liang, Yang Xiu-Yu, Y Mitsuda, Wang Tie-Shan, Cheng Rui, Peng Hai-Bo, Xu He
Publikováno v:
Chinese Physics Letters. 25:2020-2022
Highly charged ions (HCIs) have huge potential energy due to their high charge state. When a HCI reaches a solid surface, its potential energy is released immediately on the surface to cause a nano-scale defect. Thus, HCIs are expected to be useful f
Autor:
Atsushi Yabuuchi, B E O’Rourke, Suzuki Ryoichi, Kinomura Atsushi, Kobayashi Yoshinori, Kato Hidetoshi, Oshima Nagayasu, Ohdaira Toshiyuki
Publikováno v:
Proc. 2nd Japan-China Joint Workshop on Positron Science.
We have developed a positron moderator annealing system with a handmade electron gun which allows the pre-assembled moderator temperature to be monitored directly during heating. The moderator, composed of strips of tungsten arranged in a regular lat
Publikováno v:
Proc. 2nd Japan-China Joint Workshop on Positron Science.
We have measured the emission stability of a coniferous carbon nano-structure (CCNS) field emission electron source. Stable emission over the 1274 h measurement was observed at an emission current density of 20 mA·cm−2. The CCNS emitter can genera
Publikováno v:
Journal of Physics: Conference Series. 791:012035
Detection methods for re-emitted positrons from Ni samples were investigated for in-situ positron annihilation lifetime spectroscopy during ion beam irradiation. A conventional mesh electrode and a ring electrode were examined to detect re-emitted po
Publikováno v:
Journal of Physics: Conference Series. 791:012029
Positronium (Ps; a bound state of an electron and a positron) formation in insulating materials is explained by the spur reaction model. According to the model, electron and/or positron mobility affects the yield of Ps formation. A vertical slow posi
Autor:
Koichi Sato, Atsushi Yabuuchi, Qiu Xu, Atsushi Kinomura, B E O’Rourke, Y. Kuzuya, Nagayasu Oshima
Publikováno v:
Journal of Physics: Conference Series. 791:012013
The pulsing performance of the positron-beam-pulsing system of the slow positron beamline at Kyoto University research Reactor was tested using electron beams trimmed by 5-mm- or 15-mm-diameter apertures. Electron pulses with full width at half maxim
Publikováno v:
The Physics of Multiply and Highly Charged Ions ISBN: 9789048164028
Removal of the final, tightly bound electron from an ion by electron impact is discussed. The experimental methods used to obtain absolute or relative cross sections for this process are reviewed. Several analytical formulations which may be used to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7e2b34c5cf68379bc040c395b5f2a31
https://doi.org/10.1007/978-94-017-0542-4_10
https://doi.org/10.1007/978-94-017-0542-4_10
Publikováno v:
Journal of Physics: Conference Series. 505:012022
Silicon-oxide-backboned hybrid thin films with thicknesses around 600 nm were fabricated through plasma enhanced chemical vapor deposition from tetraethyl orthosilicate mixed with hexamethyldisiloxane as precursors, and their subnano-scaled holes, ge