http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Metal Beam Extraction Experiment of a SC-ECRIS at the RAON Accelerator
Yonghwan Kim,Jeongil Heo,Taeksu Shin,Hironobu Ishiyama 한국물리학회 2020 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.76 No.7
We designed and fabricated a sputtering source with a simple structure to extract metal beam for the RAON heavy ion accelerator. As a test material, Bi with a mass number of 209 was selected, and a beam extraction experiment was conducted. A Bi25+ beam with a current of 3 euA was extracted during the preliminary beam extraction experiment. We confirmed that impurity control and a high-power comparative experiment are necessary for future experiments.
Magnetic Actuator for a Capsule Endoscope Navigation System
Atsushi Chiba,Masahiko Sendoh,Kazushi Ishiyama,Ken Ichi Arai,Hironao Kawano,Akio Uchiyama,Hironobu Takizawa 한국자기학회 2007 Journal of Magnetics Vol.12 No.2
The authors propose a magnetic actuator for use as a navigation system for capsule endoscopes. The actuator is composed of a capsule dummy, a permanent magnet inside the capsule, and an external spiral structure. The device rotates and propels wirelessly when exposed to an external rotational magnetic field. In this study we measured the effect of the spiral shape on the velocity and thrust force properties. According to our experimental results, the actuator obtained a maximum velocity and thrust force when the spiral angle was set at 45 degrees, the number of spirals was set at 4, and the spiral-height was set at 1-㎜f. We also conducted a motion test in the large intestine of a pig placed on a 30 degrees slope. The actuator passed through a 700 ㎜ length of the intestine in about 300 s. The device also managed to travel up and down the 30 degrees slope with no difficulty whatsoever. Our results demonstrate the great potential of this actuator for use as a navigation system for capsule endoscopes.