Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Katsunori Kawasaki"'
Autor:
Liang Lu, Toshiyuki Hattori, Huanyu Zhao, Katsunori Kawasaki, Liangting Sun, Yuan He, Hongwei Zhao
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 18, Iss 11, p 111002 (2015)
A hybrid single cavity (HSC) linac, combined with radio frequency quadrupole and drift tube structure in a single interdigital-H cavity, operates with high rf power as a prototype injector for cancer therapy synchrotron. The HSC adopts a direct plasm
Externí odkaz:
https://doaj.org/article/818ce564f83d492b8b634a75bd4c9e2a
Lifetime dependence of nitrided carbon stripper foils on sputter angle during N+ ion beam sputtering
Autor:
Katsunori Kawasaki, Toshiyuki Hattori, Isao Sugai, M. Oyaizu, Hirokane Kawakami, Yasuhiro Takeda, T. Kadono
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 358:263-270
We fabricated high-lifetime thin nitride carbon stripper (NCS) foils with high nitrogen contents using ion-beam sputtering with reactive nitrogen gas and investigated the dependence of their lifetimes on the sputter angle. The nitrogen in carbon foil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f154e6583dc6da90ce398e7636780703
https://doi.org/10.1016/j.nimb.2015.07.007
https://doi.org/10.1016/j.nimb.2015.07.007
Autor:
Bolormaa Oyuntsetseg1,2 bolormaa@num.edu.mn, Katsunori Kawasaki3, MakikoWatanabe2, Batkhishig Ochirbat4
Publikováno v:
ISRN Analytical Chemistry. 2012, Vol. 2012, p1-9. 9p.
Publikováno v:
ISRN Analytical Chemistry. 2012:1-9
The objective of this study is to investigate the contamination levels of toxic elements (TEs) in the vicinity of the small-scale mining Boroo area, Mongolia. Samples of surface soil, ground water and human hair were collected around the gold washing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca8165e8992ccf7e209b4f4293c55131
https://doi.org/10.5402/2012/153081
https://doi.org/10.5402/2012/153081
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 269:223-228
We have successfully developed a new method to reduce the amount of carbon buildup on thin cluster (less than 3.5 μg/cm 2 ) carbon stripper foils by heating them with infrared radiation during beam bombardment. We studied the carbon buildup and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e02b21e5d94b3323eef418718a325693
https://doi.org/10.1016/j.nimb.2010.11.034
https://doi.org/10.1016/j.nimb.2010.11.034
Publikováno v:
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B. 77:1130-1137
This study investigated the characteristics of cell performance degradation, decline of component performance, and changes in the properties of membrane electrode assembly materials caused by repeated cold starts under a subzero condition of −30 °
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c8313d2561831b03b467c225fb1ad47
https://doi.org/10.1299/kikaib.77.1130
https://doi.org/10.1299/kikaib.77.1130
Autor:
Yasuhiro Takeda, Isao Sugai, Hirokane Kawakami, Akira Takagi, Katsunori Kawasaki, M. Oyaizu, Yoshiro Irie, Toshiyuki Hattori
Publikováno v:
Vacuum. 84:1448-1451
Thin carbon stripper foils used in high-intensity proton accelerators and heavy-ion accelerators must have long lifetimes. Thin carbon foils were fabricated by ion-beam sputtering using reactive and inert gas ions. The lifetime of the foils was measu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6a62a0991be486be1f5fffc1025a2ba
https://doi.org/10.1016/j.vacuum.2010.01.050
https://doi.org/10.1016/j.vacuum.2010.01.050
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 613:448-452
Mixed noble gas (Kr+Ne) was used for ion beam sputtering (MIBS) with the aim to produce stripper foils with long lifetime. Further characteristics of the MIBS method were investigated. Angular thickness distributions were measured for the deposits of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04139c0d249692f1216126fe5d6da255
https://doi.org/10.1016/j.nima.2009.10.001
https://doi.org/10.1016/j.nima.2009.10.001
Autor:
Katsunori Kawasaki, Isao Sugai, Hirokane Kawakami, Akira Takagi, H. Hattori, M. Oyaizu, Yoshiro Irie, Y. Takeda
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 613:457-461
We have developed hybrid type boron-mixed carbon (HBC) foils for the rapid cycling synchrotron (RCS) of Japan-proton accelerator research complex (J-PARC) using the controlled DC arc-discharge method. The method has been found suitable for the produc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2305cf881ea08f879551e4ed40720307
https://doi.org/10.1016/j.nima.2009.10.003
https://doi.org/10.1016/j.nima.2009.10.003
Publikováno v:
Radiation Effects and Defects in Solids. 164:561-565
Carbon stripper foils having thicknesses in the range of 5–40 μg/cm2 have been prepared by a nitrogen ion beam sputtering method and their lifetimes have been tested in the Van de Graaff accelerator facility with 3.2 MeV, Ne+ ions. The foils of 21
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73bbaae235cfea0f86970517034713d9
https://doi.org/10.1080/10420150802571475
https://doi.org/10.1080/10420150802571475