scholarly journals Multipactoring zone map of an rf input coupler and its application to high beam current storage rings

Author(s):  
Tetsuo Abe ◽  
Tatsuya Kageyama ◽  
Kazunori Akai ◽  
Kiyokazu Ebihara ◽  
Hiroshi Sakai ◽  
...  
1989 ◽  
Vol 60 (7) ◽  
pp. 1630-1635 ◽  
Author(s):  
H. Takada ◽  
Y. Tsutsui ◽  
T. Tomimasu ◽  
S. Sugiyama

2003 ◽  
Vol 74 (7) ◽  
pp. 3297-3304 ◽  
Author(s):  
Y. Suetsugu ◽  
K. Shibata ◽  
T. Sanami ◽  
T. Kageyama ◽  
Y. Takeuchi

1996 ◽  
Vol 06 (01n02) ◽  
pp. 155-166 ◽  
Author(s):  
M. KOHNO ◽  
K. YOSHIDA ◽  
K. MORITANI ◽  
K. NORIZAWA ◽  
M. NAITO ◽  
...  

Trace elements in ancient Chinese ink, ancient Chinese paper of sutras, ancient Japanese paper of manuscripts, modem Japanese paper and some plants were analyzed by PIXE. Part of these samples were carbonized at 400°C in vacuum of several torrs. These carbonized biological samples were able to resist very high current of 2 MeV He + (500 nA/mm 2 on target) for more than 30 minutes. The observation indicates that the carbonized samples save the measuring time by using high beam current. But mercury and sulfur contained in red Chinese ink on the paper were lost through the carbonization and lead in the same sample was lost by heating up during the measurement on condition that it was irradiated by 2 MeV He + (50 nA/mm 2 to 230 nA/mm 2). A small part of iron was gradually lost on the same condition. Under 230 nA/mm 2, a small portion of calcium was lost but no portion of chromium was lost.


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