Broadband microwave characteristics of a novel coaxial gridded hollow cathode argon plasma

2016 ◽  
Vol 87 (8) ◽  
pp. 083506 ◽  
Author(s):  
Ruilin Gao ◽  
Chengxun Yuan ◽  
Hui Li ◽  
Jieshu Jia ◽  
Zhong-Xiang Zhou ◽  
...  
1972 ◽  
Vol 27 (10) ◽  
pp. 1425-1433 ◽  
Author(s):  
F. Howorka ◽  
M. Pähl

Abstract The negative glow plasma of a cylindrical hollow cathode dc discharge (0.05 - 1 Torr Argon, 1-30 mA) is investigated as to the position of the glow edge, the axial dependence of the cathode current density, the axial and radial potential distributions, the density and energy of electrons (from Langmuir probe measurements) as dependent on pressure, discharge current and position, etc. It is found that two groups of electrons exist whose energies are < 0.5 eV ~ 3 eV and the ratio of their denisties being 3 up to 20. A phenomenological explanation is given for the relatively high denisty of the fast group, The results are compared with those of other auhors concerning hollow-cathode and linear discharges.


2016 ◽  
Vol 23 (8) ◽  
pp. 083525 ◽  
Author(s):  
Ruilin Gao ◽  
Chengxun Yuan ◽  
Hui Li ◽  
Jieshu Jia ◽  
Zhong-Xiang Zhou ◽  
...  

Vacuum ◽  
2002 ◽  
Vol 65 (3-4) ◽  
pp. 463-468 ◽  
Author(s):  
Y. Liu ◽  
H. Qi ◽  
T. Iwao ◽  
H. Shindo ◽  
T. Inaba
Keyword(s):  

VASA ◽  
2008 ◽  
Vol 37 (3) ◽  
pp. 289-292 ◽  
Author(s):  
Katsinelos ◽  
Chatzimavroudis ◽  
Katsinelos ◽  
Panagiotopoulou ◽  
Kotakidou ◽  
...  

Gastric antral vascular ectasia (GAVE) is an overt or occult source of gastrointestinal bleeding. Despite several therapeutic approaches have been successfully tested for preventing chronic bleeding, some patients present recurrence of GAVE lesions. To the best of our knowledge, we report the first case, of a 86-year-old woman who presented severe iron-deficiency anemia due to GAVE and showed recurrence of GAVE lesion despite the intensive argon plasma coagulation treatment. We performed endoscopic mucosal resection of bleeding GAVE with resolution of anemia.


1979 ◽  
Vol 40 (C7) ◽  
pp. C7-229-C7-230
Author(s):  
N. N. Rykalin ◽  
A. V. Nikolaev ◽  
A. P. Borzhov

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