An enhanced plasma injection method for triggering a 10 cm-magnitude high-pressure SF6 gas gap for a megavolt ultrafast bypass switch

2021 ◽  
Vol 92 (10) ◽  
pp. 104701
Author(s):  
Xiaoang Li ◽  
Gan Gao ◽  
Pan Jiang ◽  
Ningbo Zhang ◽  
Zhibing Li ◽  
...  
Keyword(s):  
High Pressure ◽  
Injection Method ◽  
Plasma Injection ◽  
Gas Gap

scholarly journals Scheme for direct plasma injection into an RFQ linac

2002 ◽  
Vol 20 (3) ◽  
pp. 451-454 ◽  
Author(s):  
M. OKAMURA ◽  
T. KATAYAMA ◽  
R.A. JAMESON ◽  
T. TAKEUCHI ◽  
T. HATTORI ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Laser Plasma ◽  
Ion Source ◽  
Laser Ion Source ◽  
Injection Method ◽  
Injection Scheme ◽  
Plasma Injection

A new efficient injection method from a laser ion source to a Radio Frequency Quadropole (RFQ) was proposed and is being tested in RIKEN, Japan. A laser plasma is induced just before the entrance of the RFQ and is injected directly into the RFQ channel. Using an existing RFQ, first verification tests have been completed successfully. Finally, the preliminary specifications for the first RFQ dedicated to the new injection scheme are presented.

Measurement of the laser plasma properties of the direct plasma injection method to the RFQ LINAC on the RIKEN laser ion source

2002 ◽  
Vol 73 (2) ◽  
pp. 767-769 ◽  
Author(s):  
T. Takeuchi ◽  
T. Katayama ◽  
T. Nakagawa ◽  
M. Okamura ◽  
K. Yano ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Ion Source ◽  
Laser Ion Source ◽  
Plasma Properties ◽  
Injection Method ◽  
Plasma Injection

Investigation of Gaseous Elemental Mercury Oxidation by Non-thermal Plasma Injection Method

2017 ◽  
Vol 31 (10) ◽  
pp. 11013-11018 ◽  
Author(s):  
Jinjing Luo ◽  
Qiang Niu ◽  
Youxian Xia ◽  
Yinan Cao ◽  
Rupeng Du ◽  
...  
Keyword(s):  
Thermal Plasma ◽  
Elemental Mercury ◽  
Mercury Oxidation ◽  
Injection Method ◽  
Gaseous Elemental Mercury ◽  
Plasma Injection ◽  
Non Thermal Plasma

High-pressure freezing of cells in suspension for low-voltage scanning electron microscopy (LVSEM)

1991 ◽  
Vol 49 ◽  
pp. 64-65
Author(s):  
Marek Malecki ◽  
James Pawley ◽  
Hans Ris
Keyword(s):  
Electron Microscopy ◽  
High Pressure ◽  
Low Voltage ◽  
Culture Media ◽  
Cell Structure ◽  
Freeze Substitution ◽  
Ice Crystal ◽  
High Pressure Freezing ◽  
Cell Culture Media ◽  
Voltage Scanning

The ultrastructure of cells suspended in physiological fluids or cell culture media can only be studied if the living processes are stopped while the cells remain in suspension. Attachment of living cells to carrier surfaces to facilitate further processing for electron microscopy produces a rapid reorganization of cell structure eradicating most traces of the structures present when the cells were in suspension. The structure of cells in suspension can be immobilized by either chemical fixation or, much faster, by rapid freezing (cryo-immobilization). The fixation speed is particularly important in studies of cell surface reorganization over time. High pressure freezing provides conditions where specimens up to 500μm thick can be frozen in milliseconds without ice crystal damage. This volume is sufficient for cells to remain in suspension until frozen. However, special procedures are needed to assure that the unattached cells are not lost during subsequent processing for LVSEM or HVEM using freeze-substitution or freeze drying. We recently developed such a procedure.

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