Visual Evidence of Magnetic Shielding With the PPS-Flex Hall Thruster

2014 ◽  
Vol 42 (10) ◽  
pp. 2668-2669 ◽  
Author(s):  
Stephane Mazouffre ◽  
Julien Vaudolon ◽  
Guillaume Largeau ◽  
Carole Henaux ◽  
Alberto Rossi ◽  
...  
Keyword(s):  
Hall Thruster ◽  
Magnetic Shielding ◽  
Visual Evidence

Magnetic shielding of walls from the unmagnetized ion beam in a Hall thruster

2013 ◽  
Vol 102 (2) ◽  
pp. 023509 ◽  
Author(s):  
Ioannis G. Mikellides ◽  
Ira Katz ◽  
Richard R. Hofer ◽  
Dan M. Goebel
Keyword(s):  
Ion Beam ◽  
Hall Thruster ◽  
Magnetic Shielding

Magnetic Shielding of the Acceleration Channel Walls in a Long-Life Hall Thruster

2010 ◽  
Author(s):  
Ioannis Mikellides ◽  
Ira Katz ◽  
Richard Hofer ◽  
Dan Goebel ◽  
Kristi de Grys ◽  
...  
Keyword(s):  
Hall Thruster ◽  
Magnetic Shielding ◽  
Acceleration Channel ◽  
Long Life

Magnetic shielding of a laboratory Hall thruster. I. Theory and validation

2014 ◽  
Vol 115 (4) ◽  
pp. 043303 ◽  
Author(s):  
Ioannis G. Mikellides ◽  
Ira Katz ◽  
Richard R. Hofer ◽  
Dan M. Goebel
Keyword(s):  
Hall Thruster ◽  
Magnetic Shielding

Magnetic shielding of a laboratory Hall thruster. II. Experiments

2014 ◽  
Vol 115 (4) ◽  
pp. 043304 ◽  
Author(s):  
Richard R. Hofer ◽  
Dan M. Goebel ◽  
Ioannis G. Mikellides ◽  
Ira Katz
Keyword(s):  
Hall Thruster ◽  
Magnetic Shielding

Quantitative Radioisotope Measurement of Duodenogastric Reflux in Patients with Ulcer or Gastrectomized for Ulcer

1985 ◽  
Vol 24 (03) ◽  
pp. 107-110
Author(s):  
M. Pääkkönen ◽  
S. Aukee ◽  
K. Korhonen ◽  
A. Pääkkönen ◽  
E. Länsimies ◽  
...  
Keyword(s):  
Gamma Camera ◽  
Background Activity ◽  
Bile Reflux ◽  
Duodenogastric Reflux ◽  
Upper Limit ◽  
Visual Evidence ◽  
Biochemical Measurement

SummaryIn this work the duodenogastric reflux was quantified as the amount of radioactivity entering the stomach after an i.v. administration of 99mmTc-HIDA in ulcer patients and in patients who had undergone BI gastrectomy. The results were compared with visual evidence of gastric activity in the gamma camera images and biochemical determination of gastric bile reflux. The method is useful in quantifying the reflux if the activity is above the background activity. It allows the determination of an upper limit for the reflux when the reflux is evident visually. Only two or three images are needed for the quantitation. No correlation was found between biochemical measurement of fasting bile reflux in the stomach and radioisotopic quantification.

A performance study of a low power Hall thruster

1997 ◽  
Author(s):  
W. Hargus, Jr. ◽  
R. Cedolin ◽  
N. Meezan ◽  
M. Cappelli ◽  
W. Hargus, Jr. ◽  
...  
Keyword(s):  
Low Power ◽  
Hall Thruster ◽  
Performance Study ◽  
A Performance

200W Hall Thruster Discharge Oscillations with Xe and Kr Propellant

2011 ◽  
Author(s):  
David Liu ◽  
Richard Huffman ◽  
Richard Branam ◽  
William Hargus
Keyword(s):  
Hall Thruster
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