Resolution test of an electric prism—oblique incidence magnet double focusing mass spectrometer

1986 ◽  
Vol 74 (1) ◽  
pp. 129-131 ◽  
Author(s):  
D. Ioanoviciu ◽  
C. Cuna
Keyword(s):  
Mass Spectrometer ◽  
Oblique Incidence ◽  
Double Focusing

A novel double-focusing time-of-flight mass spectrometer for absolute recoil ion cross sections measurements

2016 ◽  
Vol 87 (8) ◽  
pp. 083112 ◽  
Author(s):  
L. Sigaud ◽  
V. L. B. de Jesus ◽  
Natalia Ferreira ◽  
E. C. Montenegro
Keyword(s):  
Mass Spectrometer ◽  
Cross Sections ◽  
Time Of Flight ◽  
Flight Mass Spectrometer ◽  
Double Focusing

scholarly journals A comparison between the two lobes of comet 67P/Churyumov–Gerasimenko based on D/H ratios in H2O measured with the Rosetta/ROSINA DFMS

2019 ◽  
Vol 489 (4) ◽  
pp. 4734-4740 ◽  
Author(s):  
Isaac R H G Schroeder ◽  
Kathrin Altwegg ◽  
Hans Balsiger ◽  
Jean-Jacques Berthelier ◽  
Michael R Combi ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
European Space Agency ◽  
Cometary Nucleus ◽  
The Other ◽  
Appreciable Difference ◽  
Space Agency ◽  
Close Proximity ◽  
Double Focusing ◽  
Comet 67P

ABSTRACT The nucleus of the Jupiter-family comet 67P/Churyumov–Gerasimenko was discovered to be bi-lobate in shape when the European Space Agency spacecraft Rosetta first approached it in 2014 July. The bi-lobate structure of the cometary nucleus has led to much discussion regarding the possible manner of its formation and on how the composition of each lobe might compare with that of the other. During its two-year-long mission from 2014 to 2016, Rosetta remained in close proximity to 67P/Churyumov–Gerasimenko, studying its coma and nucleus in situ. Based on lobe-specific measurements of HDO and H2O performed with the ROSINA Double Focusing Mass Spectrometer (DFMS) on board Rosetta, the deuterium-to-hydrogen (D/H) ratios in water from the two lobes can be compared. No appreciable difference was observed, suggesting that both lobes formed in the same region and are homogeneous in their D/H ratios.

A simple double-focusing mass spectrometer

1978 ◽  
Vol 26 (3) ◽  
pp. 237-250 ◽  
Author(s):  
Shunroku Taya ◽  
Ichiro Kanomata ◽  
Hiroshi Hirose ◽  
Tamotsu Noda ◽  
Hisashi Matsuda
Keyword(s):  
Mass Spectrometer ◽  
Double Focusing
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