ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] At low pressures (〈 10~5 torr), previous single collision experiments1'2 indicated that the main negative ion species formed in SF6 by electron collisions were SF6~ and SFg. In addition, the negative ion currents were observed to depend on pressure rather than on the square of the pressure, ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/227702a0
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