ISSN:
1476-4687
Quelle:
Nature Archives 1869 - 2009
Thema:
Biologie
,
Chemie und Pharmazie
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
Notizen:
[Auszug] (i) A quadrupole mass spectrometer surrounded by a liquid helium cryopump which scanned the positive ion mass spectrum 10 to 140 a.m.u. in periods of 1.76 s. Positive ions were drawn to a circular electrode biased to 15 V with respect to the rocket body, and some of the ions passed through a hole ...
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1038/235215a0
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