A Cold Electron Source Suitable for Mass Spectrometry

1971 ◽  
Vol 42 (1) ◽  
pp. 114-116 ◽  
Author(s):  
J. F. Sprouse ◽  
K. M. Jackson ◽  
T. A. Raju ◽  
M. K. Testerman
Keyword(s):  
Mass Spectrometry ◽  
Electron Source ◽  
Cold Electron ◽  
Cold Electron Source

An ionization gauge with a cold electron source for an extremely high vacuum

Vacuum ◽  
1993 ◽  
Vol 44 (5-7) ◽  
pp. 595-597 ◽  
Author(s):  
C Oshima ◽  
T Satoh ◽  
A Otuka
Keyword(s):  
High Vacuum ◽  
Electron Source ◽  
Cold Electron ◽  
Ionization Gauge ◽  
Cold Electron Source

A Shelved Structure for the Support of An Electron Optical Column

1970 ◽  
Vol 28 ◽  
pp. 366-367
Author(s):  
P.H. McLaughlin
Keyword(s):  
Electron Source ◽  
Floating Platform ◽  
Supporting Structure

A shelved structure for the support of an electron optical column affords advantages both to the designer and the user. A lens may be removed for cleaning for example, without demounting the remaining lenses. A custom device for another example, may be placed on a shelf, substituting for the standard lens perhaps so that some specialized research may be undertaken. Especially advantageous is a shelved arrangement if the column assembly is designed to hang from a supporting structure such as a gas borne floating platform, as is the case with the system described below.As shown on the schematic, a floating platform (I) supports the electron source apparatus (2) and a U-shaped column support shelf (3). The column support shelf acts as a key for locating and supporting three struts (4) which with nuts (5) support the condenser shelf (6), the objective shelf (7), the upper projector shelf (8), and the lower projector shelf (9).

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