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A Mass-Spectrometer-Tube-Unit Prealigning and Positioning Jig for the Consolidated 21-102 Spectrometer

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Since the resolution and sensitivity of a mass spectrometer are affected by the position of the mass spectrometer tube unit (hereinafter referred to by the term MSTU) in the magnet gap, the exact alignment of this unit is critical. When the MSTU of the 21-102 Consolidated mass spectrometer is properly aligned in the magnetic field, the circular analyzer tube lies in a plane parallel to and equidistant from the magnet pole faces, and concentric with their circle. The usual procedure for placing and aligning the MSTU in the magnet gap is described elsewhere (1) and it suffices here to state that the process may at times be both time consuming and tedious.

Document Type: Research Article


Affiliations: Division of Chemistry and the Metal Model Shop, Naval Medical Research Institute, National Naval Medical Center, Bethesda, Md.

Publication date: August 1, 1953

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