MASS SPECTROMETER IONIZATION CHAMBER
Conventional ion sources for sector-field detection direction focusing mass spectrometers have generally been patterned after those of Nier. In 1954 Schaeffer described an ion source in which the iron pole pieces of the electron beam alignment magnet were integral with the ionization chamber. Among the advantages cited were ease in mechanical alignment, better homogeneity of the magnetic field, and a greatly strengthened magnetic field. This note describes two models of an ion source in which both the magnets on appropriate pole pieces are integral with the ionization chamber. The ion source is a part of a 40 deg 9 in. focusing mass spectrometer used for isotopic ratio determinations. (A.C.)
- Research Organization:
- Humble Oil & Refining Co., Houston, Texas
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-12-002404
- OSTI ID:
- 4324460
- Journal Information:
- Rev. Sci. Instr., Journal Name: Rev. Sci. Instr. Vol. Vol: 28
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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