Dynamic Measurement of Ultramicro Amounts of Gases with Ionization Gauge.
Abstract
A nude ionization gauge adjacent to the closed ion-source chamber of a quadrupole mass spectrometer is a sensitive detector of the total amount of gas introduced for dynamic analysis. Linear relations between the amount of gas and the area of the ionization gauge pulse record were found for 8 gases. For relatively unreactive gases, linearity extended to the smallest samples that could be detected, approximately 10 to the -10 power atm cc. Validity of the dynamic method of analysis was established by demonstrating that the same response was obtained for pulsed and for continuous sample introductions from calibrated leak sources of each of the 8 gases.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 16, 1983
- Accession Number
- ADA175994
Entities
People
- Donald E. Gilmartin
- Wendell M. Graven
Organizations
- The Aerospace Corporation