Accession Number:

AD0729788

Title:

A Three-Dimensional Quadrupolar Mass Analyzer. II. Operational Characteristics.

Descriptive Note:

Technical rept. Jun 69-Dec 70,

Corporate Author:

EDGEWOOD ARSENAL MD

Personal Author(s):

Report Date:

1971-09-01

Pagination or Media Count:

27.0

Abstract:

The properties of a 3DQ mass analyzer constructed are described. Ion-generation and withdrawal pulses are made coherent with the radio frequency rf driving voltage. This allows the rf phase dependence of these events to be measured in addition, lifetimes of stored ions can be conveniently measured. Representative results of lifetime studies on N2 at various background pressures and rf frequencies are given. The maximum intensity and the area of the N2 peak are observed as functions of the dc-to-rf voltage ratio, rf frequency, repetition rate of the ionization withdrawal sequence, background pressure, and storage time. Author

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE