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Compact hydrogen/helium isotope mass spectrometer

Patent ·
OSTI ID:870562
 [1];  [1];  [2]
  1. Los Alamos, NM
  2. Morgantown, WV
+ Show Author Affiliations

The compact hydrogen and helium isotope mass spectrometer of the present invention combines low mass-resolution ion mass spectrometry and beam-foil interaction technology to unambiguously detect and quantify deuterium (D), tritium (T), hydrogen molecule (H.sub.2, HD, D.sub.2, HT, DT, and T.sub.2), .sup.3 He, and .sup.4 He concentrations and concentration variations. The spectrometer provides real-time, high sensitivity, and high accuracy measurements. Currently, no fieldable D or molecular speciation detectors exist. Furthermore, the present spectrometer has a significant advantage over traditional T detectors: no confusion of the measurements by other beta-emitters, and complete separation of atomic and molecular species of equivalent atomic mass (e.g., HD and .sup.3 He).

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM
DOE Contract Number:
W-7405-ENG-36
Assignee:
Regents of University of California (Alameda, CA)
Patent Number(s):
US 5545894
OSTI ID:
870562
Country of Publication:
United States
Language:
English

References (2)

Charged Particle Transmission through Cylindrical Plate Electrostatic Analyzers journal March 1968
Ultrathin foils used for low-energy neutral atom imaging of the terrestrial magnetosphere journal January 1993

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