skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Small system for tritium accelerator mass spectrometry

Abstract

Apparatus for ionizing and accelerating a sample containing isotopes of hydrogen and detecting the ratios of hydrogen isotopes contained in the sample is disclosed. An ion source generates a substantially linear ion beam including ions of tritium from the sample. A radio-frequency quadrupole accelerator is directly coupled to and axially aligned with the source at an angle of substantially zero degrees. The accelerator accelerates species of the sample having different mass to different energy levels along the same axis as the ion beam. A spectrometer is used to detect the concentration of tritium ions in the sample. In one form of the invention, an energy loss spectrometer is used which includes a foil to block the passage of hydrogen, deuterium and .sup.3 He ions, and a surface barrier or scintillation detector to detect the concentration of tritium ions. In another form of the invention, a combined momentum/energy loss spectrometer is used which includes a magnet to separate the ion beams, with Faraday cups to measure the hydrogen and deuterium and a surface barrier or scintillation detector for the tritium ions.

Inventors:
 [1];  [1]
  1. Livermore, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
868673
Patent Number(s):
5189302
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
tritium; accelerator; mass; spectrometry; apparatus; ionizing; accelerating; sample; containing; isotopes; hydrogen; detecting; ratios; contained; disclosed; source; generates; substantially; linear; beam; including; radio-frequency; quadrupole; directly; coupled; axially; aligned; angle; zero; degrees; accelerates; species; energy; levels; axis; spectrometer; detect; concentration; form; loss; foil; block; passage; deuterium; surface; barrier; scintillation; detector; combined; momentum; magnet; separate; beams; faraday; cups; measure; substantially linear; hydrogen isotope; axially aligned; scintillation detector; sample containing; energy level; faraday cup; mass spectrometry; hydrogen isotopes; energy levels; source generates; substantially zero; frequency quadrupole; directly coupled; surface barrier; energy loss; source generate; axially align; /250/

Citation Formats

Roberts, Mark L, and Davis, Jay C. Small system for tritium accelerator mass spectrometry. United States: N. p., 1993. Web.
Roberts, Mark L, & Davis, Jay C. Small system for tritium accelerator mass spectrometry. United States.
Roberts, Mark L, and Davis, Jay C. Fri . "Small system for tritium accelerator mass spectrometry". United States. https://www.osti.gov/servlets/purl/868673.
@article{osti_868673,
title = {Small system for tritium accelerator mass spectrometry},
author = {Roberts, Mark L and Davis, Jay C},
abstractNote = {Apparatus for ionizing and accelerating a sample containing isotopes of hydrogen and detecting the ratios of hydrogen isotopes contained in the sample is disclosed. An ion source generates a substantially linear ion beam including ions of tritium from the sample. A radio-frequency quadrupole accelerator is directly coupled to and axially aligned with the source at an angle of substantially zero degrees. The accelerator accelerates species of the sample having different mass to different energy levels along the same axis as the ion beam. A spectrometer is used to detect the concentration of tritium ions in the sample. In one form of the invention, an energy loss spectrometer is used which includes a foil to block the passage of hydrogen, deuterium and .sup.3 He ions, and a surface barrier or scintillation detector to detect the concentration of tritium ions. In another form of the invention, a combined momentum/energy loss spectrometer is used which includes a magnet to separate the ion beams, with Faraday cups to measure the hydrogen and deuterium and a surface barrier or scintillation detector for the tritium ions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

Patent:

Save / Share: