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Isotopic abundance in atom trap trace analysis

Patent ·
OSTI ID:1127103
; ; ;

A method and system for detecting ratios and amounts of isotopes of noble gases. The method and system is constructed to be able to measure noble gas isotopes in water and ice, which helps reveal the geological age of the samples and understand their movements. The method and system uses a combination of a cooled discharge source, a beam collimator, a beam slower and magneto-optic trap with a laser to apply resonance frequency energy to the noble gas to be quenched and detected.

Research Organization:
ANL (Argonne National Laboratory (ANL), Argonne, IL (United States))
Sponsoring Organization:
USDOE
Assignee:
UChicago Argonne LLC (Chicago, IL)
Patent Number(s):
8,674,289
Application Number:
13/398,657
OSTI ID:
1127103
Country of Publication:
United States
Language:
English

References (7)

Radioactive krypton background evaluation using atom counting
  • McKinsey, D. N.; Orzel, C.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 545, Issue 1-2, p. 524-531 https://doi.org/10.1016/j.nima.2005.01.333
journal June 2005
Ultrasensitive Isotope Trace Analyses with a Magneto-Optical Trap journal November 1999
A Pulsed Source for Kr(5s[3/2] 1 ) Resonance State Atoms Using Two-Photon-Driven Amplified Spontaneous Emission:  Measurement of Quenching Rate Constants journal May 1999
An atom trap system for practical 81Kr dating journal September 2004
An efficient magneto-optical trap of metastable krypton atoms journal December 2010
High Sensitivity Mass Spectrometer for Noble Gas Analysis journal November 1956
An atom counter for measuring 81Kr and 85Kr in environmental samples journal August 2012

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY