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Volume 24 Issue 4
Aug 2013
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Article Contents
Gelian Gong, Jibin Zhou, Weidong Sun, Hongyun Xu, Kemin Yang. A Novel Mass Spectrometry System for Helium-4 Measurement. Journal of Earth Science, 2013, 24(4): 663-666. doi: 10.1007/s12583-013-0359-5
Citation: Gelian Gong, Jibin Zhou, Weidong Sun, Hongyun Xu, Kemin Yang. A Novel Mass Spectrometry System for Helium-4 Measurement. Journal of Earth Science, 2013, 24(4): 663-666. doi: 10.1007/s12583-013-0359-5

A Novel Mass Spectrometry System for Helium-4 Measurement

doi: 10.1007/s12583-013-0359-5
Funds:

the National Natural Science Foundation of China 41272229

the National Natural Science Foundation of China 61272403

partly funding through the Chinese Academy of Large Equipment Development Program, and the National Basic Research Development Program of China 2009CB219401

More Information
  • Corresponding author: Gelian Gong: ggl@gig.ac.cn
  • Received Date: 03 Aug 2012
  • Accepted Date: 15 Dec 2012
  • Publish Date: 01 Aug 2013
  • Here we report a novel mass spectrometry measurement system (MSHE4) developed at State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences for quantifying helium-4 contents of geological mineral samples. The MSHE4 system consists of seven units, a high vacuum level generating unit, a gas purified unit, a laser heating unit, a pneumatic valve unit, an automatic control unit, a gas standard unit and a quadropole mass spectrometer unit. The unique software package, developed using LabVIEW for embedded system, allows users to control the full measurement sequences. Results from a test of the Durango apatite sample are used to illustrate the performance of the new MSHE4. We show that the constructed MSHE4 system is able to accurately measure helium-4 contents of apatite mineral, which in turn can be used to quantify the low temperature thermochronology of geological minerals in combination with measurements of uranium and thorium by LA-ICP-MS. The configuration of the MSHE4 system has following advantages: smaller volume of pipeline for gas purification, easier operation of graphic user interface for measurements, and more compact design of sample holder for single grain measurements. The separate step-heating unit can be mounted to the system smoothly. The MSHE4 system can be used for measurement of noble gases from minerals, and in turn thermochronology applications for geochemists.

     

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