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Updated: Jun 4, 2025

Isolation of Quartz Grains for Optically Stimulated Luminescence OSL Dating of Quaternary Sediments for Paleoenvironmental Research
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大几何高分辨率二次离子质谱仪 (HR-SIMS) 的性能优化,用于高精度测量氧同位素组成 (δ18O) 和中U-Pb地球时间学

Deeksha Khandelwal1, Pankaj Kumar1, P V Kumar1

  • 1National Geochronology Facility, Inter-University Accelerator Centre (IUAC), New Delhi, India.

Journal of mass spectrometry : JMS
|December 23, 2024
PubMed
概括

美国国家地质时代学设施 (NGF) 的新型高分辨率二次离子质谱仪 (HR-SIMS) 显示出精确的氧同位素和U-Pb地质时代学测量在中表现出色. 该仪器被优化为高空间分辨率和灵敏度,这对于地质年代学应用至关重要.

关键词:
人权高专-SIMSS在UPb约会.测量同位素比率的测量方法精确的精确度可以说是精确的.齐尔康 (Zircon) 是一种的材料.

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The resolution of a mass spectrometer depends on the efficiency of separating ions with different ion masses. The mass of an atom is approximated to the sum of the masses of protons and neutrons inside, considering the masses of protons and neutrons as equal. However, the masses of the proton (1.6726 × 10−24 g) and neutron (1.6749 × 10−24 g) are not truly equal. There is a minor error in the expression of atomic masses relative to the simplest atom of hydrogen. For...
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