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优化波纳球谱仪设计,采用贝叶斯式方法.

Ngoc-Quynh Nguyen1, Tadahiro Kurosawa2, Ngoc-Thiem Le1

  • 1Institute for Nuclear Science and Technology, 179 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Viet Nam.

Radiation protection dosimetry
|February 5, 2025
PubMed
概括

用贝叶斯方法优化波纳球谱仪 (BSS) 为中子测量提供了两个不同的配置. 一种配置最大限度地提高了中子流动频谱的准确性,而另一种配置则有效地估计了剂量等值.

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NMR Spectrometers: Resolution and Error Correction01:14

NMR Spectrometers: Resolution and Error Correction

When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...
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