Acquisition of the free precession signal and analysis of the proton spin lattice relaxation time of different aqueous solutions using the GLX Explorer

Authors

  • Gil Nonato C. Santos Physics Department, De La Salle University
  • Rondel Apelo Physics Department, De La Salle University
  • Vincent Ngo Physics Department, De La Salle University
  • Norberto Alcantara Physics Department, De La Salle University
  • Reuben V. Quiroga Physics Department, De La Salle University

Abstract

The study focused on the acquisition of a free precession signal of the different aqueous solutions and analyzed their corresponding Proton Spin Lattice Relaxation times. To monitor the free precession signal at 30 to 50 ms with a frequency of about 2,460 Hz, a Explorer GLX PASCO digital acquisition device was used to acquire real-time measurements to be stored and analyzed using the Data Studio Computing platform. From the acquired image, the maximum amplitude of the free precession signal was obtained to derive the magnetization graph and obtain its slope that will be used in to derive the Proton Spin lattice Relaxation time. Using the Fast Fourier Analysis of the Explorer, the study was able to determine the precession frequency which is between 2,476 to 2786 Hz which is within the indicated precession frequency. Results show that the free precession signal of the different aqueous solutions has a background noise caused by electrical devices within the vicinity of experimentation. The derived Proton Spin-Lattice Relaxation times for Ethanol is 3.988831 s, Methanol is 2.90195 s, Acetone is 12.34568 s, Distilled water is 6.435006 s and Tap water is 3.892565 s.

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Issue

Article ID

SPP-2006-PB-16

Section

Poster Session PB

Published

2006-10-25

How to Cite

[1]
GNC Santos, R Apelo, V Ngo, N Alcantara, and RV Quiroga, Acquisition of the free precession signal and analysis of the proton spin lattice relaxation time of different aqueous solutions using the GLX Explorer, Proceedings of the Samahang Pisika ng Pilipinas 24, SPP-2006-PB-16 (2006). URL: https://proceedings.spp-online.org/article/view/SPP-2006-PB-16.