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Using Nitrogen 14 Nuclear Quadrupole Resonance And Electric Field Gradient Information For The Study Of Radiation Effects
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Book Synopsis Using Nitrogen-14 Nuclear Quadrupole Resonance and Electric Field Gradient Information for the Study of Radiation Effects by : Louis Henry Iselin
Download or read book Using Nitrogen-14 Nuclear Quadrupole Resonance and Electric Field Gradient Information for the Study of Radiation Effects written by Louis Henry Iselin and published by . This book was released on 1995 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Using Nitrogen-14 Nuclear Quadrupole Resonance and Electric Field Gradient Information for the Study of Radiation Effects by :
Download or read book Using Nitrogen-14 Nuclear Quadrupole Resonance and Electric Field Gradient Information for the Study of Radiation Effects written by and published by . This book was released on 1995 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen-14 nuclear quadrupole resonance (NQR) was used in an attempt to detect the effects of ionizing radiation on organic material. Previously reported resonances for urea were detected at 2,913.32 ± 0.01 kHz and 2,347.88 ± 0.08 kHz with associated T2* values 780 ± 20?s and 523 ± 24?s, respectively. The previously unreported? line for urea-d4 was detected at 2,381 ± 0.04 Khz and used to determine accurately for the first time the values for the nuclear quadrupole coupling constant? (3,548.74 ± 0.03 kHz) and the asymmetry parameter? (0.31571 ± 0.00007) for urea-d4. The inverse linewidth parameter T2* for?+ was measured at 928 ± 23?s and for?− at 721 ± 12?s. Townes and Dailey analysis was performed and urea-d4 exhibits a 0.004 increase in lone pair electronic density and a slight decrease in N-H bond electronic density, as compared to urea, probably due to the mass difference. A relationship is proposed, referred to as NQR linewidth analysis, between the dynamic spin relaxation times T2 and T2* and the widths of the distributions of the NQR parameters. Linewidth analysis is presented as a tool for possible use in future NQR work in all area, not just radiation effects. This relationship is tested using sodium nitrite T2 and T2* values for?− and?− as a function of temperature.
Book Synopsis An Analytical Method for Estimating the {sup 14}N Nuclear Quadrupole Resonance Parameters of Organic Compounds with Complex Free Induction Decays for Radiation Effects Studies by :
Download or read book An Analytical Method for Estimating the {sup 14}N Nuclear Quadrupole Resonance Parameters of Organic Compounds with Complex Free Induction Decays for Radiation Effects Studies written by and published by . This book was released on 1992 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of 14N nuclear quadrupole resonance (NQR) as a radiation dosimetry tool has only recently been explored. An analytical method for analyzing 14N NQR complex free induction decays is presented with the background necessary to conduct pulsed NQR experiments. The 14N NQR energy levels and possible transitions are derived in step-by-step detail. The components of a pulsed NQR spectrometer are discussed along with the experimental techniques for conducting radiation effects experiments using the spectrometer. Three data analysis techniques -- the power spectral density Fourier transform, state space singular value decomposition (HSVD), and nonlinear curve fitting (using the downhill simplex method of global optimization and the Levenberg-Marquart method) -- are explained. These three techniques are integrated into an analytical method which uses these numerical techniques in this order to determine the physical NQR parameters. Sample data sets of urea and guanidine sulfate data are used to demonstrate how these methods can be employed to analyze both simple and complex free induction decays. By determining baseline values for biologically significant organics, radiation effects on the NQR parameters can be studied to provide a link between current radiation dosimetry techniques and the biological effects of radiation.
Book Synopsis Advances in Nuclear Quadrupole Resonance by : John Alec Sydney Smith
Download or read book Advances in Nuclear Quadrupole Resonance written by John Alec Sydney Smith and published by John Wiley & Sons. This book was released on 1983-09 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nitrogen-14 Nuclear Quadrupole Resonance Study of Organic Molecular Crystals by : Saligrama N. Subbarao
Download or read book Nitrogen-14 Nuclear Quadrupole Resonance Study of Organic Molecular Crystals written by Saligrama N. Subbarao and published by . This book was released on 1978 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Analytical Method for Estimating the 14N Nuclear Quadrupole Resonance Parameters of Organic Compounds with Complex Free Induction Decays for Radiation Effects Studies by :
Download or read book An Analytical Method for Estimating the 14N Nuclear Quadrupole Resonance Parameters of Organic Compounds with Complex Free Induction Decays for Radiation Effects Studies written by and published by . This book was released on 1992 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of 14N nuclear quadrupole resonance (NQR) as a radiation dosimetry tool has only recently been explored. An analytical method for analyzing 14N NQR complex free induction decays is presented with the background necessary to conduct pulsed NQR experiments. The 14N NQR energy levels and possible transitions are derived in step-by-step detail. The components of a pulsed NQR spectrometer are discussed along with the experimental techniques for conducting radiation effects experiments using the spectrometer. Three data analysis techniques -- the power spectral density Fourier transform, state space singular value decomposition (HSVD), and nonlinear curve fitting (using the downhill simplex method of global optimization and the Levenberg-Marquart method) -- are explained. These three techniques are integrated into an analytical method which uses these numerical techniques in this order to determine the physical NQR parameters. Sample data sets of urea and guanidine sulfate data are used to demonstrate how these methods can be employed to analyze both simple and complex free induction decays. By determining baseline values for biologically significant organics, radiation effects on the NQR parameters can be studied to provide a link between current radiation dosimetry techniques and the biological effects of radiation.
Book Synopsis Nitrogen-14 Nuclear Quadrupole Resonance Study of Molecular Compounds by : Nung Soo Kim
Download or read book Nitrogen-14 Nuclear Quadrupole Resonance Study of Molecular Compounds written by Nung Soo Kim and published by . This book was released on 1978 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975-08 with total page 958 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1984 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1999 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1971 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1989 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nitrogen-14 Nuclear Quadrupole Resonance by : William C. Kinney
Download or read book Nitrogen-14 Nuclear Quadrupole Resonance written by William C. Kinney and published by . This book was released on 1988 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1988 with total page 1354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.