Using Nitrogen-14 Nuclear Quadrupole Resonance and Electric Field Gradient Information for the Study of Radiation Effects

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Total Pages : 360 pages
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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:

Using Nitrogen-14 Nuclear Quadrupole Resonance and Electric Field Gradient Information for the Study of Radiation Effects

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ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.:/5 (16 download)

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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.

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

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Total Pages : 110 pages
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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.

Advances in Nuclear Quadrupole Resonance

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Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.E/5 ( download)

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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:

Nitrogen-14 Nuclear Quadrupole Resonance Study of Organic Molecular Crystals

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ISBN 13 :
Total Pages : 262 pages
Book Rating : 4.:/5 (473 download)

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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:

An Analytical Method for Estimating the 14N Nuclear Quadrupole Resonance Parameters of Organic Compounds with Complex Free Induction Decays for Radiation Effects Studies

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Total Pages : 110 pages
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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.

Nitrogen-14 Nuclear Quadrupole Resonance Study of Molecular Compounds

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ISBN 13 :
Total Pages : 268 pages
Book Rating : 4.:/5 (472 download)

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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:

Nuclear Science Abstracts

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ISBN 13 :
Total Pages : 958 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Nuclear Science Abstracts by :

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:

ERDA Energy Research Abstracts

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ISBN 13 :
Total Pages : 818 pages
Book Rating : 4.3/5 (91 download)

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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:

Energy Research Abstracts

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ISBN 13 :
Total Pages : 816 pages
Book Rating : 4.3/5 (129 download)

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Book Synopsis Energy Research Abstracts by :

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:

Dissertation Abstracts International

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Total Pages : 604 pages
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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:

Scientific and Technical Aerospace Reports

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Total Pages : 300 pages
Book Rating : 4.:/5 (31 download)

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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:

ERDA Energy Research Abstracts

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Total Pages : 848 pages
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Book Synopsis ERDA Energy Research Abstracts by :

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:

Nuclear Science Abstracts

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Total Pages : 1162 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Nuclear Science Abstracts by :

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:

Nitrogen-14 Nuclear Quadrupole Resonance

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Total Pages : 62 pages
Book Rating : 4.:/5 (77 download)

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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:

Physics Briefs

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Total Pages : 1354 pages
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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:

Energy Research Abstracts

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Total Pages : 758 pages
Book Rating : 4.3/5 (129 download)

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Book Synopsis Energy Research Abstracts by :

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.