Published March 2017 | Version v1
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NMR of short-lived β-emitter 12N implanted in water and its new applicability

Creators

  • 1. Osaka Univ., Dept. of Physics, Toyonaka, Osaka (Japan)

Description

The beta-detected nuclear magnetic resonance (β-NMR) in liquid H2O has been observed using a short-lived β-ray emitter 12N(Iπ=1+, T1/2=11 ms). A nuclear spin polarized 12N beam with an energy of about 20 MeV/nucleon was implanted into an enclosed water sample. About 50% of implanted 12N ions maintained nuclear polarization and exhibited a β-NMR spectrum. Thus the chemical shift of 12N in H2O relative to 12N in Pt was deduced to be -(3.6±0.5)x102 ppm. The longitudinal spin relaxation rate 1/T1 has exhibited external magnetic field dependence, implying the relatively slow motion for H2O molecules with the correlation time in the order of ∼10-7 s. (author)

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Part of:
Proceedings of the specialists' meeting on 'nuclear spectroscopy and condensed matter physics using short-lived nuclei'

Additional details

Additional titles

Original title (English)
#5E73##6210#28#5E74##5EA6##300C##77ED##5BFF##547D#RI#3092##7528##3044##305F##6838##5206##5149##3068##6838##7269##6027##7814##7A76#III#300D#

Identifiers

URL
https://www.rri.kyoto-u.ac.jp/PUB/report/04_kr/img/ekr018.pdf;

Publishing Information

Imprint Title
Proceedings of the specialists' meeting on 'nuclear spectroscopy and condensed matter physics using short-lived nuclei'
Imprint Pagination
[97 p.]
Journal Page Range
p. 29-35
Report number
KURRI-EKR--18

Conference

Title
Specialists' meeting on nuclear spectroscopy and condensed matter physics using short-lived nuclei
Dates
20-21 Dec 2016
Place
Kumatori, Osaka (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
49089659
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CHEMICAL SHIFT; ION IMPLANTATION; LIQUIDS; MAGNETIC FIELDS; MOTION; NITROGEN 12; NMR SPECTRA; NUCLEAR MAGNETIC RESONANCE; POLARIZED BEAMS; SPECTRAL SHIFT; SPIN ORIENTATION; SPIN-LATTICE RELAXATION; WATER
Descriptors DEC
BEAMS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; FLUIDS; HYDROGEN COMPOUNDS; ISOTOPES; LIGHT NUCLEI; MAGNETIC RESONANCE; MILLISECONDS LIVING RADIOISOTOPES; NITROGEN ISOTOPES; NUCLEI; ODD-ODD NUCLEI; ORIENTATION; OXYGEN COMPOUNDS; RADIOISOTOPES; RELAXATION; RESONANCE; SPECTRA

Optional Information

Notes
12 refs., 6 figs. Imprint:#5E73##6210#28#5E74##5EA6##300C##77ED##5BFF##547D#RI#3092##7528##3044##305F##6838##5206##5149##3068##6838##7269##6027##7814##7A76#III#300D#