Published February 2019 | Version v1
Report Restricted

Improvement of methods for measurement of 129I/127I ratio at JAEA-AMS-TONO

Creators

  • 1. Japan Atomic Energy Agency, Tono Geoscience Center, Toki, Gifu (Japan)
  • 2. PESCO Co., Ltd., Tokyo (Japan)

Description

Residence time of groundwater is one of the most important information to characterize coastal areas in terms of geological disposal. Iodine-129 (129I) has relative long half-life (ca. 15.7 million year). Therefore, the 129I/127I dating is effective to estimate the residence time of the old groundwater, such as fossil sea water. To measure 129I/127I ratio in the groundwater, we improved sample preparation method and AMS system at JAEA-AMS-TONO (Tono Geoscience Center, Japan Atomic Energy Agency). (author)

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Part of:
Proceedings of the 20th Japanese symposium on accelerator mass spectrometry

Additional details

Additional titles

Original title (Japanese)
JAEA-AMS-TONOにおける129I/127I比測定の整備

Identifiers

DOI
10.11484/jaea-conf-2018-002;

Publishing Information

Imprint Title
Proceedings of the 20th Japanese symposium on accelerator mass spectrometry
Imprint Pagination
[148 p.]
Journal Page Range
p. 51-54
Report number
JAEA-Conf--2018-002

Conference

Title
20. Japanese symposium on accelerator mass spectrometry
Acronym
JAMS-20
Dates
14-15 Dec 2017
Place
Toki, Gifu (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
50052584
Subject category
S58: GEOSCIENCES;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BACKGROUND RADIATION; GEOLOGY; GROUND WATER; HIGH-LEVEL RADIOACTIVE WASTES; IODINE 127; IODINE 129; IONIZATION CHAMBERS; ISOTOPE DATING; ISOTOPE RATIO; ISOTOPE SEPARATION; RESIDENCE HALF-TIME; SILVER IODIDES; SOLVENT EXTRACTION; TANDEM ELECTROSTATIC ACCELERATORS; UNDERGROUND DISPOSAL
Descriptors DEC
ACCELERATORS; AGE ESTIMATION; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DIMENSIONLESS NUMBERS; ELECTROSTATIC ACCELERATORS; EXTRACTION; HALIDES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IODIDES; IODINE COMPOUNDS; IODINE ISOTOPES; ISOTOPES; MANAGEMENT; MATERIALS; MEASURING INSTRUMENTS; NUCLEI; ODD-EVEN NUCLEI; OXYGEN COMPOUNDS; RADIATION DETECTORS; RADIATIONS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; RADIOISOTOPES; SEPARATION PROCESSES; SILVER COMPOUNDS; SILVER HALIDES; STABLE ISOTOPES; TRANSITION ELEMENT COMPOUNDS; WASTE DISPOSAL; WASTE MANAGEMENT; WASTES; WATER; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
8 refs., 2 figs., 1 tab. Imprint:#7B2C#20#56DE#AMS#30B7##30F3##30DD##30B8##30A6##30E0##5831##544A##96C6#