Photostimulated luminescence applicable to pre-screening of potassium-rich phases in chondritic breccias

Tatsunori Yokoyama; Keiji Misawa; Osamu Okano; Haruka Minowa; Takaaki Fukuoka

doi:10.1007/s10967-016-4846-x

Photostimulated luminescence applicable to pre-screening of potassium-rich phases in chondritic breccias

Tatsunori Yokoyama, Keiji Misawa, Osamu Okano, Haruka Minowa, Takaaki Fukuoka

Research output: Contribution to journal › Article › peer-review

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Abstract

The identification of alkali-rich components in extraterrestrial materials along with their separation from other constituents is indispensable for subsequent cosmochemical and isotopic studies. This paper presents a simple pre-screening method for such materials by autoradiography using imaging plates (IPs), which is applicable to identification of mm-sized samples containing ca. 30 µg of potassium in the Yamato-74442 chondrite. The detection limit of IPs was ~1 mBq of ⁴⁰K under 49 days exposure. The method provides an opportunity to screen meteorite materials non-destructively and to inexpensively check potassium-rich areas and are suitable for the ⁴⁰K–⁴⁰Ca and ⁴⁰K–⁴⁰Ar (³⁹Ar–⁴⁰Ar) age determinations.

Original language	English
Pages (from-to)	81-89
Number of pages	9
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	310
Issue number	1
DOIs	https://doi.org/10.1007/s10967-016-4846-x
Publication status	Published - Oct 1 2016

Keywords

Chondritic meteorites
Imaging plate
K decay
K-rich rock fragments

ASJC Scopus subject areas

Analytical Chemistry
Nuclear Energy and Engineering
Radiology Nuclear Medicine and imaging
Pollution
Spectroscopy
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s10967-016-4846-x

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title = "Photostimulated luminescence applicable to pre-screening of potassium-rich phases in chondritic breccias",

abstract = "The identification of alkali-rich components in extraterrestrial materials along with their separation from other constituents is indispensable for subsequent cosmochemical and isotopic studies. This paper presents a simple pre-screening method for such materials by autoradiography using imaging plates (IPs), which is applicable to identification of mm-sized samples containing ca. 30 µg of potassium in the Yamato-74442 chondrite. The detection limit of IPs was ~1 mBq of 40K under 49 days exposure. The method provides an opportunity to screen meteorite materials non-destructively and to inexpensively check potassium-rich areas and are suitable for the 40K–40Ca and 40K–40Ar (39Ar–40Ar) age determinations.",

keywords = "Chondritic meteorites, Imaging plate, K decay, K-rich rock fragments",

author = "Tatsunori Yokoyama and Keiji Misawa and Osamu Okano and Haruka Minowa and Takaaki Fukuoka",

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doi = "10.1007/s10967-016-4846-x",

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T1 - Photostimulated luminescence applicable to pre-screening of potassium-rich phases in chondritic breccias

AU - Yokoyama, Tatsunori

AU - Misawa, Keiji

AU - Okano, Osamu

AU - Minowa, Haruka

AU - Fukuoka, Takaaki

PY - 2016/10/1

Y1 - 2016/10/1

N2 - The identification of alkali-rich components in extraterrestrial materials along with their separation from other constituents is indispensable for subsequent cosmochemical and isotopic studies. This paper presents a simple pre-screening method for such materials by autoradiography using imaging plates (IPs), which is applicable to identification of mm-sized samples containing ca. 30 µg of potassium in the Yamato-74442 chondrite. The detection limit of IPs was ~1 mBq of 40K under 49 days exposure. The method provides an opportunity to screen meteorite materials non-destructively and to inexpensively check potassium-rich areas and are suitable for the 40K–40Ca and 40K–40Ar (39Ar–40Ar) age determinations.

AB - The identification of alkali-rich components in extraterrestrial materials along with their separation from other constituents is indispensable for subsequent cosmochemical and isotopic studies. This paper presents a simple pre-screening method for such materials by autoradiography using imaging plates (IPs), which is applicable to identification of mm-sized samples containing ca. 30 µg of potassium in the Yamato-74442 chondrite. The detection limit of IPs was ~1 mBq of 40K under 49 days exposure. The method provides an opportunity to screen meteorite materials non-destructively and to inexpensively check potassium-rich areas and are suitable for the 40K–40Ca and 40K–40Ar (39Ar–40Ar) age determinations.

KW - Chondritic meteorites

KW - Imaging plate

KW - K decay

KW - K-rich rock fragments

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Photostimulated luminescence applicable to pre-screening of potassium-rich phases in chondritic breccias

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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