Conceptual Design of an In Situ K-Ar Isochron Dating Instrument for Future Mars Rover Missions
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- CHO Yuichiro
- Department of Physics, Rikkyo University
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- KAMEDA Shingo
- Department of Physics, Rikkyo University
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- MIURA Yayoi N.
- Earthquake Research Institute, The University of Tokyo
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- SAITO Yoshifumi
- Institute of Space and Astronautical Science, JAXA
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- YOKOTA Shoichiro
- Institute of Space and Astronautical Science, JAXA
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- KASAHARA Satoshi
- Institute of Space and Astronautical Science, JAXA
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- OKAZAKI Ryuji
- Department of Earth and Planetary Sciences, Faculty of Sciences, Kyushu University
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- YOSHIOKA Kazuo
- Department of Physics, Rikkyo University
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- SHIBASAKI Kazuo
- Department of Physics, Rikkyo University
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- OISHI Takahiro
- Institute of Space and Astronautical Science, JAXA
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- SUGITA Seiji
- Department of Earth and Planetary Science, The University of Tokyo
Abstract
<p>Age is one of the most important observables in planetary science. Although a sample return mission will provide accurate radiometric age measurements, it may not be launched very often because of its high cost. Thus, in situ radiometric age measurements with a one-way landing mission is very important. We are developing an on-site K–Ar isochron dating instrument for such a mission. This instrument is intended to measure K and Ar abundances with laser-induced breakdown spectroscopy and noble gas mass spectrometry, respectively. In this study, we propose an in situ dating package using mostly flight-equivalent components and a small number of components currently under development by our team. The geochronology instrument suite will contain a pulse laser, a spectrometer, a re-sealable vacuum chamber, a time-of-flight mass spectrometer, and a sample handling system using parallel link arms. Our assessment estimates that such an in situ geochronology package for measuring K–Ar crystallization age with 10–15% of accuracy for rocks with 3 Ga of age would be approximately 240 mm × 240 mm × 400 mm in size and 12.5 kg in mass.</p>
Journal
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- TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN
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TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN 14 (ists30), Pk_89-Pk_94, 2016
THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
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Keywords
Details 詳細情報について
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- CRID
- 1390001205319207936
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- NII Article ID
- 130005250057
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- ISSN
- 18840485
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed