A light and small exoplanet in situ dating method and its dating method

Abstract

The invention belongs to the technical field of geological dating and deep space exploration equipment, and in particular relates to a light and small exoplanet in-situ dating device, which comprises: a miniature X-ray tube (1), an X-ray fluorescence spectrometer (2), a microscopic X-ray tube (1), an X-ray fluorescence spectrometer (2). Focal spot electron beam tube (3), mass spectrometer (4), X-ray capillary lens (5), fixed base (14), support (13), sample chamber (7), vacuum pump support (15) and vacuum pump (6) ; one side of the X-ray fluorescence spectrometer (2) is sequentially provided with a micro X-ray tube (1) and a micro-focal spot electron beam tube (3), the X-ray fluorescence spectrometer (2), the micro X-ray tube (1), the micro-focal spot The electron beam tube (3) forms a trident structure and is arranged on the sample chamber (7); the micro X-ray tube (1) and the X-ray capillary lens (5) are arranged in an upper and lower structure; the mass spectrometer (4) is arranged in the sample chamber On (7), it is communicated with the sample chamber (7); the vacuum pump (6) is communicated with the sample chamber (7) and the mass spectrometer (4).

Description

technical field [0001] The invention belongs to the technical field of geological dating and deep space exploration equipment, and in particular relates to a light and small exoplanet in-situ dating device and a dating method thereof. Background technique [0002] Time is one of the central scientific questions in our understanding of the origin and evolution of planets, the solar system and even the universe. The determination of the surface age of extraterrestrial celestial bodies is of great value to the study of the formation history and evolution of planets, resource exploration, ore biological evolution, climate change laws, environmental changes and many other researches. For the in-situ dating of exoplanets, the K-Ar dating method is an ideal choice, that is, using the 40 K decays into 40 Ar phenomenon, measured in rocks 40 K and 40 The mass percentage of the element Ar, so as to measure the rock age. The specific yearly formula is as follows: [0003] [00...

AI Technical Summary

Problems solved by technology

Therefore, whether it is the APXS plus MS dating scheme or the LIBS plus MS technical scheme, additional technical means are needed to achieve sample quality measurement, which increases the resource requirements of dating instruments in terms of weight and power consumption. Thus limiting the application of this technology in space

In addition, the mass measurement error also affects the dating accuracy of the dater

In addition, the weight of APXS and LIBS itself is also at the kilogram level, so it is impossible to achieve light and small size by using the existing two technical solutions

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