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Experimental validation of XRF inversion code for Chandrayaan-1

机译:Chandrayaan-1的XRF反转代码的实验验证

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摘要

We have developed an algorithm (x2abundance) to derive the lunar surface chemistry from X-ray fluorescence (XRF) data for the Chandrayaan-1 X-ray Spectrometer (C1XS) experiment. The algorithm converts the observed XRF line fluxes to elemental abundances with uncertainties. We validated the algorithm in the laboratory using high Z elements (20 <Z <30) published in Athiray et al. (2013). In this paper, we complete the exercise of validation using samples containing low Z elements, which are also analogous to the lunar surface composition (ie., contains major elements between 11 <Z <30). The paper summarizes results from XRF experiments performed on Lunar simulant (JSC-1A) and anorthosite using a synchrotron beam excitation. We also discuss results from the validation of x2abundance using Monte Carlo simulation (GEANT4 XRF simulation).
机译:我们开发了一种算法(x2abundance),可从Chandrayaan-1 X射线光谱仪(C1XS)实验的X射线荧光(XRF)数据中得出月球表面化学成分。该算法将观测到的XRF线通量转换为具有不确定性的元素丰度。我们在实验室中使用Athiray等人发表的高Z元素(20 <Z <30)验证了该算法。 (2013)。在本文中,我们使用低Z元素的样本完成验证工作,该样本也与月球表面成分相似(即,包含11 <Z <30的主要元素)。本文总结了使用同步加速器束激发在月球模拟物(JSC-1A)和原位生物上进行的XRF实验的结果。我们还将讨论使用蒙特卡洛模拟(GEANT4 XRF模拟)验证x2丰度的结果。

著录项

  • 来源
    《Planetary and space science》 |2013年第12期|183-187|共5页
  • 作者单位

    ISRO Satellite Centre. Vimanapura P.O., Bangalore 560 017, India ,Department of Physics, University of Calicut, Thenjippalam, Kerala, India;

    ISRO Satellite Centre. Vimanapura P.O., Bangalore 560 017, India;

    Raja Ramanna Centre for Advanced Technology (RRCAT), Indore, MP, India;

    ISRO Satellite Centre. Vimanapura P.O., Bangalore 560 017, India;

    Raja Ramanna Centre for Advanced Technology (RRCAT), Indore, MP, India;

    Raja Ramanna Centre for Advanced Technology (RRCAT), Indore, MP, India;

    Indian Institute of Astrophysics (IIA), Koramangala, Bangalore, India;

    ISRO Satellite Centre. Vimanapura P.O., Bangalore 560 017, India;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    X-ray Fluorescence (XRF); Chandrayaan-1; Fundamental parameter; C1XS; Lunar chemistry;

    机译:X射线荧光(XRF);Chandrayaan-1;基本参数;C1XS;月球化学;

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