Gamma-Ray Spectrum Analysis of Chang’E-1 for Lunar Detection
- 16 December 2010
- journal article
- Published by ASME International in Journal of Engineering for Gas Turbines and Power
- Vol. 133 (5), 052912
- https://doi.org/10.1115/1.4002846
Abstract
Gamma-ray spectrum analysis was essential for radioactive environmental monitoring, and it had been widely used in many areas of nuclear engineering. However, for the low-energy region of gamma-ray spectrum, weak peaks were contained in the fast-decreasing background, so it was difficult to extract characteristic information from original spectra. In order to get a better analytic result based on wavelet methods in frequency domain, we had processed the gamma-ray spectrometer data of Chang’E-1 and well extracted some useful information of spectral characteristic peaks. Then, we preliminarily mapped the distribution of net peak counts for potassium on lunar surface, which indirectly reflected the distribution of elemental abundance. At last, we compared our analytic result with that of Apollo and Lunar Prospector and found some consistencies and differences.Keywords
This publication has 14 references indexed in Scilit:
- Sophisticated algorithms of analysis of spectroscopic dataPublished by Sissa Medialab Srl ,2009
- Unified description of angular distributions of target particles in light and heavy ion induced interactions in nuclear emulsions at high energiesChinese Physics C, 2009
- First Results of High Performance Ge Gamma-Ray Spectrometer Onboard Lunar Orbiter SELENE (KAGUYA)Journal of the Physics Society Japan, 2009
- Multidimensional peak searching algorithm for low-statistics nuclear spectraNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2007
- The high precision gamma-ray spectrometer for lunar polar orbiter SELENEAdvances in Space Research, 2007
- LUNAR PROSPECTOR: FIRST RESULTS AND LESSONS LEARNEDActa Astronautica, 2002
- Automatic Background Estimation of SpectraJournal of Surface Analysis, 2002
- Background elimination methods for multidimensional coincidence γ-ray spectraNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1997
- SNIP, a statistics-sensitive background treatment for the quantitative analysis of PIXE spectra in geoscience applicationsNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1988
- The Apollo gamma-ray spectrometerNuclear Instruments and Methods, 1974