INTENSITY VARIATION OF GAMMA RAYS DUE TO WATER CONCENTRATIONS ON THE LUNAR SURFACE

被引：0

作者：

Iwabuchi, K. ^{[1
]}

Yamashita, N. ^{[1
]}

Kobayashi, S. ^{[1
]}

Hayatsu, K. ^{[1
]}

Hareyama, M. ^{[1
]}

Karouji, Y. ^{[1
]}

Sakurai, K. ^{[1
]}

Hasebe, N. ^{[1
]}

机构：

[1] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan

来源：

ASTROPARTICLE, PARTICLE AND SPACE PHYSICS, DETECTORS AND MEDICAL PHYSICS APPLICATIONS | 2008年 / 4卷

关键词：

D O I：

10.1142/9789812819093_0138

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Fluxes of gamma rays emitted from the lunar surface consisting from ferroan anorthosite with various concentration of water (H2O) were calculated with Geant4. They are useful to the current and future lunar missions for the projects to search for the existence of water in the lunar polar regions with a gamma-ray spectrometer. The result thus obtained indicates that the flux of gamma-rays with 2223 keV due to the reactions H-1(n, gamma)D-2 has a monotonous dependence on the concentration of H2O from 0.1 to 20 wt% and the flux of 4934 keV gamma-rays due to the reactions Si-28(n, gamma)Si-29 is remarkably correlated with the abundance of H2O. The variation of these gamma-ray fluxes dependent on the concentration of H2O is also discussed with the neutron density profile in the lunar subsurface.

引用

页码：829 / 833

页数：5

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