CAJ | 학술논문

宇宙射线与月表物质相互作用及月表天然放射性核素的衰变均会产生γ射线。由于月球大气层稀薄，射线谱仪能够在环月轨道上探测到月表发出的γ射线。因此，根据所观测到的射线的能量和通量，能够确定月表元素的种类和丰度[1]。通过γ射线谱仪探测得到月表元素分布特征，能够为月球地质解译提供依据。发射过探月卫星的国家都将γ射线谱仪定为卫星搭载必备载荷，美国、日本先后将不同类型的γ射线谱仪送上太空进行观测，中国已发射携带γ射线谱仪（CE1-GRS）的嫦娥一号绕月卫星，利用该谱仪返回的数据，可进行月表元素的分析和研究工作。
우주사선여월표물질상호작용급월표천연방사성핵소적쇠변균회산생γ사선。유우월구대기층희박，사선보의능구재배월궤도상탐측도월표발출적γ사선。인차，근거소관측도적사선적능량화통량，능구학정월표원소적충류화봉도[1]。통과γ사선보의탐측득도월표원소분포특정，능구위월구지질해역제공의거。발사과탐월위성적국가도장γ사선보의정위위성탑재필비재하，미국、일본선후장불동류형적γ사선보의송상태공진행관측，중국이발사휴대γ사선보의（CE1-GRS）적항아일호요월위성，이용해보의반회적수거，가진행월표원소적분석화연구공작。
Gamma rays are produced in the lunar surface by the decay of long -lived radioactive elements and by cosmic ray interactions.Because the atmosphere is weak , gamma rays can be observed on lunar orbit .Gam-ma-ray spectroscopy data are used to determine global maps of the elemental composition on the lunar surface . According to maps of the abundance of major elements , we can present along with their geochemical interpreta-tion.Gamma-ray spectrometer (GRS) is an indispensable part of lunar satellites , USA and Japan have sent different kinds of GRS into the sky .Gamma-ray spectroscopy data obtained by Chinese first lunar mission Chang’E-1 can help people to do analysis and to detect the entire lunar surface .