Chinese Physics C > 2011, Vol. 35 > Issue(8): 735-740 DOI: 10.1088/1674-1137/35/8/007

Chemical composition of the lunar surface from neutron leakage fluxes

Abstract
HTML
Reference
Related

PDF

Abstract：
The neutron leakage fluxes from the lunar surface are calculated by Monte Carlo transport code based on Geant4. The integral fluxes of fast neutrons, epi-thermal neutrons and thermal neutrons are analyzed. Numerical results for 20 kinds of lunar soils and 7 minerals show that the fast neutron fluxes are linearly related to the average atomic mass numbers of the lunar materials used in simulations. Meanwhile, the average atomic mass numbers are strongly modulated by the abundances of iron (Fe) and titanium (Ti), and a linear relationship between the average atomic mass numbers and the abundances of Fe and Ti is found. Furthermore, the results show that the ratios of epi-thermal to thermal fluxes for lunar soils are linearly related to the macroscopic absorption cross sections of lunar materials, and that the macroscopic absorption cross sections monotonically increase with the abundances of Fe and Ti by a simple function. Then we reach the conclusion that the neutron fluxes can provide the information about the Fe and Ti contents.

References

[1]

Evans L G, Reedy R C, Trombka J I. Introduction to Plane- tary Remote Sensing gamma Ray Spectroscopy. In: Pieters C M, Englert P A J ed. Remote Geochemical Analysis: Ele- mental and Mineralogical Composition. Camberidge: Cam- beridge Unversity Press, 1993. 1672 Feldman W C, Boynton W V, Drake D M. Planetary Neu- tron Spectroscopy from Orbit. In: Pieters C M and Englert P A J ed. Remote Geochemical Analysis: Elemental and Mineralogical Composition. Camberidge: Camberidge Un- versity Press, 1993. 2133 Feldman W C et al. Nucl. Instrum. Methods in Phys. Res. A, 1999, 422: 5624 Kobayashi S et al. Space Sci. Rev., 2010, 42: 3475 MA Tao et al. Advances in Space Research, 2008, 154: 1936 Feldman W C et al. Science, 2002, 297: 757 Mitrofanov I G et al. Planetary and Space Science, 2010, 58: 1168 Boynton W V et al. Science, 2002, 297: 819 Mitrofanov I G et al. Science, 2002, 297: 7810 Lawrence D J et al. Science, 1998, 281: 148411 Feldman W C et al. Science, 1998, 281: 148912 Feldman W C et al. Science, 1998, 281: 149613 Prettyman T H, Feldman W C, Titus T N. J. Geophys. Res., 2009, 114: E0800514 XU Shu-Yan. Monte Carlo Methods and Their Applica- tions to Experimental Nuclear Physics. (Revised). Beijing: Atomic Energy Press, 2006. 1 (in Chinese).15 https://mcnpx.lanl.gov/16 Agostinelli S et al. Nucl. Instrum. Methods in Phys. Res. A, 2003, 506: 25017 Lawrence D J et al. J. Geophys. Res., 2006, 111: E0800118 SONG Yu-Shou, YE Yan-Lin, GE Yu-Cheng et al. Chinese Physics C, 2009, 33: 86019 ZHANG Yi, ZHANG Xiao-Dong, WANG Wen-Xin et al. Chinese Physics C, 2009, 33: 4220 Serber R. Phys. Rev., 1947, 72: 111421 Feldman W C et al. J. Geophys. Res., 2000, 105(E8): 34722 Reedy R C. J. Geophys. Res., 1987, 92: E69723 Lucey P. Reviews in Mineralogy and Geochemistry, 2006, 60: 8324 Gasnault O et al. J. Geophys. Res., 2001, 28(19): 379725 Baum M, Knox H D, Miller T R. Chart of the Nuclides (Sixteen Edition), 2002. 40

[1]	Zuqing Wu,Jialun Ping,Hongshi Zong. Pion properties at finite isospin chemical potential with isospin symmetry breaking. Chinese Physics C, 2017, 41(12): 124106.doi:10.1088/1674-1137/41/12/124106
[2]	Wei Li,Hao Hao,Stepan F. Mikhailov,Victor Popov,Wei-Min Li,Ying. K. Wu. Compensation for booster leakage field in the Duke storage ring. Chinese Physics C, 2017, 41(1): 017002.doi:10.1088/1674-1137/41/1/017002
[3]	Ming Chen,Yong-Chang Huang. Thermodynamic surface system of static black holes and area law. Chinese Physics C, 2016, 40(11): 113101.doi:10.1088/1674-1137/40/11/113101
[4]	Cheng Zhang,Zu-Hao Li,Zhi-Cheng Tang,Suzan Basegmez du Pree,Shao-Wen Zhang,Xue-Qiang Wang,Min Yang,Guo-Ming Chen,He-Sheng Chen. Dead cell and side leakage correction for a lead-scintillating fiber electromagnetic calorimeter. Chinese Physics C, 2016, 40(9): 096204.doi:10.1088/1674-1137/40/9/096204
[5]	LIN Ye,FANG Fang,REN Jia-Fu,HE Lin-Feng,TANG Fang-Dong,XU Yi-He,DING Wei-Cheng. A measurement system for alpha and beta surface emissionrate using MWPC. Chinese Physics C, 2015, 39(5): 056001.doi:10.1088/1674-1137/39/5/056001
[6]	YE Xing-Chen,YU Bo-Xiang,ZHOU Xiang,ZHAO L,DING Ya-Yun,LIU Meng-Chao,DING Xue-Feng,ZHANG Xuan,JIE Quan-Lin,FANG Jian,CHEN Hai-Tao,HU Wei,NIU Shun-Li,YAN Jia-Qing,ZHAO Hang,HONG Dao-Jin,. Preliminary study of light yield dependence on LAB liquidscintillator composition. Chinese Physics C, 2015, 39(9): 096003.doi:10.1088/1674-1137/39/9/096003
[7]	DONG Tie-Kuang,YUN Su-Jun,MA Tao,CHANG Jin,DONG Wu-Dong,ZHANG Xiao-Ping,LI Guo-Long,REN Zhong-Zhou. Production rates of cosmogenic nuclei on the lunar surface. Chinese Physics C, 2014, 38(7): 075101.doi:10.1088/1674-1137/38/7/075101
[8]	WANG Zhuo,GAO Yu-Jie,LI Meng-Kai,ZHU Fei,ZHANG Da-Cheng,LIU Chang-Long. He and H sequential implantation induced surface blistering and exfoliation of Si covered with oxide layer. Chinese Physics C, 2013, 37(1): 016001.doi:10.1088/1674-1137/37/1/016001
[9]	ZHOU Xia,KANG Miao,WANG Na. Effect of magnetic field decay on the chemical heating of cooling neutron stars. Chinese Physics C, 2013, 37(8): 085102.doi:10.1088/1674-1137/37/8/085102
[10]	HU Zhi-Yuan,LIU Zhang-Li,SHAO Hua,ZHANG Zheng-Xuan,NING Bing-Xu,CHEN Ming,BI Da-Wei,ZOU Shi-Chang. Radiation induced inter-device leakage degradation. Chinese Physics C, 2011, 35(8): 769-773.doi:10.1088/1674-1137/35/8/013
[11]	LI Li,FENG Song-Lin,FENG Xiang-Qian,XU Qing,YAN Ling-Tong,MA Bo,HUO Hua. Study on the chemical composition features of Longquan celadon excavated from the Chuzhou site of Huai'an City in Jiangsu Province by EDXRF. Chinese Physics C, 2011, 35(7): 689-694.doi:10.1088/1674-1137/35/7/016
[12]	LIU Wei-Wei,LUO Zhi-Quan,ZHANG Jie,GAO Jie,BIAN Gang. Influence of super-strong magnetic field on the electron chemical potential and β decay in the stellar surroundings. Chinese Physics C, 2010, 34(8): 1090-1093.doi:10.1088/1674-1137/34/8/010
[13]	JIANG Yu,LI Ning,SUN Wei-Min,ZONG Hong-Shi. Calculation of equation of state of QCD at zero temperature and finite chemical potential. Chinese Physics C, 2010, 34(9): 1324-1327.doi:10.1088/1674-1137/34/9/033
[14]	MA Lie-Hua,WANG Yi-Fang,ZHANG Jia-Wen,Logan Lebanowski,Viktor Pec,XU Guang-Hua,CHEN Jin,XIE Yu-Guang,HAN Ji-Feng,ZHANG Qing-Min,QIAN Sen,NING Zhe. Study of RPC gas composition using Daya Bay RPCs. Chinese Physics C, 2010, 34(8): 1116-1121.doi:10.1088/1674-1137/34/8/015
[15]	LI Bing-Sheng,ZHANG Chong-Hong,ZHOU Li-Hong,YANG Yi-Tao. Surface morphology of He-implanted single-crystalline silicon. Chinese Physics C, 2008, 32(S2): 255-258.
[16]	WANG Zhuo,LIU Chang-Long,LIU Tian-Yu,WU Pei,ZHANG Xiao-Dong,LI Wen-Xia,LI Meng-Kai,YUAN Bing,LI Wen-Run. Study of surface exfoliation on crystalline silicon induced by Co-implantation of He and H ions. Chinese Physics C, 2008, 32(S2): 265-269.
[17]	LIU Jian-Li,WU Feng-Juan,ZHANG Jing-Bo,TANG Gui-Xin,HUO Lei. Effects of multi-collisions and surface on elliptic flow. Chinese Physics C, 2008, 32(S2): 21-23.
[18]	Shuanquan Luo,Cheng-Shing Wang. Thomas-Fermi Statistical Model Theory for the Surface Energy of Hot Nuclei. Chinese Physics C, 1995, 19(S2): 199-205.
[19]	Chen YLxin,Gao Hongbo. Integrability of Liouville System on High Genus Riemannian Surface I. Classical Case. Chinese Physics C, 1992, 16(S2): 141-153.
[20]	Jiang Huanqing,Li Yangguo. Surface Production ofηParticles inπ-A Collisions. Chinese Physics C, 1988, 12(S4): 387-392.

Access

Get Citation

CHENG Yu, DONG Tie-Kuang, DONG Wu-Dong, REN Zhong-Zhou and XU Ao-Ao. Chemical composition of the lunar surface from neutron leakage fluxes[J]. Chinese Physics C, 2011, 35(8): 735-740. doi: 10.1088/1674-1137/35/8/007

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2010-11-15
Revised: 1900-01-01

Article Metric

Article Views(4444)
PDF Downloads(520)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者:陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Chemical composition of the lunar surface from neutron leakage fluxes

Received Date:2010-11-15

Accepted Date:1900-01-01

Available Online:2011-08-05

Abstract:The neutron leakage fluxes from the lunar surface are calculated by Monte Carlo transport code based on Geant4. The integral fluxes of fast neutrons, epi-thermal neutrons and thermal neutrons are analyzed. Numerical results for 20 kinds of lunar soils and 7 minerals show that the fast neutron fluxes are linearly related to the average atomic mass numbers of the lunar materials used in simulations. Meanwhile, the average atomic mass numbers are strongly modulated by the abundances of iron (Fe) and titanium (Ti), and a linear relationship between the average atomic mass numbers and the abundances of Fe and Ti is found. Furthermore, the results show that the ratios of epi-thermal to thermal fluxes for lunar soils are linearly related to the macroscopic absorption cross sections of lunar materials, and that the macroscopic absorption cross sections monotonically increase with the abundances of Fe and Ti by a simple function. Then we reach the conclusion that the neutron fluxes can provide the information about the Fe and Ti contents.

HTML

Reference (1)

Chemical composition of the lunar surface from neutron leakage fluxes

Abstract：

References

Access

Article Metrics

Metrics

通讯作者:陈斌, bchen63@163.com

Email This Article

Chemical composition of the lunar surface from neutron leakage fluxes

HTML

目录