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Title: THE FIRST LUNAR MAP OF THE AVERAGE SOIL ATOMIC MASS

Abstract

Measurements of indexes of lunar surface composition were successfully made during Lunar Prospector (LP) mission, using the Neutron Spectrometers (NS) [1]. This capability is demonstrated for fast neutrons in Plates 1 of Maurice et al. [2] (similar to Figure 2 here). Inspection shows a clear distinction between mare basalt (bright) and highland terranes [2]. Fast neutron simulations demonstrate the sensitivity of the fast neutron leakage flux to the presence of iron and titanium in the soil [3]. The dependence of the flux to a third element (calcium or aluminum) was also suspected [4]. We expand our previous work in this study by estimating fast neutron leakage fluxes for a more comprehensive set of assumed lunar compositions. We find a strong relationship between the fast neutron fluxes and the average soil atomic mass: <A>. This relation can be inverted to provide a map of <A> from the measured map of fast neutrons from the Moon.

Authors:
; ;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
773346
Report Number(s):
LA-UR-01-250
TRN: AH200123%%48
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: Conference title not supplied, Conference location not supplied, Conference dates not supplied; Other Information: PBD: 1 Jan 2001
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALUMINIUM; BASALT; CALCIUM; FAST NEUTRONS; IRON; MOON; NEUTRON SPECTROMETERS; SENSITIVITY; SOILS; TITANIUM; MAPS; GEOCHEMISTRY

Citation Formats

O. GASNAULT, W. FELDMAN, and ET AL. THE FIRST LUNAR MAP OF THE AVERAGE SOIL ATOMIC MASS. United States: N. p., 2001. Web.
O. GASNAULT, W. FELDMAN, & ET AL. THE FIRST LUNAR MAP OF THE AVERAGE SOIL ATOMIC MASS. United States.
O. GASNAULT, W. FELDMAN, and ET AL. Mon . "THE FIRST LUNAR MAP OF THE AVERAGE SOIL ATOMIC MASS". United States. doi:. https://www.osti.gov/servlets/purl/773346.
@article{osti_773346,
title = {THE FIRST LUNAR MAP OF THE AVERAGE SOIL ATOMIC MASS},
author = {O. GASNAULT and W. FELDMAN and ET AL},
abstractNote = {Measurements of indexes of lunar surface composition were successfully made during Lunar Prospector (LP) mission, using the Neutron Spectrometers (NS) [1]. This capability is demonstrated for fast neutrons in Plates 1 of Maurice et al. [2] (similar to Figure 2 here). Inspection shows a clear distinction between mare basalt (bright) and highland terranes [2]. Fast neutron simulations demonstrate the sensitivity of the fast neutron leakage flux to the presence of iron and titanium in the soil [3]. The dependence of the flux to a third element (calcium or aluminum) was also suspected [4]. We expand our previous work in this study by estimating fast neutron leakage fluxes for a more comprehensive set of assumed lunar compositions. We find a strong relationship between the fast neutron fluxes and the average soil atomic mass: <A>. This relation can be inverted to provide a map of <A> from the measured map of fast neutrons from the Moon.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}

Conference:
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