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Monte Carlo simulation of the gamma ray spectrometer performance on Lunar Prospector

We present results of a simulation for the GRS instrument response expected in lunar orbit, using 90 spectral lines and a continuum gamma ray background taken from Apollo 15 and 16 data. The Monte Carlo program uses the exact dimensions and composition of the GRS in order to most accurately predict...

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Main Authors:	Mcmurray, R.E., Grimmer, M.C., Feldman, W.C., Hubbard, G.S., Zins, S.D.
Format:	Conference Proceeding
Language:	English
Subjects:	Bismuth Energy resolution Gamma ray detection Gamma ray detectors Instruments Monte Carlo methods Moon Plastics Silicon Spectroscopy
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creator	Mcmurray, R.E. Grimmer, M.C. Feldman, W.C. Hubbard, G.S. Zins, S.D.
description	We present results of a simulation for the GRS instrument response expected in lunar orbit, using 90 spectral lines and a continuum gamma ray background taken from Apollo 15 and 16 data. The Monte Carlo program uses the exact dimensions and composition of the GRS in order to most accurately predict spectral performance, assuming an operating temperature on orbit of -30/spl deg/C. We expect to obtain a resolution at 662 keV @ -30/spl deg/C of about 9.6% FWHM. The data set is expected to be 2.5 to 8 times better in terms of peak intensity than the NaI data from Apollo orbiters. This factor depends on the gamma ray energy and is due to the high-Z BGO detector used in the GRS. Both coincidence and anticoincidence data will be returned, and a linear combination of the two spectra will be determined for best peak to background ratios.
doi_str_mv	10.1109/NSSMIC.1997.672654
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Both coincidence and anticoincidence data will be returned, and a linear combination of the two spectra will be determined for best peak to background ratios.</description><subject>Bismuth</subject><subject>Energy resolution</subject><subject>Gamma ray detection</subject><subject>Gamma ray detectors</subject><subject>Instruments</subject><subject>Monte Carlo methods</subject><subject>Moon</subject><subject>Plastics</subject><subject>Silicon</subject><subject>Spectroscopy</subject><issn>1082-3654</issn><issn>2577-0829</issn><isbn>0780342585</isbn><isbn>9780780342583</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>1997</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><recordid>eNotkMlqwzAYhEUXaJL2BXLSC9jVaknHYroEnLYQ34Mk_25dLMvIziFvX9P0NDDzMQyD0JaSnFJiHt8Ph_2uzKkxKi8UK6S4QismlcqIZuYarYnShAsmtbxBK7qYGV-gO7Seph9C2JKJFar3cZgBlzb1EU9dOPV27uKAY4vnb8BfNgSLkz3jaQQ_pxhghoRHSG1MwQ4e8AJXp8Em_JniHxTTPbptbT_Bw79uUP3yXJdvWfXxuiufqqwruMgoSOcFl5JqU1BGfdO0inhvBAHniGwsMKbBCSGZY9TplinFAZbtUirH-QZtL7UdABzH1AWbzsfLF_wXbRZSDA</recordid><startdate>1997</startdate><enddate>1997</enddate><creator>Mcmurray, R.E.</creator><creator>Grimmer, M.C.</creator><creator>Feldman, W.C.</creator><creator>Hubbard, G.S.</creator><creator>Zins, S.D.</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>1997</creationdate><title>Monte Carlo simulation of the gamma ray spectrometer performance on Lunar Prospector</title><author>Mcmurray, R.E. ; Grimmer, M.C. ; Feldman, W.C. ; Hubbard, G.S. ; Zins, S.D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i634-1e5bc43551896121cddf70cc940ebb05dae228eb4452b21b8f2773ee002557b33</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Bismuth</topic><topic>Energy resolution</topic><topic>Gamma ray detection</topic><topic>Gamma ray detectors</topic><topic>Instruments</topic><topic>Monte Carlo methods</topic><topic>Moon</topic><topic>Plastics</topic><topic>Silicon</topic><topic>Spectroscopy</topic><toplevel>online_resources</toplevel><creatorcontrib>Mcmurray, R.E.</creatorcontrib><creatorcontrib>Grimmer, M.C.</creatorcontrib><creatorcontrib>Feldman, W.C.</creatorcontrib><creatorcontrib>Hubbard, G.S.</creatorcontrib><creatorcontrib>Zins, S.D.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Xplore (Online service)</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Mcmurray, R.E.</au><au>Grimmer, M.C.</au><au>Feldman, W.C.</au><au>Hubbard, G.S.</au><au>Zins, S.D.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Monte Carlo simulation of the gamma ray spectrometer performance on Lunar Prospector</atitle><btitle>1997 IEEE Nuclear Science Symposium Conference Record</btitle><stitle>NSSMIC</stitle><date>1997</date><risdate>1997</risdate><volume>1</volume><spage>601</spage><epage>604 vol.1</epage><pages>601-604 vol.1</pages><issn>1082-3654</issn><eissn>2577-0829</eissn><isbn>0780342585</isbn><isbn>9780780342583</isbn><abstract>We present results of a simulation for the GRS instrument response expected in lunar orbit, using 90 spectral lines and a continuum gamma ray background taken from Apollo 15 and 16 data. 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subjects	Bismuth Energy resolution Gamma ray detection Gamma ray detectors Instruments Monte Carlo methods Moon Plastics Silicon Spectroscopy
title	Monte Carlo simulation of the gamma ray spectrometer performance on Lunar Prospector
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