Remote planetary geochemical exploration with the NEAR X-ray/gamma-ray spectrometer

J. I. Trombka; W. V. Boynton; J. Brückner; S. Squyres; P. E. Clark; R. Starr; L. G. Evans; S. R. Floyd; T. P. McClanahan; J. Goldsten; R. Mcnutt; J. S. Schweitzer

doi:10.1016/S0168-9002(98)00939-5

Remote planetary geochemical exploration with the NEAR X-ray/gamma-ray spectrometer

J. I. Trombka, W. V. Boynton, J. Brückner, S. Squyres, P. E. Clark, R. Starr, L. G. Evans, S. R. Floyd, T. P. McClanahan, J. Goldsten, R. Mcnutt, J. S. Schweitzer

Lunar and Planetary Lab

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The X-ray/gamma-ray spectrometer (XGRS) instrument onboard the Near Earth Asteroid Rendezvous (NEAR) spacecraft will map asteroid 433 Eros in the 0.2 keV to 10 MeV energy region. Measurements of the discrete line X-ray and gamma-ray emissions in this energy domain can be used to obtain both qualitative and quantitative elemental composition maps of the asteroid surface. The NEAR X-ray/gamma-ray spectrometer (XGRS) was turned on for the first time during the week of 7 April 1996. Rendezvous with Eros 433 is expected during December 1998. Observations of solar X-ray spectra during both quiescent and active periods have been made. A gamma-ray transient detection system has been implemented and about three gamma-ray transient events a week have been observed which are associated with either gamma-ray bursts or solar flares.

Original language	English (US)
Pages (from-to)	572-576
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	422
Issue number	1-3
DOIs	https://doi.org/10.1016/S0168-9002(98)00939-5
State	Published - 1999

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/S0168-9002(98)00939-5

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Trombka, J. I., Boynton, W. V., Brückner, J., Squyres, S., Clark, P. E., Starr, R., Evans, L. G., Floyd, S. R., McClanahan, T. P., Goldsten, J., Mcnutt, R., & Schweitzer, J. S. (1999). Remote planetary geochemical exploration with the NEAR X-ray/gamma-ray spectrometer. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 422(1-3), 572-576. https://doi.org/10.1016/S0168-9002(98)00939-5

Remote planetary geochemical exploration with the NEAR X-ray/gamma-ray spectrometer. / Trombka, J. I.; Boynton, W. V.; Brückner, J. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 422, No. 1-3, 1999, p. 572-576.

Research output: Contribution to journal › Article › peer-review

Trombka, JI, Boynton, WV, Brückner, J, Squyres, S, Clark, PE, Starr, R, Evans, LG, Floyd, SR, McClanahan, TP, Goldsten, J, Mcnutt, R & Schweitzer, JS 1999, 'Remote planetary geochemical exploration with the NEAR X-ray/gamma-ray spectrometer', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 422, no. 1-3, pp. 572-576. https://doi.org/10.1016/S0168-9002(98)00939-5

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abstract = "The X-ray/gamma-ray spectrometer (XGRS) instrument onboard the Near Earth Asteroid Rendezvous (NEAR) spacecraft will map asteroid 433 Eros in the 0.2 keV to 10 MeV energy region. Measurements of the discrete line X-ray and gamma-ray emissions in this energy domain can be used to obtain both qualitative and quantitative elemental composition maps of the asteroid surface. The NEAR X-ray/gamma-ray spectrometer (XGRS) was turned on for the first time during the week of 7 April 1996. Rendezvous with Eros 433 is expected during December 1998. Observations of solar X-ray spectra during both quiescent and active periods have been made. A gamma-ray transient detection system has been implemented and about three gamma-ray transient events a week have been observed which are associated with either gamma-ray bursts or solar flares.",

author = "Trombka, {J. I.} and Boynton, {W. V.} and J. Br{\"u}ckner and S. Squyres and Clark, {P. E.} and R. Starr and Evans, {L. G.} and Floyd, {S. R.} and McClanahan, {T. P.} and J. Goldsten and R. Mcnutt and Schweitzer, {J. S.}",

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AU - Trombka, J. I.

AU - Boynton, W. V.

AU - Brückner, J.

AU - Squyres, S.

AU - Clark, P. E.

AU - Starr, R.

AU - Evans, L. G.

AU - Floyd, S. R.

AU - McClanahan, T. P.

AU - Goldsten, J.

AU - Mcnutt, R.

AU - Schweitzer, J. S.

PY - 1999

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AB - The X-ray/gamma-ray spectrometer (XGRS) instrument onboard the Near Earth Asteroid Rendezvous (NEAR) spacecraft will map asteroid 433 Eros in the 0.2 keV to 10 MeV energy region. Measurements of the discrete line X-ray and gamma-ray emissions in this energy domain can be used to obtain both qualitative and quantitative elemental composition maps of the asteroid surface. The NEAR X-ray/gamma-ray spectrometer (XGRS) was turned on for the first time during the week of 7 April 1996. Rendezvous with Eros 433 is expected during December 1998. Observations of solar X-ray spectra during both quiescent and active periods have been made. A gamma-ray transient detection system has been implemented and about three gamma-ray transient events a week have been observed which are associated with either gamma-ray bursts or solar flares.

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JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 1-3

ER -

Remote planetary geochemical exploration with the NEAR X-ray/gamma-ray spectrometer

Abstract

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