Journal ArticleDOI
Instrument Calibrations and Data Analysis Procedures for the NEAR X-Ray Spectrometer
R. D. Starr,Pamela Elizabeth Clark,M. E. Murphy,S. R. Floyd,T. P. McClanahan,Larry R. Nittler,Jacob I. Trombka,Larry G. Evans,William V. Boynton,Samuel Bailey,J. S. Bhangoo,I. Mikheeva,J. Brückner,S. W. Squyres,E. McCartney,John O. Goldsten,Ralph L. McNutt +16 more
TLDR
The X-ray spectrometer onboard the Near Earth Asteroid Rendezvous spacecraft will measure X-rays from the surface of 433 Eros in the energy region 0.7-10 keV as discussed by the authors.About:
This article is published in Icarus.The article was published on 2000-10-01. It has received 28 citations till now. The article focuses on the topics: Spectrometer.read more
Citations
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Proceedings ArticleDOI
A Ground Systems Template for Remote Sensing Systems
T. P. McClanahan,Jacob I. Trombka,S. R. Floyd,Walter Truskowski,R. Starr,Pamela Elizabeth Clark,Larry G. Evans +6 more
TL;DR: The Near Earth Asteroid Rendezvous (NEAR) spacecraft included X-ray and gamma-ray spectrometers (XGRS), whose mission was to map the elemental chemistry of the 433 Eros asteroid as mentioned in this paper.
Book ChapterDOI
The Earth, the Moon, Mercury, Saturn and Its Rings, and Asteroids
TL;DR: A brief review of X-ray emissions from the Earth, and in particular its aurora, from the Moon, Mercury, Saturn and its rings, and asteroids is provided in this paper .
References
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Book
Radiation detection and measurement
TL;DR: In this paper, the authors present a detailed analysis of the effect of different types of detectors on the performance of the detection of neutrons and their effect on the detection efficiency and error prediction.
Journal ArticleDOI
Apollo 15 Geochemical X-ray Fluorescence Experiment: Preliminary Report.
I. Adler,Jacob I. Trombka,J. Gerard,Paul D. Lowman,R. Schmadebeck,H. Blodget,E. Eller,Lo I Yin,R. Lamothe,P. Gorenstein,Paul Bjorkholm +10 more
TL;DR: The results indicate the existence of a differential lunar highland crust, probably feldspathic, related to the plagioclase-rich materials previously found in the samples from Apollo 11, Apollo 12, Apollo 14, Apollo 15, and Luna 16.
Journal ArticleDOI
Apollo 16 geochemical x-ray fluorescence experiment: preliminary report.
I. Adler,Jacob I. Trombka,J. Gerard,Paul D. Lowman,R. Schmadebeck,H. Blodget,E. Eller,Lo I Yin,R. Lamothe,G. Osswald,P. Gorenstein,Paul Bjorkholm,H. Gursky,B. Harris +13 more
TL;DR: The lunar surface was mapped with respect to magnesium, aluminum, and silicon as aluminum/ silicon and magnesium/ silicon intensity ratios along the projected ground tracks swept out by the orbiting Apollo 16 spacecraft to confirm the idea that the moon has a widespread differentiated crust (the highlands).
Journal ArticleDOI
Remote X-ray spectrometry for NEAR and future missions: Modeling and analyzing X-ray production from source to surface
P. E. Clark,J. I. Trombka +1 more
TL;DR: In this article, the authors discuss the nature of such variations expected for missions to an asteroid, the Moon, and Mercury, and discuss an effective means of removing the effects of solar variability from surface measurements, as indicated by the agreement between theoretical models presented here and Apollo X-ray observations.
Journal ArticleDOI
Compositional mapping with the NEAR X ray/gamma ray spectrometer
Jacob I. Trombka,S. R. Floyd,William V. Boynton,Samuel Bailey,J. Brückner,S. W. Squyres,Larry G. Evans,Pamela Elizabeth Clark,R. D. Starr,E. M. Fiore,Robert E. Gold,John O. Goldsten,Ralph L. McNutt +12 more
TL;DR: The X ray/gamma ray spectrometer (XGRS) instrument on board the NEAR spacecraft will map asteroid 433 Eros in the 07 keV to 10 MeV energy region as discussed by the authors.
Related Papers (5)
X‐ray fluorescence measurements of the surface elemental composition of asteroid 433 Eros
The elemental composition of asteroid 433 Eros: Results of the NEAR-Shoemaker X-ray spectrometer
J. Trombka,S. W. Squyres,J. Brückner,William V. Boynton,Robert C. Reedy,Timothy J. McCoy,P. Gorenstein,Larry G. Evans,James R. Arnold,R. D. Starr,Larry R. Nittler,M. E. Murphy,I. Mikheeva,Ralph L. McNutt,T. P. McClanahan,E. McCartney,John O. Goldsten,Robert E. Gold,S. R. Floyd,Pamela Elizabeth Clark,Thomas H. Burbine,J. S. Bhangoo,Samuel Bailey,M. Petaev +23 more
The X-Ray Spectrometer on the MESSENGER Spacecraft
C. E. Schlemm,R. D. Starr,George C. Ho,K. Bechtold,Sarah A. Hamilton,John D. Boldt,William V. Boynton,Walter Bradley,Martin Fraeman,Robert E. Gold,John O. Goldsten,John Hayes,S. E. Jaskulek,Egidio Rossano,Robert A. Rumpf,Edward D. Schaefer,K. Strohbehn,Richard G. Shelton,Raymond E. Thompson,Jacob I. Trombka,Bruce D. Williams +20 more