Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Alpha Particle X-ray Spectrometer"'
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 490:61-66
Mono-mineral and ultramafic geochemical reference materials (GRMs) were analyzed using a 2.5 MeV broad-beam proton-induced X-ray emission (PIXE) system designed to emulate the PIXE branch of the Mars Science Laboratory alpha-particle X-ray spectromet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ac98fe5c1a25417d155df099fadf7c0
https://doi.org/10.1016/j.nimb.2021.01.010
https://doi.org/10.1016/j.nimb.2021.01.010
Publikováno v:
Acta Astronautica. 165:32-42
Alongside major and minor elements, trace elements in Martian samples quantified through geochemical analyses by the Mars Science Laboratory (MSL, Curiosity) Alpha Particle X-ray Spectrometer (APXS) provide insight into ancient environments on Mars.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62340955a98f0b85634411812c26f189
https://doi.org/10.1016/j.actaastro.2019.08.026
https://doi.org/10.1016/j.actaastro.2019.08.026
Autor:
Scott VanBommel, D.W. Tesselaar, D.D. Thomson, N.G. Holmes, John L. Campbell, Erin L. Flannigan
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 447:22-29
In terrestrial instruments for X-ray emission analysis (e.g. X-ray fluorescence, electron microprobe) the angle of excitation and the angle of characteristic X-ray emission by samples are typically well-defined. This is not the case for the Mars rove
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::393d70fd768a3d66763083f8f3c7e657
https://doi.org/10.1016/j.nimb.2019.03.036
https://doi.org/10.1016/j.nimb.2019.03.036
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 441:79-87
Simulation software was developed that accurately emulates the response of the Mars Science Laboratory (MSL) Alpha Particle X-ray Spectrometer (APXS) under variable experimental conditions including temperature, standoff, measurement duration, and ta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::451d0679e3b381c6d3e82a315cae6eb9
https://doi.org/10.1016/j.nimb.2018.12.040
https://doi.org/10.1016/j.nimb.2018.12.040
Autor:
G. M. Perrett, Dustin Tesselaar, Steven W. Squyres, Mariek E. Schmidt, Samantha L. Bray, John Campbell, Nicholas J. Bradley, J. A. Berger, Cathy Ly, Rebekka E. Lee
Publikováno v:
Journal of Geophysical Research: Planets. 123:1649-1673
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2b4985e7123fe42c44a299816b377e6
https://doi.org/10.1029/2018je005553
https://doi.org/10.1029/2018je005553
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 414:38-44
Multiple ionization satellites are prominent features in X-ray spectra induced by MeV energy alpha particles. It follows that the accuracy of PIXE analysis using alpha particles can be improved if these features are explicitly incorporated in the pea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acfdddc017adff9a540eb3669c996880
https://doi.org/10.1016/j.nimb.2017.10.001
https://doi.org/10.1016/j.nimb.2017.10.001
Autor:
John L. Campbell, Erin L. Flannigan
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 413:19-26
A 2.5 MeV broad-beam PIXE system was designed to emulate the alpha particle X-ray spectrometer (APXS) of the Curiosity rover. APXS measurements of the light elements (sodium, magnesium and aluminum) in powdered rock standards showed systematic deviat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f27ce433a1380316a08602eab69aa45
https://doi.org/10.1016/j.nimb.2017.10.002
https://doi.org/10.1016/j.nimb.2017.10.002
Autor:
Jeff A. Berger, Scott VanBommel, Ralf Gellert, Marie J. McBride, Lucy M. Thompson, Kenneth S. Edgett, Michelle E. Minitti, John Campbell, N. I. Boyd
Publikováno v:
X-Ray Spectrometry. 46:229-236
The Alpha Particle X-ray Spectrometer (APXS) onboard the Mars rover Curiosity conducts high-precision in situ chemical measurements of rocks and regolith. Target surfaces are not always flat and thus can pose issues for interpretations that assume su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::213987cd8fc3fabbb631ca78656d5eb8
https://doi.org/10.1002/xrs.2755
https://doi.org/10.1002/xrs.2755
Publikováno v:
X-Ray Spectrometry. 46:171-179
The shallow interrogation depth of the lightest elements (Na, Mg, Al, and Si) detected by the particle-induced X-ray emission branch of the Curiosity Rover's alpha particle X-ray spectrometer suggests that the X-rays of these elements very likely eme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b96ee2385bd0d0951754bf351de48a0
https://doi.org/10.1002/xrs.2743
https://doi.org/10.1002/xrs.2743
Autor:
Hanania, Jordan
The Mars Science Laboratory’s Alpha Particle X-ray Spectrometer (APXS) performs bulk-chemistry analyses on the surface of Mars. It is capable of quantifying elements Z>10 through its primary mechanisms of X-Ray Fluorescence and Particle Induced X-r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______453::c277df176d46bc028534dfa3d63183a0
https://hdl.handle.net/10214/17660
https://hdl.handle.net/10214/17660
