Alpha particle X-ray spectrometer - Wikipedia
An alpha particle X-ray spectrometer (APXS) is a spectrometer that analyses the chemical element composition of a sample from scattered alpha particles and fluorescent X-rays after a sample is irradiated with alpha particles and X-rays from radioactive sources. [1]
The Alpha Particle X-Ray Spectrometer (APXS): An In-Depth Guide
2023年8月26日 · Explore the revolutionary role of the Alpha Particle X-ray Spectrometer (APXS) in space missions like Chandrayaan-3. Learn how this automated mobile lab identifies elemental compositions in celestial bodies, shaping our understanding of planetary geology.
The Athena Alpha Particle X-ray Spectrometer works by exposing martian materials to energetic alpha particles and x rays from a radioactive 244 Cm source, and then measuring the energy spectra of backscattered alphas and emitted x rays.
Science Instruments - NASA Science
Alpha Particle X-Ray Spectrometer. The Alpha Particle X-Ray Spectrometer on the Mars Exploration Rovers, Spirit and Opportunity, is also called the APXS. The APXS reveals the elemental chemistry of rocks and soils by measuring the distinctive way differentdifference materials respond to two kinds of radiation: X-rays and alpha particles.
Curiosity Science Instruments - NASA Science
Alpha Particle X-Ray Spectrometer (APXS) A spectrometer that measures the abundance of chemical elements in rocks and soils. Location of Alpha Particle X-Ray Spectrometer (APXS) on the Mars Curiosity rover.
NASA - NSSDCA - Experiment - Details
3 天之前 · Six alpha detectors surround the source and inside these is a high-resolution silicon drift X-ray detector. A pair of doors protects the sensor from martian dust. When the sensor head is put in place, the doors swing open to expose the source and detectors. The instrument electronics are housed in the warm electronics box.
Alpha Particle X‐Ray Spectrometer (APXS): Results from Gusev …
2006年1月24日 · [2] The Alpha Particle X-ray Spectrometer (APXS) is part of the Athena instrument suite carried on both Mars Exploration Rovers (MER) [Squyres et al., 2003]. It determines the chemical composition of rocks and soils by x-ray spectroscopy.
abundance on Lunar surface close to the landing site. Elemental abundance es-timation is achieved by measurement of uorescence spectrum emitted by the Lunar material due to excitati.
The Rosetta Alpha Particle X-Ray Spectrometer (APXS)
2007年1月17日 · The Alpha Particle X-Ray Spectrometer (APXS) is a small instrument to determine the elemental composition of a given sample. For the ESA Rosetta mission, the periodical comet 67P/Churyumov-Gerasimenko was selected as the target comet, where the lander PHILAE (after landing) will carry out in-situ observations.
The new Athena alpha particle X‐ray spectrometer for the Mars ...
2003年11月11日 · [70] The new alpha particle X-ray spectrometer (APXS) is a small instrument to determine in situ the chemistry of various samples at landing sites on Mars. The instrument uses two different methods for analysis: X-ray spectroscopy (X …