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Accession Number N20120017379
Title Laser Ablation Mass Spectrometer (LAMS) as a Standoff Analyzer in Space Missions for Airless Bodies.
Publication Date Oct 2012
Media Count 14p
Personal Author C. M. Corrigan D. E. Pugel G. G. Managadze J. H. Doty W. B. Brinckerhoff X. Li
Abstract A laser ablation mass spectrometer (LAMS) based on a time-of-flight (TOF) analyzer with adjustable drift length is proposed as a standoff elemental composition sensor for space missions to airless bodies. It is found that the use of a retarding potential analyzer in combination with a two-stage reflectron enables LAMS to be operated at variable drift length. For field-free drift lengths between 33 cm to 100 cm, at least unit mass resolution can be maintained solely by adjustment of internal voltages, and without resorting to drastic reductions in sensitivity. Therefore, LAMS should be able to be mounted on a robotic arm and analyze samples at standoff distances of up to several tens of cm, permitting high operational flexibility and wide area coverage of heterogeneous regolith on airless bodies.
Keywords Chemical composition
Extraterrestrial environments
Laser ablation
Mass spectrometers
Regolith
Robot arms
Sampling
Space missions


 
Source Agency National Aeronautics and Space Administration
NTIS Subject Category 46C - Optics & Lasers
84A - Astronautics
Corporate Author Goddard Space Flight Center, Greenbelt, MD.
Document Type Journal article
Title Note N/A
NTIS Issue Number 1316
Contract Number N/A

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