کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1781864 1523964 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The laser ablation ion funnel: Sampling for in situ mass spectrometry on Mars
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فیزیک زمین (ژئو فیزیک)
پیش نمایش صفحه اول مقاله
The laser ablation ion funnel: Sampling for in situ mass spectrometry on Mars
چکیده انگلیسی

A considerable investment has been made by NASA and other space agencies to develop instrumentation suitable for in situ analytical investigation of extra terrestrial bodies including various mass spectrometers (time-of-flight, quadrupole ion trap, quadrupole mass filters, etc.). However, the front-end sample handling that is needed to collect and prepare samples for interrogation by such instrumentation remains underdeveloped. Here we describe a novel approach tailored to the exploration of Mars where ions are created in the ambient atmosphere via laser ablation and then efficiently transported into a mass spectrometer for in situ analysis using an electrodynamic ion funnel. This concept would enable elemental and isotopic analysis of geological samples with the analysis of desorbed organic material a possibility as well. Such an instrument would be suitable for inclusion on all potential missions currently being considered such as the Mid-Range Rover, the Astrobiology Field Laboratory, and Mars Sample Return (i.e., as a sample pre-selection triage instrument), among others.

Research highlights
► We describe a laser ablation ionization ion funnel to provide in situ sampling for mass spectrometry on Mars.
► We demonstrate the ability of this instrument concept to ionize a solid sample within a simulated Martian atmosphere, and to efficiently capture and focus the ions into a mass spectrometer for analysis.
► Advantages, potential deployment strategies, and future development efforts are discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Planetary and Space Science - Volume 59, Issues 5–6, April 2011, Pages 387–393
نویسندگان
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